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comparison servlet/src/digilib/io/ImageFileset.java @ 284:c633e97cac12

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Servlet version 1.22b1 - more fast searching (hopefully all working now) - some simple synchronisation - some reshuffling of methods to eliminate cruft
author robcast
date Fri, 15 Oct 2004 16:59:47 +0200
parents beed92ee6022
children 90bab835fc25
comparison
equal deleted inserted replaced
283:b09009d7fcfc 284:c633e97cac12
23 import java.util.Arrays; 23 import java.util.Arrays;
24 import java.util.Iterator; 24 import java.util.Iterator;
25 import java.util.ListIterator; 25 import java.util.ListIterator;
26 import java.util.Map; 26 import java.util.Map;
27 27
28 import digilib.image.DocuInfo; 28 import org.apache.log4j.Logger;
29
30 import digilib.image.ImageOps;
29 import digilib.image.ImageSize; 31 import digilib.image.ImageSize;
30 32
31 /** 33 /**
32 * @author casties 34 * @author casties
33 */ 35 */
34 public class ImageFileset extends DocuDirent { 36 public class ImageFileset extends DocuDirent {
35 37
36 /** this is an image file */ 38 /** this is an image file */
37 protected static int fileClass = FileOps.CLASS_IMAGE; 39 protected static int fileClass = FileOps.CLASS_IMAGE;
40
41 /** logger for this class */
42 private static Logger logger = Logger.getLogger(ImageFileset.class);
38 43
39 /** list of files (ImageFile) */ 44 /** list of files (ImageFile) */
40 private ArrayList list = null; 45 private ArrayList list = null;
41 46
42 /** aspect ratio (width/height) */ 47 /** aspect ratio (width/height) */
69 public ImageFileset(File file, Map hints) { 74 public ImageFileset(File file, Map hints) {
70 Directory[] dirs = (Directory[]) hints.get(FileOps.HINT_BASEDIRS); 75 Directory[] dirs = (Directory[]) hints.get(FileOps.HINT_BASEDIRS);
71 int nb = dirs.length; 76 int nb = dirs.length;
72 list = new ArrayList(nb); 77 list = new ArrayList(nb);
73 parent = dirs[0]; 78 parent = dirs[0];
74 fill(dirs, file, hints); 79 fill(dirs, file, hints);
75 } 80 }
76 81
77
78 /** 82 /**
79 * Adds an ImageFile to this Fileset. 83 * Adds an ImageFile to this Fileset.
80 * 84 *
81 * The files should be added in the order of higher to lower resolutions. 85 * The files should be added in the order of higher to lower resolutions.
82 * The first file is considered the hires "original". 86 * The first file is considered the hires "original".
130 * 134 *
131 * @param size 135 * @param size
132 * @param info 136 * @param info
133 * @return 137 * @return
134 */ 138 */
135 public ImageFile getNextSmaller(ImageSize size, DocuInfo info) { 139 public ImageFile getNextSmaller(ImageSize size) {
136 for (Iterator i = getHiresIterator(); i.hasNext();) { 140 for (Iterator i = getHiresIterator(); i.hasNext();) {
137 ImageFile f = (ImageFile) i.next(); 141 ImageFile f = (ImageFile) i.next();
138 try { 142 try {
139 if (!f.isChecked()) { 143 if (!f.isChecked()) {
140 info.checkFile(f); 144 ImageOps.checkFile(f);
141 } 145 }
142 if (f.getSize().isTotallySmallerThan(size)) { 146 if (f.getSize().isTotallySmallerThan(size)) {
143 return f; 147 return f;
144 } 148 }
145 } catch (IOException e) { 149 } catch (IOException e) {
158 * 162 *
159 * @param size 163 * @param size
160 * @param info 164 * @param info
161 * @return 165 * @return
162 */ 166 */
163 public ImageFile getNextBigger(ImageSize size, DocuInfo info) { 167 public ImageFile getNextBigger(ImageSize size) {
164 for (ListIterator i = getLoresIterator(); i.hasPrevious();) { 168 for (ListIterator i = getLoresIterator(); i.hasPrevious();) {
165 ImageFile f = (ImageFile) i.previous(); 169 ImageFile f = (ImageFile) i.previous();
166 try { 170 try {
167 if (!f.isChecked()) { 171 if (!f.isChecked()) {
168 info.checkFile(f); 172 ImageOps.checkFile(f);
169 } 173 }
170 if (f.getSize().isBiggerThan(size)) { 174 if (f.getSize().isBiggerThan(size)) {
171 return f; 175 return f;
172 } 176 }
173 } catch (IOException e) { 177 } catch (IOException e) {
228 * @param dirs 232 * @param dirs
229 * list of base directories 233 * list of base directories
230 * @param fl 234 * @param fl
231 * file (from first base dir) 235 * file (from first base dir)
232 * @param hints 236 * @param hints
233 * 237 *
234 */ 238 */
235 void fill(Directory[] dirs, File fl, Map hints) { 239 void fill(Directory[] dirs, File fl, Map hints) {
236 String scalext = (String) hints.get(FileOps.HINT_FILEEXT); 240 String scalext = (String) hints.get(FileOps.HINT_FILEEXT);
237 int nb = dirs.length; 241 int nb = dirs.length;
238 String fn = fl.getName(); 242 String fn = fl.getName();
239 String baseFn = FileOps.basename(fn); 243 String baseFn = FileOps.basename(fn);
240 // add the first ImageFile to the ImageFileset 244 // add the first ImageFile to the ImageFileset
241 add(new ImageFile(fn, this, parent)); 245 add(new ImageFile(fn, this, parent));
242 // iterate the remaining base directories 246 // iterate the remaining base directories
243 for (int j = 1; j < nb; j++) { 247 for (int dirIdx = 1; dirIdx < nb; dirIdx++) {
244 if (dirs[j] == null) { 248 if (dirs[dirIdx] == null) {
245 continue; 249 continue;
246 } 250 }
247 // read the directories 251 // read the directory
248 if (dirs[j].getFilenames() == null) { 252 if (dirs[dirIdx].getFilenames() == null) {
249 dirs[j].readDir(); 253 dirs[dirIdx].readDir();
250 } 254 }
251 File f = null; 255 String[] dirFiles = dirs[dirIdx].getFilenames();
252 String[] dirFiles = dirs[j].getFilenames(); 256 // try the same filename as the original
253 if (scalext != null) { 257 int fileIdx = Arrays.binarySearch(dirFiles, fn);
254 // use the last extension 258 if (fileIdx < 0) {
255 int i = Arrays.binarySearch(dirFiles, baseFn + scalext); 259 // try closest matches without extension
256 if (i >= 0) { 260 fileIdx = -fileIdx - 1;
257 f = new File(dirs[j].getDir(), dirFiles[i]); 261 // try idx
258 } 262 if ((fileIdx < dirFiles.length)
259 } else { 263 && (FileOps.basename(dirFiles[fileIdx]).equals(baseFn))) {
260 // try the same filename as the original 264 // idx ok
261 int i = Arrays.binarySearch(dirFiles, fn); 265 } else if ((fileIdx > 0)
262 if (i >= 0) { 266 && (FileOps.basename(dirFiles[fileIdx - 1])
263 f = new File(dirs[j].getDir(), dirFiles[i]); 267 .equals(baseFn))) {
264 } 268 // idx-1 ok
265 } 269 fileIdx = fileIdx - 1;
266 // if the file doesn't exists, try other file extensions 270 } else if ((fileIdx+1 < dirFiles.length)
267 if (f == null) { 271 && (FileOps.basename(dirFiles[fileIdx + 1])
268 // try other file extensions 272 .equals(baseFn))) {
269 for (Iterator exts = FileOps.getImageExtensionIterator(); exts.hasNext();) { 273 // idx+1 ok
270 String s = (String) exts.next(); 274 fileIdx = fileIdx + 1;
271 int i = Arrays.binarySearch(dirFiles, baseFn + s); 275 } else {
272 if (i >= 0) { 276 // basename doesn't match
273 hints.put(FileOps.HINT_FILEEXT, s); 277 continue;
274 f = new File(dirs[j].getDir(), dirFiles[i]); 278 }
275 break; 279 }
276 } 280 if (FileOps.classForFilename(dirFiles[fileIdx]) == FileOps.CLASS_IMAGE) {
277 } 281 logger.debug("adding file " + dirFiles[fileIdx]
278 } 282 + " to Fileset " + this.getName());
279 if (f != null) { 283 add(new ImageFile(dirFiles[fileIdx], this, dirs[dirIdx]));
280 add(new ImageFile(f.getName(), this, dirs[j]));
281 } 284 }
282 } 285 }
283 } 286 }
284 287
285 /** 288 /**