From e5b7380c874745c989d1816b8f552504f038e1bc Mon Sep 17 00:00:00 2001
From: lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>
Date: Thu, 26 Sep 2013 20:33:20 +0000
Subject: 2.0 branch for possible maintenance release

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1526672 13f79535-47bb-0310-9956-ffa450edef68
---
 .../tuscany/sca/node/osgi/impl/NodeManager.java    | 143 +++++++++++++++++++++
 1 file changed, 143 insertions(+)
 create mode 100644 sca-java-2.x/branches/2.0/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/node/osgi/impl/NodeManager.java

(limited to 'sca-java-2.x/branches/2.0/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/node/osgi/impl/NodeManager.java')

diff --git a/sca-java-2.x/branches/2.0/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/node/osgi/impl/NodeManager.java b/sca-java-2.x/branches/2.0/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/sca-java-2.x/branches/2.0/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());
+        }
+    }
+
+}
-- 
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