From fd34d4342b95600825720708d7ff6917bba1ee42 Mon Sep 17 00:00:00 2001
From: lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>
Date: Wed, 27 Jan 2010 09:41:44 +0000
Subject: Java SCA 1.6 RC1 Release Tag

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@903579 13f79535-47bb-0310-9956-ffa450edef68
---
 .../src/main/java/supplychain/OSGiBundleImpl.java  | 121 +++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 sca-java-1.x/tags/1.6-RC1/samples/osgi-supplychain/src/main/java/supplychain/OSGiBundleImpl.java

(limited to 'sca-java-1.x/tags/1.6-RC1/samples/osgi-supplychain/src/main/java/supplychain/OSGiBundleImpl.java')

diff --git a/sca-java-1.x/tags/1.6-RC1/samples/osgi-supplychain/src/main/java/supplychain/OSGiBundleImpl.java b/sca-java-1.x/tags/1.6-RC1/samples/osgi-supplychain/src/main/java/supplychain/OSGiBundleImpl.java
new file mode 100644
index 0000000000..5f40054ada
--- /dev/null
+++ b/sca-java-1.x/tags/1.6-RC1/samples/osgi-supplychain/src/main/java/supplychain/OSGiBundleImpl.java
@@ -0,0 +1,121 @@
+/*
+ * 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 supplychain;
+
+
+import java.lang.reflect.Field;
+import java.util.Hashtable;
+
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.ServiceEvent;
+import org.osgi.framework.ServiceListener;
+import org.osgi.framework.ServiceReference;
+
+
+/**
+ * Common code for all OSGi bundles which dont use declarative services.
+ * Registers services and sets references.
+ */
+public class OSGiBundleImpl implements ServiceListener, BundleActivator {
+    
+
+    String name;
+    String serviceName;
+    String[] references;
+    Class<?>[] referenceClasses;
+    Field[] referenceFields;
+    
+    Class myClass;
+    
+	private BundleContext bundleContext;
+    
+    public OSGiBundleImpl(String serviceName, String... references) {
+        
+        myClass = this.getClass();
+        this.name = this.getClass().getSimpleName();
+        this.serviceName = serviceName;
+        this.references = references;
+        
+        try {
+            referenceClasses = new Class[references.length];
+            referenceFields = new Field[references.length];
+            for (int i = 0; i < references.length; i++) {
+                referenceFields[i] = this.getClass().getDeclaredField(references[i]);
+                referenceFields[i].setAccessible(true);
+                referenceClasses[i] = referenceFields[i].getType();
+            }
+            
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+        
+    }
+    
+    public void start(BundleContext bc) {
+    	
+    	System.out.println("Started OSGi bundle with activator " + name);
+    	
+    	this.bundleContext = bc;
+    	
+        bundleContext.registerService(serviceName, this, new Hashtable());
+        
+        for (int i = 0; i < references.length; i++) {
+
+            try {
+                
+    	        ServiceReference ref = bundleContext.getServiceReference(referenceClasses[i].getName());
+	            if (ref != null) {
+                    Object obj = bundleContext.getService(ref);
+                    referenceFields[i].set(this, referenceClasses[i].cast(obj));
+                } else {
+				    String filter = "(objectclass=" + referenceClasses[i].getName() + ")";
+				    this.bundleContext.addServiceListener(this, filter);				
+	            }
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+    }
+    
+    public void stop(BundleContext bc)  {
+        System.out.println("Stop OSGi bundle with activator " + name);
+
+    }
+    
+
+	public void serviceChanged(ServiceEvent event) {
+		try {
+			if (event.getType() == ServiceEvent.REGISTERED) {
+                
+                ServiceReference ref = event.getServiceReference();
+                Object obj = bundleContext.getService(ref);
+                for (int i = 0; i < references.length; i++) {
+                    if (referenceClasses[i].isAssignableFrom(obj.getClass())) {
+                        referenceFields[i].set(this, referenceClasses[i].cast(obj));
+                    }
+                }
+			}
+		} catch (Throwable e) {
+			e.printStackTrace();
+		}
+	}
+    
+
+}
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