| /* |
| * 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 org.apache.cassandra.tools.nodetool; |
| |
| import static java.lang.String.format; |
| import io.airlift.command.Command; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.cassandra.tools.NodeProbe; |
| import org.apache.cassandra.tools.NodeTool.NodeToolCmd; |
| |
| @Command(name = "describecluster", description = "Print the name, snitch, partitioner and schema version of a cluster") |
| public class DescribeCluster extends NodeToolCmd |
| { |
| @Override |
| public void execute(NodeProbe probe) |
| { |
| // display cluster name, snitch and partitioner |
| System.out.println("Cluster Information:"); |
| System.out.println("\tName: " + probe.getClusterName()); |
| System.out.println("\tSnitch: " + probe.getEndpointSnitchInfoProxy().getSnitchName()); |
| System.out.println("\tPartitioner: " + probe.getPartitioner()); |
| |
| // display schema version for each node |
| System.out.println("\tSchema versions:"); |
| Map<String, List<String>> schemaVersions = probe.getSpProxy().getSchemaVersions(); |
| for (String version : schemaVersions.keySet()) |
| { |
| System.out.println(format("\t\t%s: %s%n", version, schemaVersions.get(version))); |
| } |
| } |
| } |