Added REST API call to get a summary of Flow Paths.
NOTE: This REST API call is needed for the ONOS GUI.
GET /wm/onos/datagrid/get/ng-flows/summary/json
http://localhost:8080/wm/onos/datagrid/get/ng-flows/summary/json
Change-Id: Ie9dc36b2f6ed7a955b456e527db6b47de0a4e467
diff --git a/src/main/java/net/onrc/onos/datagrid/web/GetNGFlowsSummaryResource.java b/src/main/java/net/onrc/onos/datagrid/web/GetNGFlowsSummaryResource.java
new file mode 100644
index 0000000..5879f3b
--- /dev/null
+++ b/src/main/java/net/onrc/onos/datagrid/web/GetNGFlowsSummaryResource.java
@@ -0,0 +1,115 @@
+package net.onrc.onos.datagrid.web;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.SortedMap;
+import java.util.TreeMap;
+
+import net.onrc.onos.intent.Intent;
+import net.onrc.onos.intent.PathIntent;
+import net.onrc.onos.intent.ShortestPathIntent;
+import net.onrc.onos.intent.Intent.IntentState;
+import net.onrc.onos.intent.IntentMap;
+import net.onrc.onos.intent.runtime.IPathCalcRuntimeService;
+
+import net.onrc.onos.ofcontroller.networkgraph.LinkEvent;
+import net.onrc.onos.ofcontroller.networkgraph.Path;
+import net.onrc.onos.ofcontroller.util.CallerId;
+import net.onrc.onos.ofcontroller.util.Dpid;
+import net.onrc.onos.ofcontroller.util.FlowEntry;
+import net.onrc.onos.ofcontroller.util.FlowId;
+import net.onrc.onos.ofcontroller.util.FlowPath;
+import net.onrc.onos.ofcontroller.util.FlowPathType;
+import net.onrc.onos.ofcontroller.util.FlowPathUserState;
+import net.onrc.onos.ofcontroller.util.Port;
+import net.onrc.onos.ofcontroller.util.SwitchPort;
+
+import org.restlet.resource.Get;
+import org.restlet.resource.ServerResource;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * REST API call to get a summary of Flow Paths.
+ *
+ * NOTE: This REST API call is needed for the ONOS GUI.
+ *
+ * GET /wm/onos/datagrid/get/ng-flows/summary/json
+ */
+public class GetNGFlowsSummaryResource extends ServerResource {
+ public static final Logger log = LoggerFactory.getLogger(GetNGFlowsSummaryResource.class);
+
+ @Get("json")
+ public ArrayList<FlowPath> retrieve() {
+ ArrayList<FlowPath> result = new ArrayList<>();
+ SortedMap<Long, FlowPath> sortedFlowPaths = new TreeMap<>();
+
+ IPathCalcRuntimeService pathRuntime =
+ (IPathCalcRuntimeService)getContext().
+ getAttributes().get(IPathCalcRuntimeService.class.getCanonicalName());
+ log.debug("Get NG Flows Summary");
+
+
+ IntentMap parentIntentMap = pathRuntime.getHighLevelIntents();
+ IntentMap intentMap = pathRuntime.getPathIntents();
+ for (Intent parentIntent : parentIntentMap.getAllIntents()) {
+ // Get only installed Shortest Paths
+ if (parentIntent.getState() != IntentState.INST_ACK)
+ continue;
+ if (! (parentIntent instanceof ShortestPathIntent))
+ continue;
+ ShortestPathIntent spIntent = (ShortestPathIntent)parentIntent;
+
+ // Get the Path Intent
+ Intent intent = intentMap.getIntent(spIntent.getPathIntentId());
+ if (! (intent instanceof PathIntent))
+ continue;
+ PathIntent pathIntent = (PathIntent)intent;
+
+ // Decode the Shortest Path ID
+ String applnIntentId = parentIntent.getId();
+ String intentId = applnIntentId.split(":")[1];
+
+ // Create the Flow Path
+ FlowId flowId = new FlowId(intentId);
+ FlowPath flowPath = new FlowPath();
+ flowPath.setFlowId(flowId);
+ sortedFlowPaths.put(flowPath.flowId().value(), flowPath);
+
+ flowPath.setInstallerId(new CallerId("E"));
+ flowPath.setFlowEntryActions(null);
+ flowPath.setFlowPathType(FlowPathType.FP_TYPE_SHORTEST_PATH);
+ flowPath.setFlowPathUserState(FlowPathUserState.FP_USER_ADD);
+
+ // Setup the Source and Destination DPID and Port
+ SwitchPort srcPort = flowPath.dataPath().srcPort();
+ SwitchPort dstPort = flowPath.dataPath().dstPort();
+ srcPort.setDpid(new Dpid(spIntent.getSrcSwitchDpid()));
+ srcPort.setPort(new Port((short)spIntent.getSrcPortNumber()));
+ dstPort.setDpid(new Dpid(spIntent.getDstSwitchDpid()));
+ dstPort.setPort(new Port((short)spIntent.getDstPortNumber()));
+
+ // Extract the Flow Entries
+ Path path = pathIntent.getPath();
+ FlowEntry flowEntry;
+ ArrayList<FlowEntry> flowEntries = new ArrayList<>();
+ for (LinkEvent linkEvent : path) {
+ Dpid dpid = new Dpid(linkEvent.getSrc().getDpid());
+ flowEntry = new FlowEntry();
+ flowEntry.setDpid(dpid);
+ flowEntries.add(flowEntry);
+ }
+ // Add the final Flow Entry
+ flowEntry = new FlowEntry();
+ flowEntry.setDpid(new Dpid(spIntent.getDstSwitchDpid()));
+ flowEntries.add(flowEntry);
+ flowPath.dataPath().setFlowEntries(flowEntries);
+ }
+
+ // Prepare the return result
+ for (FlowPath flowPath : sortedFlowPaths.values())
+ result.add(flowPath);
+
+ return result;
+ }
+}