ONOS checkin based on commit tag e796610b1f721d02f9b0e213cf6f7790c10ecd60

Change-Id: Ife8810491034fe7becdba75dda20de4267bd15cd

1 files changed, 88 insertions, 0 deletions

diff --git a/framework/src/onos/cli/src/main/java/org/onosproject/cli/NodesListCommand.java b/framework/src/onos/cli/src/main/java/org/onosproject/cli/NodesListCommand.java
new file mode 100644
index 00000000..50e8d534
--- /dev/null
+++ b/framework/src/onos/cli/src/main/java/org/onosproject/cli/NodesListCommand.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2014-2015 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.onosproject.cli;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.apache.karaf.shell.commands.Command;
+import org.joda.time.DateTime;
+import org.onlab.util.Tools;
+import org.onosproject.cluster.ClusterService;
+import org.onosproject.cluster.ControllerNode;
+
+import java.util.Collections;
+import java.util.List;
+
+import static com.google.common.collect.Lists.newArrayList;
+
+
+/**
+ * Lists all controller cluster nodes.
+ */
+@Command(scope = "onos", name = "nodes",
+         description = "Lists all controller cluster nodes")
+public class NodesListCommand extends AbstractShellCommand {
+
+    private static final String FMT =
+            "id=%s, address=%s:%s, state=%s, updated=%s %s";
+
+    @Override
+    protected void execute() {
+        ClusterService service = get(ClusterService.class);
+        List<ControllerNode> nodes = newArrayList(service.getNodes());
+        Collections.sort(nodes, Comparators.NODE_COMPARATOR);
+        if (outputJson()) {
+            print("%s", json(service, nodes));
+        } else {
+            ControllerNode self = service.getLocalNode();
+            for (ControllerNode node : nodes) {
+                DateTime lastUpdated = service.getLastUpdated(node.id());
+                String timeAgo = "Never";
+                if (lastUpdated != null) {
+                    timeAgo = Tools.timeAgo(lastUpdated.getMillis());
+                }
+                print(FMT, node.id(), node.ip(), node.tcpPort(),
+                      service.getState(node.id()),
+                      timeAgo,
+                      node.equals(self) ? "*" : "");
+            }
+        }
+    }
+
+    // Produces JSON structure.
+    private JsonNode json(ClusterService service, List<ControllerNode> nodes) {
+        ObjectMapper mapper = new ObjectMapper();
+        ArrayNode result = mapper.createArrayNode();
+        ControllerNode self = service.getLocalNode();
+        for (ControllerNode node : nodes) {
+            ControllerNode.State nodeState = service.getState(node.id());
+            ObjectNode newNode = mapper.createObjectNode()
+                               .put("id", node.id().toString())
+                               .put("ip", node.ip().toString())
+                               .put("tcpPort", node.tcpPort())
+                               .put("self", node.equals(self));
+
+            if (nodeState != null) {
+                newNode.put("state", nodeState.toString());
+            }
+            result.add(newNode);
+        }
+        return result;
+    }
+
+}