Example usage for javax.imageio ImageIO getImageReadersBySuffix

Introduction

In this page you can find the example usage for javax.imageio ImageIO getImageReadersBySuffix.

Prototype

public static Iterator<ImageReader> getImageReadersBySuffix(String fileSuffix) 

Source Link

Document

Returns an Iterator containing all currently registered ImageReader s that claim to be able to decode files with the given suffix.

Usage

From source file:Main.java

static public void main(String args[]) throws Exception {
    FileInputStream fin = new FileInputStream("a.gif");
    Iterator readers = ImageIO.getImageReadersBySuffix("GIF");
    ImageReader imageReader = (ImageReader) readers.next();
    ImageInputStream iis = ImageIO.createImageInputStream(fin);
    imageReader.setInput(iis, false);/*from  w ww. ja va2s.  c o m*/

    imageReader.addIIOReadProgressListener(new IIOReadProgressListener() {
        public void imageComplete(ImageReader source) {
            System.out.println("image complete " + source);
        }

        public void imageProgress(ImageReader source, float percentageDone) {
            System.out.println("image progress " + source + ": " + percentageDone + "%");
        }

        public void imageStarted(ImageReader source, int imageIndex) {
            System.out.println("image #" + imageIndex + " started " + source);
        }

        public void readAborted(ImageReader source) {
            System.out.println("read aborted " + source);
        }

        public void sequenceComplete(ImageReader source) {
            System.out.println("sequence complete " + source);
        }

        public void sequenceStarted(ImageReader source, int minIndex) {
            System.out.println("sequence started " + source + ": " + minIndex);
        }

        public void thumbnailComplete(ImageReader source) {
            System.out.println("thumbnail complete " + source);
        }

        public void thumbnailProgress(ImageReader source, float percentageDone) {
            System.out.println("thumbnail started " + source + ": " + percentageDone + "%");
        }

        public void thumbnailStarted(ImageReader source, int imageIndex, int thumbnailIndex) {
            System.out.println("thumbnail progress " + source + ", " + thumbnailIndex + " of " + imageIndex);
        }
    });

    BufferedImage image = imageReader.read(0);

    Iterator imageWriters = ImageIO.getImageWritersBySuffix("JPG");
    ImageWriter imageWriter = (ImageWriter) imageWriters.next();
    File file = new File("b.JPG");
    ImageOutputStream ios = ImageIO.createImageOutputStream(file);
    imageWriter.setOutput(ios);
    imageWriter.write(image);
}

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From source file:Main.java

public static boolean canReadExtension(String fileExt) {
    Iterator iter = ImageIO.getImageReadersBySuffix(fileExt);
    return iter.hasNext();
}

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From source file:Main.java

public Main() throws Exception {
    String filename = "a.png";
    FileInputStream inputStream = new FileInputStream(filename);
    String extensionName = filename.substring(filename.lastIndexOf('.') + 1);
    Iterator readers = ImageIO.getImageReadersBySuffix(extensionName);
    ImageReader imageReader = (ImageReader) readers.next();
    ImageInputStream imageInputStream = ImageIO.createImageInputStream(inputStream);
    imageReader.setInput(imageInputStream, false);
    int num = imageReader.getNumImages(true);
    images = new BufferedImage[num];
    for (int i = 0; i < num; ++i) {
        images[i] = imageReader.read(i);
    }//w  w w .ja  va  2 s.  c  o  m
    inputStream.close();
}

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From source file:Main.java

public Main(String filename) throws Exception {
    FileInputStream fin = new FileInputStream(filename);
    String suffix = filename.substring(filename.lastIndexOf('.') + 1);
    System.out.println("suf " + suffix);
    Iterator readers = ImageIO.getImageReadersBySuffix(suffix);
    ImageReader imageReader = (ImageReader) readers.next();
    ImageInputStream iis = ImageIO.createImageInputStream(fin);
    imageReader.setInput(iis, false);/*from w  w w  .ja va  2 s.  c  o m*/
    int num = imageReader.getNumImages(true);
    images = new BufferedImage[num];
    for (int i = 0; i < num; ++i) {
        images[i] = imageReader.read(i);
    }
    fin.close();
}

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From source file:it.geosolutions.imageio.plugins.nitronitf.ReaderTest.java

public void testInstalled() {
    assertTrue(ImageIO.getImageReadersBySuffix("ntf").hasNext());
    assertTrue(ImageIO.getImageReadersBySuffix("nitf").hasNext());
    assertTrue(ImageIO.getImageReadersBySuffix("nsf").hasNext());
}

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From source file:it.geosolutions.imageio.plugins.nitronitf.ImageIOUtils.java

/**
 * Returns an ImageReader given the input file
 * //from  w w w.j  a  v a 2s.c om
 * @param file
 * @return
 * @throws IOException
 */
public static ImageReader getImageReader(File file) throws IOException {
    String ext = FilenameUtils.getExtension(file.getName().toLowerCase());
    ImageReader reader = null;

    Iterator<ImageReader> imageReaders = ImageIO.getImageReadersBySuffix(ext);
    if (imageReaders.hasNext()) {
        reader = imageReaders.next();
        ImageInputStream stream = ImageIO.createImageInputStream(file);
        reader.setInput(stream);
    }
    return reader;
}

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From source file:it.tidalwave.imageio.test.ImageReaderTestSupport.java

/*******************************************************************************************************************
 *
 *
 ******************************************************************************************************************/
protected void assertMIMETypes(final String extension, final String... mimeTypes) {
    final Iterator<ImageReader> i = ImageIO.getImageReadersBySuffix(extension);
    assertTrue(i.hasNext());//from  ww  w.  j  av a2  s.c  o  m
    final ImageReader ir = i.next();
    assertNotNull(ir);
    assertFalse(i.hasNext());
    final ImageReaderSpi provider = ir.getOriginatingProvider();
    assertEquals(mimeTypes, provider.getMIMETypes());
}

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From source file:ImageIOTest.java

/**
 * Open a file and load the images.//  w  ww  .ja  va2 s.com
 */
public void openFile() {
    JFileChooser chooser = new JFileChooser();
    chooser.setCurrentDirectory(new File("."));
    String[] extensions = ImageIO.getReaderFileSuffixes();
    chooser.setFileFilter(new FileNameExtensionFilter("Image files", extensions));
    int r = chooser.showOpenDialog(this);
    if (r != JFileChooser.APPROVE_OPTION)
        return;
    File f = chooser.getSelectedFile();
    Box box = Box.createVerticalBox();
    try {
        String name = f.getName();
        String suffix = name.substring(name.lastIndexOf('.') + 1);
        Iterator<ImageReader> iter = ImageIO.getImageReadersBySuffix(suffix);
        ImageReader reader = iter.next();
        ImageInputStream imageIn = ImageIO.createImageInputStream(f);
        reader.setInput(imageIn);
        int count = reader.getNumImages(true);
        images = new BufferedImage[count];
        for (int i = 0; i < count; i++) {
            images[i] = reader.read(i);
            box.add(new JLabel(new ImageIcon(images[i])));
        }
    } catch (IOException e) {
        JOptionPane.showMessageDialog(this, e);
    }
    setContentPane(new JScrollPane(box));
    validate();
}

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From source file:com.frostwire.ImageCache.java

private void saveToCache(URL url, BufferedImage image, long date) {
    try {// w  ww. j a  v a2  s.co m
        File file = getCacheFile(url);

        if (file.exists()) {
            file.delete();
        }

        String filename = file.getName();
        int dotIndex = filename.lastIndexOf('.');
        String ext = filename.substring(dotIndex + 1);

        String formatName = ImageIO.getImageReadersBySuffix(ext).next().getFormatName();

        if (!file.getParentFile().exists()) {
            file.mkdirs();
        }
        ImageIO.write(image, formatName, file);
        file.setLastModified(date);
    } catch (Throwable e) {
        LOG.error("Failed to save image to cache: " + url, e);
    }
}

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From source file:com.jaeksoft.searchlib.util.ImageUtils.java

public static Dimension getDimensions(File imageFile) throws IOException {
    FileImageInputStream fiis = null;
    try {//from w  ww .  jav a 2  s .  co  m
        fiis = new FileImageInputStream(imageFile);
        ImageReader imageReader = ImageIO
                .getImageReadersBySuffix(FilenameUtils.getExtension(imageFile.getName())).next();
        imageReader.setInput(fiis);
        return new Dimension(imageReader.getWidth(0), imageReader.getHeight(0));
    } finally {
        IOUtils.close(fiis);
    }
}

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