Examples with IIORegistry javax.imageio.spi.IIORegistry used on opensource projects

Example 6 with IIORegistry

use of javax.imageio.spi.IIORegistry in project jdk8u_jdk by JetBrains.

the class GetNumImages method main.

public static void main(String[] args) throws Exception {
    IIORegistry registry = IIORegistry.getDefaultInstance();
    // test ImageReader.getNumImages() for all available ImageReaders,
    // with no source set
    Iterator readerspis = registry.getServiceProviders(ImageReaderSpi.class, false);
    while (readerspis.hasNext()) {
        boolean caughtEx = false;
        ImageReaderSpi readerspi = (ImageReaderSpi) readerspis.next();
        ImageReader reader = readerspi.createReaderInstance();
        try {
            reader.getNumImages(false);
        } catch (IllegalStateException ise) {
            // caught exception, everything's okay
            caughtEx = true;
        }
        if (!caughtEx) {
            throw new RuntimeException("Test failed: exception was not " + "thrown for null input: " + reader);
        }
    }
    // test ImageReader.getNumImages() for all available ImageReaders,
    // with source set, seekForwardOnly and allowSearch both true
    readerspis = registry.getServiceProviders(ImageReaderSpi.class, false);
    while (readerspis.hasNext()) {
        boolean caughtEx = false;
        ImageReaderSpi readerspi = (ImageReaderSpi) readerspis.next();
        ImageReader reader = readerspi.createReaderInstance();
        byte[] barr = new byte[100];
        ByteArrayInputStream bais = new ByteArrayInputStream(barr);
        ImageInputStream iis = ImageIO.createImageInputStream(bais);
        try {
            reader.setInput(iis, true);
            reader.getNumImages(true);
        } catch (IllegalStateException ise) {
            // caught exception, everything's okay
            caughtEx = true;
        }
        if (!caughtEx) {
            throw new RuntimeException("Test failed: exception was not " + "thrown when allowSearch and " + "seekForwardOnly are both true: " + reader);
        }
    }
}

Example 7 with IIORegistry

use of javax.imageio.spi.IIORegistry in project jdk8u_jdk by JetBrains.

the class NullInputOutput method main.

public static void main(String[] args) throws Exception {
    IIORegistry registry = IIORegistry.getDefaultInstance();
    // test ImageReader.read() for all available ImageReaders
    Iterator readerspis = registry.getServiceProviders(ImageReaderSpi.class, false);
    while (readerspis.hasNext()) {
        ImageReaderSpi readerspi = (ImageReaderSpi) readerspis.next();
        ImageReader reader = readerspi.createReaderInstance();
        try {
            reader.read(0);
        } catch (IllegalStateException ise) {
        // caught exception, everything's okay
        }
    }
    // test ImageWriter.write() for all available ImageWriters
    BufferedImage bi = new BufferedImage(1, 1, BufferedImage.TYPE_INT_RGB);
    Iterator writerspis = registry.getServiceProviders(ImageWriterSpi.class, false);
    while (writerspis.hasNext()) {
        ImageWriterSpi writerspi = (ImageWriterSpi) writerspis.next();
        ImageWriter writer = writerspi.createWriterInstance();
        try {
            writer.write(bi);
        } catch (IllegalStateException ise) {
        // caught exception, everything's okay
        }
    }
}

Example 8 with IIORegistry

use of javax.imageio.spi.IIORegistry in project jdk8u_jdk by JetBrains.

the class CanWriteSequence method main.

public static void main(final String[] args) throws Exception {
    final IIORegistry registry = IIORegistry.getDefaultInstance();
    final Iterator<ImageWriterSpi> iter = registry.getServiceProviders(ImageWriterSpi.class, provider -> true, true);
    // Validates all supported ImageWriters
    while (iter.hasNext()) {
        final ImageWriter writer = iter.next().createWriterInstance();
        System.out.println("ImageWriter = " + writer);
        test(writer);
    }
    System.out.println("Test passed");
}