jms/command/src/main/java/org/apache/karaf/jms/command/TopicsCommand.java

/*
 * 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.karaf.jms.command;

import org.apache.karaf.shell.commands.Command;
import org.apache.karaf.shell.table.ShellTable;

@Command(scope = "jms", name = "topics", description = "List the JMS topics.")
public class TopicsCommand extends JmsConnectionCommandSupport {

    public Object doExecute() throws Exception {
        ShellTable table = new ShellTable();

        table.column("JMS Topics");

        for (String topic : getJmsService().topics(connectionFactory, username, password)) {
            table.addRow().addContent(topic);
        }

        table.print(System.out);

        return null;
    }

}