/*
 * Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
 *
 * This file is part of Resin(R) Open Source
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Resin Open Source is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Resin Open Source is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Resin Open Source; if not, write to the
 *
 *   Free Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Alex Rojkov
 */

package com.caucho.boot;

import com.caucho.config.ConfigException;
import com.caucho.server.admin.ManagerClient;
import com.caucho.util.L10N;

import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;

public class JmxSetCommand extends JmxCommand
{
  private static final L10N L = new L10N(JmxSetCommand.class);

  @Override
  public int doCommand(WatchdogArgs args,
                       WatchdogClient client,
                       ManagerClient managerClient)
  {
    String pattern = args.getArg("-pattern");

    if (pattern == null)
      throw new ConfigException(L.l(
        "-pattern is required for jmx-set command"));

    try {
      ObjectName.getInstance(pattern);
    } catch (MalformedObjectNameException e) {
      throw new ConfigException(L.l("invalid pattern `{0}': `{1}'",
                                    pattern,
                                    e.getMessage()));
    }

    String attribute = args.getArg("-attribute");

    if (attribute == null)
      throw new ConfigException(L.l(
        "-attribute is required for jmx-set command"));

    String value = args.getDefaultArg();

    if (value == null)
      throw new ConfigException(L.l(
        "jmx-set requires <value> parameter be specified"));

    String result = managerClient.setJmx(pattern, attribute, value);

    System.out.println(result);

    return 0;
  }



  @Override
  public void usage()
  {
    System.err.println(L.l("usage: bin/resin.sh [-conf <file>] jmx-set -user <user> -password <password> -pattern <pattern> -attribute <attribute> value"));
    System.err.println(L.l(""));
    System.err.println(L.l("description:"));
    System.err.println(L.l("   sets value on a MBeans attribute to <value>"));
    System.err.println(L.l(""));
    System.err.println(L.l("options:"));
    System.err.println(L.l("   -pattern               : pattern to match MBean, adheres to the rules defined for javax.managment.ObjectName e.g. qa:type=Foo"));
    System.err.println(L.l("   -attribute             : name of the attribute"));
  }
}