BundleBeanDeploymentArchiveFactory.java

/**
 * JBoss, Home of Professional Open Source
 * Copyright 2009, Red Hat, Inc. and/or its affiliates, and individual
 * contributors by the @authors tag. See the copyright.txt in the
 * distribution for a full listing of individual contributors.
 *
 * 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 org.jboss.weld.environment.osgi.integration.discovery.bundle;

import java.net.URL;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;

import org.jboss.weld.bootstrap.api.Bootstrap;
import org.jboss.weld.bootstrap.spi.BeanDeploymentArchive;
import org.jboss.weld.environment.osgi.integration.discovery.BundleBeanDeploymentArchive;
import org.osgi.framework.Bundle;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Scan the installed bundles.
 * 
 * @author Mathieu ANCELIN - SERLI (mathieu.ancelin@serli.com)
 */
public class BundleBeanDeploymentArchiveFactory {

    private static final Logger log = LoggerFactory.getLogger(BundleBeanDeploymentArchiveFactory.class);

    public BeanDeploymentArchive scan(Bundle bundle, Bootstrap bootstrap) {
        // TODO : use BundleScanner API
        List<String> discoveredClasses = new ArrayList<String>();
        List<URL> discoveredBeanXmlUrls = new ArrayList<URL>();
        Enumeration beansXml = bundle.findEntries("META-INF", "beans.xml", true);
        if (beansXml != null) {
            while (beansXml.hasMoreElements()) {
                discoveredBeanXmlUrls.add((URL) beansXml.nextElement());
            }
            Enumeration beanClasses = bundle.findEntries("", "*.class", true);
            if (beanClasses != null) {
                while (beanClasses.hasMoreElements()) {
                    URL url = (URL) beanClasses.nextElement();
                    String clazz = url.getFile().substring(1).replace("/", ".").replace(".class", "");
                    discoveredClasses.add(clazz);
                }
            }
        }
        BundleBeanDeploymentArchive archive = new BundleBeanDeploymentArchive("bundle-bean-deployment-archive-" + bundle.getBundleId());
        archive.setBeansXml(bootstrap.parse(discoveredBeanXmlUrls));
        archive.setBeanClasses(discoveredClasses);

        return archive;
    }
}