1 files changed, 92 insertions, 0 deletions
diff --git a/sandbox/amita/das/api/src/main/java/org/apache/tuscany/das/service/ServiceProvider.java b/sandbox/amita/das/api/src/main/java/org/apache/tuscany/das/service/ServiceProvider.java
new file mode 100644
index 0000000000..db3b92a238
--- /dev/null
+++ b/sandbox/amita/das/api/src/main/java/org/apache/tuscany/das/service/ServiceProvider.java
@@ -0,0 +1,92 @@
+/*
+ * 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.das.service;
+
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+
+import org.apache.tuscany.das.DASFactory;
+
+import sun.misc.Service;
+
+
+public class ServiceProvider {
+    private static final ServiceProvider instance = new ServiceProvider();
+    
+    protected ServiceProvider() {
+
+    }
+    
+    public static ServiceProvider getInstance(){
+        return instance;
+    }
+    
+    public static DASFactory getDASFactory(){
+    	try{
+            Iterator ps = ServiceLoader.providers(DASFactory.class);
+            while(ps.hasNext()){
+            	String className = (String) ps.next();
+                DASFactory factory = (DASFactory) Class.forName(className).newInstance();
+                System.out.println( factory.getClass().getName() );
+                return factory;
+            }    		
+    	}catch(Exception e){
+    		e.printStackTrace();
+    		return null;	
+    	}
+    	return null;
+    }
+
+    public static void Something(){
+    	//Second, try to find a service by using the JDK1.3 jar
+        // discovery mechanism. This will allow users to plug a logger
+        // by just placing it in the lib/ directory of the webapp ( or in
+        // CLASSPATH or equivalent ). This is similar with the second
+        // step, except that it uses the (standard?) jdk1.3 location in the jar.
+
+        Iterator ps = Service.providers(DASFactory.class);
+        while(ps.hasNext()){
+            DASFactory factory = (DASFactory) ps.next();
+            System.out.println( factory.getClass().getName());
+        }
+    }
+    
+    public static void Anotherthing() throws Exception{
+    	//Second, try to find a service by using the JDK1.3 jar
+        // discovery mechanism. This will allow users to plug a logger
+        // by just placing it in the lib/ directory of the webapp ( or in
+        // CLASSPATH or equivalent ). This is similar with the second
+        // step, except that it uses the (standard?) jdk1.3 location in the jar.
+
+        Iterator ps = ServiceLoader.providers(DASFactory.class);
+        while(ps.hasNext()){
+            String className = (String) ps.next();
+            DASFactory factory = (DASFactory) Class.forName(className).newInstance();
+            System.out.println( factory.getClass().getName() );
+        }
+    }
+    
+    public static void main(String[] args) throws Exception{
+        //DASFactory factory = ServiceProvider.getInstance().getFactory(Implementation.LDAP);
+        //ServiceProvider.Something();
+        //ServiceProvider.Anotherthing();
+    	ServiceProvider.getDASFactory();
+    }
+}