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comparison servlet/src/digilib/io/DocuDirentImpl.java @ 576:dad720e9b12b stream

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try: DocuDirent as interface, ImageFile inherits from ImageInput and implements DocuDirent
author robcast
date Wed, 22 Dec 2010 20:19:06 +0100
parents servlet/src/digilib/io/DocuDirent.java@790cbfb58b52
children c7034d166a24
comparison
equal deleted inserted replaced
574:790cbfb58b52 576:dad720e9b12b
1 /*
2 * DocuDirent.java -- Abstract directory entry in a DocuDirectory
3 *
4 * Digital Image Library servlet components
5 *
6 * Copyright (C) 2003 Robert Casties (robcast@mail.berlios.de)
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the Free
10 * Software Foundation; either version 2 of the License, or (at your option)
11 * any later version.
12 *
13 * Please read license.txt for the full details. A copy of the GPL may be found
14 * at http://www.gnu.org/copyleft/lgpl.html
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
18 * Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 * Created on 15.09.2003 by casties
21 *
22 */
23 package digilib.io;
24
25 import java.io.File;
26 import java.util.Map;
27
28 import org.apache.log4j.Logger;
29
30 import digilib.io.FileOps.FileClass;
31
32 /**
33 * Abstract directory entry in a DocuDirectory.
34 *
35 * @author casties
36 *
37 */
38 public abstract class DocuDirentImpl implements DocuDirent {
39
40 /** the file class of this file */
41 protected static FileClass fileClass = FileClass.NONE;
42 /** HashMap with metadata */
43 protected MetadataMap fileMeta = null;
44 /** Is the Metadata valid */
45 protected boolean metaChecked = false;
46 /** the parent directory */
47 protected Directory parent = null;
48
49 /* (non-Javadoc)
50 * @see digilib.io.DocuDirent#checkMeta()
51 */
52 public abstract void checkMeta();
53
54 /* (non-Javadoc)
55 * @see digilib.io.DocuDirent#getInput()
56 */
57 public abstract File getInput();
58
59 /* (non-Javadoc)
60 * @see digilib.io.DocuDirent#readMeta()
61 */
62 public void readMeta() {
63 if ((fileMeta != null) || (getInput() == null)) {
64 // there is already metadata or there is no file
65 return;
66 }
67 // metadata is in the file {filename}.meta
68 String fn = getInput().getAbsolutePath();
69 File mf = new File(fn + ".meta");
70 if (mf.canRead()) {
71 XMLMetaLoader ml = new XMLMetaLoader();
72 try {
73 // read meta file
74 Map<String, MetadataMap> meta = ml.loadURL(mf.getAbsolutePath());
75 if (meta == null) {
76 return;
77 }
78 fileMeta = meta.get(getName());
79 } catch (Exception e) {
80 Logger.getLogger(this.getClass()).warn("error reading file .meta", e);
81 }
82 }
83 }
84
85 /* (non-Javadoc)
86 * @see digilib.io.DocuDirent#getName()
87 */
88 public String getName() {
89 File f = getInput();
90 return (f != null) ? f.getName() : null;
91 }
92
93 /* (non-Javadoc)
94 * @see digilib.io.DocuDirent#getParent()
95 */
96 public Directory getParent() {
97 return parent;
98 }
99
100 /* (non-Javadoc)
101 * @see digilib.io.DocuDirent#setParent(digilib.io.Directory)
102 */
103 public void setParent(Directory parent) {
104 this.parent = parent;
105 }
106
107 /* (non-Javadoc)
108 * @see digilib.io.DocuDirent#getFileMeta()
109 */
110 public MetadataMap getFileMeta() {
111 return fileMeta;
112 }
113
114 /* (non-Javadoc)
115 * @see digilib.io.DocuDirent#setFileMeta(digilib.io.MetadataMap)
116 */
117 public void setFileMeta(MetadataMap fileMeta) {
118 this.fileMeta = fileMeta;
119 }
120
121 /* (non-Javadoc)
122 * @see digilib.io.DocuDirent#isMetaChecked()
123 */
124 public boolean isMetaChecked() {
125 return metaChecked;
126 }
127
128 /**
129 * @return
130 */
131 public static FileClass getFileClass() {
132 return fileClass;
133 }
134
135 /* (non-Javadoc)
136 * @see digilib.io.DocuDirent#compareTo(java.lang.Object)
137 */
138 public int compareTo(Object arg0) {
139 if (arg0 instanceof DocuDirentImpl) {
140 return getName().compareTo(((DocuDirent) arg0).getName());
141 } else {
142 return getName().compareTo((String) arg0);
143 }
144 }
145
146
147 }