1 files changed, 81 insertions, 0 deletions
diff --git a/ONAP-XACML/src/main/java/org/onap/policy/xacml/std/pap/StdPDPItemSetChangeNotifier.java b/ONAP-XACML/src/main/java/org/onap/policy/xacml/std/pap/StdPDPItemSetChangeNotifier.java
new file mode 100644
index 000000000..d23501f26
--- /dev/null
+++ b/ONAP-XACML/src/main/java/org/onap/policy/xacml/std/pap/StdPDPItemSetChangeNotifier.java
@@ -0,0 +1,81 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP-XACML
+ * ================================================================================
+ * 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.xacml.std.pap;
+
+import java.util.Collection;
+import java.util.LinkedList;
+
+import org.onap.policy.xacml.api.pap.OnapPDP;
+import org.onap.policy.xacml.api.pap.OnapPDPGroup;
+
+public class StdPDPItemSetChangeNotifier {
+	
+	private Collection<StdItemSetChangeListener> listeners = null;
+	
+	public interface StdItemSetChangeListener {
+		
+		public void changed();
+		
+		public void groupChanged(OnapPDPGroup group);
+		
+		public void pdpChanged(OnapPDP pdp);
+
+	}
+	
+	public void addItemSetChangeListener(StdItemSetChangeListener listener) {
+		if (this.listeners == null) {
+			this.listeners = new LinkedList<StdItemSetChangeListener>();
+		}
+		this.listeners.add(listener);
+	}
+	
+	public void removeItemSetChangeListener(StdItemSetChangeListener listener) {
+		if (this.listeners != null) {
+			this.listeners.remove(listener);
+		}
+	}
+
+	public void fireChanged() {
+		if (this.listeners == null) {
+			return;
+		}
+		for (StdItemSetChangeListener l : this.listeners) {
+			l.changed();
+		}		
+	}
+
+	public void firePDPGroupChanged(OnapPDPGroup group) {
+		if (this.listeners == null) {
+			return;
+		}
+		for (StdItemSetChangeListener l : this.listeners) {
+			l.groupChanged(group);
+		}
+	}
+
+	public void firePDPChanged(OnapPDP pdp) {
+		if (this.listeners == null) {
+			return;
+		}
+		for (StdItemSetChangeListener l : this.listeners) {
+			l.pdpChanged(pdp);
+		}
+	}
+}