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1
32
33 package com.knowgate.hipergate;
34
35 import java.io.File  ;
36 import java.io.IOException ;
37 import java.io.FileNotFoundException ;
38 import java.io.FileInputStream ;
39 import java.io.FileOutputStream ;
40 import java.io.InputStream ;
41 import java.io.OutputStream ;
42 import java.io.ByteArrayOutputStream ;
43
44 import java.sql.SQLException ;
45 import java.sql.Connection ;
46 import java.sql.Statement ;
47 import java.sql.PreparedStatement ;
48 import java.sql.ResultSet ;
49
50 import java.net.URL ;
51
52 import java.awt.MediaTracker ;
53 import java.awt.RenderingHints ;
54 import java.awt.Toolkit ;
55 import java.awt.Frame ;
56 import java.awt.Graphics2D ;
57 import java.awt.image.BufferedImage ;
58 import java.awt.image.RenderedImage ;
59 import java.awt.image.ColorModel ;
60 import java.awt.image.ComponentColorModel ;
61 import java.awt.image.DataBuffer ;
62 import java.awt.image.renderable.ParameterBlock ;
63 import java.awt.color.ColorSpace ;
64 import java.awt.Transparency ;
65
66 import com.knowgate.debug.*;
67 import com.knowgate.jdc.JDCConnection;
68 import com.knowgate.misc.Base64Decoder;
69 import com.knowgate.misc.Gadgets;
70 import com.knowgate.dataobjs.DB;
71 import com.knowgate.dataobjs.DBBind;
72 import com.knowgate.dataobjs.DBPersist;
73
74
80
81 public class Image extends DBPersist {
82
83 private int iImagingLibrary;
84
85 private int iDimX;
86 private int iDimY;
87
88 private MediaTracker mediaTracker;
89
90 private java.awt.Image oImg;
91
92
95 public Image() {
96 super(DB.k_images, "Image");
97 iImagingLibrary = USE_AWT;
98 mediaTracker = null;
99 }
100
101
106 public Image(int iLibraryCode) throws IllegalArgumentException {
107 super(DB.k_images, "Image");
108 setImagingLibrary(iLibraryCode);
109 mediaTracker = null;
110 }
111
112
118 public Image(JDCConnection oConn, String sImageId) throws SQLException {
119 super(DB.k_images, "Image");
120
121 iImagingLibrary = USE_AWT;
122 mediaTracker = null;
123
124 load(oConn, new Object []{sImageId});
125 }
126
127
133 public Image(java.awt.Image oAWTImage, String sImagePath, int iLibrary) {
134 super(DB.k_images, "Image");
135
136 iImagingLibrary = iLibrary;
137 mediaTracker = null;
138
139 oImg = oAWTImage;
140
141 if (null!=sImagePath)
142 put(DB.path_image, sImagePath);
143 }
144
145
153 public Image(JDCConnection oConn, File oFile, String sFilePath) throws SQLException {
154 super(DB.k_images, "Image");
155
156 String sImageId;
157 PreparedStatement oStmt;
158 ResultSet oRSet;
159
160 iImagingLibrary = USE_AWT;
161 mediaTracker = null;
162
163 if (DebugFile.trace) DebugFile.writeln("new Image([Conenction]," + oFile.getAbsolutePath() + "," + sFilePath);
164
165 if (DebugFile.trace) DebugFile.writeln("Connection.prepareStatement(SELECT " + DB.gu_image + " FROM " + DB.k_images + " WHERE " + DB.path_image + "='" + sFilePath + "'");
166
167 oStmt = oConn.prepareStatement("SELECT " + DB.gu_image + " FROM " + DB.k_images + " WHERE " + DB.path_image + "=?", ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY);
168 oStmt.setString(1, sFilePath);
169 oRSet = oStmt.executeQuery();
170 if (oRSet.next())
171 sImageId = oRSet.getString(1);
172 else
173 sImageId = null;
174 oRSet.close();
175 oStmt.close();
176
177 if (null==sImageId) {
178 put(DB.gu_image, Gadgets.generateUUID());
179 }
180 else {
181 put(DB.gu_image, sImageId);
182 }
183
184 put(DB.path_image, sFilePath);
185 put(DB.len_file, new Long (oFile.length()).intValue());
186 }
187
188
190
198 public void setImagingLibrary (int iLibraryCode) {
199
200 if (DebugFile.trace) {
201 switch (iLibraryCode) {
202 case USE_AWT:
203 DebugFile.writeln("Image.setImagingLibrary(USE_AWT)");
204 break;
205 case USE_JAI:
206 DebugFile.writeln("Image.setImagingLibrary(USE_JAI)");
207 break;
208 default:
209 DebugFile.writeln("Image.setImagingLibrary(" + String.valueOf(iLibraryCode) + ")");
210 }
211 }
212
213 if (iLibraryCode!=USE_AWT && iLibraryCode!=USE_JAI)
214 throw new IllegalArgumentException ("Imaging library code must be Image.USE_AWT or Image.USE_JAI");
215
216 iImagingLibrary = iLibraryCode;
217 }
219
221
225 public int getImagingLibrary() {
226 return iImagingLibrary;
227 }
229
231
246 public boolean store(JDCConnection oConn)
247 throws SQLException , UnsatisfiedLinkError , NoClassDefFoundError {
248 File oFile;
249 java.sql.Timestamp dtNow;
250
251 if (DebugFile.trace) {
252 DebugFile.writeln("Begin Image.store([Connection])");
253 DebugFile.incIdent();
254 }
255
256 dtNow = new java.sql.Timestamp (DBBind.getTime());
257
258 if (!AllVals.containsKey(DB.gu_image))
259 put(DB.gu_image, Gadgets.generateUUID());
260 else
261 replace(DB.dt_modified, dtNow);
262
263 if (!AllVals.containsKey(DB.id_img_type))
264 put(DB.id_img_type, getImageType());
265
266 try {
267
268 if (!AllVals.containsKey(DB.len_file)) {
269 oFile = new File (getString(DB.path_image));
270 put(DB.len_file, new Long (oFile.length()).intValue());
271 }
273 if (!AllVals.containsKey(DB.dm_width) && ! AllVals.containsKey(DB.dm_height)) {
274 try {
275 if (dimensions()) {
276 put(DB.dm_width, iDimX);
277 put(DB.dm_height, iDimY);
278 } }
280 catch (NullPointerException e) {
281 if (DebugFile.trace) DebugFile.writeln("Image.dimensions() - NullPointerException ");
282 new ErrorHandler(e);
283 }
284 }
286 }
287 catch (FileNotFoundException fnf) {
288 if (DebugFile.trace) DebugFile.writeln("FileNotFoundException:" + fnf.getMessage());
289 }
290 catch(IOException ioe) {
291 if (DebugFile.trace) DebugFile.writeln("IOException:" + ioe.getMessage());
292 }
293
294 boolean bRetVal = super.store(oConn);
295
296 if (DebugFile.trace) {
297 DebugFile.decIdent();
298 DebugFile.writeln("End Image.store([Connection]) : " + String.valueOf(bRetVal));
299 }
300
301 return bRetVal;
302 }
304
306
311 public boolean delete(JDCConnection oConn) throws SQLException {
312 boolean bRetVal;
313 String sPath;
314 File oFile;
315 Statement oDlte;
316 PreparedStatement oStmt;
317 ResultSet oRSet;
318 int iCount;
319
320 if (DebugFile.trace) {
321 DebugFile.writeln("Begin Image.delete([Connection])");
322 DebugFile.incIdent();
323 if (DebugFile.trace) DebugFile.writeln("Connection.executeUpdate(DELETE FROM " + DB.k_x_cat_objs + " WHERE " + DB.gu_object + "='" + getStringNull(DB.gu_image, "null") + "' AND " + DB.id_class + "=" + String.valueOf(Image.ClassId) + ")");
324 }
325
326 oDlte = oConn.createStatement();
327 oDlte.executeUpdate("DELETE FROM " + DB.k_x_cat_objs + " WHERE " + DB.gu_object + "='" + getString(DB.gu_image) + "' AND " + DB.id_class + "=" + String.valueOf(Image.ClassId));
328 oDlte.close();
329
330 sPath = getString(DB.path_image);
331 if (sPath.startsWith("file://")) sPath = sPath.substring(7);
332
333 oFile = new File (sPath);
334
335 if (oFile.exists() && oFile.isFile()) {
336 oStmt = oConn.prepareStatement("SELECT COUNT(" + DB.gu_image + ") FROM " + DB.k_images + " WHERE " + DB.path_image + "=?", ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY);
337 oStmt.setString(1, getString(DB.path_image));
338 oRSet = oStmt.executeQuery();
339 oRSet.next();
340 iCount = oRSet.getInt(1);
341 oRSet.close();
342 oStmt.close();
343
344 if (1==iCount)
345 bRetVal = oFile.delete();
346 else
347 bRetVal = true;
348 }
349 else
350 bRetVal = true;
351
352 if (bRetVal)
353 bRetVal = super.delete(oConn);
354
355 if (DebugFile.trace) {
356 DebugFile.decIdent();
357 DebugFile.writeln("End Image.delete([Connection]) : " + String.valueOf(bRetVal));
358 }
359
360 return bRetVal;
361 }
363
364
368 public String getImageType() {
369 String sFilePath;;
370 String sRetVal;
371
372 if (DebugFile.trace) {
373 DebugFile.writeln("Begin Image.getImageType()");
374 DebugFile.incIdent();
375 }
376
377 sFilePath = getStringNull(DB.path_image,null);
378
379 if (sFilePath==null) return null;
380
381 int iDot = sFilePath.lastIndexOf(".");
382 if (iDot>0)
383 sRetVal = sFilePath.substring(++iDot).toLowerCase();
384 else
385 sRetVal = null;
386
387 if (DebugFile.trace) {
388 DebugFile.decIdent();
389 DebugFile.writeln("End Image.getImageType([Connection]) : " + (sRetVal!=null ? sRetVal : "null"));
390 }
391 return sRetVal;
392 }
394
396 public String getImageCodec() {
397 String sCodec;
398 String sType = getImageType();
399
400 if (sType.equalsIgnoreCase("jpg"))
401 sCodec = "jpeg";
402 else if (sType.equalsIgnoreCase("tif"))
403 sCodec = "tiff";
404 else
405 sCodec = sType;
406
407 return sCodec;
408 }
409
410
412 private int unsigned (byte by) {
413 final byte MinusOne = -1;
414
415 return (by<0) ? ((int) (by*MinusOne))+128 : (int) by;
416 }
417
418
420 private boolean dimensionsJAI()
421 throws IOException , FileNotFoundException , NullPointerException {
422
423 boolean bRetVal = false;
424
425 if (DebugFile.trace) {
426 DebugFile.writeln("Begin Image.dimensionsJAI()");
427 DebugFile.incIdent();
428 }
429
430 RenderedImage oImg;
431 com.sun.media.jai.codec.ImageDecoder oDecoder;
432
433 if (DebugFile.trace) DebugFile.writeln("new FileInputStream(" + getStringNull(DB.path_image,"null") + ")");
434
435 FileInputStream oInputStream = new FileInputStream (getString(DB.path_image));
436
437 oDecoder = com.sun.media.jai.codec.ImageCodec.createImageDecoder(getImageCodec(), oInputStream, null);
438
439 oImg = oDecoder.decodeAsRenderedImage();
440
441 iDimX = oImg.getWidth();
442 iDimY = oImg.getHeight();
443
444 oInputStream.close();
445
446 bRetVal = true;
447
448 if (DebugFile.trace) {
449 DebugFile.decIdent();
450 DebugFile.writeln("End Image.dimensionsJAI() : " + String.valueOf(bRetVal));
451 }
452
453 return bRetVal;
454 }
456
458
474 public boolean dimensions()
475 throws IOException , FileNotFoundException , ArrayIndexOutOfBoundsException ,
476 UnsatisfiedLinkError , NullPointerException {
477
478 boolean bRetVal;
479 File oFile;
480 FileInputStream oFileRead;
481 String sType;
482 int iFound;
483 int iFileLen;
484 byte byFile[];
485 byte by;
486
487 if (DebugFile.trace) {
488 DebugFile.writeln("Begin Image.dimensions()");
489 DebugFile.incIdent();
490 }
491
492 sType = getImageType();
493
494 if (sType!=null) {
495
496 if (USE_JAI==iImagingLibrary) {
497 try {
498 bRetVal = dimensionsJAI();
499 }
500 catch (IOException ioe) { if (DebugFile.trace) DebugFile.decIdent(); bRetVal = false; }
501 }
502 else
503 bRetVal = false;
504
505 if (!bRetVal) {
506 sType = sType.toUpperCase();
507
508 if (sType.equals("GIF")) {
509 byFile = new byte[16];
510
511 if (DebugFile.trace) DebugFile.writeln("new FileInputStream(" + getStringNull(DB.path_image,"null") + ")");
512
513 oFileRead = new FileInputStream (getString(DB.path_image));
514 oFileRead.read(byFile,0,16);
515 oFileRead.close();
516
517 iDimX = (unsigned(byFile[7]))*256 + (unsigned(byFile[6]));
518 iDimY = (unsigned(byFile[9]))*256 + (unsigned(byFile[8]));
519
520 if (DebugFile.trace) DebugFile.writeln("[width=" + String.valueOf(iDimX) + ",height=" + String.valueOf(iDimY) + "]");
521
522 bRetVal = true;
523 }
525 else if (sType.equals("JPG") || sType.equals("JPEG")) {
526
527 if (DebugFile.trace) DebugFile.writeln("new File(" + getStringNull(DB.path_image,"null") + ")");
528
529 oFile = new File (getString(DB.path_image));
530
531 if (DebugFile.trace) DebugFile.writeln("filelen = " + String.valueOf(oFile.length()));
532
533 iFileLen = new Long (oFile.length()).intValue();
534
535 byFile = new byte[iFileLen];
536
537 oFileRead = new FileInputStream (oFile);
538 oFileRead.read(byFile, 0, iFileLen);
539 oFileRead.close();
540
541 iFound = 0;
542
543 for (int iPos=21;
544 iPos<iFileLen-10;
545 iPos = (2 + iPos + (unsigned(byFile[iPos + 1]) * 256 + unsigned(byFile[iPos+2]))) ) {
546
547 by = byFile[iPos];
548 if ((by>=0xC0 && by<=0xC3) || (by>=0xC5 && by<=0xC7) || (by>=0xC9 && by<=0xCB) || (by>=0xCD && by<=0xCF)) {
549 iFound = iPos;
550 break;
551 }
552 }
554 if (0!=iFound) {
555 iDimY = (unsigned(byFile[iFound + 4]) * 256 + unsigned(byFile[iFound + 5]));
556 iDimX = (unsigned(byFile[iFound + 6]) * 256 + unsigned(byFile[iFound + 7]));
557
558 if (DebugFile.trace) DebugFile.writeln("[width=" + String.valueOf(iDimX) + ",height=" + String.valueOf(iDimY) + "]");
559
560 bRetVal = true;
561 }
562 else {
563 if (DebugFile.trace) DebugFile.writeln("JPEG dimensions bytecodes not found");
564 bRetVal = false;
565 }
566 }
567 else
568 bRetVal = false;
569 }
570 } else
572 bRetVal = false;
573
574 if (DebugFile.trace) {
575 DebugFile.decIdent();
576 DebugFile.writeln("End Image.dimensions() : " + String.valueOf(bRetVal));
577 }
578
579 return bRetVal;
580 }
582
584 private void drawAWTImage(OutputStream outStr, int iThumbWidth, int iThumbHeight, float fQuality) throws IOException , InstantiationException , InterruptedException {
585
586 String sInputURI;
587 Frame awtFrame;
588 com.sun.image.codec.jpeg.JPEGImageEncoder encoder;
589 com.sun.image.codec.jpeg.JPEGEncodeParam param;
590 BufferedImage thumbImage;
591 Graphics2D graphics2D;
592 URL oURI;
593
594 if (DebugFile.trace) {
595 DebugFile.writeln("Begin Image.drawAWTImage([OutputStream], " + String.valueOf(iThumbWidth) + "," + String.valueOf(iThumbHeight) + "," + String.valueOf(fQuality));
596 DebugFile.incIdent();
597 }
598
599 sInputURI = getString(DB.path_image);
600
601 if (sInputURI.startsWith("http://") || sInputURI.startsWith("https://")) {
602 oURI = new URL (sInputURI);
603
604 if (DebugFile.trace) DebugFile.writeln("java.awt.Toolkit.getDefaultToolkit().getImage([java.net.URL])");
605
606 oImg = Toolkit.getDefaultToolkit().getImage(oURI);
607 }
608 else {
609 if (DebugFile.trace) DebugFile.writeln("java.awt.Toolkit.getDefaultToolkit().getImage(sInputURI)");
610
611 oImg = Toolkit.getDefaultToolkit().getImage(sInputURI);
612 }
613
614 int iImageWidth = oImg.getWidth(null);
615 int iImageHeight = oImg.getHeight(null);
616
617 double thumbRatio = ((double) iThumbWidth) / ((double) iThumbHeight);
618 double imageRatio = ((double) iImageWidth) / ((double) iImageHeight);
619
620 if (thumbRatio < imageRatio)
621 iImageHeight = (int)(iThumbWidth / imageRatio);
622 else
623 iThumbWidth = (int)(iThumbHeight * imageRatio);
624
625 if (null==mediaTracker) {
626 if (DebugFile.trace) DebugFile.writeln("new java.awt.;Frame()");
627
628 try {
629 awtFrame = new Frame ();
630 } catch (Exception e) { throw new InstantiationException ("Cannot instantiate java.awt.Frame " + (e.getMessage()!=null ? e.getMessage() : "")); }
631
632 if (DebugFile.trace) DebugFile.writeln("new MediaTracker([Frame])");
633
634 mediaTracker = new MediaTracker (awtFrame);
635 }
637 mediaTracker.addImage(oImg, 0);
638 mediaTracker.waitForID(0);
639
640 thumbImage = new BufferedImage (iThumbWidth, iThumbHeight, BufferedImage.TYPE_INT_RGB);
643
644 if (DebugFile.trace) DebugFile.writeln("java.awt.Graphics2D = thumbImage.createGraphics()");
645
646 graphics2D = thumbImage.createGraphics();
647 graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);
648 graphics2D.drawImage(oImg, 0, 0, iThumbWidth, iThumbHeight, null);
649 graphics2D.dispose();
650
651 if (DebugFile.trace) DebugFile.writeln("com.sun.image.codec.jpeg.JPEGImageEncoder = JPEGCodec.createJPEGEncoder([OutputStream]);");
652
653 encoder = com.sun.image.codec.jpeg.JPEGCodec.createJPEGEncoder(outStr);
654 param = encoder.getDefaultJPEGEncodeParam(thumbImage);
655
656 fQuality = Math.max(0, Math.min(fQuality, 100));
657 if (fQuality>1)
658 param.setQuality(fQuality / 100.0f, false);
659 else
660 param.setQuality(fQuality, false);
661
662 encoder.setJPEGEncodeParam(param);
663
664 if (DebugFile.trace) DebugFile.writeln("JPEGImageEncoder.encode([BufferedImage]);");
665
666 encoder.encode(thumbImage);
667
668 thumbImage.flush();
669
670 mediaTracker.removeImage(oImg, 0);
671
672 if (DebugFile.trace) {
673 DebugFile.decIdent();
674 DebugFile.writeln("End Image.drawAWTImage()");
675 }
676 }
678
679
681 private void drawJAIImage(OutputStream outStr, int iThumbWidth, int iThumbHeight, float fQuality)
682 throws IOException , InterruptedException , NullPointerException , IllegalArgumentException {
683
684 com.sun.media.jai.codec.ImageDecoder oDecoder;
685 RenderedImage oRenderedImg;
686 javax.media.jai.PlanarImage oPlI;
687 javax.media.jai.PlanarImage oScI;
688 ParameterBlock oBlk;
689 com.sun.media.jai.codec.ImageEncoder oImgEnc;
690 String sInputURI;
691 InputStream oInputStream;
692 URL oURI;
693
694 if (DebugFile.trace) {
695 DebugFile.writeln("Begin Image.drawJAIImage([OutputStream], " + String.valueOf(iThumbWidth) + "," + String.valueOf(iThumbHeight) + "," + String.valueOf(fQuality) + ")");
696 DebugFile.incIdent();
697 }
698
699 sInputURI = getString(DB.path_image);
700
701 if (sInputURI.startsWith("http://") || sInputURI.startsWith("https://")) {
702
703 if (DebugFile.trace) DebugFile.writeln("new URL(" + sInputURI + ")");
704
705 oURI = new URL (sInputURI);
706 oInputStream = oURI.openStream();
707 }
708 else {
709 if (DebugFile.trace) DebugFile.writeln("new FileInputStream(" + sInputURI + ")");
710
711 try {
712 oInputStream = new FileInputStream (sInputURI);
713 } catch (FileNotFoundException fnf) {
714 if (DebugFile.trace) DebugFile.decIdent();
715 throw new FileNotFoundException (fnf.getMessage());
716 } catch (IOException ioe) {
717 if (DebugFile.trace) DebugFile.decIdent();
718 throw new IOException (ioe.getMessage());
719 }
720 }
721
722 oDecoder = com.sun.media.jai.codec.ImageCodec.createImageDecoder(getImageCodec(), oInputStream, null);
723
724 oRenderedImg = oDecoder.decodeAsRenderedImage();
725
726 if (getImageType().equals("gif")) {
727 try {
729 javax.media.jai.ImageLayout layout = new javax.media.jai.ImageLayout();
730
731 ColorModel cm = new ComponentColorModel (ColorSpace.getInstance(ColorSpace.CS_sRGB),
732 new int[] {8,8,8}, false, false,
733 Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
734 layout.setColorModel(cm);
735 layout.setSampleModel(cm.createCompatibleSampleModel(oRenderedImg.getWidth(),oRenderedImg.getHeight()));
736 RenderingHints hints = new RenderingHints (javax.media.jai.JAI.KEY_IMAGE_LAYOUT, layout);
737 javax.media.jai.ParameterBlockJAI pb = new javax.media.jai.ParameterBlockJAI( "format" );
738 pb.addSource( oRenderedImg );
739 oRenderedImg = javax.media.jai.JAI.create( "format", pb, hints );
740 } catch (IllegalArgumentException iae) {
741 if (DebugFile.trace) DebugFile.writeln(iae.getMessage() + " " + oRenderedImg.getColorModel().getClass().getName() + " " + oRenderedImg.getSampleModel().getClass().getName());
742 }
743 }
746 oPlI = javax.media.jai.PlanarImage.wrapRenderedImage(oRenderedImg);
747
748 int iImageWidth = oPlI.getWidth();
749 int iImageHeight = oPlI.getHeight();
750
751 if (DebugFile.trace) DebugFile.writeln("image width " + String.valueOf(iImageWidth));
752 if (DebugFile.trace) DebugFile.writeln("image height " + String.valueOf(iImageHeight));
753
754 float thumbRatio = ((float) iThumbWidth) / ((float) iThumbHeight);
755
756 if (DebugFile.trace) DebugFile.writeln("thumb ratio " + String.valueOf(thumbRatio));
757
758 float imageRatio = ((float) iImageWidth) / ((float) iImageHeight);
759
760 if (DebugFile.trace) DebugFile.writeln("image ratio " + String.valueOf(imageRatio));
761
762 if (thumbRatio < imageRatio)
763 iThumbHeight = (int)(iThumbWidth / imageRatio);
764 else
765 iThumbWidth = (int)(iThumbHeight * imageRatio);
766
767 float scaleW = ((float) iThumbWidth) / ((float) iImageWidth);
768
769 if (DebugFile.trace) DebugFile.writeln("scale width " + String.valueOf(scaleW));
770
771 float scaleH = ((float) iThumbHeight) / ((float) iImageHeight);
772
773 if (DebugFile.trace) DebugFile.writeln("scale height " + String.valueOf(scaleH));
774
775 oBlk = new ParameterBlock ();
776
777 oBlk.addSource(oPlI);
778
779 oBlk.add(scaleW);
780 oBlk.add(scaleH);
781 oBlk.add(0.0f);
782 oBlk.add(0.0f);
783 oBlk.add(new javax.media.jai.InterpolationBilinear());
784
785 if (DebugFile.trace) DebugFile.writeln("JAI.create (\"scale\", [ParameterBlock], null)");
786
787 oScI = javax.media.jai.JAI.create("scale", oBlk, null);
789 if (DebugFile.trace) DebugFile.writeln("ImageCodec.createImageEncoder( \"jpeg\", [OutputStream], null )");
790
791 oImgEnc = com.sun.media.jai.codec.ImageCodec.createImageEncoder( "jpeg", outStr, null );
792
793 if (null==oImgEnc) {
794 oInputStream.close();
795 if (DebugFile.trace) DebugFile.decIdent();
796 throw new NullPointerException ("Cannot create ImageEncoder for jpeg");
797 }
798 else {
799 if (DebugFile.trace) DebugFile.writeln("ImageEncoder.encode ([PlanarImage])");
800
801 oImgEnc.encode( oScI );
803 oImgEnc =null;
804
805 oInputStream.close();
806 }
807
808 if (DebugFile.trace) {
809 DebugFile.decIdent();
810 DebugFile.writeln("End Image.drawJAIImage()");
811 }
812 }
814
826 public byte[] createThumbBitmap(int iThumbWidth, int iThumbHeight, float fQuality)
827 throws NullPointerException , IOException , InterruptedException , InstantiationException {
828
829 if (DebugFile.trace) {
830 DebugFile.writeln("Begin Image.createThumbBitmap(" + String.valueOf(iThumbWidth) + "," + String.valueOf(iThumbHeight) + "," + String.valueOf(fQuality) + ")");
831 DebugFile.incIdent();
832 }
833
834 ByteArrayOutputStream outStr = new ByteArrayOutputStream (iThumbWidth*iThumbHeight*3+1024);
835
836 if (USE_AWT==iImagingLibrary)
837 drawAWTImage (outStr, iThumbWidth, iThumbHeight, fQuality);
838 else
839 drawJAIImage (outStr, iThumbWidth, iThumbHeight, fQuality);
840
841 if (DebugFile.trace) {
842 DebugFile.decIdent();
843 DebugFile.writeln("End Image.createThumbBitmap()");
844 }
845
846 return outStr.toByteArray();
847 }
849
862
863 public void createThumbFile(String sOutputPath, int iThumbWidth, int iThumbHeight, float fQuality)
864 throws NullPointerException , InterruptedException , IOException , InstantiationException {
865
866 if (DebugFile.trace) {
867 DebugFile.writeln("Begin Image.createThumbFile(" + sOutputPath + "," + String.valueOf(iThumbWidth) + "," + String.valueOf(iThumbHeight) + "," + String.valueOf(fQuality) + ")");
868 DebugFile.incIdent();
869 }
870
871 FileOutputStream outStr = new FileOutputStream (sOutputPath);
872
873 if (USE_AWT==iImagingLibrary)
874 drawAWTImage (outStr, iThumbWidth, iThumbHeight, fQuality);
875 else
876 drawJAIImage (outStr, iThumbWidth, iThumbHeight, fQuality);
877
878 outStr.close();
879 outStr=null;
880
881 if (DebugFile.trace) {
882 DebugFile.decIdent();
883 DebugFile.writeln("End Image.createThumbFile()");
884 }
885 }
887
889
897 public void write(OutputStream oOut)
898 throws NullPointerException ,IOException ,InstantiationException ,InterruptedException {
899
900 if (DebugFile.trace) {
901 DebugFile.writeln("Begin Image.write([OutputStream])");
902 DebugFile.incIdent();
903 }
904
905 if (null==oImg) {
906 if (DebugFile.trace) DebugFile.incIdent();
907 throw new NullPointerException ("java.awt.Image is null");
908 }
909
910 com.sun.media.jai.codec.ImageEncoder oEnc = com.sun.media.jai.codec.ImageCodec.createImageEncoder(getImageCodec(), oOut, null);
911
912 if (null==oEnc) {
913 if (DebugFile.trace) DebugFile.incIdent();
914
915 throw new InstantiationException ("ImageCodec.createImageEncoder("+getImageCodec()+")");
916 }
917 if (USE_JAI==iImagingLibrary) {
918
919 RenderedImage oRImg = javax.media.jai.JAI.create("awtimage", oImg);
920
921 if (null==oEnc) {
922 if (DebugFile.trace) DebugFile.incIdent();
923 throw new InstantiationException ("JAI.create(awtimage, "+oImg.getClass().getName()+")");
924 }
925
926 oEnc.encode(oRImg);
927 }
928 else {
929 int iImageWidth = oImg.getWidth(null);
930 int iImageHeight = oImg.getHeight(null);
931
932 if (null==mediaTracker) {
933 if (DebugFile.trace) DebugFile.writeln("new java.awt.Frame()");
934
935 Frame awtFrame = null;
936 try {
937 awtFrame = new Frame ();
938 } catch (Exception e) { throw new InstantiationException ("Cannot instantiate java.awt.Frame " + (e.getMessage()!=null ? e.getMessage() : "")); }
939
940 if (DebugFile.trace) DebugFile.writeln("new MediaTracker([Frame])");
941
942 mediaTracker = new MediaTracker (awtFrame);
943 }
945 mediaTracker.addImage(oImg, 0);
946 mediaTracker.waitForID(0);
947
948 BufferedImage oBImg = new BufferedImage (iImageWidth, iImageHeight, BufferedImage.TYPE_INT_RGB);
949
950 if (DebugFile.trace) DebugFile.writeln("java.awt.Graphics2D = thumbImage.createGraphics()");
951
952 Graphics2D graphics2D = oBImg.createGraphics();
953 graphics2D.drawImage(oImg, 0, 0, iImageWidth, iImageHeight, null);
954 graphics2D.dispose();
955
956 oEnc.encode(oBImg);
957
958 mediaTracker.removeImage(oImg,0);
959 }
960
961 if (DebugFile.trace) {
962 DebugFile.decIdent();
963 DebugFile.writeln("End Image.write([OutputStream])");
964 }
965 }
966
967
969
979 public static byte[] blankGIF() {
980 return Base64Decoder.decodeToBytes("R0lGODlhAQABAJEAAAAAAP///////wAAACH5BAEAAAIALAAAAAABAAEAAAICVAEAOw==");
981 }
982
983
984
987 private static void printUsage() {
988 System.out.println("Usage:");
989 System.out.println("com.knowgate.hipergate.Image [jai|awt] thumbnail path_original path_new_thumbnail int_thumb_width int_thumb_height float_quality");
990 System.out.println("Options:");
991 System.out.println("jai -> Use SUN Java Advanced Imaging (requires SUN's libraries");
992 System.out.println("awt -> Use Abstract Windowing Toolkit (requires X-Windows or Win32)");
993 System.out.println("path_original -> Full path to original .GIF or .JPEG image");
994 System.out.println("path_new_thumbnail -> Full path to generated thumbnail");
995 System.out.println("int_thumb_width -> Thumbnail width");
996 System.out.println("int_thumb_height -> Thumbnail height");
997 System.out.println("float_quality -> JPEG quality for thumbnail [0..100]");
998 }
999
1000
1017 public static void main(String [] argv)
1018 throws NumberFormatException , InstantiationException , InterruptedException ,
1019 FileNotFoundException , IOException {
1020
1021 DBBind oDBB = new DBBind();
1022
1023 Image oImg;
1024
1025 if (argv.length<6 || argv.length>7) {
1026 System.out.println("");
1027 System.out.println("Invalid number of parameters");
1028 printUsage();
1029 }
1030 else if (!argv[0].equalsIgnoreCase("jai") && !argv[0].equalsIgnoreCase("awt")
1031 && !argv[0].equalsIgnoreCase("thumbnail")) {
1032 System.out.println("");
1033 System.out.println("Parameter 1 must be jai,awt or thumbnail");
1034 printUsage();
1035 }
1036 else if ((argv[0].equalsIgnoreCase("jai") || argv[0].equalsIgnoreCase("awt"))
1037 && !argv[1].equalsIgnoreCase("thumbnail")) {
1038 System.out.println("");
1039 System.out.println("Parameter 2 must be thumbnail");
1040 printUsage();
1041 }
1042 else {
1043 if (argv[0].equalsIgnoreCase("jai")) {
1044 oImg = new Image(USE_JAI);
1045 oImg.put(DB.path_image, argv[2]);
1046 oImg.createThumbFile(argv[3], Integer.parseInt(argv[4]), Integer.parseInt(argv[5]), Float.parseFloat(argv[6]));
1047 oImg = null;
1048 }
1049 else if (argv[0].equalsIgnoreCase("awt")) {
1050 oImg = new Image(USE_AWT);
1051 oImg.put(DB.path_image, argv[2]);
1052 oImg.createThumbFile(argv[3], Integer.parseInt(argv[4]), Integer.parseInt(argv[5]), Float.parseFloat(argv[6]));
1053 oImg = null;
1054 }
1055 else {
1056 oImg = new Image(USE_AWT);
1057 oImg.put(DB.path_image, argv[1]);
1058 oImg.createThumbFile(argv[2], Integer.parseInt(argv[3]), Integer.parseInt(argv[4]), Float.parseFloat(argv[5]));
1059 oImg = null;
1060 }
1061 }
1062 oDBB.close();
1063
1064 if (argv.length==6)
1065 System.out.println("Thumbnail " + argv[2] + " successfully created");
1066 else
1067 System.out.println("Thumbnail " + argv[3] + " successfully created");
1068
1069 }
1071
1074 public static final int USE_AWT = 0;
1075 public static final int USE_JAI = 1;
1076
1077 public static final short ClassId = 13;
1078
1079} |
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