Mercurial > hg > digilib-old
annotate servlet/src/digilib/io/DocuDirentImpl.java @ 576:dad720e9b12b stream
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 |
| rev | line source |
|---|---|
| 181 | 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 * | |
| 159 | 20 * Created on 15.09.2003 by casties |
| 181 | 21 * |
| 159 | 22 */ |
| 23 package digilib.io; | |
| 24 | |
| 25 import java.io.File; | |
| 271 | 26 import java.util.Map; |
| 159 | 27 |
| 181 | 28 import org.apache.log4j.Logger; |
| 29 | |
| 563 | 30 import digilib.io.FileOps.FileClass; |
| 31 | |
| 181 | 32 /** |
| 33 * Abstract directory entry in a DocuDirectory. | |
| 159 | 34 * |
| 35 * @author casties | |
| 181 | 36 * |
| 159 | 37 */ |
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38 public abstract class DocuDirentImpl implements DocuDirent { |
| 159 | 39 |
| 40 /** the file class of this file */ | |
| 563 | 41 protected static FileClass fileClass = FileClass.NONE; |
| 159 | 42 /** HashMap with metadata */ |
| 531 | 43 protected MetadataMap fileMeta = null; |
| 159 | 44 /** Is the Metadata valid */ |
| 45 protected boolean metaChecked = false; | |
| 46 /** the parent directory */ | |
| 47 protected Directory parent = null; | |
| 48 | |
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49 /* (non-Javadoc) |
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50 * @see digilib.io.DocuDirent#checkMeta() |
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51 */ |
| 159 | 52 public abstract void checkMeta(); |
| 53 | |
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54 /* (non-Javadoc) |
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55 * @see digilib.io.DocuDirent#getInput() |
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56 */ |
| 574 | 57 public abstract File getInput(); |
| 159 | 58 |
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59 /* (non-Javadoc) |
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60 * @see digilib.io.DocuDirent#readMeta() |
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61 */ |
| 159 | 62 public void readMeta() { |
| 574 | 63 if ((fileMeta != null) || (getInput() == null)) { |
| 159 | 64 // there is already metadata or there is no file |
| 65 return; | |
| 66 } | |
| 67 // metadata is in the file {filename}.meta | |
| 574 | 68 String fn = getInput().getAbsolutePath(); |
| 159 | 69 File mf = new File(fn + ".meta"); |
| 70 if (mf.canRead()) { | |
| 71 XMLMetaLoader ml = new XMLMetaLoader(); | |
| 72 try { | |
| 73 // read meta file | |
| 531 | 74 Map<String, MetadataMap> meta = ml.loadURL(mf.getAbsolutePath()); |
| 159 | 75 if (meta == null) { |
| 76 return; | |
| 77 } | |
| 531 | 78 fileMeta = meta.get(getName()); |
| 159 | 79 } catch (Exception e) { |
| 195 | 80 Logger.getLogger(this.getClass()).warn("error reading file .meta", e); |
| 159 | 81 } |
| 82 } | |
| 83 } | |
| 84 | |
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85 /* (non-Javadoc) |
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86 * @see digilib.io.DocuDirent#getName() |
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87 */ |
| 159 | 88 public String getName() { |
| 574 | 89 File f = getInput(); |
| 159 | 90 return (f != null) ? f.getName() : null; |
| 259 | 91 } |
| 92 | |
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93 /* (non-Javadoc) |
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94 * @see digilib.io.DocuDirent#getParent() |
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95 */ |
| 159 | 96 public Directory getParent() { |
| 97 return parent; | |
| 259 | 98 } |
| 99 | |
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100 /* (non-Javadoc) |
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101 * @see digilib.io.DocuDirent#setParent(digilib.io.Directory) |
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102 */ |
| 159 | 103 public void setParent(Directory parent) { |
| 104 this.parent = parent; | |
| 259 | 105 } |
| 106 | |
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107 /* (non-Javadoc) |
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108 * @see digilib.io.DocuDirent#getFileMeta() |
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109 */ |
| 531 | 110 public MetadataMap getFileMeta() { |
| 159 | 111 return fileMeta; |
| 259 | 112 } |
| 113 | |
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114 /* (non-Javadoc) |
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115 * @see digilib.io.DocuDirent#setFileMeta(digilib.io.MetadataMap) |
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116 */ |
| 531 | 117 public void setFileMeta(MetadataMap fileMeta) { |
| 159 | 118 this.fileMeta = fileMeta; |
| 259 | 119 } |
| 120 | |
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121 /* (non-Javadoc) |
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122 * @see digilib.io.DocuDirent#isMetaChecked() |
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123 */ |
| 159 | 124 public boolean isMetaChecked() { |
| 125 return metaChecked; | |
| 259 | 126 } |
| 127 | |
| 128 /** | |
| 129 * @return | |
| 130 */ | |
| 563 | 131 public static FileClass getFileClass() { |
| 159 | 132 return fileClass; |
| 133 } | |
| 134 | |
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135 /* (non-Javadoc) |
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136 * @see digilib.io.DocuDirent#compareTo(java.lang.Object) |
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137 */ |
| 271 | 138 public int compareTo(Object arg0) { |
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139 if (arg0 instanceof DocuDirentImpl) { |
| 531 | 140 return getName().compareTo(((DocuDirent) arg0).getName()); |
| 141 } else { | |
| 142 return getName().compareTo((String) arg0); | |
| 143 } | |
| 271 | 144 } |
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145 |
| 271 | 146 |
| 159 | 147 } |