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comparison servlet/src/digilib/io/DocuDirent.java @ 159:e743b853efca

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servlet version 1.16a4 - rather experimental - new Texter servlet for sending text - reads and caches text files in DocuDirCache - DocuFile renamed to ImageFile (-Set) - new TextFile
author robcast
date Tue, 16 Sep 2003 18:32:00 +0200
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children 67ff8c7fecb9
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158:e9a81ac446cb 159:e743b853efca
1 /* DocuDirent.java -- Abstract directory entry in a DocuDirectory
2
3 Digital Image Library servlet components
4
5 Copyright (C) 2003 Robert Casties (robcast@mail.berlios.de)
6
7 This program is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the
9 Free Software Foundation; either version 2 of the License, or (at your
10 option) any later version.
11
12 Please read license.txt for the full details. A copy of the GPL
13 may be found at http://www.gnu.org/copyleft/lgpl.html
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
19 * Created on 15.09.2003 by casties
20 *
21 */
22 package digilib.io;
23
24 import java.io.File;
25 import java.util.HashMap;
26
27 /** Abstract directory entry in a DocuDirectory.
28 *
29 * @author casties
30 *
31 */
32 public abstract class DocuDirent {
33
34 /** the file class of this file */
35 protected static int fileClass = FileOps.CLASS_NONE;
36 /** HashMap with metadata */
37 protected HashMap fileMeta = null;
38 /** Is the Metadata valid */
39 protected boolean metaChecked = false;
40 /** the parent directory */
41 protected Directory parent = null;
42
43 /** Checks metadata and does something with it.
44 *
45 */
46 public abstract void checkMeta();
47
48 /**
49 * gets the (default) File
50 * @return
51 */
52 public abstract File getFile();
53
54 /** Reads meta-data for this Fileset if there is any.
55 *
56 */
57 public void readMeta() {
58 if ((fileMeta != null) || (getFile() != null)) {
59 // there is already metadata or there is no file
60 return;
61 }
62 // metadata is in the file {filename}.meta
63 String fn = getFile().getAbsolutePath();
64 File mf = new File(fn + ".meta");
65 if (mf.canRead()) {
66 XMLMetaLoader ml = new XMLMetaLoader();
67 try {
68 // read meta file
69 HashMap meta = ml.loadURL(mf.getAbsolutePath());
70 if (meta == null) {
71 return;
72 }
73 fileMeta = (HashMap) meta.get(getName());
74 } catch (Exception e) {
75 // TODO Auto-generated catch block
76 e.printStackTrace();
77 }
78 }
79 }
80
81 /** The name of the (hires) image file.
82 *
83 * @return
84 */
85 public String getName() {
86 File f = getFile();
87 return (f != null) ? f.getName() : null;
88 }
89
90 /** Returns the parent DocuDirectory.
91 *
92 * @return DocuDirectory
93 */
94 public Directory getParent() {
95 return parent;
96 }
97
98 /**
99 * Sets the parent.
100 * @param parent The parent to set
101 */
102 public void setParent(Directory parent) {
103 this.parent = parent;
104 }
105
106 /** Returns the meta-data for this fileset.
107 *
108 * @return HashMap
109 */
110 public HashMap getFileMeta() {
111 return fileMeta;
112 }
113
114 /**
115 * Sets the fileMeta.
116 * @param fileMeta The fileMeta to set
117 */
118 public void setFileMeta(HashMap fileMeta) {
119 this.fileMeta = fileMeta;
120 }
121
122 /**
123 * @return
124 */
125 public boolean isMetaChecked() {
126 return metaChecked;
127 }
128
129 /**
130 * @return
131 */
132 public static int getFileClass() {
133 return fileClass;
134 }
135
136 }