Mercurial > hg > digilib-old
annotate servlet/src/digilib/io/DocuDirent.java @ 475:1fc30116efc3
modified DocuDirent.compareTo instead of ImageFileset.compareTo
| author | hertzhaft |
|---|---|
| date | Wed, 12 Apr 2006 14:12:37 +0200 |
| parents | 2188086cd143 |
| children | e758a49258e8 |
| 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 | |
| 30 /** | |
| 31 * Abstract directory entry in a DocuDirectory. | |
| 159 | 32 * |
| 33 * @author casties | |
| 181 | 34 * |
| 159 | 35 */ |
| 271 | 36 public abstract class DocuDirent implements Comparable { |
| 159 | 37 |
| 38 /** the file class of this file */ | |
| 181 | 39 protected static int fileClass = FileOps.CLASS_NONE; |
| 159 | 40 /** HashMap with metadata */ |
| 271 | 41 protected Map fileMeta = null; |
| 159 | 42 /** Is the Metadata valid */ |
| 43 protected boolean metaChecked = false; | |
| 44 /** the parent directory */ | |
| 45 protected Directory parent = null; | |
| 46 | |
| 181 | 47 /** |
| 48 * Checks metadata and does something with it. | |
| 49 * | |
| 159 | 50 */ |
| 51 public abstract void checkMeta(); | |
| 52 | |
| 53 /** | |
| 54 * gets the (default) File | |
| 181 | 55 * |
| 159 | 56 * @return |
| 57 */ | |
| 58 public abstract File getFile(); | |
| 59 | |
| 181 | 60 /** |
| 61 * Reads meta-data for this Fileset if there is any. | |
| 62 * | |
| 159 | 63 */ |
| 64 public void readMeta() { | |
| 195 | 65 if ((fileMeta != null) || (getFile() == null)) { |
| 159 | 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 | |
| 271 | 76 Map meta = ml.loadURL(mf.getAbsolutePath()); |
| 159 | 77 if (meta == null) { |
| 78 return; | |
| 79 } | |
| 271 | 80 fileMeta = (Map) meta.get(getName()); |
| 159 | 81 } catch (Exception e) { |
| 195 | 82 Logger.getLogger(this.getClass()).warn("error reading file .meta", e); |
| 159 | 83 } |
| 84 } | |
| 85 } | |
| 86 | |
| 181 | 87 /** |
| 88 * The name of the file. | |
| 176 | 89 * |
| 181 | 90 * If this is a Fileset, the method returns the name of the default file |
| 176 | 91 * (for image filesets the highest resolution file). |
| 159 | 92 * |
| 93 * @return | |
| 94 */ | |
| 95 public String getName() { | |
| 96 File f = getFile(); | |
| 97 return (f != null) ? f.getName() : null; | |
| 259 | 98 } |
| 99 | |
| 100 /** | |
| 101 * Returns the parent Directory. | |
| 102 * | |
| 103 * @return DocuDirectory | |
| 104 */ | |
| 159 | 105 public Directory getParent() { |
| 106 return parent; | |
| 259 | 107 } |
| 108 | |
| 109 /** | |
| 110 * Sets the parent Directory. | |
| 111 * | |
| 112 * @param parent | |
| 113 * The parent to set | |
| 114 */ | |
| 159 | 115 public void setParent(Directory parent) { |
| 116 this.parent = parent; | |
| 259 | 117 } |
| 118 | |
| 119 /** | |
| 120 * Returns the meta-data for this file(set). | |
| 121 * | |
| 122 * @return HashMap | |
| 123 */ | |
| 271 | 124 public Map getFileMeta() { |
| 159 | 125 return fileMeta; |
| 259 | 126 } |
| 127 | |
| 128 /** | |
| 129 * Sets the meta-data for this file(set) . | |
| 130 * | |
| 131 * @param fileMeta | |
| 132 * The fileMeta to set | |
| 133 */ | |
| 271 | 134 public void setFileMeta(Map fileMeta) { |
| 159 | 135 this.fileMeta = fileMeta; |
| 259 | 136 } |
| 137 | |
| 138 /** | |
| 139 * @return | |
| 140 */ | |
| 159 | 141 public boolean isMetaChecked() { |
| 142 return metaChecked; | |
| 259 | 143 } |
| 144 | |
| 145 /** | |
| 146 * @return | |
| 147 */ | |
| 159 | 148 public static int getFileClass() { |
| 149 return fileClass; | |
| 150 } | |
| 151 | |
| 271 | 152 /** Comparator using the file name. |
|
475
1fc30116efc3
modified DocuDirent.compareTo instead of ImageFileset.compareTo
hertzhaft
parents:
371
diff
changeset
|
153 * Compares to a String (for binarySearch) |
|
1fc30116efc3
modified DocuDirent.compareTo instead of ImageFileset.compareTo
hertzhaft
parents:
371
diff
changeset
|
154 * or to another DocuDirent (for sort) |
| 271 | 155 * |
| 156 * @see java.lang.Comparable#compareTo(java.lang.Object) | |
| 157 */ | |
| 158 public int compareTo(Object arg0) { | |
|
475
1fc30116efc3
modified DocuDirent.compareTo instead of ImageFileset.compareTo
hertzhaft
parents:
371
diff
changeset
|
159 return (arg0 instanceof DocuDirent) |
|
1fc30116efc3
modified DocuDirent.compareTo instead of ImageFileset.compareTo
hertzhaft
parents:
371
diff
changeset
|
160 ? getName().compareTo(((DocuDirent) arg0).getName()) |
|
1fc30116efc3
modified DocuDirent.compareTo instead of ImageFileset.compareTo
hertzhaft
parents:
371
diff
changeset
|
161 : getName().compareTo((String) arg0); |
| 271 | 162 } |
|
475
1fc30116efc3
modified DocuDirent.compareTo instead of ImageFileset.compareTo
hertzhaft
parents:
371
diff
changeset
|
163 |
| 271 | 164 |
| 159 | 165 } |