diff --git a/src/main/java/net/floodlightcontroller/flowcache/web/AddFlowResource.java b/src/main/java/net/floodlightcontroller/flowcache/web/AddFlowResource.java
index 35367eb..f32d124 100644
--- a/src/main/java/net/floodlightcontroller/flowcache/web/AddFlowResource.java
+++ b/src/main/java/net/floodlightcontroller/flowcache/web/AddFlowResource.java
@@ -1,6 +1,8 @@
 package net.floodlightcontroller.flowcache.web;
 
 import net.floodlightcontroller.flowcache.IFlowService;
+import net.floodlightcontroller.util.FlowId;
+import net.floodlightcontroller.util.FlowPath;
 
 import org.restlet.resource.Get;
 import org.restlet.resource.ServerResource;
@@ -12,8 +14,8 @@
     protected static Logger log = LoggerFactory.getLogger(AddFlowResource.class);
 
     @Get("json")
-    public Boolean retrieve() {
-	Boolean result = false;
+    public FlowId retrieve() {
+	FlowId result = new FlowId();
 
         IFlowService flowService =
                 (IFlowService)getContext().getAttributes().
@@ -26,10 +28,13 @@
 
 	// Extract the arguments
 	String flowPathStr = (String) getRequestAttributes().get("flow");
+	FlowPath flowPath = new FlowPath(flowPathStr);
+
 	log.debug("Add Flow Path: " + flowPathStr);
 
-	// TODO: Implement it.
-	result = true;
+	if (flowService.addFlow(flowPath, result) != true) {
+	    result = new FlowId();	// Error: Empty Flow Id
+	}
 
         return result;
     }
diff --git a/src/main/java/net/floodlightcontroller/flowcache/web/DeleteFlowResource.java b/src/main/java/net/floodlightcontroller/flowcache/web/DeleteFlowResource.java
index f323a54..cefad18 100644
--- a/src/main/java/net/floodlightcontroller/flowcache/web/DeleteFlowResource.java
+++ b/src/main/java/net/floodlightcontroller/flowcache/web/DeleteFlowResource.java
@@ -1,6 +1,7 @@
 package net.floodlightcontroller.flowcache.web;
 
 import net.floodlightcontroller.flowcache.IFlowService;
+import net.floodlightcontroller.util.FlowId;
 
 import org.openflow.util.HexString;
 import org.restlet.resource.Get;
@@ -26,11 +27,11 @@
 
 	// Extract the arguments
 	String flowIdStr = (String) getRequestAttributes().get("flow-id");
-	long flowId = HexString.toLong(flowIdStr);
+	FlowId flowId = new FlowId(HexString.toLong(flowIdStr));
+
 	log.debug("Delete Flow Id: " + flowIdStr);
 
-	// TODO: Implement it.
-	result = true;
+	result = flowService.deleteFlow(flowId);
 
         return result;
     }
diff --git a/src/main/java/net/floodlightcontroller/flowcache/web/FlowWebRoutable.java b/src/main/java/net/floodlightcontroller/flowcache/web/FlowWebRoutable.java
index b1188c8..0859397 100644
--- a/src/main/java/net/floodlightcontroller/flowcache/web/FlowWebRoutable.java
+++ b/src/main/java/net/floodlightcontroller/flowcache/web/FlowWebRoutable.java
@@ -16,8 +16,8 @@
         router.attach("/add/{flow}/json", AddFlowResource.class);
         router.attach("/delete/{flow-id}/json", DeleteFlowResource.class);
         router.attach("/get/{flow-id}/json", GetFlowByIdResource.class);
-        router.attach("/get/{installer-id}/{data-path-endpoints}/json", GetFlowByInstallerIdResource.class);
-        router.attach("/getall/{data-path-endpoints}/json", GetAllFlowsByEndpointsResource.class);
+        router.attach("/get/{installer-id}/{src-dpid}/{src-port}/{dst-dpid}/{dst-port}/json", GetFlowByInstallerIdResource.class);
+        router.attach("/getall/{src-dpid}/{src-port}/{dst-dpid}/{dst-port}/json", GetAllFlowsByEndpointsResource.class);
         router.attach("/getall/json", GetAllFlowsResource.class);
         return router;
     }
diff --git a/src/main/java/net/floodlightcontroller/flowcache/web/GetAllFlowsByEndpointsResource.java b/src/main/java/net/floodlightcontroller/flowcache/web/GetAllFlowsByEndpointsResource.java
index 211a051..4e96c0c 100644
--- a/src/main/java/net/floodlightcontroller/flowcache/web/GetAllFlowsByEndpointsResource.java
+++ b/src/main/java/net/floodlightcontroller/flowcache/web/GetAllFlowsByEndpointsResource.java
@@ -3,8 +3,13 @@
 import java.util.ArrayList;
 
 import net.floodlightcontroller.flowcache.IFlowService;
+import net.floodlightcontroller.util.DataPathEndpoints;
+import net.floodlightcontroller.util.Dpid;
 import net.floodlightcontroller.util.FlowPath;
+import net.floodlightcontroller.util.Port;
+import net.floodlightcontroller.util.SwitchPort;
 
+import org.openflow.util.HexString;
 import org.restlet.resource.Get;
 import org.restlet.resource.ServerResource;
 import org.slf4j.Logger;
@@ -27,10 +32,24 @@
 	}
 
 	// Extract the arguments
-	String dataPathEndpointsStr = (String) getRequestAttributes().get("data-path-endpoints");
-	log.debug("Get All Flows Endpoints: " + dataPathEndpointsStr);
+        String srcDpidStr = (String) getRequestAttributes().get("src-dpid");
+        String srcPortStr = (String) getRequestAttributes().get("src-port");
+        String dstDpidStr = (String) getRequestAttributes().get("dst-dpid");
+        String dstPortStr = (String) getRequestAttributes().get("dst-port");
 
-	// TODO: Implement it.
+	log.debug("Get All Flows Endpoints: " + srcDpidStr + "--" +
+		  srcPortStr + "--" + dstDpidStr + "--" + dstPortStr);
+
+	Dpid srcDpid = new Dpid(HexString.toLong(srcDpidStr));
+	Port srcPort = new Port(Short.parseShort(srcPortStr));
+	Dpid dstDpid = new Dpid(HexString.toLong(dstDpidStr));
+	Port dstPort = new Port(Short.parseShort(dstPortStr));
+	SwitchPort srcSwitchPort = new SwitchPort(srcDpid, srcPort);
+	SwitchPort dstSwitchPort = new SwitchPort(dstDpid, dstPort);
+	DataPathEndpoints dataPathEndpoints =
+	    new DataPathEndpoints(srcSwitchPort, dstSwitchPort);
+
+	flowService.getAllFlows(dataPathEndpoints, result);
 
         return result;
     }
diff --git a/src/main/java/net/floodlightcontroller/flowcache/web/GetAllFlowsResource.java b/src/main/java/net/floodlightcontroller/flowcache/web/GetAllFlowsResource.java
index 9d95651..5bf3a50 100644
--- a/src/main/java/net/floodlightcontroller/flowcache/web/GetAllFlowsResource.java
+++ b/src/main/java/net/floodlightcontroller/flowcache/web/GetAllFlowsResource.java
@@ -29,7 +29,7 @@
 	// Extract the arguments
 	log.debug("Get All Flows Endpoints");
 
-	// TODO: Implement it.
+	flowService.getAllFlows(result);
 
         return result;
     }
diff --git a/src/main/java/net/floodlightcontroller/flowcache/web/GetFlowByIdResource.java b/src/main/java/net/floodlightcontroller/flowcache/web/GetFlowByIdResource.java
index 99f880c..2863c79 100644
--- a/src/main/java/net/floodlightcontroller/flowcache/web/GetFlowByIdResource.java
+++ b/src/main/java/net/floodlightcontroller/flowcache/web/GetFlowByIdResource.java
@@ -1,6 +1,7 @@
 package net.floodlightcontroller.flowcache.web;
 
 import net.floodlightcontroller.flowcache.IFlowService;
+import net.floodlightcontroller.util.FlowId;
 import net.floodlightcontroller.util.FlowPath;
 
 import org.openflow.util.HexString;
@@ -27,10 +28,11 @@
 
 	// Extract the arguments
 	String flowIdStr = (String) getRequestAttributes().get("flow-id");
-	long flowId = HexString.toLong(flowIdStr);
+	FlowId flowId = new FlowId(HexString.toLong(flowIdStr));
+
 	log.debug("Get Flow Id: " + flowIdStr);
 
-	// TODO: Implement it.
+	flowService.getFlow(flowId, result);
 
         return result;
     }
diff --git a/src/main/java/net/floodlightcontroller/flowcache/web/GetFlowByInstallerIdResource.java b/src/main/java/net/floodlightcontroller/flowcache/web/GetFlowByInstallerIdResource.java
index 32d20cc..6b5f7f4 100644
--- a/src/main/java/net/floodlightcontroller/flowcache/web/GetFlowByInstallerIdResource.java
+++ b/src/main/java/net/floodlightcontroller/flowcache/web/GetFlowByInstallerIdResource.java
@@ -1,8 +1,14 @@
 package net.floodlightcontroller.flowcache.web;
 
 import net.floodlightcontroller.flowcache.IFlowService;
+import net.floodlightcontroller.util.CallerId;
+import net.floodlightcontroller.util.DataPathEndpoints;
+import net.floodlightcontroller.util.Dpid;
 import net.floodlightcontroller.util.FlowPath;
+import net.floodlightcontroller.util.Port;
+import net.floodlightcontroller.util.SwitchPort;
 
+import org.openflow.util.HexString;
 import org.restlet.resource.Get;
 import org.restlet.resource.ServerResource;
 import org.slf4j.Logger;
@@ -25,11 +31,27 @@
 	}
 
 	// Extract the arguments
-	String installerIdStr = (String) getRequestAttributes().get("installer-id");
-	String dataPathEndpointsStr = (String) getRequestAttributes().get("data-path-endpoints");
-	log.debug("Get Flow Installer: " + installerIdStr + " Endpoints: " + dataPathEndpointsStr);
+        String installerIdStr = (String) getRequestAttributes().get("installer-id");
+        String srcDpidStr = (String) getRequestAttributes().get("src-dpid");
+        String srcPortStr = (String) getRequestAttributes().get("src-port");
+        String dstDpidStr = (String) getRequestAttributes().get("dst-dpid");
+        String dstPortStr = (String) getRequestAttributes().get("dst-port");
 
-	// TODO: Implement it.
+	log.debug("Get Flow By Installer: " + installerIdStr + " Endpoints: " +
+		  srcDpidStr + "--" + srcPortStr + "--" +
+		  dstDpidStr + "--" + dstPortStr);
+
+	CallerId installerId = new CallerId(installerIdStr);
+	Dpid srcDpid = new Dpid(HexString.toLong(srcDpidStr));
+	Port srcPort = new Port(Short.parseShort(srcPortStr));
+	Dpid dstDpid = new Dpid(HexString.toLong(dstDpidStr));
+	Port dstPort = new Port(Short.parseShort(dstPortStr));
+	SwitchPort srcSwitchPort = new SwitchPort(srcDpid, srcPort);
+	SwitchPort dstSwitchPort = new SwitchPort(dstDpid, dstPort);
+	DataPathEndpoints dataPathEndpoints =
+	    new DataPathEndpoints(srcSwitchPort, dstSwitchPort);
+
+	flowService.getFlow(installerId, dataPathEndpoints, result);
 
         return result;
     }
diff --git a/src/main/java/net/floodlightcontroller/util/DataPath.java b/src/main/java/net/floodlightcontroller/util/DataPath.java
index 34fc1f2..ad6cdb8 100644
--- a/src/main/java/net/floodlightcontroller/util/DataPath.java
+++ b/src/main/java/net/floodlightcontroller/util/DataPath.java
@@ -76,18 +76,18 @@
      * Convert the data path to a string.
      *
      * The string has the following form:
-     * [src:01:01:01:01:01:01:01:01/1111 flowEntry:<entry1> flowEntry:<entry2> flowEntry:<entry3> dst:02:02:02:02:02:02:02:02/2222]
+     * [src=01:01:01:01:01:01:01:01/1111 flowEntry=<entry1> flowEntry=<entry2> flowEntry=<entry3> dst=02:02:02:02:02:02:02:02/2222]
      *
      * @return the data path as a string.
      */
     @Override
     public String toString() {
-	String ret = "[src:" + this.srcPort.toString();
+	String ret = "[src=" + this.srcPort.toString();
 
 	for (FlowEntry fe : flowEntries) {
-	    ret += " flowEntry:" + fe.toString();
+	    ret += " flowEntry=" + fe.toString();
 	}
-	ret += " dst:" + this.dstPort.toString() + "]";
+	ret += " dst=" + this.dstPort.toString() + "]";
 
 	return ret;
     }
diff --git a/src/main/java/net/floodlightcontroller/util/DataPathEndpoints.java b/src/main/java/net/floodlightcontroller/util/DataPathEndpoints.java
index 9dd7dbb..92cf2dd 100644
--- a/src/main/java/net/floodlightcontroller/util/DataPathEndpoints.java
+++ b/src/main/java/net/floodlightcontroller/util/DataPathEndpoints.java
@@ -67,14 +67,14 @@
      * Convert the data path endpoints to a string.
      *
      * The string has the following form:
-     * [src:01:01:01:01:01:01:01:01/1111 dst:02:02:02:02:02:02:02:02/2222]
+     * [src=01:01:01:01:01:01:01:01/1111 dst=02:02:02:02:02:02:02:02/2222]
      *
      * @return the data path endpoints as a string.
      */
     @Override
     public String toString() {
-	String ret = "[src:" + this.srcPort.toString() +
-	    " dst:" + this.dstPort.toString() + "]";
+	String ret = "[src=" + this.srcPort.toString() +
+	    " dst=" + this.dstPort.toString() + "]";
 	return ret;
     }
 }
diff --git a/src/main/java/net/floodlightcontroller/util/FlowEntry.java b/src/main/java/net/floodlightcontroller/util/FlowEntry.java
index d45d87f..42ec935 100644
--- a/src/main/java/net/floodlightcontroller/util/FlowEntry.java
+++ b/src/main/java/net/floodlightcontroller/util/FlowEntry.java
@@ -219,22 +219,22 @@
      * Convert the flow entry to a string.
      *
      * The string has the following form:
-     *  [flowEntryId:XXX flowEntryMatch:XXX flowEntryActions:XXX dpid:XXX
-     *   inPort:XXX outPort:XXX flowEntryUserState:XXX flowEntrySwitchState:XXX
-     *   flowEntryErrorState:XXX]
+     *  [flowEntryId=XXX flowEntryMatch=XXX flowEntryActions=XXX dpid=XXX
+     *   inPort=XXX outPort=XXX flowEntryUserState=XXX flowEntrySwitchState=XXX
+     *   flowEntryErrorState=XXX]
      * @return the flow entry as a string.
      */
     @Override
     public String toString() {
-	String ret = "[flowEntryId:" + this.flowEntryId.toString();
-	ret += " flowEntryMatch:" + this.flowEntryMatch.toString();
-	ret += " flowEntryActions:" + this.flowEntryActions.toString();
-	ret += " dpid:" + this.dpid.toString();
-	ret += " inPort:" + this.inPort.toString();
-	ret += " outPort:" + this.outPort.toString();
-	ret += " flowEntryUserState:" + this.flowEntryUserState;
-	ret += " flowEntrySwitchState:" + this.flowEntrySwitchState;
-	ret += " flowEntryErrorState:" + this.flowEntryErrorState.toString();
+	String ret = "[flowEntryId=" + this.flowEntryId.toString();
+	ret += " flowEntryMatch=" + this.flowEntryMatch.toString();
+	ret += " flowEntryActions=" + this.flowEntryActions.toString();
+	ret += " dpid=" + this.dpid.toString();
+	ret += " inPort=" + this.inPort.toString();
+	ret += " outPort=" + this.outPort.toString();
+	ret += " flowEntryUserState=" + this.flowEntryUserState;
+	ret += " flowEntrySwitchState=" + this.flowEntrySwitchState;
+	ret += " flowEntryErrorState=" + this.flowEntryErrorState.toString();
 	ret += "]";
 
 	return ret;
diff --git a/src/main/java/net/floodlightcontroller/util/FlowEntryErrorState.java b/src/main/java/net/floodlightcontroller/util/FlowEntryErrorState.java
index 0dfae09..f9ca8ba 100644
--- a/src/main/java/net/floodlightcontroller/util/FlowEntryErrorState.java
+++ b/src/main/java/net/floodlightcontroller/util/FlowEntryErrorState.java
@@ -61,13 +61,13 @@
      * Convert the error type and code to a string.
      *
      * The string has the following form:
-     * [type:1 code:2]
+     * [type=1 code=2]
      *
      * @return the error type and code as a string.
      */
     @Override
     public String toString() {
-	String ret = "[type:" + this.type + " code:" + code + "]";
+	String ret = "[type=" + this.type + " code=" + code + "]";
 	return ret;
     }
 }
diff --git a/src/main/java/net/floodlightcontroller/util/FlowEntryMatch.java b/src/main/java/net/floodlightcontroller/util/FlowEntryMatch.java
index ddc65d0..0e3775e 100644
--- a/src/main/java/net/floodlightcontroller/util/FlowEntryMatch.java
+++ b/src/main/java/net/floodlightcontroller/util/FlowEntryMatch.java
@@ -100,16 +100,16 @@
      * Convert the matching filter to a string.
      *
      * The string has the following form:
-     *  [srcMac:XXX dstMac:XXX srcIPv4Net:XXX dstIPv4Net:XXX]
+     *  [srcMac=XXX dstMac=XXX srcIPv4Net=XXX dstIPv4Net=XXX]
      *
      * @return the matching filter as a string.
      */
     @Override
     public String toString() {
-	String ret = "[srcMac: " + this.srcMac.toString();
-	ret += " dstMac:" + this.dstMac.toString();
-	ret += " srcIPv4Net:" + this.srcIPv4Net.toString();
-	ret += " dstIPv4Net:" + this.dstIPv4Net.toString();
+	String ret = "[srcMac=" + this.srcMac.toString();
+	ret += " dstMac=" + this.dstMac.toString();
+	ret += " srcIPv4Net=" + this.srcIPv4Net.toString();
+	ret += " dstIPv4Net=" + this.dstIPv4Net.toString();
 	ret += "]";
 	return ret;
     }
diff --git a/src/main/java/net/floodlightcontroller/util/FlowPath.java b/src/main/java/net/floodlightcontroller/util/FlowPath.java
index b67fabe..f91bb4a 100644
--- a/src/main/java/net/floodlightcontroller/util/FlowPath.java
+++ b/src/main/java/net/floodlightcontroller/util/FlowPath.java
@@ -24,6 +24,13 @@
     }
 
     /**
+     * Constructor from a string.
+     */
+    public FlowPath(String str) {
+	// TODO: Implement it.
+    }
+
+    /**
      * Get the flow path Flow ID.
      *
      * @return the flow path Flow ID.
@@ -74,13 +81,17 @@
     /**
      * Convert the flow path to a string.
      *
+     * The string has the following form:
+     *  [flowId=XXX installerId=XXX dataPath=XXX]
+     *
      * @return the flow path as a string.
      */
     @Override
     public String toString() {
-	String ret = "[flowId:" + this.flowId.toString();
-	ret += " installerId:" + this.installerId.toString();
-	ret += " dataPath:" + this.dataPath.toString();
+	String ret = "[flowId=" + this.flowId.toString();
+	ret += " installerId=" + this.installerId.toString();
+	ret += " dataPath=" + this.dataPath.toString();
+	ret += "]";
 	return ret;
     }
 }