/*

 * 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     8163258

 * @summary Test verifies that when we create our own ImageReaderSpi

 *          implementaion with MIMEType or FileSuffix as null, it should

 *          not throw NullPointerException when we call

 *          ImageIO.getReaderMIMETypes() or ImageIO.getReaderFileSuffixes().

 * @run     main GetReaderWriterInfoNullTest

 */

import java.awt.image.BufferedImage;

import java.io.IOException;

import java.util.Iterator;

import java.util.Locale;

import javax.imageio.IIOException;

import javax.imageio.ImageReadParam;

import javax.imageio.ImageReader;

import javax.imageio.ImageTypeSpecifier;

import javax.imageio.metadata.IIOMetadata;

import javax.imageio.spi.ImageReaderSpi;

import javax.imageio.stream.ImageInputStream;

import javax.imageio.ImageIO;

import javax.imageio.spi.IIORegistry;

class TestImageReaderSpi extends ImageReaderSpi {

    public TestImageReaderSpi(String[] FORMATNAMES, String[] SUFFIXES,

                              String[] MIMETYPES) {

        super("J Duke",          // vendor

              "1.0",             // version

              FORMATNAMES,       // format names

              SUFFIXES,          // file suffixes

              MIMETYPES,         // mimetypes

              "readTest.TestImageReader",    // reader class name

              new Class<?>[] { ImageInputStream.class }, // input types

              null,              // writer class names.

              true,              // supports native metadata,

              null,              // [no] native stream metadata format

              null,              // [no] native stream metadata class

              null,              // [no] native extra stream metadata format

              null,              // [no] native extra stream metadata class

              true,              // supports standard metadata,

              null,              // metadata format name,

              null,              // metadata format class name

              null,              // [no] extra image metadata format

              null               // [no] extra image metadata format class

         );

    }

    @Override

    public boolean canDecodeInput(Object source) throws IOException {

        throw new UnsupportedOperationException("Not supported yet.");

    }

    @Override

    public String getDescription(Locale locale) {

        throw new UnsupportedOperationException("Not supported yet.");

    }

    @Override

    public ImageReader createReaderInstance(Object extension)

            throws IOException {

        throw new UnsupportedOperationException("Not supported yet.");

    }

}

class TestImageReader extends ImageReader {

    public TestImageReader(ImageReaderSpi originatingProvider) {

        super(originatingProvider);

    }

    @Override

    public int getNumImages(boolean allowSearch) throws IOException {

        throw new UnsupportedOperationException("Not supported yet.");

    }

    @Override

    public int getWidth(int imageIndex) throws IOException {

        throw new UnsupportedOperationException("Not supported yet.");

    }

    @Override

    public int getHeight(int imageIndex) throws IOException {

        throw new UnsupportedOperationException("Not supported yet.");

    }

    @Override

    public Iterator<ImageTypeSpecifier> getImageTypes(int imageIndex)

            throws IOException {

        throw new UnsupportedOperationException("Not supported yet.");

    }

    @Override

    public IIOMetadata getStreamMetadata() throws IOException {

        throw new UnsupportedOperationException("Not supported yet.");

    }

    @Override

    public IIOMetadata getImageMetadata(int imageIndex) throws IOException {

        throw new UnsupportedOperationException("Not supported yet.");

    }

    @Override

    public BufferedImage read(int imageIndex, ImageReadParam param)

            throws IOException {

        throw new UnsupportedOperationException("Not supported yet.");

    }

}

public class GetReaderWriterInfoNullTest {

    static final String[] FORMATNAMES = {"readTest"};

    static final String[] SUFFIXES = {"readTest"};

    static final String[] MIMETYPES = {"readTest"};

    public static void main (String[] args) throws IIOException {

        // Verify getReaderMIMETypes() behavior by keeping MIMEType as null.

        TestImageReaderSpi mimeNullReadSpi =

                new TestImageReaderSpi(FORMATNAMES, SUFFIXES, null);

        IIORegistry.getDefaultInstance().

                registerServiceProvider(mimeNullReadSpi);

        ImageIO.getReaderMIMETypes();

        IIORegistry.getDefaultInstance().

                deregisterServiceProvider(mimeNullReadSpi);

        /*

         * Verify getReaderFileSuffixes() behavior by keeping

         * file suffix as null.

         */

        TestImageReaderSpi suffixNullReadSpi =

                new TestImageReaderSpi(FORMATNAMES, null, MIMETYPES);

        IIORegistry.getDefaultInstance().

                registerServiceProvider(suffixNullReadSpi);

        ImageIO.getReaderFileSuffixes();

        IIORegistry.getDefaultInstance().

                deregisterServiceProvider(suffixNullReadSpi);

    }

}