Index: C:/Naidu/Projects/eclipse/june_policy_workspace/apache/imperius-javaspl/src/main/java/org/apache/imperius/javaspl/Java_SPLPolicyRuleProvider.java
===================================================================
--- C:/Naidu/Projects/eclipse/june_policy_workspace/apache/imperius-javaspl/src/main/java/org/apache/imperius/javaspl/Java_SPLPolicyRuleProvider.java	(revision 669817)
+++ C:/Naidu/Projects/eclipse/june_policy_workspace/apache/imperius-javaspl/src/main/java/org/apache/imperius/javaspl/Java_SPLPolicyRuleProvider.java	(working copy)
@@ -17,16 +17,13 @@
  * under the License.  
  */
 
-
 /**
  * @author Prashant Baliga <prabalig@in.ibm.com>
  *
  */
 
-
 package org.apache.imperius.javaspl;
 
-
 import java.util.List;
 import java.util.Map;
 
@@ -38,120 +35,129 @@
 import org.apache.imperius.spl.parser.exceptions.SPLException;
 import org.apache.imperius.spl.parser.util.InternalClientFactory;
 
+public class Java_SPLPolicyRuleProvider {
 
+	private PolicyManager _policyManager = null;
+	
+	private static Java_SPLPolicyRuleProvider javaSPLPolicyRuleProvider = null;
+	
+	private Java_SPLPolicyRuleProvider() throws SPLException {
+		initialize();
+	}
+	
+	public static synchronized Java_SPLPolicyRuleProvider getInstance() throws SPLException {
+		
+		if(javaSPLPolicyRuleProvider == null) {
+			
+			javaSPLPolicyRuleProvider = new Java_SPLPolicyRuleProvider();
+		}
+		
+		return javaSPLPolicyRuleProvider;
+	}
 
+//	public Java_SPLPolicyRuleProvider() throws SPLException {
+//		initialize();
+//	}
 
+	public void cleanup() throws SPLException {
 
-public class Java_SPLPolicyRuleProvider 
-{
+	}
 
-    
-    private PolicyManager _policyManager= null;
-    
-    
-    public Java_SPLPolicyRuleProvider() throws SPLException
-    {
-        initialize();
-        
-    }
-    
-    public void cleanup() throws SPLException {
-        
-        
-        
-    }
+	public void initialize() throws SPLException {
 
-    public void initialize() throws SPLException
-    {
-     
-        
-        DataCollector dc = new JavaDataCollectorImpl();
-        Actuator ac = new JavaActuatorImpl();
-        
-        
-        _policyManager= new PolicyManagerImpl(dc,ac);
-        
-        // registering internal client
-        InternalClient oInternalClientObj = new InternalClient(_policyManager);
-        InternalClientFactory.registerInternalClient(oInternalClientObj);
-            
-        
-    }
+		DataCollector dc = new JavaDataCollectorImpl();
+		Actuator ac = new JavaActuatorImpl();
+		_policyManager = new PolicyManagerImpl(dc, ac);
 
+		// registering internal client
+		InternalClient oInternalClientObj = new InternalClient(_policyManager);
+		InternalClientFactory.registerInternalClient(oInternalClientObj);
 
-    public boolean createPolicy(String name, String policyString) throws SPLException 
-    {
-        
-        boolean result = _policyManager.createPolicy(name,policyString);
-       
-        return result;
-    }
-    
-    public boolean validatePolicyString(String policyString) throws SPLException 
-    {
-        
-        boolean result = _policyManager.validatePolicyString(policyString);
-       
-        return result;
-    }
+	}
 
-    public void deletePolicy(String name) throws SPLException 
-    {
-        
-        _policyManager.deletePolicy(name);
-        
-        return;
-    }
+	public boolean createPolicy(String name, String policyString)
+			throws SPLException {
 
-    public List enumeratePolicyNames() throws SPLException 
-    {
+		boolean result = _policyManager.createPolicy(name, policyString);
 
-        List policyNames = _policyManager.getAllPolicyNames();
-        
-        return policyNames;
-    }
+		return result;
+	}
 
-    public Map enumeratePolicies() throws SPLException 
-    {
+	public boolean validatePolicyString(String policyString)
+			throws SPLException {
 
-        Map policyInstances = _policyManager.getAllPolicies();
-        
-        return policyInstances;
+		boolean result = _policyManager.validatePolicyString(policyString);
 
-    }
+		return result;
+	}
 
-    
-    public String getPolicy(String policyName) throws SPLException 
-    {
+	public void deletePolicy(String name) throws SPLException {
 
-        String policy = _policyManager.getPolicy(policyName);
-        
-        return policy;
+		_policyManager.deletePolicy(name);
 
-    }
+		return;
+	}
 
-    public void modifyPolicy(String name, String policyString) throws SPLException {
+	public List enumeratePolicyNames() throws SPLException {
 
-        
-        _policyManager.updatePolicy(name,policyString);
-        
+		List policyNames = _policyManager.getAllPolicyNames();
 
-    }
+		return policyNames;
+	}
 
-    public Object executePolicy(String policyName, Map instanceObjectMap) throws SPLException 
-    {
-     
-        
-        Object retVal = _policyManager.evaluatePolicy(policyName,instanceObjectMap);
-    
-        
-        return retVal;
-    }
-    
-    public static void main(String [] args)
-    {
-        
+	public Map enumeratePolicies() throws SPLException {
 
-    }
+		Map policyInstances = _policyManager.getAllPolicies();
 
+		return policyInstances;
+
+	}
+
+	public String getPolicy(String policyName) throws SPLException {
+
+		String policy = _policyManager.getPolicy(policyName);
+
+		return policy;
+
+	}
+
+	public void modifyPolicy(String name, String policyString)
+			throws SPLException {
+
+		_policyManager.updatePolicy(name, policyString);
+
+	}
+
+	public Object executePolicy(String policyName, Map instanceObjectMap)
+			throws SPLException {
+
+		Object retVal = _policyManager.evaluatePolicy(policyName,
+				instanceObjectMap);
+
+		return retVal;
+	}
+	
+	
+	public boolean isPolicyExists(String policyName) {
+		boolean returnFlag = false;
+		try
+		{
+			List policyNamesList = _policyManager.getAllPolicyNames();
+			if(policyNamesList != null && policyNamesList.size() > 0)
+			{
+				if(policyNamesList.contains(policyName)) {
+					returnFlag = true;
+				}
+			}
+		} catch(SPLException splex) {
+			
+		}
+		return returnFlag;
+	}
+	
+
+	public static void main(String[] args) {
+
+	}
+
 }