[POLICY-22] Reorganizing drools-apps

Change-Id: I5f9bb3908f8d55c466dd847ae5e01a424e9ba364
Signed-off-by: Gao, Chenfei (cg287m) <chenfei.gao11@gmail.com>
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>

14 files changed, 1544 insertions, 0 deletions

diff --git a/controlloop/common/guard/src/main/java/org/onap/policy/guard/CallGuardTask.java b/controlloop/common/guard/src/main/java/org/onap/policy/guard/CallGuardTask.java
new file mode 100644
index 000000000..af81a3610
--- /dev/null
+++ b/controlloop/common/guard/src/main/java/org/onap/policy/guard/CallGuardTask.java
@@ -0,0 +1,99 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * guard
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+
+package org.onap.policy.guard;
+
+import com.att.research.xacml.api.DataTypeException;
+import com.att.research.xacml.api.pdp.PDPEngine;
+import com.att.research.xacml.std.annotations.RequestParser;
+import java.util.UUID;
+
+import org.drools.core.WorkingMemory;
+
+
+public class CallGuardTask implements Runnable {
+	
+	WorkingMemory workingMemory;
+	PDPEngine embeddedPdpEngine;
+	String restfulPdpUrl;
+	String actor;
+	String recipe;
+	String target;
+	String requestId;
+	
+    public CallGuardTask(PDPEngine engine, String url, WorkingMemory wm, String act, String rec, String tar, String reqId) { 
+    
+    	embeddedPdpEngine = engine; 
+    	restfulPdpUrl = url;
+    	workingMemory = wm;
+    	actor = act;
+    	recipe = rec;
+    	requestId = reqId;
+    	target = tar;
+    }
+    public void run() {
+    	long startTime = System.nanoTime();
+    	com.att.research.xacml.api.Request request = null;
+    	
+    	PolicyGuardXacmlRequestAttributes xacmlReq = new PolicyGuardXacmlRequestAttributes(actor,  recipe, target, requestId);
+    	
+    	try {
+    		request = RequestParser.parseRequest(xacmlReq);
+		} catch (IllegalArgumentException | IllegalAccessException | DataTypeException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		} 
+    	/*
+    	try {
+			Thread.sleep(2000);
+		} catch (InterruptedException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+		*/
+		
+  		System.out.println("\n********** XACML REQUEST START ********");
+		System.out.println(request);
+		System.out.println("********** XACML REQUEST END ********\n");
+		
+		com.att.research.xacml.api.Response xacmlResponse = PolicyGuardXacmlHelper.callPDP(embeddedPdpEngine, "", request, false);
+		
+		System.out.println("\n********** XACML RESPONSE START ********");
+		System.out.println(xacmlResponse);
+		System.out.println("********** XACML RESPONSE END ********\n");
+						
+		PolicyGuardResponse guardResponse = PolicyGuardXacmlHelper.ParseXacmlPdpResponse(xacmlResponse);
+		
+		//
+		//Create an artificial Guard response in case we didn't get a clear Permit or Deny
+		//
+		if(guardResponse.result.equals("Indeterminate")){
+			guardResponse.operation = recipe;
+			guardResponse.requestID = UUID.fromString(requestId);
+		}
+		
+		long estimatedTime = System.nanoTime() - startTime;
+		System.out.println("\n\n============ Guard inserted with decision "+ guardResponse.result + " !!! =========== time took: " +(double)estimatedTime/1000/1000 +" mili sec \n\n");
+		workingMemory.insert(guardResponse);
+
+    }
+
+}
diff --git a/controlloop/common/guard/src/main/java/org/onap/policy/guard/GuardResult.java b/controlloop/common/guard/src/main/java/org/onap/policy/guard/GuardResult.java
new file mode 100644
index 000000000..4afd16dab
--- /dev/null
+++ b/controlloop/common/guard/src/main/java/org/onap/policy/guard/GuardResult.java
@@ -0,0 +1,28 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * guard
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.policy.guard;
+
+public enum GuardResult {
+	LOCK_ACQUIRED,
+	LOCK_DENIED,
+	LOCK_EXCEPTION
+	;
+
+}
diff --git a/controlloop/common/guard/src/main/java/org/onap/policy/guard/LockCallback.java b/controlloop/common/guard/src/main/java/org/onap/policy/guard/LockCallback.java
new file mode 100644
index 000000000..0a1255d33
--- /dev/null
+++ b/controlloop/common/guard/src/main/java/org/onap/policy/guard/LockCallback.java
@@ -0,0 +1,28 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * guard
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.policy.guard;
+
+public interface LockCallback {
+	
+	public boolean	isActive();
+	
+	public boolean	releaseLock();
+
+}
diff --git a/controlloop/common/guard/src/main/java/org/onap/policy/guard/PIPEngineGetHistory.java b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PIPEngineGetHistory.java
new file mode 100644
index 000000000..99775dc3d
--- /dev/null
+++ b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PIPEngineGetHistory.java
@@ -0,0 +1,352 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * guard
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.guard;
+
+import java.math.BigInteger;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Properties;
+import java.util.Set;
+
+import javax.persistence.EntityManager;
+import javax.persistence.Persistence;
+import javax.persistence.Query;
+
+import com.att.research.xacml.api.pip.PIPException;
+import com.att.research.xacml.api.pip.PIPFinder;
+import com.att.research.xacml.api.pip.PIPRequest;
+import com.att.research.xacml.api.pip.PIPResponse;
+import com.att.research.xacml.std.IdentifierImpl;
+import com.att.research.xacml.std.StdMutableAttribute;
+import com.att.research.xacml.std.pip.StdMutablePIPResponse;
+import com.att.research.xacml.std.pip.StdPIPRequest;
+import com.att.research.xacml.std.pip.StdPIPResponse;
+import com.att.research.xacml.std.pip.engines.StdConfigurableEngine;
+import com.att.research.xacml.api.Attribute;
+import com.att.research.xacml.api.AttributeValue;
+import com.att.research.xacml.api.Identifier;
+import com.att.research.xacml.std.datatypes.DataTypes;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+
+
+public class PIPEngineGetHistory extends StdConfigurableEngine{
+
+	private Log logger							= LogFactory.getLog(this.getClass());
+	
+	//private static EntityManager em;
+	
+	public static final String DEFAULT_DESCRIPTION		= "PIP for retrieving Operations History from DB";
+	
+	//
+	// Base issuer string. The issuer in the policy will also contain time window information
+	// E.g., "com:att:research:xacml:guard:historydb:tw:10:min"
+	//
+	public static final String DEFAULT_ISSUER			= "com:att:research:xacml:guard:historydb";
+
+	
+	private static final PIPRequest PIP_REQUEST_ACTOR	= new StdPIPRequest(
+					new IdentifierImpl("urn:oasis:names:tc:xacml:1.0:subject-category:access-subject"), 
+					new IdentifierImpl("urn:oasis:names:tc:xacml:1.0:actor:actor-id"), 
+					new IdentifierImpl("http://www.w3.org/2001/XMLSchema#string"));
+	
+	private static final PIPRequest PIP_REQUEST_RECIPE		= new StdPIPRequest(
+					new IdentifierImpl("urn:oasis:names:tc:xacml:3.0:attribute-category:action"), 
+					new IdentifierImpl("urn:oasis:names:tc:xacml:1.0:operation:operation-id"), 
+					new IdentifierImpl("http://www.w3.org/2001/XMLSchema#string"));
+	
+	private static final PIPRequest PIP_REQUEST_TARGET		= new StdPIPRequest(
+			new IdentifierImpl("urn:oasis:names:tc:xacml:3.0:attribute-category:resource"), 
+			new IdentifierImpl("urn:oasis:names:tc:xacml:1.0:target:target-id"), 
+			new IdentifierImpl("http://www.w3.org/2001/XMLSchema#string"));
+
+	
+	private void addIntegerAttribute(StdMutablePIPResponse stdPIPResponse, Identifier category, Identifier attributeId, int value, PIPRequest pipRequest) {
+		AttributeValue<BigInteger> attributeValue	= null;
+		try {
+			attributeValue	= DataTypes.DT_INTEGER.createAttributeValue(value);
+		} catch (Exception ex) {
+			this.logger.error("Failed to convert " + value + " to an AttributeValue<Boolean>", ex);
+		}
+		if (attributeValue != null) {
+			stdPIPResponse.addAttribute(new StdMutableAttribute(category, attributeId, attributeValue, pipRequest.getIssuer()/*this.getIssuer()*/, false));
+		}
+	}
+
+	
+	
+	public PIPEngineGetHistory() {
+		super();
+		
+		System.out.println("HAHAHAHAHAHAHAHAHAHAHAHAHAHAHA");
+		
+		// TODO Auto-generated constructor stub
+	}
+	
+	
+
+	@Override
+	public Collection<PIPRequest> attributesRequired() {
+		// TODO Auto-generated method stub
+		System.out.println("DADADADADADADADADADADADADA");
+		return null;
+	}
+
+	@Override
+	public Collection<PIPRequest> attributesProvided() {
+		// TODO Auto-generated method stub
+		System.out.println("GAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAG");
+		return null;
+	}
+
+	@Override
+	public PIPResponse getAttributes(PIPRequest pipRequest, PIPFinder pipFinder) throws PIPException {
+		// TODO Auto-generated method stub
+		System.out.println("MAMAMAMAMAMAMAMAMAMAMAMAMA - Entering FeqLimiter PIP!!!");
+		
+		/*
+		 * First check to see if the issuer is set and then match it
+		 */
+		String string;
+		if ((string = pipRequest.getIssuer()) == null) {
+			this.logger.debug("No issuer in the request...");
+			System.out.println("MAMAMAMAMAMAMAMAMAMAMAMAMA - FeqLimiter PIP - No issuer in the request!!!");
+			return StdPIPResponse.PIP_RESPONSE_EMPTY;
+		}
+		else{
+			//Notice, we are checking here for the base issuer prefix.
+			if (!string.contains(this.getIssuer())) {
+				this.logger.debug("Requested issuer '" + string + "' does not match " + (this.getIssuer() == null ? "null" : "'" + this.getIssuer() + "'"));
+				System.out.println("MAMAMAMAMAMAMAMAMAMAMAMAMA - FeqLimiter PIP - Issuer "+ string +" does not match with: "+this.getIssuer());
+				return StdPIPResponse.PIP_RESPONSE_EMPTY;
+			}
+		}
+		
+		String[] s1 = string.split("tw:");
+		String[] s2 = s1[1].split(":");
+		String timeWindowVal = s2[0];// number [of minutes, hours, days...]
+		String timeWindowScale = s2[1];//e.g., minute, hour, day, week, month, year
+		
+		//System.out.println("MAMAMAMAMAMAMAMAMAMAMAMAMA - FeqLimiter PIP - Issuer " + string + " is OK - proceeding with the request!!!");
+		//System.out.println("MAMAMAMAMAMAMAMAMAMAMAMAMA - FeqLimiter PIP - TimeWindow: " + timeWindowVal + " " + timeWindowScale);
+
+		String actor = getActor(pipFinder).iterator().next();
+		String operation = getRecipe(pipFinder).iterator().next();
+		String target = getTarget(pipFinder).iterator().next();
+	
+		String timeWindow = timeWindowVal + " " + timeWindowScale;
+		
+		System.out.println("Going to query DB about: "+actor + " " + operation + " " + target + " " + timeWindow);
+		int countFromDB = getCountFromDB(actor, operation, target, timeWindow);
+		 
+		
+		StdMutablePIPResponse stdPIPResponse	= new StdMutablePIPResponse();
+		
+		this.addIntegerAttribute(stdPIPResponse,
+				new IdentifierImpl("urn:oasis:names:tc:xacml:3.0:attribute-category:resource"), 
+				new IdentifierImpl("com:att:research:xacml:test:sql:resource:operations:count"), 
+				countFromDB,
+				pipRequest);
+		
+		return new StdPIPResponse(stdPIPResponse);
+	}
+	
+	
+	@Override
+	public void configure(String id, Properties properties) throws PIPException {
+		super.configure(id, properties);
+		//System.out.println("MAMAMAMAMAMAMAMAMAMAMAMAMA - Configuring FeqLimiter PIP!!!");
+		if (this.getDescription() == null) {
+			this.setDescription(DEFAULT_DESCRIPTION);
+		}
+		if (this.getIssuer() == null) {
+			this.setIssuer(DEFAULT_ISSUER);
+		}
+		/*
+		try{
+			em = Persistence.createEntityManagerFactory("OperationsHistoryPU").createEntityManager();//emf.createEntityManager();
+		}catch(Exception e){
+			System.err.println("Freq limiter PIP got Exception " + e.getLocalizedMessage() + " Can't connect to Operations History DB.");
+			return;
+		}
+		*/
+		
+	}
+
+	
+	
+	private PIPResponse getAttribute(PIPRequest pipRequest, PIPFinder pipFinder) {
+		PIPResponse pipResponse	= null;
+
+		try {
+			pipResponse	= pipFinder.getMatchingAttributes(pipRequest, this);
+			if (pipResponse.getStatus() != null && !pipResponse.getStatus().isOk()) {
+				System.out.println("Error retrieving " + pipRequest.getAttributeId().stringValue() + ": " + pipResponse.getStatus().toString());
+				pipResponse	= null;
+			}
+			if (pipResponse.getAttributes().size() == 0) {
+				System.out.println("No value for " + pipRequest.getAttributeId().stringValue());
+				pipResponse	= null;
+			}
+		} catch (PIPException ex) {
+			System.out.println("PIPException getting subject-id attribute: " + ex.getMessage());			
+		}
+		return pipResponse;
+	}
+	
+	
+	private Set<String> getActor(PIPFinder pipFinder) {
+		/*
+		 * Get the AT&T UID from either the subject id or the attuid property
+		 */
+		PIPResponse pipResponseATTUID	= this.getAttribute(PIP_REQUEST_ACTOR, pipFinder);
+		if (pipResponseATTUID == null) {
+			return null;
+		}
+		
+		/*
+		 * Iterate over all of the returned results and do the LDAP requests
+		 */
+		Collection<Attribute> listATTUIDs	= pipResponseATTUID.getAttributes();
+		Set<String> setATTUIDs			= new HashSet<String>();
+		for (Attribute attributeATTUID: listATTUIDs) {
+			Iterator<AttributeValue<String>> iterAttributeValues	= attributeATTUID.findValues(DataTypes.DT_STRING);
+			if (iterAttributeValues != null) {
+				while (iterAttributeValues.hasNext()) {
+					String attuid	= iterAttributeValues.next().getValue();
+					if (attuid != null) {
+						setATTUIDs.add(attuid);
+					}
+				}
+			}
+		}
+		
+		return setATTUIDs;
+	}
+
+	private Set<String> getRecipe(PIPFinder pipFinder) {
+		/*
+		 * Get the AT&T UID from either the subject id or the attuid property
+		 */
+		PIPResponse pipResponseATTUID	= this.getAttribute(PIP_REQUEST_RECIPE, pipFinder);
+		if (pipResponseATTUID == null) {
+			return null;
+		}
+		
+		/*
+		 * Iterate over all of the returned results and do the LDAP requests
+		 */
+		Collection<Attribute> listATTUIDs	= pipResponseATTUID.getAttributes();
+		Set<String> setATTUIDs			= new HashSet<String>();
+		for (Attribute attributeATTUID: listATTUIDs) {
+			Iterator<AttributeValue<String>> iterAttributeValues	= attributeATTUID.findValues(DataTypes.DT_STRING);
+			if (iterAttributeValues != null) {
+				while (iterAttributeValues.hasNext()) {
+					String attuid	= iterAttributeValues.next().getValue();
+					if (attuid != null) {
+						setATTUIDs.add(attuid);
+					}
+				}
+			}
+		}
+		
+		return setATTUIDs;
+	}
+	
+	
+	private Set<String> getTarget(PIPFinder pipFinder) {
+		/*
+		 * Get the AT&T UID from either the subject id or the attuid property
+		 */
+		PIPResponse pipResponseATTUID	= this.getAttribute(PIP_REQUEST_TARGET, pipFinder);
+		if (pipResponseATTUID == null) {
+			return null;
+		}
+		
+		/*
+		 * Iterate over all of the returned results and do the LDAP requests
+		 */
+		Collection<Attribute> listATTUIDs	= pipResponseATTUID.getAttributes();
+		Set<String> setATTUIDs			= new HashSet<String>();
+		for (Attribute attributeATTUID: listATTUIDs) {
+			Iterator<AttributeValue<String>> iterAttributeValues	= attributeATTUID.findValues(DataTypes.DT_STRING);
+			if (iterAttributeValues != null) {
+				while (iterAttributeValues.hasNext()) {
+					String attuid	= iterAttributeValues.next().getValue();
+					if (attuid != null) {
+						setATTUIDs.add(attuid);
+					}
+				}
+			}
+		}
+		
+		return setATTUIDs;
+	}
+	
+	private static int getCountFromDB(String actor, String operation, String target, String timeWindow){
+		
+		long startTime = System.nanoTime();
+	
+		
+		
+		EntityManager em;
+		try{
+			em = Persistence.createEntityManagerFactory("OperationsHistoryPU").createEntityManager();//emf.createEntityManager();
+		}catch(Exception e){
+			System.err.println("Test thread got Exception " + e.getLocalizedMessage() + " Can't write to Operations History DB.");
+			return -1;
+		}
+		
+		
+		//em.getTransaction().begin();
+		String sql = "select count(*) as count from operationshistory10 where outcome<>'Failure_Guard' and actor='"
+				+ actor
+				+ "' and operation='"
+				+ operation
+				+ "' and target='"
+				+ target
+				+ "' "
+				+ "and endtime between date_sub(now(),interval "
+				+ timeWindow
+				+ ") and now()";
+		
+		Query nq = em.createNativeQuery(sql);
+		
+		int ret = ((Number)nq.getSingleResult()).intValue();
+
+		System.out.println("###########************** History count: " + ret);
+		
+		//em.getTransaction().commit();
+		long estimatedTime = System.nanoTime() - startTime;
+		System.out.println("time took: " + (double)estimatedTime/1000/1000 + " mili sec.");
+
+		em.close();
+		
+		return ret;
+		
+		
+	
+	}
+
+
+}
diff --git a/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuard.java b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuard.java
new file mode 100644
index 000000000..b4aee2fda
--- /dev/null
+++ b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuard.java
@@ -0,0 +1,114 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * guard
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.policy.guard;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+import org.onap.policy.controlloop.policy.TargetType;
+import org.onap.policy.guard.impl.PNFTargetLock;
+import org.onap.policy.guard.impl.VMTargetLock;
+
+public class PolicyGuard {
+
+	private static Map<String, TargetLock> activeLocks = new HashMap<String, TargetLock>();
+		
+	public static class LockResult<A, B> {
+		private A a;
+		private B b;
+		
+		public static <A, B> LockResult<A, B> createLockResult(A a, B b) {
+			return new LockResult<A, B>(a, b);
+		}
+		
+		public LockResult(A a, B b) {
+			this.a = a;
+			this.b = b;
+		}
+		
+		public A getA() {
+			return a;
+		}
+		
+		public B getB() {
+			return b;
+		}
+	}
+	
+	public static LockResult<GuardResult, TargetLock> lockTarget(TargetType targetType, String targetInstance, UUID requestID, LockCallback callback) {
+		
+		synchronized(activeLocks) {
+			//
+			// Is there a lock on this instance already?
+			//
+			if (activeLocks.containsKey(targetInstance)) {
+				return LockResult.createLockResult(GuardResult.LOCK_DENIED, null);
+			}
+			TargetLock lock = null;
+			switch (targetType) {
+			case PNF:
+				//
+				// Create the Lock object
+				//
+				lock = new PNFTargetLock(targetType, targetInstance, requestID, callback);
+				break;
+			case VM:
+				//
+				// Create the Lock object
+				//
+				lock = new VMTargetLock(targetType, targetInstance, requestID, callback);
+				break;
+			default:
+				return LockResult.createLockResult(GuardResult.LOCK_EXCEPTION, null);
+			}
+			//
+			// Keep track of it
+			//
+			activeLocks.put(targetInstance, lock);
+			//
+			// Return result
+			//
+			System.out.println("Locking " + lock);
+			return LockResult.createLockResult(GuardResult.LOCK_ACQUIRED, lock);
+		}
+	}
+	
+	public static boolean	unlockTarget(TargetLock lock) {
+		synchronized(activeLocks) {
+			if (activeLocks.containsKey(lock.getTargetInstance())) {
+				System.out.println("Unlocking " + lock);
+				return (activeLocks.remove(lock.getTargetInstance()) != null);
+			}
+			return false;
+		}
+	}
+	
+	public static boolean	isLocked(TargetType targetType, String targetInstance, UUID requestID) {
+		synchronized(activeLocks) {
+			if (activeLocks.containsKey(targetInstance)) {
+				TargetLock lock = activeLocks.get(targetInstance);
+				return (lock.getTargetType().equals(targetType) && lock.getRequestID().equals(requestID));
+			}
+			return false;
+		}		
+	}
+	
+}
diff --git a/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuardRequest.java b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuardRequest.java
new file mode 100644
index 000000000..04732dc36
--- /dev/null
+++ b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuardRequest.java
@@ -0,0 +1,46 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * guard
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.guard;
+
+import java.util.UUID;
+
+public class PolicyGuardRequest{
+
+	public PolicyGuardRequest(String actor, String target, UUID requestID, String operation) {
+		super();
+		this.actor = actor;
+		this.target = target;
+		this.requestID = requestID;
+		this.operation = operation;
+	}
+	public String actor;
+	public String target;
+	public UUID requestID;
+	public String operation;
+	
+	
+	@Override
+	public String toString() {
+		return "PolicyGuardRequest [actor=" + actor + ", target=" + target + ", requestID=" + requestID + ", operation="
+				+ operation + "]";
+	}
+	
+}
\ No newline at end of file
diff --git a/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuardResponse.java b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuardResponse.java
new file mode 100644
index 000000000..20bbc2eb6
--- /dev/null
+++ b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuardResponse.java
@@ -0,0 +1,56 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * guard
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.guard;
+
+import java.util.UUID;
+
+public class PolicyGuardResponse{
+	public PolicyGuardResponse(String string, UUID req, String op) {
+		this.result = string;
+		this.requestID = req;
+		this.operation = op;
+	}
+	public UUID requestID;
+	public String operation;
+	public String result;
+	
+	
+	
+	
+	
+	@Override
+	public String toString() {
+		return "PolicyGuardResponse [requestID=" + requestID + ", operation=" + operation + ", result=" + result + "]";
+	}
+	public UUID getRequestID() {
+		return requestID;
+	}
+	public void setRequestID(UUID requestID) {
+		this.requestID = requestID;
+	}
+	public String getResult() {
+		return result;
+	}
+	public void setResult(String result) {
+		this.result = result;
+	}
+	
+}
\ No newline at end of file
diff --git a/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuardXacmlHelper.java b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuardXacmlHelper.java
new file mode 100644
index 000000000..66d2f288e
--- /dev/null
+++ b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuardXacmlHelper.java
@@ -0,0 +1,204 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * guard
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.guard;
+
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.Iterator;
+import java.util.UUID;
+
+import org.apache.commons.io.IOUtils;
+import org.apache.http.entity.ContentType;
+//import org.openecomp.policy.appc.Response;
+
+import com.att.research.xacml.api.Attribute;
+import com.att.research.xacml.api.AttributeCategory;
+import com.att.research.xacml.api.AttributeValue;
+import com.att.research.xacml.api.Result;
+import com.att.research.xacml.api.pdp.PDPEngine;
+import com.att.research.xacml.api.pdp.PDPException;
+import com.att.research.xacml.std.dom.DOMResponse;
+import com.att.research.xacml.std.json.JSONRequest;
+import com.att.research.xacml.std.json.JSONResponse;
+
+
+public class PolicyGuardXacmlHelper {
+	
+	
+
+	public static com.att.research.xacml.api.Response callPDP(PDPEngine xacmlEmbeddedPdpEngine, String restfulPdpUrl, com.att.research.xacml.api.Request request, boolean isREST) {
+		//
+		// Send it to the PDP
+		//
+		com.att.research.xacml.api.Response response = null;
+		if (isREST) {
+			try {
+				String jsonString = JSONRequest.toString((com.att.research.xacml.api.Request) request, false);
+				//
+				// Call RESTful PDP
+				//
+				response = (com.att.research.xacml.api.Response) callRESTfulPDP(new ByteArrayInputStream(jsonString.getBytes()), new URL(restfulPdpUrl/*"https://localhost:8443/pdp/"*/));
+			} catch (Exception e) {
+				System.err.println("Error in sending RESTful request: " + e);
+			}
+		} else if(xacmlEmbeddedPdpEngine != null){
+			//
+			// Embedded call to PDP
+			//
+			long lTimeStart = System.currentTimeMillis();
+			try {
+				response = (com.att.research.xacml.api.Response) xacmlEmbeddedPdpEngine.decide((com.att.research.xacml.api.Request) request);
+			} catch (PDPException e) {
+				System.err.println(e);
+			}
+			long lTimeEnd = System.currentTimeMillis();
+			System.out.println("Elapsed Time: " + (lTimeEnd - lTimeStart) + "ms");
+		}
+		return response;
+	}
+	
+	
+	/**
+	 * This makes an HTTP POST call to a running PDP RESTful servlet to get a decision.
+	 * 
+	 * @param file
+	 * @return
+	 */
+	private static com.att.research.xacml.api.Response callRESTfulPDP(InputStream is, URL restURL) {
+		com.att.research.xacml.api.Response response = null;
+		HttpURLConnection connection = null;
+		try {
+
+			//
+			// Open up the connection
+			//
+			connection = (HttpURLConnection) restURL.openConnection();
+			connection.setRequestProperty("Content-Type", "application/json");
+			//
+			// Setup our method and headers
+			//
+            connection.setRequestMethod("POST");
+            connection.setUseCaches(false);
+            //
+            // Adding this in. It seems the HttpUrlConnection class does NOT
+            // properly forward our headers for POST re-direction. It does so
+            // for a GET re-direction.
+            //
+            // So we need to handle this ourselves.
+            //
+            connection.setInstanceFollowRedirects(false);
+			connection.setDoOutput(true);
+			connection.setDoInput(true);
+			//
+			// Send the request
+			//
+			try (OutputStream os = connection.getOutputStream()) {
+				IOUtils.copy(is, os);
+			}
+            //
+            // Do the connect
+            //
+            connection.connect();
+            if (connection.getResponseCode() == 200) {
+            	//
+            	// Read the response
+            	//
+        		ContentType contentType = null;
+        		try {
+        			contentType = ContentType.parse(connection.getContentType());
+        			
+        			if (contentType.getMimeType().equalsIgnoreCase(ContentType.APPLICATION_JSON.getMimeType())) {
+                		response = (com.att.research.xacml.api.Response) JSONResponse.load(connection.getInputStream());
+        			} else if (contentType.getMimeType().equalsIgnoreCase(ContentType.APPLICATION_XML.getMimeType()) ||
+        					contentType.getMimeType().equalsIgnoreCase("application/xacml+xml") ) {
+                		response = (com.att.research.xacml.api.Response) DOMResponse.load(connection.getInputStream());
+        			} else {
+        				System.err.println("unknown content-type: " + contentType);
+                	}
+
+                } catch (Exception e) {
+        			String message = "Parsing Content-Type: " + connection.getContentType() + ", error=" + e.getMessage();
+        			System.err.println(message);
+        		}
+
+            } else {
+            	System.err.println(connection.getResponseCode() + " " + connection.getResponseMessage());
+            }
+		} catch (Exception e) {
+			System.err.println(e);
+		}
+		
+		return response;
+	}
+	
+	
+	public static PolicyGuardResponse ParseXacmlPdpResponse(com.att.research.xacml.api.Response xacmlResponse){
+		
+		if(xacmlResponse == null){
+			
+			//
+			//In case the actual XACML response was null, create an empty response object with decision "Indeterminate"
+			//
+			return new PolicyGuardResponse("Indeterminate", null, "");
+		}
+		
+		Iterator<Result> it_res = xacmlResponse.getResults().iterator();
+		
+		Result res	= it_res.next();
+		String decision_from_xacml_response = res.getDecision().toString();
+		Iterator<AttributeCategory> it_attr_cat = res.getAttributes().iterator();
+		UUID req_id_from_xacml_response = null;
+		String operation_from_xacml_response = "";
+		
+		while(it_attr_cat.hasNext()){
+			Iterator<Attribute>  it_attr = it_attr_cat.next().getAttributes().iterator();
+			while(it_attr.hasNext()){
+				Attribute current_attr = it_attr.next();
+				String s = current_attr.getAttributeId().stringValue();
+				//System.out.println("ATTR ID = " + s);
+				if(s.equals("urn:oasis:names:tc:xacml:1.0:request:request-id")){
+					Iterator<AttributeValue<?>> it_values = current_attr.getValues().iterator();
+					req_id_from_xacml_response = UUID.fromString(it_values.next().getValue().toString());
+					//System.out.println("UUID = " + req_id_from_xacml_response);
+				}
+				if(s.equals("urn:oasis:names:tc:xacml:1.0:operation:operation-id")){
+					Iterator<AttributeValue<?>> it_values = current_attr.getValues().iterator();
+					operation_from_xacml_response = it_values.next().getValue().toString();
+					//System.out.println("OPERATION = " + operation_from_xacml_response);
+				}
+				
+			}
+		}
+		
+		
+		
+		
+		
+		return new PolicyGuardResponse(decision_from_xacml_response, req_id_from_xacml_response, operation_from_xacml_response);
+		
+	}
+	
+	
+	
+}
diff --git a/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuardXacmlRequestAttributes.java b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuardXacmlRequestAttributes.java
new file mode 100644
index 000000000..4abb70f84
--- /dev/null
+++ b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuardXacmlRequestAttributes.java
@@ -0,0 +1,127 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * guard
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.guard;
+
+
+import com.att.research.xacml.std.annotations.XACMLAction;
+import com.att.research.xacml.std.annotations.XACMLRequest;
+import com.att.research.xacml.std.annotations.XACMLResource;
+import com.att.research.xacml.std.annotations.XACMLSubject;
+
+
+
+@XACMLRequest(ReturnPolicyIdList=true,CombinedDecision=true)
+public class PolicyGuardXacmlRequestAttributes {
+
+		
+		
+
+		public PolicyGuardXacmlRequestAttributes(String actor_id, String operation_id, String target_id,
+				String request_id) {
+			super();
+			this.actor_id = actor_id;
+			this.operation_id = operation_id;
+			this.target_id = target_id;
+			this.request_id = request_id;
+		}
+
+
+
+		@Override
+		public String toString() {
+			return "PolicyGuardXacmlRequestAttributes [actor_id=" + actor_id + ", operation_id=" + operation_id
+					+ ", target_id=" + target_id + ", request_id=" + request_id + "]";
+		}
+
+
+
+		//@XACMLSubject(includeInResults=true, attributeId="urn:oasis:names:tc:xacml:1.0:subject:subject-id")
+		//String	userID;
+		
+		//@XACMLAction()
+		//String	action;
+		
+		@XACMLSubject(includeInResults=true, attributeId="urn:oasis:names:tc:xacml:1.0:actor:actor-id")
+		String	actor_id;
+		
+		@XACMLAction(includeInResults=true, attributeId="urn:oasis:names:tc:xacml:1.0:operation:operation-id")
+		String	operation_id;
+		
+		//@XACMLResource(includeInResults=true, attributeId="urn:oasis:names:tc:xacml:1.0:resource:resource-id123")
+		//String	resource;
+		
+		@XACMLResource(includeInResults=true, attributeId="urn:oasis:names:tc:xacml:1.0:target:target-id")
+		String	target_id;
+		
+		@XACMLResource(includeInResults=true, attributeId="urn:oasis:names:tc:xacml:1.0:request:request-id")
+		String	request_id;
+
+		public String getActor_id() {
+			return actor_id;
+		}
+
+
+
+		public void setActor_id(String actor_id) {
+			this.actor_id = actor_id;
+		}
+
+
+
+		public String getOperation_id() {
+			return operation_id;
+		}
+
+
+
+		public void setOperation_id(String operation_id) {
+			this.operation_id = operation_id;
+		}
+
+
+
+		public String getTarget_id() {
+			return target_id;
+		}
+
+
+
+		public void setTarget_id(String target_id) {
+			this.target_id = target_id;
+		}
+
+
+
+		public String getRequest_id() {
+			return request_id;
+		}
+
+
+
+		public void setRequest_id(String request_id) {
+			this.request_id = request_id;
+		}
+		
+		
+		
+		
+	};
+
diff --git a/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuardYamlToXacml.java b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuardYamlToXacml.java
new file mode 100644
index 000000000..b9a7881b6
--- /dev/null
+++ b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PolicyGuardYamlToXacml.java
@@ -0,0 +1,198 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * guard
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.guard;
+
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.List;
+import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.onap.policy.controlloop.policy.guard.ControlLoopGuard;
+
+
+public class PolicyGuardYamlToXacml {
+	
+	
+	public static void fromYamlToXacml(String yamlFile, String xacmlTemplate, String xacmlPolicyOutput){
+		
+		ControlLoopGuard yamlGuardObject = Util.loadYamlGuard(yamlFile);
+		System.out.println("actor: " + yamlGuardObject.guards.getFirst().actor);
+		System.out.println("recipe: " + yamlGuardObject.guards.getFirst().recipe);
+		System.out.println("num: " + yamlGuardObject.guards.getFirst().limit_constraints.getFirst().num);
+		System.out.println("duration: " + yamlGuardObject.guards.getFirst().limit_constraints.getFirst().duration);
+		System.out.println("time_in_range: " + yamlGuardObject.guards.getFirst().limit_constraints.getFirst().time_in_range);
+		
+		Path xacmlTemplatePath = Paths.get(xacmlTemplate);
+        String xacmlTemplateContent;
+		
+        try {
+			xacmlTemplateContent = new String(Files.readAllBytes(xacmlTemplatePath));
+			
+	        String xacmlPolicyContent = generateXacmlGuard(xacmlTemplateContent,
+	        		yamlGuardObject.guards.getFirst().actor,
+	        		yamlGuardObject.guards.getFirst().recipe,
+	        		yamlGuardObject.guards.getFirst().limit_constraints.getFirst().num,
+	        		yamlGuardObject.guards.getFirst().limit_constraints.getFirst().duration,
+	        		yamlGuardObject.guards.getFirst().limit_constraints.getFirst().time_in_range.get("arg2"),
+	        		yamlGuardObject.guards.getFirst().limit_constraints.getFirst().time_in_range.get("arg3")
+	        		);
+	        
+	
+	        Files.write(Paths.get(xacmlPolicyOutput), xacmlPolicyContent.getBytes());
+        
+		} catch (IOException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+		
+	}
+	
+	
+	
+	public static String	generateXacmlGuard(String xacmlFileContent, 
+			String actor, 
+			String recipe, 
+			Integer limit,
+			Map<String,String> timeWindow,
+			String guardActiveStart, 
+			String guardActiveEnd) {
+
+		Pattern p = Pattern.compile("\\$\\{actor\\}");
+		Matcher m = p.matcher(xacmlFileContent);
+		xacmlFileContent = m.replaceAll(actor);
+
+		p = Pattern.compile("\\$\\{recipe\\}");
+		m = p.matcher(xacmlFileContent);
+		xacmlFileContent = m.replaceAll(recipe);
+
+		p = Pattern.compile("\\$\\{limit\\}");
+		m = p.matcher(xacmlFileContent);
+		xacmlFileContent = m.replaceAll(limit.toString());
+		
+		
+		//p = Pattern.compile("\\$\\{timeWindow\\}");
+		//m = p.matcher(xacmlFileContent);
+		//xacmlFileContent = m.replaceAll("tw"+timeWindow);
+		
+		p = Pattern.compile("\\$\\{twValue\\}");
+		m = p.matcher(xacmlFileContent);
+		xacmlFileContent = m.replaceAll(timeWindow.get("value"));
+		
+		p = Pattern.compile("\\$\\{twUnits\\}");
+		m = p.matcher(xacmlFileContent);
+		xacmlFileContent = m.replaceAll(timeWindow.get("units"));
+		
+
+		p = Pattern.compile("\\$\\{guardActiveStart\\}");
+		m = p.matcher(xacmlFileContent);
+		xacmlFileContent = m.replaceAll(guardActiveStart);
+
+		p = Pattern.compile("\\$\\{guardActiveEnd\\}");
+		m = p.matcher(xacmlFileContent);
+		xacmlFileContent = m.replaceAll(guardActiveEnd);
+		System.out.println(xacmlFileContent);
+
+		return xacmlFileContent;
+	}
+	
+
+	
+	public static void fromYamlToXacmlBlacklist(String yamlFile, String xacmlTemplate, String xacmlPolicyOutput){
+		
+		ControlLoopGuard yamlGuardObject = Util.loadYamlGuard(yamlFile);
+		System.out.println("actor: " + yamlGuardObject.guards.getFirst().actor);
+		System.out.println("recipe: " + yamlGuardObject.guards.getFirst().recipe);
+		System.out.println("num: " + yamlGuardObject.guards.getFirst().limit_constraints.getFirst().num);
+		System.out.println("duration: " + yamlGuardObject.guards.getFirst().limit_constraints.getFirst().duration);
+		System.out.println("time_in_range: " + yamlGuardObject.guards.getFirst().limit_constraints.getFirst().time_in_range);
+		
+		Path xacmlTemplatePath = Paths.get(xacmlTemplate);
+        String xacmlTemplateContent;
+		
+        try {
+			xacmlTemplateContent = new String(Files.readAllBytes(xacmlTemplatePath));
+			
+	        String xacmlPolicyContent = generateXacmlGuardBlacklist(xacmlTemplateContent,
+	        		yamlGuardObject.guards.getFirst().actor,
+	        		yamlGuardObject.guards.getFirst().recipe,
+	        		yamlGuardObject.guards.getFirst().limit_constraints.getFirst().blacklist,
+	        		yamlGuardObject.guards.getFirst().limit_constraints.getFirst().time_in_range.get("arg2"),
+	        		yamlGuardObject.guards.getFirst().limit_constraints.getFirst().time_in_range.get("arg3")
+	        		);
+	        
+	
+	        Files.write(Paths.get(xacmlPolicyOutput), xacmlPolicyContent.getBytes());
+        
+		} catch (IOException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+		
+	}
+	
+	public static String	generateXacmlGuardBlacklist(String xacmlFileContent, 
+			String actor, 
+			String recipe, 
+			List<String> blacklist,
+			String guardActiveStart, 
+			String guardActiveEnd) {
+
+		Pattern p = Pattern.compile("\\$\\{actor\\}");
+		Matcher m = p.matcher(xacmlFileContent);
+		xacmlFileContent = m.replaceAll(actor);
+
+		p = Pattern.compile("\\$\\{recipe\\}");
+		m = p.matcher(xacmlFileContent);
+		xacmlFileContent = m.replaceAll(recipe);
+		
+		p = Pattern.compile("\\$\\{guardActiveStart\\}");
+		m = p.matcher(xacmlFileContent);
+		xacmlFileContent = m.replaceAll(guardActiveStart);
+
+		p = Pattern.compile("\\$\\{guardActiveEnd\\}");
+		m = p.matcher(xacmlFileContent);
+		xacmlFileContent = m.replaceAll(guardActiveEnd);
+		System.out.println(xacmlFileContent);
+		
+		for(String target : blacklist){
+			p = Pattern.compile("\\$\\{blackListElement\\}");
+			m = p.matcher(xacmlFileContent);
+			xacmlFileContent = m.replaceAll("<AttributeValue DataType=\"http://www.w3.org/2001/XMLSchema#string\">" 
+											+ target
+											+ "</AttributeValue>"
+											+ "\n\t\t\t\t\t\t\\$\\{blackListElement\\}");
+		}
+		
+		p = Pattern.compile("\t\t\t\t\t\t\\$\\{blackListElement\\}\n");
+		m = p.matcher(xacmlFileContent);
+		xacmlFileContent = m.replaceAll("");
+		
+		
+		return xacmlFileContent;
+	}
+	
+	
+}
diff --git a/controlloop/common/guard/src/main/java/org/onap/policy/guard/TargetLock.java b/controlloop/common/guard/src/main/java/org/onap/policy/guard/TargetLock.java
new file mode 100644
index 000000000..f2e4f0ae2
--- /dev/null
+++ b/controlloop/common/guard/src/main/java/org/onap/policy/guard/TargetLock.java
@@ -0,0 +1,37 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * guard
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.guard;
+
+import java.util.UUID;
+
+import org.onap.policy.controlloop.policy.TargetType;
+
+public interface TargetLock {
+	
+	public UUID		getLockID();
+	
+	public TargetType	getTargetType();
+	
+	public String	getTargetInstance();
+	
+	public UUID		getRequestID();
+
+}
diff --git a/controlloop/common/guard/src/main/java/org/onap/policy/guard/Util.java b/controlloop/common/guard/src/main/java/org/onap/policy/guard/Util.java
new file mode 100644
index 000000000..702f27ccb
--- /dev/null
+++ b/controlloop/common/guard/src/main/java/org/onap/policy/guard/Util.java
@@ -0,0 +1,91 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * guard
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.guard;
+
+import static org.junit.Assert.fail;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+
+import org.apache.commons.io.IOUtils;
+import org.yaml.snakeyaml.Yaml;
+import org.yaml.snakeyaml.constructor.Constructor;
+
+import org.onap.policy.controlloop.policy.ControlLoopPolicy;
+import org.onap.policy.controlloop.policy.guard.ControlLoopGuard;
+
+
+public final class Util {
+
+	public static class Pair<A, B> {
+		public final A a;
+		public final B b;
+		
+		public Pair(A a, B b) {
+			this.a = a;
+			this.b = b;
+		}
+	}
+	
+	public static Pair<ControlLoopPolicy, String>	loadYaml(String testFile) {
+		try (InputStream is = new FileInputStream(new File(testFile))) {
+			String contents = IOUtils.toString(is, StandardCharsets.UTF_8);
+			//
+			// Read the yaml into our Java Object
+			//
+			Yaml yaml = new Yaml(new Constructor(ControlLoopPolicy.class));
+			Object obj = yaml.load(contents);
+			
+			//String ttt = ((ControlLoopPolicy)obj).policies.getFirst().payload.get("asdas");
+			System.out.println(contents);
+			//for(Policy policy : ((ControlLoopPolicy)obj).policies){
+			
+			return new Pair<ControlLoopPolicy, String>((ControlLoopPolicy) obj, contents);
+		} catch (FileNotFoundException e) {
+			fail(e.getLocalizedMessage());
+		} catch (IOException e) {
+			fail(e.getLocalizedMessage());
+		}
+		return null;
+	}
+	
+	public static ControlLoopGuard	loadYamlGuard(String testFile) {
+		try (InputStream is = new FileInputStream(new File(testFile))) {
+			String contents = IOUtils.toString(is, StandardCharsets.UTF_8);
+			//
+			// Read the yaml into our Java Object
+			//
+			Yaml yaml = new Yaml(new Constructor(ControlLoopGuard.class));
+			Object obj = yaml.load(contents);
+			return (ControlLoopGuard) obj;
+		} catch (FileNotFoundException e) {
+			fail(e.getLocalizedMessage());
+		} catch (IOException e) {
+			fail(e.getLocalizedMessage());
+		}
+		return null;
+	}
+
+}
diff --git a/controlloop/common/guard/src/main/java/org/onap/policy/guard/impl/PNFTargetLock.java b/controlloop/common/guard/src/main/java/org/onap/policy/guard/impl/PNFTargetLock.java
new file mode 100644
index 000000000..ea966ea55
--- /dev/null
+++ b/controlloop/common/guard/src/main/java/org/onap/policy/guard/impl/PNFTargetLock.java
@@ -0,0 +1,84 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * guard
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.guard.impl;
+
+import java.io.Serializable;
+import java.util.UUID;
+
+import org.onap.policy.controlloop.policy.TargetType;
+import org.onap.policy.guard.LockCallback;
+import org.onap.policy.guard.TargetLock;
+
+public class PNFTargetLock implements TargetLock, Serializable {
+
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = 2335897394577202732L;
+	
+	private final UUID		lockID;
+	private final TargetType 	targetType;
+	private final String 	target;
+	private final UUID 		requestID;
+	private final LockCallback callback;
+
+	public PNFTargetLock (TargetType type, String target, UUID requestID, LockCallback callback) {
+		this.lockID = UUID.randomUUID();
+		this.targetType = type;
+		this.target = target;
+		this.requestID = requestID;
+		this.callback = callback;
+	}
+
+	@Override
+	public UUID		getLockID() {
+		return this.lockID;
+	}
+	
+	
+	@Override
+	public TargetType getTargetType() {
+		return targetType;
+	}
+
+	@Override
+	public String getTargetInstance() {
+		return target;
+	}
+
+	@Override
+	public UUID getRequestID() {
+		return this.requestID;
+	}
+
+	public LockCallback getCallback() {
+		return this.callback;
+	}
+
+	@Override
+	public String toString() {
+		return "PNFTargetLock [lockID=" + lockID + ", targetType=" + targetType + ", target=" + target + ", requestID="
+				+ requestID + "]";
+	}
+
+	
+
+}
diff --git a/controlloop/common/guard/src/main/java/org/onap/policy/guard/impl/VMTargetLock.java b/controlloop/common/guard/src/main/java/org/onap/policy/guard/impl/VMTargetLock.java
new file mode 100644
index 000000000..1de105ce4
--- /dev/null
+++ b/controlloop/common/guard/src/main/java/org/onap/policy/guard/impl/VMTargetLock.java
@@ -0,0 +1,80 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * guard
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.guard.impl;
+
+import java.io.Serializable;
+import java.util.UUID;
+
+import org.onap.policy.controlloop.policy.TargetType;
+import org.onap.policy.guard.LockCallback;
+import org.onap.policy.guard.TargetLock;
+
+public class VMTargetLock implements TargetLock, Serializable {
+	
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = -8795145054334409724L;
+	private final UUID		lockID;
+	private final TargetType 	targetType;
+	private final String 	target;
+	private final UUID 		requestID;
+	private final LockCallback callback;
+
+	public VMTargetLock(TargetType targetType, String target, UUID requestID, LockCallback callback) {
+		this.lockID = UUID.randomUUID();
+		this.targetType = targetType;
+		this.target = target;
+		this.requestID = requestID;
+		this.callback = callback;
+	}
+
+	@Override
+	public UUID		getLockID() {
+		return this.lockID;
+	}
+	
+	@Override
+	public TargetType getTargetType() {
+		return targetType;
+	}
+
+	@Override
+	public String getTargetInstance() {
+		return target;
+	}
+	
+	@Override
+	public UUID getRequestID() {
+		return this.requestID;
+	}
+
+	public LockCallback getCallback() {
+		return this.callback;
+	}
+
+	@Override
+	public String toString() {
+		return "VMTargetLock [lockID=" + lockID + ", targetType=" + targetType + ", target=" + target + ", requestID="
+				+ requestID + "]";
+	}
+
+}