Adding mfwd, igmp and mfwd apps

Change-Id: Ie7187716db36b754e4cd687a8f9de004e27c7825

adding mfwd, pim, igmp apps

Change-Id: Iddd2dcee24dc905d5ff0efe1d1d798fc83a7c736
diff --git a/apps/mfwd/src/main/java/org/onosproject/mfwd/impl/McastRouteSource.java b/apps/mfwd/src/main/java/org/onosproject/mfwd/impl/McastRouteSource.java
new file mode 100644
index 0000000..68edc2e
--- /dev/null
+++ b/apps/mfwd/src/main/java/org/onosproject/mfwd/impl/McastRouteSource.java
@@ -0,0 +1,48 @@
+/*
+ * 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 static com.google.common.base.Preconditions.checkNotNull;
+import org.onlab.packet.IpPrefix;
+
+/**
+ * This class represents and specific multicast senders source address.  Objects from
+ * this class will belong to the sources collection of the multicast group.
+ */
+public class McastRouteSource extends McastRouteBase {
+
+    // A reference to our parent group
+    private McastRouteGroup group;
+
+    /**
+     * Create a multicast source with IpPrefixes.
+     *
+     * @param source the source address
+     * @param group the group address
+     */
+    public McastRouteSource(IpPrefix source, IpPrefix group) {
+        super(checkNotNull(source), checkNotNull(group));
+    }
+
+    /**
+     * Set our parent multicast group.
+     *
+     * @param group the group this source belongs to
+     */
+    public void setGroup(McastRouteGroup group) {
+        this.group = group;
+    }
+}
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