Added McastConnectPoint to track membership source
for egress ConnectPoints by STATIC config, PIM and
IGMP.

Change-Id: Ia913ee697e0cae32dd74db508e5ea2cba0d47c45
diff --git a/apps/mfwd/src/main/java/org/onosproject/mfwd/impl/McastConnectPoint.java b/apps/mfwd/src/main/java/org/onosproject/mfwd/impl/McastConnectPoint.java
new file mode 100644
index 0000000..e2a6ff0
--- /dev/null
+++ b/apps/mfwd/src/main/java/org/onosproject/mfwd/impl/McastConnectPoint.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * 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.
+ */
+package org.onosproject.mfwd.impl;
+
+import org.onosproject.net.ConnectPoint;
+import java.util.EnumSet;
+import java.util.Set;
+
+/**
+ * Mulitcast ConnectPoint adds a variable to track the usage
+ * of these multicast endpoints.
+ */
+public class McastConnectPoint {
+
+    private ConnectPoint connectPoint;
+
+    public enum JoinSource {
+        STATIC, IGMP, PIM;
+    }
+
+    public EnumSet<JoinSource> interest = EnumSet.noneOf(JoinSource.class);
+
+    public McastConnectPoint(ConnectPoint cp) {
+        this.connectPoint = cp;
+    }
+
+    public McastConnectPoint(ConnectPoint cp, JoinSource src) {
+        this.connectPoint = cp;
+        interest.add(src);
+    }
+
+    public McastConnectPoint(String connectPoint, JoinSource src) {
+        ConnectPoint cp = ConnectPoint.deviceConnectPoint(connectPoint);
+        this.connectPoint = cp;
+        this.interest.add(src);
+    }
+
+    /**
+     * Get the connect point.
+     *
+     * @return connectPoint
+     */
+    public ConnectPoint getConnectPoint() {
+        return connectPoint;
+    }
+
+    /**
+     * Get the sources of interest for this egressPoint.
+     *
+     * @return interest flags
+     */
+    public Set<JoinSource> getInterest() {
+        return interest;
+    }
+}