Make the virtualnetwork's GET method return tuple of the port's logical name and

host's mac address

src/main/java/net/floodlightcontroller/virtualnetwork/VirtualNetwork.java

@@ -16,9 +16,9 @@
 
 package net.floodlightcontroller.virtualnetwork;
 
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Iterator;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.concurrent.ConcurrentHashMap;
 import com.fasterxml.jackson.databind.annotation.JsonSerialize;
 
 import net.floodlightcontroller.util.MACAddress;
@@ -35,8 +35,7 @@ public class VirtualNetwork{
     protected String name; // network name
     protected String guid; // network id
     protected String gateway; // network gateway
-    protected Collection<MACAddress> hosts; // array of hosts explicitly added to this network
-
+	protected Map<String,MACAddress> portToMac; //port's logical namd and the host's mac address connected
     /**
      * Constructor requires network name and id
      * @param name: network name
@@ -46,7 +45,7 @@ public class VirtualNetwork{
         this.name = name;
         this.guid = guid;
         this.gateway = null;
-        this.hosts = new ArrayList<MACAddress>();
+		this.portToMac = new ConcurrentHashMap<String,MACAddress>();
         return;        
     }
 
@@ -72,8 +71,8 @@ public class VirtualNetwork{
      * Adds a host to this network record
      * @param host: MAC address as MACAddress
      */
-    public void addHost(MACAddress host){
-        this.hosts.add(host);
+    public void addHost(String port,MACAddress host){
+        this.portToMac.put(port,host); // ignore old mapping
         return;        
     }
     
@@ -83,22 +82,19 @@ public class VirtualNetwork{
      * @return boolean: true: removed, false: host not found
      */
     public boolean removeHost(MACAddress host){
-        Iterator<MACAddress> iter = this.hosts.iterator();
-        while(iter.hasNext()){
-            MACAddress element = iter.next();
-            if(element.equals(host) ){
-                //assuming MAC address for host is unique
-                iter.remove();
-                return true;
-            }                
-        }
-        return false;
+		for (Entry<String,MACAddress> entry : this.portToMac.entrySet()){
+			if(entry.getValue().equals(host)){
+				this.portToMac.remove(entry.getKey());
+				return true;
+			}
+		}
+		return false;
     }
     
     /**
      * Removes all hosts from this network record
      */
     public void clearHosts(){
-        this.hosts.clear();
+		this.portToMac.clear();
     }
-}
+}
\ No newline at end of file

src/main/java/net/floodlightcontroller/virtualnetwork/VirtualNetworkFilter.java

@@ -235,7 +235,7 @@ public class VirtualNetworkFilter
             macToGuid.put(mac, guid);
             portToMac.put(port, mac);
             if(vNetsByGuid.get(guid)!=null)
-                vNetsByGuid.get(guid).addHost(new MACAddress(mac.toBytes()));
+                vNetsByGuid.get(guid).addHost(port,new MACAddress(mac.toBytes()));
         } else {
             log.warn("Could not add MAC {} to network ID {} on port {}, the network does not exist",
                      new Object[] {mac, guid, port});

src/main/java/net/floodlightcontroller/virtualnetwork/VirtualNetworkSerializer.java

@@ -18,6 +18,7 @@ package net.floodlightcontroller.virtualnetwork;
 
 import java.io.IOException;
 import java.util.Iterator;
+import java.util.Map.Entry;
 
 import net.floodlightcontroller.util.MACAddress;
 
@@ -42,10 +43,15 @@ public class VirtualNetworkSerializer extends JsonSerializer<VirtualNetwork> {
         jGen.writeStringField("guid", vNet.guid);
         jGen.writeStringField("gateway", vNet.gateway);
 
-        jGen.writeArrayFieldStart("mac");
-        Iterator<MACAddress> hit = vNet.hosts.iterator();
-        while (hit.hasNext())
-            jGen.writeString(hit.next().toString());
+        jGen.writeArrayFieldStart("portMac");
+		Iterator entries = vNet.portToMac.entrySet().iterator();
+		while (entries.hasNext()){
+			jGen.writeStartObject();
+			Entry entry = (Entry)entries.next();
+			jGen.writeStringField("port",entry.getKey().toString());
+			jGen.writeStringField("mac",entry.getValue().toString());
+			jGen.writeEndObject();
+		}
         jGen.writeEndArray();
         
         jGen.writeEndObject();

src/test/java/net/floodlightcontroller/virtualnetwork/VirtualNetworkFilterTest.java

@@ -240,7 +240,7 @@ public class VirtualNetworkFilterTest extends FloodlightTestCase {
         assertTrue(vns.vNetsByGuid.get(guid1).name.equals(net1));
         assertTrue(vns.vNetsByGuid.get(guid1).guid.equals(guid1));
         assertTrue(vns.vNetsByGuid.get(guid1).gateway.equals(gw1));
-        assertTrue(vns.vNetsByGuid.get(guid1).hosts.size()==0);
+        assertTrue(vns.vNetsByGuid.get(guid1).portToMac.size()==0);
 
         // Test creating network without a gateway
         vns.createNetwork(guid2, net2, null);
@@ -250,7 +250,7 @@ public class VirtualNetworkFilterTest extends FloodlightTestCase {
         assertTrue(vns.vNetsByGuid.get(guid2).name.equals(net2));
         assertTrue(vns.vNetsByGuid.get(guid2).guid.equals(guid2));
         assertTrue(vns.vNetsByGuid.get(guid2).gateway == null);
-        assertTrue(vns.vNetsByGuid.get(guid2).hosts.size()==0);
+        assertTrue(vns.vNetsByGuid.get(guid2).portToMac.size()==0);
 
         // Test creating a network that shares the gateway with net1
         vns.createNetwork(guid3, net3, IPv4.toIPv4Address(gw1));
@@ -262,7 +262,7 @@ public class VirtualNetworkFilterTest extends FloodlightTestCase {
         assertTrue(vns.vNetsByGuid.get(guid3).name.equals(net3));
         assertTrue(vns.vNetsByGuid.get(guid3).guid.equals(guid3));
         assertTrue(vns.vNetsByGuid.get(guid3).gateway.equals(gw1));
-        assertTrue(vns.vNetsByGuid.get(guid3).hosts.size()==0);
+        assertTrue(vns.vNetsByGuid.get(guid3).portToMac.size()==0);
 
     }
 
@@ -310,14 +310,14 @@ public class VirtualNetworkFilterTest extends FloodlightTestCase {
         vns.addHost(mac1, guid1, hostPort1);
         assertTrue(vns.macToGuid.get(mac1).equals(guid1));
         assertTrue(vns.portToMac.get(hostPort1).equals(mac1));
-        assertTrue(vns.vNetsByGuid.get(guid1).hosts.contains(mac1));
+        assertTrue(vns.vNetsByGuid.get(guid1).portToMac.containsValue(mac1));
         vns.addHost(mac2, guid1, hostPort2);
         assertTrue(vns.macToGuid.get(mac2).equals(guid1));
         assertTrue(vns.portToMac.get(hostPort2).equals(mac2));
-        assertTrue(vns.vNetsByGuid.get(guid1).hosts.contains(mac2));
+        assertTrue(vns.vNetsByGuid.get(guid1).portToMac.containsValue(mac2));
         vns.addHost(mac3, guid3, hostPort3);
         vns.addHost(mac4, guid3, hostPort4);
-        assertTrue(vns.vNetsByGuid.get(guid3).hosts.contains(mac4));
+        assertTrue(vns.vNetsByGuid.get(guid3).portToMac.containsValue(mac4));
     }
 
     @Test
@@ -328,19 +328,19 @@ public class VirtualNetworkFilterTest extends FloodlightTestCase {
         vns.deleteHost(mac1, null);
         assertFalse(vns.macToGuid.containsKey(mac1));
         assertFalse(vns.portToMac.containsKey(hostPort1));
-        assertFalse(vns.vNetsByGuid.get(host1Guid).hosts.contains(mac1));
+        assertFalse(vns.vNetsByGuid.get(host1Guid).portToMac.containsValue(mac1));
 
         String host2Guid = vns.macToGuid.get(vns.portToMac.get(hostPort2));
         vns.deleteHost(null, hostPort2);
         assertFalse(vns.macToGuid.containsKey(mac2));
         assertFalse(vns.portToMac.containsKey(hostPort2));
-        assertFalse(vns.vNetsByGuid.get(host2Guid).hosts.contains(mac2));
+        assertFalse(vns.vNetsByGuid.get(host2Guid).portToMac.containsValue(mac2));
 
         String host3Guid = vns.macToGuid.get(mac3);
         vns.deleteHost(mac3, hostPort3);
         assertFalse(vns.macToGuid.containsKey(mac3));
         assertFalse(vns.portToMac.containsKey(hostPort3));
-        assertFalse(vns.vNetsByGuid.get(host3Guid).hosts.contains(mac3));
+        assertFalse(vns.vNetsByGuid.get(host3Guid).portToMac.containsValue(mac3));
 
     }