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comparison servlet/src/main/java/digilib/io/DocuDirentImpl.java @ 892:ba1eb2d821a2 mvnify

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rearrange sources to maven directory standard
author robcast
date Tue, 19 Apr 2011 18:44:25 +0200
parents servlet/src/digilib/io/DocuDirentImpl.java@69bc69381ac4
children
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891:6584af320296 892:ba1eb2d821a2
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 import digilib.meta.MetadataMap;
32 import digilib.meta.XMLMetaLoader;
33
34 /**
35 * Abstract directory entry in a DocuDirectory.
36 *
37 * @author casties
38 *
39 */
40 public abstract class DocuDirentImpl implements DocuDirent {
41
42 /** the file class of this file */
43 protected static FileClass fileClass = FileClass.NONE;
44 /** HashMap with metadata */
45 protected MetadataMap fileMeta = null;
46 /** Is the Metadata valid */
47 protected boolean metaChecked = false;
48 /** the parent directory */
49 protected Directory parent = null;
50
51 /* (non-Javadoc)
52 * @see digilib.io.DocuDirent#checkMeta()
53 */
54 public abstract void checkMeta();
55
56 /* (non-Javadoc)
57 * @see digilib.io.DocuDirent#getInput()
58 */
59 public abstract File getFile();
60
61 /* (non-Javadoc)
62 * @see digilib.io.DocuDirent#readMeta()
63 */
64 public void readMeta() {
65 if ((fileMeta != null) || (getFile() == null)) {
66 // there is already metadata or there is no file
67 return;
68 }
69 // metadata is in the file {filename}.meta
70 String fn = getFile().getAbsolutePath();
71 File mf = new File(fn + ".meta");
72 if (mf.canRead()) {
73 XMLMetaLoader ml = new XMLMetaLoader();
74 try {
75 // read meta file
76 Map<String, MetadataMap> meta = ml.loadURL(mf.getAbsolutePath());
77 if (meta == null) {
78 return;
79 }
80 fileMeta = meta.get(getName());
81 } catch (Exception e) {
82 Logger.getLogger(this.getClass()).warn("error reading file .meta", e);
83 }
84 }
85 }
86
87 /* (non-Javadoc)
88 * @see digilib.io.DocuDirent#getName()
89 */
90 public String getName() {
91 File f = getFile();
92 return (f != null) ? f.getName() : null;
93 }
94
95 /* (non-Javadoc)
96 * @see digilib.io.DocuDirent#getParent()
97 */
98 public Directory getParent() {
99 return parent;
100 }
101
102 /* (non-Javadoc)
103 * @see digilib.io.DocuDirent#setParent(digilib.io.Directory)
104 */
105 public void setParent(Directory parent) {
106 this.parent = parent;
107 }
108
109 /* (non-Javadoc)
110 * @see digilib.io.DocuDirent#getFileMeta()
111 */
112 public MetadataMap getFileMeta() {
113 return fileMeta;
114 }
115
116 /* (non-Javadoc)
117 * @see digilib.io.DocuDirent#setFileMeta(digilib.io.MetadataMap)
118 */
119 public void setFileMeta(MetadataMap fileMeta) {
120 this.fileMeta = fileMeta;
121 }
122
123 /* (non-Javadoc)
124 * @see digilib.io.DocuDirent#isMetaChecked()
125 */
126 public boolean isMetaChecked() {
127 return metaChecked;
128 }
129
130 /**
131 * @return
132 */
133 public static FileClass getFileClass() {
134 return fileClass;
135 }
136
137 /* (non-Javadoc)
138 * @see digilib.io.DocuDirent#compareTo(java.lang.Object)
139 */
140 public int compareTo(Object arg0) {
141 if (arg0 instanceof DocuDirentImpl) {
142 return getName().compareTo(((DocuDirent) arg0).getName());
143 } else {
144 return getName().compareTo((String) arg0);
145 }
146 }
147
148
149 }