/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 backtype.storm.command;
import java.util.Map;
import org.apache.commons.lang.StringUtils;
import backtype.storm.generated.ClusterSummary;
import backtype.storm.generated.TopologyInfo;
import backtype.storm.utils.NimbusClient;
import backtype.storm.utils.Utils;
/**
* Activate topology
*
* @author longda
*/
public class list {
public static void main(String[] args) {
NimbusClient client = null;
try {
Map conf = Utils.readStormConfig();
client = NimbusClient.getConfiguredClient(conf);
if (args.length > 0 && !StringUtils.isBlank(args[0])) {
String topologyName = args[0];
TopologyInfo info = client.getClient().getTopologyInfoByName(topologyName);
System.out.println("Successfully get topology info \n" + Utils.toPrettyJsonString(info));
} else {
ClusterSummary clusterSummary = client.getClient().getClusterInfo();
System.out.println("Successfully get cluster info \n" + Utils.toPrettyJsonString(clusterSummary));
}
} catch (Exception e) {
System.out.println(e.getMessage());
e.printStackTrace();
throw new RuntimeException(e);
} finally {
if (client != null) {
client.close();
}
}
}
}