Adding resource-{available,allocated} CLI commands and lots of toStrings

Change-Id: Ib23eda2d9feb523e23dc33fb437994267b4cc555
diff --git a/cli/src/main/java/org/onlab/onos/cli/net/ResourceAllocationsCommand.java b/cli/src/main/java/org/onlab/onos/cli/net/ResourceAllocationsCommand.java
new file mode 100644
index 0000000..b91ed3e
--- /dev/null
+++ b/cli/src/main/java/org/onlab/onos/cli/net/ResourceAllocationsCommand.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2014 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.onlab.onos.cli.net;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onlab.onos.cli.AbstractShellCommand;
+import org.onlab.onos.net.ConnectPoint;
+import org.onlab.onos.net.DeviceId;
+import org.onlab.onos.net.Link;
+import org.onlab.onos.net.PortNumber;
+import org.onlab.onos.net.link.LinkService;
+import org.onlab.onos.net.resource.LinkResourceAllocations;
+import org.onlab.onos.net.resource.LinkResourceService;
+
+import static org.onlab.onos.cli.net.AddPointToPointIntentCommand.getDeviceId;
+import static org.onlab.onos.cli.net.AddPointToPointIntentCommand.getPortNumber;
+import static org.onlab.onos.net.DeviceId.deviceId;
+import static org.onlab.onos.net.PortNumber.portNumber;
+
+/**
+ * Lists allocations by link.
+ */
+@Command(scope = "onos", name = "resource-allocations",
+         description = "Lists allocations by link")
+public class ResourceAllocationsCommand extends AbstractShellCommand {
+
+    private static final String FMT = "src=%s/%s, dst=%s/%s, type=%s%s";
+    private static final String COMPACT = "%s/%s-%s/%s";
+
+    @Argument(index = 0, name = "srcString", description = "Link source",
+              required = false, multiValued = false)
+    String srcString = null;
+    @Argument(index = 1, name = "dstString", description = "Link destination",
+              required = false, multiValued = false)
+    String dstString = null;
+
+    @Override
+    protected void execute() {
+        LinkResourceService resourceService = get(LinkResourceService.class);
+        LinkService linkService = get(LinkService.class);
+
+        Iterable<LinkResourceAllocations> itr = null;
+        try {
+            DeviceId ingressDeviceId = deviceId(getDeviceId(srcString));
+            PortNumber ingressPortNumber = portNumber(getPortNumber(srcString));
+            ConnectPoint src = new ConnectPoint(ingressDeviceId, ingressPortNumber);
+
+            DeviceId egressDeviceId = deviceId(getDeviceId(dstString));
+            PortNumber egressPortNumber = portNumber(getPortNumber(dstString));
+            ConnectPoint dst = new ConnectPoint(egressDeviceId, egressPortNumber);
+
+            Link link = linkService.getLink(src, dst);
+
+            itr = resourceService.getAllocations(link);
+
+            for (LinkResourceAllocations allocation : itr) {
+                print("%s", allocation.getResourceAllocation(link));
+            }
+
+        } catch (Exception e) {
+            print("----- Displaying all resource allocations -----", e.getMessage());
+            itr = resourceService.getAllocations();
+            for (LinkResourceAllocations allocation : itr) {
+                print("%s", allocation);
+            }
+
+        }
+    }
+}