org.eclipse.virgo.ide.beans.core.internal.locate.SpringOsgiBeansConfigPostProcessor.java Source code

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Here is the source code for org.eclipse.virgo.ide.beans.core.internal.locate.SpringOsgiBeansConfigPostProcessor.java

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/*******************************************************************************
 * Copyright (c) 2009 SpringSource, a divison of VMware, Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     SpringSource, a division of VMware, Inc. - initial API and implementation
 *******************************************************************************/
package org.eclipse.virgo.ide.beans.core.internal.locate;

import org.eclipse.virgo.ide.facet.core.FacetUtils;
import org.osgi.framework.BundleContext;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.parsing.BeanComponentDefinition;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.ide.eclipse.beans.core.model.IBean;
import org.springframework.ide.eclipse.beans.core.model.IBeansConfig;
import org.springframework.ide.eclipse.beans.core.model.process.IBeansConfigPostProcessingContext;
import org.springframework.ide.eclipse.beans.core.model.process.IBeansConfigPostProcessor;

/**
 * Automatically adds the <code>bundleContext</code> bean or type {@link BundleContext} to the
 * {@link IBeansConfig}.
 * <p>
 * This is convenience since Spring DM exposes this in every application context.
 * @author Christian Dupuis
 * @since 1.0.1
 */
public class SpringOsgiBeansConfigPostProcessor implements IBeansConfigPostProcessor {

    /** Name of the {@link BundleContext} bean */
    private static final String BUNDLE_CONTEXT_BEAN_NAME = "bundleContext";

    /** {@link BundleContext} class name */
    private static final String BUNDLE_CONTEXT_CLASS_NAME = BundleContext.class.getName();

    /**
     * {@inheritDoc}
     */
    public void postProcess(IBeansConfigPostProcessingContext postProcessingContext) {
        IBeansConfig config = postProcessingContext.getBeansConfig();
        if (IBeansConfig.Type.AUTO_DETECTED == config.getType()
                && FacetUtils.isBundleProject(config.getElementResource())) {

            // Check if there is already a bean called bundleContext
            for (IBean bean : postProcessingContext.getBeansConfigRegistrySupport().getBeans()) {
                if (BUNDLE_CONTEXT_BEAN_NAME.equals(bean.getElementName())) {
                    return;
                }
            }

            AbstractBeanDefinition beanDefinition = new RootBeanDefinition();
            beanDefinition.setBeanClassName(BUNDLE_CONTEXT_CLASS_NAME);
            beanDefinition.setRole(BeanDefinition.ROLE_INFRASTRUCTURE);
            BeanComponentDefinition componentDefinition = new BeanComponentDefinition(beanDefinition,
                    BUNDLE_CONTEXT_BEAN_NAME);

            postProcessingContext.getBeansConfigRegistrySupport().registerComponent(componentDefinition);
        }
    }

}