ActiveMQ example source code file (ActiveMQCommandSupport.java)

This example ActiveMQ source code file (ActiveMQCommandSupport.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - ActiveMQ tags/keywords

argument, arraylist, arraylist, command, command, commandcontext, exception, exception, jmx, osgicommandsupport, string, string, this, throwable, util

The ActiveMQ ActiveMQCommandSupport.java source code

/*
 * 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.activemq.karaf.commands;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;

import org.apache.activemq.console.command.Command;
import org.apache.activemq.console.formatter.CommandShellOutputFormatter;
import org.apache.activemq.console.CommandContext;
import org.apache.karaf.shell.console.OsgiCommandSupport;
import org.apache.felix.gogo.commands.Argument;

/**
 * @version $Rev: 960482 $ $Date: 2010-07-05 10:28:33 +0200 (Mon, 05 Jul 2010) $
 */
public class ActiveMQCommandSupport extends OsgiCommandSupport {

    private Command command;

    @Argument(index=0, multiValued=true, required=true)
    private Collection<String> arguments;

    protected Object doExecute() throws Exception {
        CommandContext context2 = new CommandContext();
        context2.setFormatter(new CommandShellOutputFormatter(System.out));
        Command currentCommand = command.getClass().newInstance();

        try {
            currentCommand.setCommandContext(context2);
            currentCommand.execute(arguments != null ? new ArrayList<String>(arguments) : new ArrayList());
            return null;
        } catch (Throwable e) {
            Throwable cur = e;
            while (cur.getCause() != null) {
                cur = cur.getCause();
            }
            if (cur instanceof java.net.ConnectException) {
                context2
                    .print("\n"
                        + "Could not connect to JMX server.  This command requires that the remote JMX server be enabled.\n"
                        + "This is typically done by adding the following JVM arguments: \n"
                        + "   -Dcom.sun.management.jmxremote.port=1099 -Dcom.sun.management.jmxremote.authenticate=false \n"
                        + "   -Dcom.sun.management.jmxremote.ssl=false \n" + "\n"
                        + "The connection error was: " + cur + "\n");
            } else {
                if (e instanceof Exception) {
                    throw (Exception)e;
                } else {
                    throw new RuntimeException(e);
                }

            }
        }
        return null;

    }

    public Command getCommand() {
        return command;
    }

    public void setCommand(Command command) {
        this.command = command;
    }

    public static String[] toStringArray(Object args[]) {
        String strings[] = new String[args.length];
        for(int i = 0; i < args.length; i++) {
            strings[i] = String.valueOf(args[i]);
        }
        return strings;
    }
}