digilib-old: servlet/src/digilib/servlet/Scaler.java annotate

annotate servlet/src/digilib/servlet/Scaler.java @ 335:9bce7008a514

Servlet version 1.5.3b - new getLastModified improves local caching of pages

author	robcast
date	Wed, 03 Nov 2004 14:22:27 +0100
parents	9db80eb0f50b
children	e1c10653f143

rev	line source
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	1 /*
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	2 * Scaler -- Scaler servlet main class
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	3 *
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	4 * Digital Image Library servlet components
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	5 *
303 9db80eb0f50b Servlet version 1.5.1b robcast parents: 298 diff changeset	6 * Copyright (C) 200-2004 Robert Casties (robcast@mail.berlios.de)
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	7 *
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	8 * This program is free software; you can redistribute it and/or modify it
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	9 * under the terms of the GNU General Public License as published by the Free
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	10 * Software Foundation; either version 2 of the License, or (at your option)
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	11 * any later version.
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	12 *
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	13 * Please read license.txt for the full details. A copy of the GPL may be found
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	14 * at http://www.gnu.org/copyleft/lgpl.html
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	15 *
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	16 * You should have received a copy of the GNU General Public License along with
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	17 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	18 * Place, Suite 330, Boston, MA 02111-1307 USA
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	19 *
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	20 */
1 0ff3ede32060 Initial revision robcast parents: diff changeset	21
0ff3ede32060 Initial revision robcast parents: diff changeset	22 package digilib.servlet;
0ff3ede32060 Initial revision robcast parents: diff changeset	23
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	24 import java.awt.geom.AffineTransform;
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	25 import java.awt.geom.NoninvertibleTransformException;
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	26 import java.awt.geom.Rectangle2D;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	27 import java.io.File;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	28 import java.io.IOException;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	29 import java.util.List;
1 0ff3ede32060 Initial revision robcast parents: diff changeset	30
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	31 import javax.servlet.ServletConfig;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	32 import javax.servlet.ServletContext;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	33 import javax.servlet.ServletException;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	34 import javax.servlet.http.HttpServlet;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	35 import javax.servlet.http.HttpServletRequest;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	36 import javax.servlet.http.HttpServletResponse;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	37
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	38 import org.apache.log4j.Logger;
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	39
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	40 import digilib.auth.AuthOpException;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	41 import digilib.auth.AuthOps;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	42 import digilib.image.ImageOpException;
284 c633e97cac12 Servlet version 1.22b1 robcast parents: 275 diff changeset	43 import digilib.image.ImageOps;
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	44 import digilib.image.ImageSize;
86 997ba69afb81 New version 1.8b1. robcast parents: 85 diff changeset	45 import digilib.io.DocuDirCache;
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	46 import digilib.io.DocuDirectory;
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	47 import digilib.io.DocuDirent;
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	48 import digilib.io.FileOpException;
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	49 import digilib.io.FileOps;
161 ace2a4a0ba74 servlet version 1.16a4 robcast parents: 156 diff changeset	50 import digilib.io.ImageFile;
ace2a4a0ba74 servlet version 1.16a4 robcast parents: 156 diff changeset	51 import digilib.io.ImageFileset;
1 0ff3ede32060 Initial revision robcast parents: diff changeset	52
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	53 /**
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	54 * @author casties
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	55 */
1 0ff3ede32060 Initial revision robcast parents: diff changeset	56 //public class Scaler extends HttpServlet implements SingleThreadModel {
0ff3ede32060 Initial revision robcast parents: diff changeset	57 public class Scaler extends HttpServlet {
0ff3ede32060 Initial revision robcast parents: diff changeset	58
263 e16d132aa6f6 Servlet version 1.21b1 robcast parents: 253 diff changeset	59 private static final long serialVersionUID = -325080527268912852L;
e16d132aa6f6 Servlet version 1.21b1 robcast parents: 253 diff changeset	60
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	61 /** digilib servlet version (for all components) */
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	62 public static final String dlVersion = "1.5.3b";
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	63
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	64 /** logger for accounting requests */
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	65 private static Logger accountlog = Logger.getLogger("account.request");
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	66
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	67 /** gengeral logger for this class */
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	68 private static Logger logger = Logger.getLogger("digilib.servlet");
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	69
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	70 /** logger for authentication related */
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	71 private static Logger authlog = Logger.getLogger("digilib.auth");
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	72
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	73 /** general error code */
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	74 public static final int ERROR_UNKNOWN = 0;
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	75
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	76 /** error code for authentication error */
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	77 public static final int ERROR_AUTH = 1;
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	78
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	79 /** error code for file operation error */
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	80 public static final int ERROR_FILE = 2;
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	81
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	82 /** error code for image operation error */
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	83 public static final int ERROR_IMAGE = 3;
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	84
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	85 /** DocuDirCache instance */
86 997ba69afb81 New version 1.8b1. robcast parents: 85 diff changeset	86 DocuDirCache dirCache;
161 ace2a4a0ba74 servlet version 1.16a4 robcast parents: 156 diff changeset	87
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	88 /** authentication error image file */
153 4980c969be4c Servlet version 1.16a1 robcast parents: 151 diff changeset	89 File denyImgFile;
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	90
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	91 /** image error image file */
153 4980c969be4c Servlet version 1.16a1 robcast parents: 151 diff changeset	92 File errorImgFile;
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	93
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	94 /** subsampling before scaling */
153 4980c969be4c Servlet version 1.16a1 robcast parents: 151 diff changeset	95 float minSubsample = 2f;
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	96
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	97 /** send files as is? */
153 4980c969be4c Servlet version 1.16a1 robcast parents: 151 diff changeset	98 boolean sendFileAllowed = true;
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	99
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	100 /** default scaling quality */
153 4980c969be4c Servlet version 1.16a1 robcast parents: 151 diff changeset	101 int defaultQuality = 1;
1 0ff3ede32060 Initial revision robcast parents: diff changeset	102
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	103 /** DigilibConfiguration instance */
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	104 DigilibConfiguration dlConfig;
1 0ff3ede32060 Initial revision robcast parents: diff changeset	105
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	106 /** use authorization database */
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	107 boolean useAuthorization = true;
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	108
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	109 /** AuthOps instance */
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	110 AuthOps authOp;
1 0ff3ede32060 Initial revision robcast parents: diff changeset	111
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	112 // EXPRIMENTAL
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	113 /** try to enlarge cropping area for "oblique" angles */
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	114 boolean wholeRotArea = false;
cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	115
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	116 /**
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	117 * Initialisation on first run.
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	118 *
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	119 * @see javax.servlet.Servlet#init(javax.servlet.ServletConfig)
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	120 */
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	121 public void init(ServletConfig config) throws ServletException {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	122 super.init(config);
1 0ff3ede32060 Initial revision robcast parents: diff changeset	123
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	124 System.out
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	125 .println("***** Digital Image Library Image Scaler Servlet (version "
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	126 + dlVersion + ") *****");
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	127 // say hello in the log file
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	128 logger
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	129 .info("***** Digital Image Library Image Scaler Servlet (version "
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	130 + dlVersion + ") *****");
1 0ff3ede32060 Initial revision robcast parents: diff changeset	131
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	132 // get our ServletContext
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	133 ServletContext context = config.getServletContext();
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	134 // see if there is a Configuration instance
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	135 dlConfig = (DigilibConfiguration) context
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	136 .getAttribute("digilib.servlet.configuration");
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	137 if (dlConfig == null) {
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	138 // no Configuration
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	139 throw new ServletException("No Configuration!");
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	140 }
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	141 // set our AuthOps
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	142 useAuthorization = dlConfig.getAsBoolean("use-authorization");
153 4980c969be4c Servlet version 1.16a1 robcast parents: 151 diff changeset	143 authOp = (AuthOps) dlConfig.getValue("servlet.auth.op");
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	144
86 997ba69afb81 New version 1.8b1. robcast parents: 85 diff changeset	145 // DocuDirCache instance
153 4980c969be4c Servlet version 1.16a1 robcast parents: 151 diff changeset	146 dirCache = (DocuDirCache) dlConfig.getValue("servlet.dir.cache");
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	147 denyImgFile = (File) dlConfig.getValue("denied-image");
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	148 errorImgFile = (File) dlConfig.getValue("error-image");
153 4980c969be4c Servlet version 1.16a1 robcast parents: 151 diff changeset	149 sendFileAllowed = dlConfig.getAsBoolean("sendfile-allowed");
4980c969be4c Servlet version 1.16a1 robcast parents: 151 diff changeset	150 minSubsample = dlConfig.getAsFloat("subsample-minimum");
4980c969be4c Servlet version 1.16a1 robcast parents: 151 diff changeset	151 defaultQuality = dlConfig.getAsInt("default-quality");
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	152 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	153
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	154 /** Process the HTTP Get request */
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	155 public void doGet(HttpServletRequest request, HttpServletResponse response)
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	156 throws ServletException, IOException {
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	157 accountlog.info("GET from " + request.getRemoteAddr());
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	158 // create new request with defaults
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	159 DigilibRequest dlReq = new DigilibRequest();
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	160 // set with request parameters
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	161 dlReq.setWithRequest(request);
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	162 // add DigilibRequest to ServletRequest
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	163 request.setAttribute("digilib.servlet.request", dlReq);
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	164 // do the processing
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	165 processRequest(request, response);
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	166 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	167
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	168 /** Process the HTTP Post request */
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	169 public void doPost(HttpServletRequest request, HttpServletResponse response)
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	170 throws ServletException, IOException {
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	171 accountlog.info("POST from " + request.getRemoteAddr());
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	172 // create new request with defaults
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	173 DigilibRequest dlReq = new DigilibRequest();
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	174 // set with request parameters
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	175 dlReq.setWithRequest(request);
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	176 // add DigilibRequest to ServletRequest
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	177 request.setAttribute("digilib.servlet.request", dlReq);
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	178 // do the processing
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	179 processRequest(request, response);
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	180 }
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	181
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	182 /*
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	183 * (non-Javadoc)
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	184 *
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	185 * @see javax.servlet.http.HttpServlet#getLastModified(javax.servlet.http.HttpServletRequest)
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	186 */
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	187 protected long getLastModified(HttpServletRequest request) {
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	188 accountlog.debug("GetLastModified from " + request.getRemoteAddr());
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	189 long mtime = -1;
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	190 // create new request with defaults
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	191 DigilibRequest dlReq = new DigilibRequest();
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	192 // set with request parameters
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	193 dlReq.setWithRequest(request);
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	194 // find the requested file
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	195 DocuDirent f = findFile(dlReq);
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	196 if (f != null) {
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	197 DocuDirectory dd = (DocuDirectory) f.getParent();
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	198 mtime = dd.getDirMTime() / 1000 * 1000;
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	199 }
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	200 logger.debug("last modified: "+mtime);
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	201 return mtime;
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	202 }
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	203
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	204 /** main request handler. */
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	205 void processRequest(HttpServletRequest request, HttpServletResponse response)
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	206 throws ServletException {
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	207
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	208 if (dlConfig == null) {
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	209 throw new ServletException("ERROR: No Configuration!");
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	210 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	211
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	212 accountlog.debug("request: " + request.getQueryString());
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	213 logger.debug("request: " + request.getQueryString());
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	214
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	215 // time for benchmarking
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	216 long startTime = System.currentTimeMillis();
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	217 // output mime-type
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	218 String mimeType = "image/png";
1 0ff3ede32060 Initial revision robcast parents: diff changeset	219
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	220 /* parameters for a session */
1 0ff3ede32060 Initial revision robcast parents: diff changeset	221
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	222 // scale the image file to fit window size i.e. respect dw,dh
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	223 boolean scaleToFit = true;
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	224 // scale the image by a fixed factor only
cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	225 boolean absoluteScale = false;
122 a32e8c80e2f2 Servlet Version 1.10b1 robcast parents: 116 diff changeset	226 // only crop the image to fit
a32e8c80e2f2 Servlet Version 1.10b1 robcast parents: 116 diff changeset	227 boolean cropToFit = false;
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	228 // send the file as is
04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	229 boolean sendFile = false;
04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	230 // use low resolution images only
04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	231 boolean loresOnly = false;
04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	232 // use hires images only
122 a32e8c80e2f2 Servlet Version 1.10b1 robcast parents: 116 diff changeset	233 boolean hiresOnly = false;
303 9db80eb0f50b Servlet version 1.5.1b robcast parents: 298 diff changeset	234 // send the image always as JPEG
9db80eb0f50b Servlet version 1.5.1b robcast parents: 298 diff changeset	235 boolean forceJPEG = false;
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	236 // interpolation to use for scaling
153 4980c969be4c Servlet version 1.16a1 robcast parents: 151 diff changeset	237 int scaleQual = defaultQuality;
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	238 // send html error message (or image file)
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	239 boolean errorMsgHtml = false;
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	240 // mirror the image
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	241 boolean doMirror = false;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	242 // angle of mirror axis
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	243 float mirrorAngle = 0;
130 c36944be0b58 Servlet Version 1.11a1with original size(!) robcast parents: 129 diff changeset	244 // original (hires) image resolution
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	245 float origResX = 0;
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	246 float origResY = 0;
1 0ff3ede32060 Initial revision robcast parents: diff changeset	247
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	248 /* request parameters */
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	249
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	250 DigilibRequest dlRequest = (DigilibRequest) request
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	251 .getAttribute("digilib.servlet.request");
1 0ff3ede32060 Initial revision robcast parents: diff changeset	252
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	253 // destination image width
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	254 int paramDW = dlRequest.getAsInt("dw");
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	255 // destination image height
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	256 int paramDH = dlRequest.getAsInt("dh");
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	257 // relative area x_offset (0..1)
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	258 float paramWX = dlRequest.getAsFloat("wx");
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	259 // relative area y_offset
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	260 float paramWY = dlRequest.getAsFloat("wy");
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	261 // relative area width (0..1)
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	262 float paramWW = dlRequest.getAsFloat("ww");
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	263 // relative area height
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	264 float paramWH = dlRequest.getAsFloat("wh");
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	265 // scale factor (additional to dw/width, dh/height)
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	266 float paramWS = dlRequest.getAsFloat("ws");
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	267 // rotation angle
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	268 float paramROT = dlRequest.getAsFloat("rot");
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	269 // contrast enhancement
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	270 float paramCONT = dlRequest.getAsFloat("cont");
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	271 // brightness enhancement
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	272 float paramBRGT = dlRequest.getAsFloat("brgt");
86 997ba69afb81 New version 1.8b1. robcast parents: 85 diff changeset	273 // color modification
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	274 float[] paramRGBM = null;
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	275 Parameter p = dlRequest.get("rgbm");
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	276 if (p.hasValue() && (!p.getAsString().equals("0/0/0"))) {
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	277 paramRGBM = p.parseAsFloatArray("/");
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	278 }
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	279 float[] paramRGBA = null;
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	280 p = dlRequest.get("rgba");
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	281 if (p.hasValue() && (!p.getAsString().equals("0/0/0"))) {
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	282 paramRGBA = p.parseAsFloatArray("/");
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	283 }
130 c36944be0b58 Servlet Version 1.11a1with original size(!) robcast parents: 129 diff changeset	284 // destination resolution (DPI)
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	285 float paramDDPIX = dlRequest.getAsFloat("ddpix");
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	286 float paramDDPIY = dlRequest.getAsFloat("ddpiy");
130 c36944be0b58 Servlet Version 1.11a1with original size(!) robcast parents: 129 diff changeset	287 if ((paramDDPIX == 0) \|\| (paramDDPIY == 0)) {
c36944be0b58 Servlet Version 1.11a1with original size(!) robcast parents: 129 diff changeset	288 // if X or Y resolution isn't set, use DDPI
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	289 paramDDPIX = dlRequest.getAsFloat("ddpi");
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	290 paramDDPIY = paramDDPIX;
130 c36944be0b58 Servlet Version 1.11a1with original size(!) robcast parents: 129 diff changeset	291 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	292
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	293 /*
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	294 * operation mode: "fit": always fit to page, "clip": send original
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	295 * resolution cropped, "file": send whole file (if allowed)
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	296 */
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	297 if (dlRequest.hasOption("mo", "clip")) {
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	298 scaleToFit = false;
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	299 absoluteScale = false;
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	300 cropToFit = true;
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	301 sendFile = false;
04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	302 hiresOnly = true;
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	303 } else if (dlRequest.hasOption("mo", "fit")) {
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	304 scaleToFit = true;
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	305 absoluteScale = false;
122 a32e8c80e2f2 Servlet Version 1.10b1 robcast parents: 116 diff changeset	306 cropToFit = false;
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	307 sendFile = false;
04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	308 hiresOnly = false;
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	309 } else if (dlRequest.hasOption("mo", "osize")) {
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	310 scaleToFit = false;
cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	311 absoluteScale = true;
122 a32e8c80e2f2 Servlet Version 1.10b1 robcast parents: 116 diff changeset	312 cropToFit = false;
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	313 sendFile = false;
122 a32e8c80e2f2 Servlet Version 1.10b1 robcast parents: 116 diff changeset	314 hiresOnly = true;
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	315 }
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	316 // operation mode: "lores": try to use scaled image, "hires": use
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	317 // unscaled image
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	318 // "autores": try best fitting resolution
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	319 if (dlRequest.hasOption("mo", "lores")) {
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	320 loresOnly = true;
04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	321 hiresOnly = false;
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	322 } else if (dlRequest.hasOption("mo", "hires")) {
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	323 loresOnly = false;
04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	324 hiresOnly = true;
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	325 } else if (dlRequest.hasOption("mo", "autores")) {
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	326 loresOnly = false;
04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	327 hiresOnly = false;
04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	328 }
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	329 // operation mode: "errtxt": error message in html, "errimg": error
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	330 // image
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	331 if (dlRequest.hasOption("mo", "errtxt")) {
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	332 errorMsgHtml = true;
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	333 } else if (dlRequest.hasOption("mo", "errimg")) {
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	334 errorMsgHtml = false;
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	335 }
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	336 // operation mode: "q0" - "q2": interpolation quality
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	337 if (dlRequest.hasOption("mo", "q0")) {
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	338 scaleQual = 0;
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	339 } else if (dlRequest.hasOption("mo", "q1")) {
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	340 scaleQual = 1;
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	341 } else if (dlRequest.hasOption("mo", "q2")) {
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	342 scaleQual = 2;
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	343 }
303 9db80eb0f50b Servlet version 1.5.1b robcast parents: 298 diff changeset	344 // operation mode: "jpg": always use JPEG
9db80eb0f50b Servlet version 1.5.1b robcast parents: 298 diff changeset	345 if (dlRequest.hasOption("mo", "jpg")) {
9db80eb0f50b Servlet version 1.5.1b robcast parents: 298 diff changeset	346 forceJPEG = true;
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	347 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	348
185 91f28e4fee8f Servlet version 1.18b2 robcast parents: 181 diff changeset	349 // check with the maximum allowed size (if set)
91f28e4fee8f Servlet version 1.18b2 robcast parents: 181 diff changeset	350 int maxImgSize = dlConfig.getAsInt("max-image-size");
91f28e4fee8f Servlet version 1.18b2 robcast parents: 181 diff changeset	351 if (maxImgSize > 0) {
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	352 paramDW = (paramDW * paramWS > maxImgSize) ? (int) (maxImgSize / paramWS)
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	353 : paramDW;
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	354 paramDH = (paramDH * paramWS > maxImgSize) ? (int) (maxImgSize / paramWS)
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	355 : paramDH;
185 91f28e4fee8f Servlet version 1.18b2 robcast parents: 181 diff changeset	356 }
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	357
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	358 //"big" try for all file/image actions
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	359 try {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	360
161 ace2a4a0ba74 servlet version 1.16a4 robcast parents: 156 diff changeset	361 // ImageFileset of the image to load
ace2a4a0ba74 servlet version 1.16a4 robcast parents: 156 diff changeset	362 ImageFileset fileset = null;
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	363
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	364 /* find the file to load/send */
1 0ff3ede32060 Initial revision robcast parents: diff changeset	365
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	366 // get PathInfo
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	367 String loadPathName = dlRequest.getFilePath();
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	368
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	369 /* check permissions */
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	370 if (useAuthorization) {
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	371 // get a list of required roles (empty if no restrictions)
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	372 List rolesRequired = authOp.rolesForPath(loadPathName, request);
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	373 if (rolesRequired != null) {
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	374 authlog.debug("Role required: " + rolesRequired);
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	375 authlog.debug("User: " + request.getRemoteUser());
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	376 // is the current request/user authorized?
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	377 if (!authOp.isRoleAuthorized(rolesRequired, request)) {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	378 // send deny answer and abort
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	379 throw new AuthOpException();
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	380 }
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	381 }
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	382 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	383
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	384 // find the file
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	385 fileset = (ImageFileset) findFile(dlRequest);
94 d9bfec4f046e New version 1.8b4. robcast parents: 86 diff changeset	386 if (fileset == null) {
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	387 throw new FileOpException("File " + loadPathName + "("
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	388 + dlRequest.getAsInt("pn") + ") not found.");
94 d9bfec4f046e New version 1.8b4. robcast parents: 86 diff changeset	389 }
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	390
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	391 /* calculate expected source image size */
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	392 ImageSize expectedSourceSize = new ImageSize();
122 a32e8c80e2f2 Servlet Version 1.10b1 robcast parents: 116 diff changeset	393 if (scaleToFit) {
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	394 float scale = (1 / Math.min(paramWW, paramWH)) * paramWS;
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	395 expectedSourceSize.setSize((int) (paramDW * scale),
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	396 (int) (paramDH * scale));
122 a32e8c80e2f2 Servlet Version 1.10b1 robcast parents: 116 diff changeset	397 } else {
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	398 expectedSourceSize.setSize((int) (paramDW * paramWS),
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	399 (int) (paramDH * paramWS));
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	400 }
cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	401
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	402 ImageFile fileToLoad;
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	403 /* select a resolution */
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	404 if (hiresOnly) {
04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	405 // get first element (= highest resolution)
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	406 fileToLoad = fileset.getBiggest();
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	407 } else if (loresOnly) {
04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	408 // enforced lores uses next smaller resolution
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	409 fileToLoad = fileset.getNextSmaller(expectedSourceSize);
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	410 if (fileToLoad == null) {
04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	411 // this is the smallest we have
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	412 fileToLoad = fileset.getSmallest();
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	413 }
04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	414 } else {
130 c36944be0b58 Servlet Version 1.11a1with original size(!) robcast parents: 129 diff changeset	415 // autores: use next higher resolution
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	416 fileToLoad = fileset.getNextBigger(expectedSourceSize);
122 a32e8c80e2f2 Servlet Version 1.10b1 robcast parents: 116 diff changeset	417 if (fileToLoad == null) {
130 c36944be0b58 Servlet Version 1.11a1with original size(!) robcast parents: 129 diff changeset	418 // this is the highest we have
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	419 fileToLoad = fileset.getBiggest();
122 a32e8c80e2f2 Servlet Version 1.10b1 robcast parents: 116 diff changeset	420 }
86 997ba69afb81 New version 1.8b1. robcast parents: 85 diff changeset	421 }
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	422 logger.info("Planning to load: " + fileToLoad.getFile());
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	423
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	424 /*
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	425 * send the image if its mo=(raw)file
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	426 */
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	427 if (dlRequest.hasOption("mo", "file")
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	428 \|\| dlRequest.hasOption("mo", "rawfile")) {
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	429 if (sendFileAllowed) {
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	430 String mt = null;
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	431 if (dlRequest.hasOption("mo", "rawfile")) {
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	432 mt = "application/octet-stream";
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	433 }
263 e16d132aa6f6 Servlet version 1.21b1 robcast parents: 253 diff changeset	434 logger.debug("Sending RAW File as is.");
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	435 ServletOps.sendFile(fileToLoad.getFile(), mt, response);
263 e16d132aa6f6 Servlet version 1.21b1 robcast parents: 253 diff changeset	436 logger.info("Done in "
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	437 + (System.currentTimeMillis() - startTime) + "ms");
263 e16d132aa6f6 Servlet version 1.21b1 robcast parents: 253 diff changeset	438 return;
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	439 }
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	440 }
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	441
86 997ba69afb81 New version 1.8b1. robcast parents: 85 diff changeset	442 // check the source image
122 a32e8c80e2f2 Servlet Version 1.10b1 robcast parents: 116 diff changeset	443 if (!fileToLoad.isChecked()) {
284 c633e97cac12 Servlet version 1.22b1 robcast parents: 275 diff changeset	444 ImageOps.checkFile(fileToLoad);
122 a32e8c80e2f2 Servlet Version 1.10b1 robcast parents: 116 diff changeset	445 }
86 997ba69afb81 New version 1.8b1. robcast parents: 85 diff changeset	446 // get the source image type
997ba69afb81 New version 1.8b1. robcast parents: 85 diff changeset	447 mimeType = fileToLoad.getMimetype();
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	448 // get the source image size
04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	449 ImageSize imgSize = fileToLoad.getSize();
04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	450
130 c36944be0b58 Servlet Version 1.11a1with original size(!) robcast parents: 129 diff changeset	451 // decide if the image can be sent as is
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	452 boolean mimetypeSendable = mimeType.equals("image/jpeg")
122 a32e8c80e2f2 Servlet Version 1.10b1 robcast parents: 116 diff changeset	453 \|\| mimeType.equals("image/png")
a32e8c80e2f2 Servlet Version 1.10b1 robcast parents: 116 diff changeset	454 \|\| mimeType.equals("image/gif");
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	455 boolean imagoOptions = dlRequest.hasOption("mo", "hmir")
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	456 \|\| dlRequest.hasOption("mo", "vmir") \|\| (paramROT != 0)
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	457 \|\| (paramRGBM != null) \|\| (paramRGBA != null)
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	458 \|\| (paramCONT != 0) \|\| (paramBRGT != 0);
139 11cfe4c89fdc Servlet version 1.11b1 with improved original-size. robcast parents: 130 diff changeset	459 boolean imageSendable = mimetypeSendable && !imagoOptions;
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	460
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	461 /*
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	462 * if not autoRes and image smaller than requested size then send as
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	463 * is. if autoRes and image has requested size then send as is. if
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	464 * not autoScale and not scaleToFit nor cropToFit then send as is
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	465 * (mo=file)
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	466 */
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	467 if (imageSendable
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	468 && ((loresOnly && fileToLoad.getSize().isSmallerThan(
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	469 expectedSourceSize)) \|\| (!(loresOnly \|\| hiresOnly) && fileToLoad
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	470 .getSize().fitsIn(expectedSourceSize)))) {
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	471
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	472 logger.debug("Sending File as is.");
1 0ff3ede32060 Initial revision robcast parents: diff changeset	473
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	474 ServletOps.sendFile(fileToLoad.getFile(), null, response);
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	475
afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	476 logger.info("Done in "
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	477 + (System.currentTimeMillis() - startTime) + "ms");
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	478 return;
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	479 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	480
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	481 // set missing dw or dh from aspect ratio
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	482 float imgAspect = fileToLoad.getAspect();
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	483 if (paramDW == 0) {
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	484 paramDW = (int) Math.round(paramDH * imgAspect);
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	485 } else if (paramDH == 0) {
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	486 paramDH = (int) Math.round(paramDW / imgAspect);
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	487 }
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 148 diff changeset	488
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	489 /*
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	490 * prepare resolution for original size
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	491 */
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	492 if (absoluteScale) {
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	493 // get original resolution from metadata
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	494 fileset.checkMeta();
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	495 origResX = fileset.getResX();
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	496 origResY = fileset.getResY();
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	497 if ((origResX == 0) \|\| (origResY == 0)) {
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	498 throw new ImageOpException("Missing image DPI information!");
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	499 }
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	500
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	501 if ((paramDDPIX == 0) \|\| (paramDDPIY == 0)) {
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	502 throw new ImageOpException(
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	503 "Missing display DPI information!");
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	504 }
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	505 }
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	506
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	507 /* crop and scale the image */
1 0ff3ede32060 Initial revision robcast parents: diff changeset	508
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	509 logger.debug("IMG: " + imgSize.getWidth() + "x"
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	510 + imgSize.getHeight());
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	511 logger.debug("time " + (System.currentTimeMillis() - startTime)
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	512 + "ms");
1 0ff3ede32060 Initial revision robcast parents: diff changeset	513
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	514 // coordinates and scaling
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	515 float areaXoff;
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	516 float areaYoff;
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	517 float areaWidth;
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	518 float areaHeight;
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	519 float scaleX;
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	520 float scaleY;
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	521 float scaleXY;
1 0ff3ede32060 Initial revision robcast parents: diff changeset	522
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	523 // coordinates using Java2D
cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	524 // image size in pixels
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	525 Rectangle2D imgBounds = new Rectangle2D.Float(0, 0, imgSize
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	526 .getWidth(), imgSize.getHeight());
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	527 // user window area in [0,1] coordinates
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	528 Rectangle2D relUserArea = new Rectangle2D.Float(paramWX, paramWY,
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	529 paramWW, paramWH);
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	530 // transform from relative [0,1] to image coordinates.
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	531 AffineTransform imgTrafo = AffineTransform.getScaleInstance(imgSize
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	532 .getWidth(), imgSize.getHeight());
85 4e6757e8ccd4 New enhanced ImageLoader stuff. robcast parents: 79 diff changeset	533 // transform user coordinate area to image coordinate area
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	534 Rectangle2D userImgArea = imgTrafo.createTransformedShape(
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	535 relUserArea).getBounds2D();
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	536
cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	537 // calculate scaling factors based on inner user area
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	538 if (scaleToFit) {
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	539 areaWidth = (float) userImgArea.getWidth();
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	540 areaHeight = (float) userImgArea.getHeight();
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	541 scaleX = paramDW / areaWidth * paramWS;
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	542 scaleY = paramDH / areaHeight * paramWS;
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	543 scaleXY = (scaleX > scaleY) ? scaleY : scaleX;
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	544 } else if (absoluteScale) {
cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	545 // absolute scale
130 c36944be0b58 Servlet Version 1.11a1with original size(!) robcast parents: 129 diff changeset	546 scaleX = paramDDPIX / origResX;
c36944be0b58 Servlet Version 1.11a1with original size(!) robcast parents: 129 diff changeset	547 scaleY = paramDDPIY / origResY;
c36944be0b58 Servlet Version 1.11a1with original size(!) robcast parents: 129 diff changeset	548 // currently only same scale :-(
c36944be0b58 Servlet Version 1.11a1with original size(!) robcast parents: 129 diff changeset	549 scaleXY = scaleX;
c36944be0b58 Servlet Version 1.11a1with original size(!) robcast parents: 129 diff changeset	550 areaWidth = paramDW / scaleXY * paramWS;
c36944be0b58 Servlet Version 1.11a1with original size(!) robcast parents: 129 diff changeset	551 areaHeight = paramDH / scaleXY * paramWS;
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	552 // reset user area size
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	553 userImgArea.setRect(userImgArea.getX(), userImgArea.getY(),
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	554 areaWidth, areaHeight);
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	555 } else {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	556 // crop to fit
85 4e6757e8ccd4 New enhanced ImageLoader stuff. robcast parents: 79 diff changeset	557 areaWidth = paramDW * paramWS;
4e6757e8ccd4 New enhanced ImageLoader stuff. robcast parents: 79 diff changeset	558 areaHeight = paramDH * paramWS;
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	559 // reset user area size
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	560 userImgArea.setRect(userImgArea.getX(), userImgArea.getY(),
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	561 areaWidth, areaHeight);
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	562 scaleX = 1f;
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	563 scaleY = 1f;
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	564 scaleXY = 1f;
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	565 }
85 4e6757e8ccd4 New enhanced ImageLoader stuff. robcast parents: 79 diff changeset	566
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	567 // enlarge image area for rotations to cover additional pixels
cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	568 Rectangle2D outerUserImgArea = userImgArea;
cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	569 Rectangle2D innerUserImgArea = userImgArea;
cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	570 if (wholeRotArea) {
cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	571 if (paramROT != 0) {
cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	572 try {
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	573 // rotate user area coordinates around center of user
d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	574 // area
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	575 AffineTransform rotTrafo = AffineTransform
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	576 .getRotateInstance(Math.toRadians(paramROT),
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	577 userImgArea.getCenterX(), userImgArea
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	578 .getCenterY());
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	579 // get bounds from rotated end position
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	580 innerUserImgArea = rotTrafo.createTransformedShape(
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	581 userImgArea).getBounds2D();
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	582 // get bounds from back-rotated bounds
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	583 outerUserImgArea = rotTrafo.createInverse()
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	584 .createTransformedShape(innerUserImgArea)
cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	585 .getBounds2D();
cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	586 } catch (NoninvertibleTransformException e1) {
cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	587 // this shouldn't happen anyway
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	588 logger.error(e1);
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	589 }
cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	590 }
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	591 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	592
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	593 logger.debug("Scale " + scaleXY + "(" + scaleX + "," + scaleY
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	594 + ") on " + outerUserImgArea);
1 0ff3ede32060 Initial revision robcast parents: diff changeset	595
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	596 // clip area at the image border
100 cc6a0b9ac78e digilib V1.9b1 robcast parents: 94 diff changeset	597 outerUserImgArea = outerUserImgArea.createIntersection(imgBounds);
85 4e6757e8ccd4 New enhanced ImageLoader stuff. robcast parents: 79 diff changeset	598
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	599 // check image parameters sanity
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	600 if ((outerUserImgArea.getWidth() < 1)
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	601 \|\| (outerUserImgArea.getHeight() < 1)
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	602 \|\| (scaleXY * outerUserImgArea.getWidth() < 2)
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	603 \|\| (scaleXY * outerUserImgArea.getHeight() < 2)) {
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 177 diff changeset	604 logger.error("ERROR: invalid scale parameter set!");
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	605 throw new ImageOpException("Invalid scale parameter set!");
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	606 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	607
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	608 /*
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	609 * submit the image worker job
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	610 */
85 4e6757e8ccd4 New enhanced ImageLoader stuff. robcast parents: 79 diff changeset	611
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	612 DigilibWorker job = new DigilibImageWorker(dlConfig, response,
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	613 mimeType, scaleQual, dlRequest, paramROT, paramCONT,
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	614 paramBRGT, paramRGBM, paramRGBA, fileToLoad, scaleXY,
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	615 outerUserImgArea, innerUserImgArea, minSubsample,
303 9db80eb0f50b Servlet version 1.5.1b robcast parents: 298 diff changeset	616 wholeRotArea, forceJPEG);
85 4e6757e8ccd4 New enhanced ImageLoader stuff. robcast parents: 79 diff changeset	617
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	618 job.run();
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	619 if (job.hasError()) {
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	620 throw new ImageOpException(job.getError().toString());
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	621 }
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	622
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	623 logger.debug("servlet done in "
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	624 + (System.currentTimeMillis() - startTime));
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	625
170 d40922628e4a Servlet Version 1.16b2 with new DigilibParameter code. robcast parents: 161 diff changeset	626 /* error handling */
1 0ff3ede32060 Initial revision robcast parents: diff changeset	627
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	628 } // end of "big" try
156 688ad0b8b0fa Servlet version 1.16a2 robcast parents: 153 diff changeset	629 catch (IOException e) {
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	630 logger.error("ERROR: File IO Error: " + e);
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	631 digilibError(errorMsgHtml, ERROR_FILE,
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	632 "ERROR: File IO Error: " + e, response);
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	633 } catch (AuthOpException e) {
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	634 logger.error("ERROR: Authorization error: " + e);
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	635 digilibError(errorMsgHtml, ERROR_AUTH,
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	636 "ERROR: Authorization error: " + e, response);
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	637 } catch (ImageOpException e) {
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	638 logger.error("ERROR: Image Error: " + e);
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	639 digilibError(errorMsgHtml, ERROR_IMAGE,
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	640 "ERROR: Image Operation Error: " + e, response);
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	641 } catch (RuntimeException e) {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	642 // JAI likes to throw RuntimeExceptions ;-(
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	643 logger.error("ERROR: Other Image Error: " + e);
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	644 digilibError(errorMsgHtml, ERROR_IMAGE,
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	645 "ERROR: Other Image Operation Error: " + e, response);
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	646 }
3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	647 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	648
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	649 /**
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	650 * Returns the DocuDirent corresponding to the DigilibRequest.
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	651 *
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	652 * @param dlRequest
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	653 * @return
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	654 */
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	655 public DocuDirent findFile(DigilibRequest dlRequest) {
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	656 // find the file(set)
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	657 DocuDirent f = dirCache.getFile(dlRequest.getFilePath(), dlRequest
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	658 .getAsInt("pn"), FileOps.CLASS_IMAGE);
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	659 return f;
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	660 }
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	661
9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	662 /**
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	663 * Sends an error to the client as text or image.
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	664 *
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	665 * @param asHTML
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	666 * @param type
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	667 * @param msg
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	668 * @param response
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	669 */
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	670 public void digilibError(boolean asHTML, int type, String msg,
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	671 HttpServletResponse response) {
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	672 try {
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	673 File img = null;
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	674 if (type == ERROR_AUTH) {
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	675 if (msg == null) {
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	676 msg = "ERROR: Unauthorized access!";
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	677 }
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	678 img = denyImgFile;
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	679 } else {
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	680 if (msg == null) {
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	681 msg = "ERROR: Other image error!";
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	682 }
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	683 img = this.errorImgFile;
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	684 }
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	685 if (asHTML && (img != null)) {
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	686 ServletOps.htmlMessage(msg, response);
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	687 } else {
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	688 ServletOps.sendFile(img, null, response);
335 9bce7008a514 Servlet version 1.5.3b robcast parents: 303 diff changeset	689 }
298 1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	690 } catch (IOException e) {
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	691 logger.error("Error sending error!", e);
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	692 }
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	693
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	694 }
1ecaf9c1fd8a Servlet version 1.5.0b -- the beginning of the next generation :-) robcast parents: 288 diff changeset	695
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 67 diff changeset	696 } //Scaler class

Mercurial > hg > digilib-old

annotate servlet/src/digilib/servlet/Scaler.java @ 335:9bce7008a514