1 files changed, 92 insertions, 0 deletions
diff --git a/sandbox/amita/das/api/src/main/java/org/apache/tuscany/das/service/ServiceLoader.java b/sandbox/amita/das/api/src/main/java/org/apache/tuscany/das/service/ServiceLoader.java
new file mode 100644
index 0000000000..a84c386f6a
--- /dev/null
+++ b/sandbox/amita/das/api/src/main/java/org/apache/tuscany/das/service/ServiceLoader.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.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.util.Enumeration;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.log4j.*;
+/**
+ * This class loads services present in the class path.
+ */
+public class ServiceLoader {
+
+     private static Map providerMap = new java.util.Hashtable();
+     static Logger log = Logger.getLogger("ServiceLoader.class");
+     
+     public static synchronized Iterator providers(Class cls) {
+         ClassLoader cl = cls.getClassLoader();
+         // null if loaded by bootstrap class loader
+         if (cl == null) {
+             cl = ClassLoader.getSystemClassLoader();
+         }
+         String serviceFile = "META-INF/services/" + cls.getName();
+
+          log.debug("File: " + serviceFile);
+
+         List lst = (List)providerMap.get(serviceFile);
+         if (lst != null) {
+        	 log.debug("file in map returning ");
+             return lst.iterator();
+         }
+
+         lst = new java.util.Vector();
+         providerMap.put(serviceFile, lst);
+
+         //Enumeration e=null;
+         FileInputStream fis=null;
+         InputStream is = null;
+         try {
+        	 log.debug("getting resource");
+        	 is = cl.getResourceAsStream(serviceFile);
+        	 log.debug("is class "+is.getClass().getName());
+         }catch(Exception ex){
+        	 ex.printStackTrace();
+        	 log.debug("other exception");
+         }
+
+         log.debug("am here");
+         
+         if(is != null)
+        	 log.debug("found resource");
+         else
+        	 log.debug("not found resource");
+         
+         try {
+        	 byte[] byt=new byte[is.available()];
+        	 is.read(byt);
+        	 String line = new String(byt);
+        	 log.debug("Line: " + line);
+        	 lst.add(line);
+         }catch(Exception e){
+        	 e.printStackTrace();
+         }
+         return lst.iterator();
+     }
+ }