Created basic network graph objects, and implementation for the southbound API against the Ramcloud datastore

Change-Id: I2172dacb171f27ba2099ee5a52835030d2004689

Created basic objects and southbound API to build the network graph

Change-Id: I061efdf10e5e8549f7192844d10781dc28ee62d4

Added basic northbound get switch method on network graph

Change-Id: I4f2e4d4a4df00979abc927ef0772997dcdebc4e2
diff --git a/src/main/java/net/onrc/onos/ofcontroller/networkgraph/PortImpl.java b/src/main/java/net/onrc/onos/ofcontroller/networkgraph/PortImpl.java
new file mode 100644
index 0000000..d0b605d
--- /dev/null
+++ b/src/main/java/net/onrc/onos/ofcontroller/networkgraph/PortImpl.java
@@ -0,0 +1,59 @@
+package net.onrc.onos.ofcontroller.networkgraph;
+
+public class PortImpl extends NetworkGraphObject implements Port {
+	
+	//private long dpid;
+	private Switch sw;
+	private short number;
+
+	public PortImpl(NetworkGraph graph) {
+		super(graph);
+	}
+	
+	public void setPortNumber(short portNumber) {
+		number = portNumber;
+	}
+
+	@Override
+	public short getNumber() {
+		return number;
+	}
+	
+	/*
+	public void setDpid(long dpid) {
+		this.dpid = dpid;
+	}
+	
+	public long getDpid() {
+		return dpid;
+	}
+	*/
+
+	@Override
+	public String getName() {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public long getHardwareAddress() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+	
+	@Override
+	public Switch getSwitch() {
+		return sw;
+	}
+	
+	public void setSwitch(Switch sw) {
+		this.sw = sw;
+	}
+
+	@Override
+	public Link getLink() {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+}