/*
 *    Geotoolkit.org - An Open Source Java GIS Toolkit
 *    http://www.geotoolkit.org
 *
 *    (C) 2010-2012, Open Source Geospatial Foundation (OSGeo)
 *    (C) 2010-2012, Geomatys
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation;
 *    version 2.1 of the License.
 *
 *    This library 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
 *    Lesser General Public License for more details.
 */
package org.geotoolkit.image.internal;

import java.util.List;
import java.util.Properties;

import javax.media.jai.JAI;
import javax.media.jai.OperationRegistry;
import javax.media.jai.RegistryElementDescriptor;

//import org.geotoolkit.coverage.GridSampleDimension;

import org.junit.*;
import static org.junit.Assert.*;


/**
 * Tests the {@link Setup}.
 *
 * @author Martin Desruisseaux (Geomatys)
 * @version 3.16
 *
 * @since 3.16
 */
public final strictfp class SetupTest {
////    /**
////     * Tests the deregistration using the internal API. We have to register
////     * again after this test in order to allow other tests to run correctly.
////     */
////    @Test
////    @Ignore("Setup class will be removed.")
////    public void testInteral() {
////        /*
////         * In current Geotk implementation, the "SampleTranscoder" operation is registered
////         * when the GridSampleDimension class is initialized. Create a dummy instance just
////         * for making sure that this class has been initialized.
////         */
////        assertFalse(new GridSampleDimension("Dummy").toString().isEmpty());
////        assertTrue(countGeotkOperations() != 0);
////        final Setup setup = new Setup();
////        setup.shutdown();
////        assertTrue(countGeotkOperations() == 0);
////        /*
////         * Re-register the JAI operations, so tests depending on them can continue to work.
////         */
////        setup.initialize(null, true);
////        assertTrue(countGeotkOperations() != 0);
////    }

//    /**
//     * Same test than above, but using the public API.
//     */
//    @Test
//    @Ignore("Setup class will be removed.")
//    public void testPublic() {
//        assertFalse(new GridSampleDimension("Dummy").toString().isEmpty());
//        org.geotoolkit.lang.Setup.initialize(null);
//        assertTrue(countGeotkOperations() != 0);
//        org.geotoolkit.lang.Setup.shutdown();
//        assertTrue(countGeotkOperations() == 0);
//        try {
//            org.geotoolkit.lang.Setup.initialize(null);
//            fail("Reinitialization shall not be allowed without \"force=true\" argument.");
//        } catch (IllegalStateException e) {
//            // This the expected exception.
//        }
//        final Properties properties = new Properties();
//        properties.put("force", "true");
//        org.geotoolkit.lang.Setup.initialize(properties);
//        assertTrue(countGeotkOperations() != 0);
//    }

    /**
     * Counts the number of Geotk operations registered in the default JAI instance.
     */
    private static int countGeotkOperations() {
        int count = 0;
        final OperationRegistry registry = JAI.getDefaultInstance().getOperationRegistry();
        for (final String mode : registry.getRegistryModes()) {
            @SuppressWarnings("unchecked")
            final List<RegistryElementDescriptor> descriptors = registry.getDescriptors(mode);
            for (final RegistryElementDescriptor descriptor : descriptors) {
                final String operationName = descriptor.getName();
                if (operationName.startsWith("org.geotoolkit.")) {
                    count++;
                }
            }
        }
        return count;
    }
}