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Diffstat (limited to 'branches/sca-java-2.0-M4/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/node/osgi/impl/NodeManager.java')
-rw-r--r-- | branches/sca-java-2.0-M4/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/node/osgi/impl/NodeManager.java | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/branches/sca-java-2.0-M4/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/node/osgi/impl/NodeManager.java b/branches/sca-java-2.0-M4/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/node/osgi/impl/NodeManager.java new file mode 100644 index 0000000000..6914e09b8e --- /dev/null +++ b/branches/sca-java-2.0-M4/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/node/osgi/impl/NodeManager.java @@ -0,0 +1,143 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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.apache.tuscany.sca.node.osgi.impl; + +import java.net.URL; +import java.util.Dictionary; +import java.util.logging.Level; +import java.util.logging.Logger; + +import org.apache.tuscany.sca.node.Node; +import org.apache.tuscany.sca.node.configuration.NodeConfiguration; +import org.osgi.framework.Bundle; +import org.osgi.framework.BundleContext; +import org.osgi.framework.BundleEvent; +import org.osgi.framework.ServiceEvent; +import org.osgi.framework.ServiceListener; +import org.osgi.framework.SynchronousBundleListener; + +/** + * Managing the mapping between OSGi bundles and SCA implementation.osgi + */ +public class NodeManager implements SynchronousBundleListener, ServiceListener { + private static final Logger logger = Logger.getLogger(NodeManager.class.getName()); + private BundleContext bundleContext; + OSGiNodeFactoryImpl factory; + + public NodeManager(BundleContext bundleContext) { + super(); + this.bundleContext = bundleContext; + this.factory = new OSGiNodeFactoryImpl(this.bundleContext); + } + + public void start() { + for (Bundle b : bundleContext.getBundles()) { + if ((b.getState() & Bundle.ACTIVE) != 0) { + // Process the active bundles + bundleStarted(b); + } + } + } + + public void stop() { + if (factory != null) { + factory.destroy(); + } + } + + public static boolean isSCABundle(Bundle bundle) { + Dictionary<?, ?> headers = bundle.getHeaders(); + // OSGi RFC 119 SCA + if (headers.get("SCA-Composite") != null) { + return true; + } + + URL bundleComposite = bundle.getResource("OSGI-INF/sca/bundle.composite"); + if (bundleComposite != null) { + return true; + } + + /* FIXME: What if there is a META-INF/sca-contribution.xml? There are two cases: + * 1. The file contains deployable elements + * 2. The file doesn't contain deployable elements + */ + + /* + * FIXME: Do we want to use all of the .composite files under OSGI-INF/sca? + */ + + /* + Enumeration<?> entries = bundle.findEntries("OSGI-INF/sca", "bundle.composite", false); + if (entries != null && entries.hasMoreElements()) { + return true; + } + + // OSGi Declarative Services + if (headers.get("Service-Component") != null) { + return true; + } + + // OSGI RFC 124: BluePrint Service + if (headers.get("Bundle-Blueprint") != null) { + return true; + } + + entries = bundle.findEntries("OSGI-INF/blueprint", "*.xml", false); + if (entries != null && entries.hasMoreElements()) { + return true; + } + */ + return false; + } + + private void bundleStarted(Bundle bundle) { + if (!isSCABundle(bundle)) { + return; + } + try { + NodeConfiguration configuration = factory.getConfiguration(bundle, null); + Node node = factory.createNode(configuration); + node.start(); + } catch (Throwable e) { + logger.log(Level.SEVERE, e.getMessage(), e); + } + } + + private void bundleStopping(Bundle bundle) { + Node node = factory.getNodes().get(bundle); + if (node == null) { + return; + } + node.stop(); + } + + public void serviceChanged(ServiceEvent event) { + } + + public void bundleChanged(BundleEvent event) { + int type = event.getType(); + if (type == BundleEvent.STOPPING) { + bundleStopping(event.getBundle()); + } else if (type == BundleEvent.STARTED) { + bundleStarted(event.getBundle()); + } + } + +} |