【ONOS-1223】【ONOS-1870】the implements of label resource APIs.it include
commands
used to test
if there is any bug,LabelResourceManager,LabelResourceStore using
copycat,and junit test code.
the distribution strategy is that the master of devices handle all the
requests if applied label belongs to it.except for query request.
label store uses copycat instead of hazelcast to keep strong consistency

Change-Id: I77bde6a96f33098063573d37ed1ba787ae21973f
diff --git a/cli/src/main/java/org/onosproject/cli/net/GetLabelResourceCommand.java b/cli/src/main/java/org/onosproject/cli/net/GetLabelResourceCommand.java
new file mode 100644
index 0000000..cd10add
--- /dev/null
+++ b/cli/src/main/java/org/onosproject/cli/net/GetLabelResourceCommand.java
@@ -0,0 +1,35 @@
+package org.onosproject.cli.net;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.resource.LabelResourcePool;
+import org.onosproject.net.resource.LabelResourceService;
+
+@Command(scope = "onos", name = "get-label-resource-pool",
+      description = "Gets label resource pool information by a specific device id")
+public class GetLabelResourceCommand extends AbstractShellCommand {
+    @Argument(index = 0, name = "deviceId",
+            description = "Device identity", required = true, multiValued = false)
+    String deviceId = null;
+    private static final String FMT = "deviceid=%s, beginLabel=%s,"
+            + "endLabel=%s, totalNum=%s, usedNum=%s, currentUsedMaxLabelId=%s,"
+            + "releaseLabelIds=%s";
+
+    @Override
+    protected void execute() {
+        LabelResourceService lrs = get(LabelResourceService.class);
+        LabelResourcePool pool = lrs.getDeviceLabelResourcePool(DeviceId
+                .deviceId(deviceId));
+        if (pool != null) {
+            print(FMT, pool.deviceId().toString(), pool.beginLabel(),
+                  pool.endLabel(), pool.totalNum(), pool.usedNum(),
+                  pool.currentUsedMaxLabelId(), pool.releaseLabelId()
+                          .toString());
+        } else {
+            print(FMT, deviceId, null, null, null, null, null, null);
+        }
+    }
+
+}