looking at the practicalities of running 1.x and 2.x runtimes in the same JVM. Doesn't do anything interesting yet.

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@835512 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 131 insertions, 0 deletions

diff --git a/sandbox/slaws/runtimecompat/combinedlauncher/src/main/java/launcher/CombinedLauncher.java b/sandbox/slaws/runtimecompat/combinedlauncher/src/main/java/launcher/CombinedLauncher.java
new file mode 100644
index 0000000000..f21284716f
--- /dev/null
+++ b/sandbox/slaws/runtimecompat/combinedlauncher/src/main/java/launcher/CombinedLauncher.java
@@ -0,0 +1,131 @@
+/*
+ * 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 launcher;
+
+import java.lang.reflect.Array;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Method;
+import java.net.URL;
+import java.util.HashSet;
+import java.util.Set;
+
+import org.apache.tuscany.sca.node.equinox.launcher.EquinoxHost;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleContext;
+
+
+public class CombinedLauncher {
+	
+	private static final String TWO_X_NODE_LAUNCHER_EQUINOX_BUNDLE = "org.apache.tuscany.sca.node.launcher.equinox";
+	private static final String TWO_X_NODE_LAUNCHER_UTIL = "org.apache.tuscany.sca.node.equinox.launcher.NodeLauncherUtil";
+	private static final String TWO_X_CONTRIBUTION = "org.apache.tuscany.sca.node.equinox.launcher.Contribution";
+	
+	private static final String TWO_X_NODE_API_BUNDLE = "org.apache.tuscany.sca.node.api";
+	private static final String TWO_X_NODE = "org.apache.tuscany.sca.node.Node";
+
+    public static void main(String[] args) throws Exception {
+    	// fire up the equinox host for the core set of Tuscany bundles
+    	// enough to run the calculator sample
+    	
+    	// set TUSCANY_HOME environment variable to get 
+    	// equinox host to load all the 2.x Tuscany 
+    	// bundles + dependencies
+    	// Hack so that I don't have to remember to 
+    	// set the environment variable. Don't do this at home
+        System.setProperty("TUSCANY_HOME", 
+        		           "../../../java-2.x/distribution/all/target/apache-tuscany-sca-all-2.0-SNAPSHOT-dir/tuscany-sca-2.0-SNAPSHOT");
+    	EquinoxHost equinoxHost = new EquinoxHost();
+        BundleContext bundleContext = equinoxHost.start();
+        
+        // need to add in the 1.x bundle(s) also
+        // TODO
+        
+        // load 2xcalculator?
+        // find the the 2.x node launcher util 
+        // Get the node runtime bundle.
+        Bundle bundle = null;
+        for (Bundle b : bundleContext.getBundles()) {
+            if (TWO_X_NODE_LAUNCHER_EQUINOX_BUNDLE.equals(b.getSymbolicName())) {
+                bundle = b;
+                break;
+            }
+        }
+        if (bundle == null) {
+            throw new IllegalStateException("Bundle " + TWO_X_NODE_LAUNCHER_EQUINOX_BUNDLE + " is not installed");
+        }
+        
+        // All this reflection not strictly needed given the current 
+        // module dependencies. Just experimenting
+        Class<?> contributionClass = bundle.loadClass(TWO_X_CONTRIBUTION);
+        Constructor<?> constructor = contributionClass.getConstructor(String.class, String.class);
+        
+        Class<?> bootstrapClass = bundle.loadClass(TWO_X_NODE_LAUNCHER_UTIL);
+        Class<?> contributionArrayClass = Array.newInstance(contributionClass, 0).getClass();
+        Method nodeMethod = bootstrapClass.getMethod("node", String.class, String.class, String.class, contributionArrayClass, BundleContext.class);
+        
+        bundle = null;
+        for (Bundle b : bundleContext.getBundles()) {
+            if (TWO_X_NODE_API_BUNDLE.equals(b.getSymbolicName())) {
+                bundle = b;
+                break;
+            }
+        }
+        if (bundle == null) {
+            throw new IllegalStateException("Bundle " + TWO_X_NODE_API_BUNDLE + " is not installed");
+        }
+        
+        Class<?> nodeClass = bundle.loadClass(TWO_X_NODE);
+        Method startMethod = nodeClass.getMethod("start");
+        
+        String configurationURI = null;
+        String compositeURI = null;
+        String compositeContent = null;
+        Object contribution = constructor.newInstance("calculator", "../2xcalculator.jar");
+        Object[] contributions = (Object[])Array.newInstance(contributionClass, 1);
+        contributions[0] = contribution;
+        
+        Object node = nodeMethod.invoke(null, 
+        		                        configurationURI,
+        		                        compositeURI,
+        		                        compositeContent,
+        		                        contributionArrayClass.cast(contributions),
+        		                        bundleContext);
+        
+        startMethod.invoke(node);
+        
+        System.out.println("2.x Started");
+        
+    	// load 1xcalculator?
+        // find the the 1.x node launcher
+        
+    	
+    	
+/*    	
+        Node node = NodeFactory.newInstance().createNode("Calculator.composite", 
+                new Contribution("calculator", "../2xcalculator.jar"));
+
+        node.start();
+        node.stop();
+*/
+        equinoxHost.stop();
+    }
+    
+
+}