com.amitinside.e4.bundleresourceloader.internal.BundleResourceLoaderImpl.java Source code

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Here is the source code for com.amitinside.e4.bundleresourceloader.internal.BundleResourceLoaderImpl.java

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/*******************************************************************************
 * Copyright (C) 2015 - Amit Kumar Mondal <admin@amitinside.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *******************************************************************************/
package com.amitinside.e4.bundleresourceloader.internal;

import java.io.IOException;
import java.io.InputStream;
import java.net.URL;

import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.graphics.Image;
import org.osgi.framework.Bundle;
import org.osgi.framework.FrameworkUtil;

import com.amitinside.e4.bundleresourceloader.IBundleResourceLoader;

public class BundleResourceLoaderImpl implements IBundleResourceLoader {

    @Override
    public Image loadImage(Class<?> clazz, String path) {
        final Bundle bundle = FrameworkUtil.getBundle(clazz);
        final URL url = FileLocator.find(bundle, new Path(path), null);
        final ImageDescriptor imageDescr = ImageDescriptor.createFromURL(url);
        return imageDescr.createImage();
    }

    @Override
    public <T> T loadResource(Class<?> bundleClazz, Class<T> resourceTypeclazz, String pathToFile)
            throws IOException {
        final Bundle bundle = FrameworkUtil.getBundle(bundleClazz);
        final InputStream stream = FileLocator.openStream(bundle, new Path(pathToFile), false);

        if (resourceTypeclazz.isInstance(InputStream.class))
            return resourceTypeclazz.cast(stream);

        return null;
    }

}