/*
* Copyright ( c ) 2016 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
/*
* @ test
* @ bug 4924727
* @ summary Test verifies that if we call ImageReader . abort ( ) in
* IIOReadProgressListener . imageStarted ( ) or
* IIOReadProgressListener . imageProgress ( ) are we
* calling IIOReadProgressListener . readAborted ( ) for all readers .
* @ run main ReadAbortTest
*/
import java.awt.image.BufferedImage;
import java.io.File;
import java.util.Iterator;
import javax.imageio.ImageIO;
import javax.imageio.ImageReader;
import javax.imageio.event.IIOReadProgressListener;
import javax.imageio.stream.ImageInputStream;
import java.awt.Color;
import java.awt.Graphics2D;
import java.nio.file.Files;
public class ReadAbortTest implements IIOReadProgressListener {
ImageReader reader = null ;
ImageInputStream iis = null ;
BufferedImage bimg = null ;
File file;
boolean startAbort = false ;
boolean startAborted = false ;
boolean progressAbort = false ;
boolean progressAborted = false ;
Color srccolor = Color.red;
int width = 100 ;
int heght = 100 ;
public ReadAbortTest(String format) throws Exception {
try {
System.out.println("Test for format " + format);
bimg = new BufferedImage(width, heght,
BufferedImage.TYPE_INT_RGB);
Graphics2D g = bimg.createGraphics();
g.setColor(srccolor);
g.fillRect(0 , 0 , width, heght);
g.dispose();
file = File.createTempFile("src_" , "." + format, new File("." ));
ImageIO.write(bimg, format, file);
ImageInputStream iis = ImageIO.createImageInputStream(file);
Iterator iter = ImageIO.getImageReaders(iis);
while (iter.hasNext()) {
reader = (ImageReader) iter.next();
break ;
}
reader.setInput(iis);
reader.addIIOReadProgressListener(this );
// Abort reading in IIOReadProgressListener.imageStarted().
startAbort = true ;
bimg = reader.read(0 );
startAbort = false ;
// Abort reading in IIOReadProgressListener.imageProgress().
progressAbort = true ;
bimg = reader.read(0 );
progressAbort = false ;
iis.close();
/*
* All abort requests from imageStarted , imageProgress and
* imageComplete from IIOReadProgressListener should be reached
* otherwise throw RuntimeException .
*/
if (!(startAborted
&& progressAborted)) {
throw new RuntimeException("All IIOReadProgressListener abort"
+ " requests are not processed for format "
+ format);
}
} catch (Exception e) {
throw e;
} finally {
Files.delete (file.toPath());
}
}
/*
* Abstract methods that we need to implement from
* IIOReadProgressListener , and relevant for this test case .
*/
@Override
public void imageStarted(ImageReader source, int imageIndex) {
System.out.println("imageStarted called" );
if (startAbort) {
source.abort();
}
}
@Override
public void imageProgress(ImageReader source, float percentageDone) {
System.out.println("imageProgress called" );
if (progressAbort) {
source.abort();
}
}
@Override
public void readAborted(ImageReader source) {
System.out.println("readAborted called" );
// Verify IIOReadProgressListener.imageStarted() abort request.
if (startAbort) {
System.out.println("imageStarted aborted " );
startAborted = true ;
}
// Verify IIOReadProgressListener.imageProgress() abort request.
if (progressAbort) {
System.out.println("imageProgress aborted " );
progressAborted = true ;
}
}
public static void main(String args[]) throws Exception {
final String[] formats = {"bmp" , "png" , "gif" , "jpg" , "tif" };
for (String format : formats) {
new ReadAbortTest(format);
}
}
/*
* Remaining abstract methods that we need to implement from
* IIOReadProgressListener , but not relevant for this test case .
*/
@Override
public void imageComplete(ImageReader source) {
}
@Override
public void sequenceStarted(ImageReader reader, int i) {
}
@Override
public void sequenceComplete(ImageReader reader) {
}
@Override
public void thumbnailStarted(ImageReader reader, int i, int i1) {
}
@Override
public void thumbnailProgress(ImageReader reader, float f) {
}
@Override
public void thumbnailComplete(ImageReader reader) {
}
}
Messung V0.5 in Prozent C=95 H=94 G=94
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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