/* | |
* | |
* 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.qpid.management.wsdm; | |
import java.lang.management.ManagementFactory; | |
import javax.servlet.ServletException; | |
import javax.servlet.http.HttpServlet; | |
import javax.servlet.http.HttpServletRequest; | |
import javax.servlet.http.HttpServletResponse; | |
import org.apache.qpid.management.Messages; | |
import org.apache.qpid.management.Names; | |
import org.apache.qpid.transport.util.Logger; | |
/** | |
* QPid Emulator Initializer. | |
* This component is basically responsible to create and initialize | |
* an emulator module used for simulate object instances creation. | |
* | |
* @author Andrea Gazzarini | |
*/ | |
public class QEmuInitializer extends HttpServlet | |
{ | |
private static final long serialVersionUID = 6149614872902682208L; | |
private final static Logger LOGGER = Logger.get(QEmuInitializer.class); | |
/** | |
* QEmu initialization method. | |
* | |
* @throws ServletException when the module cannot be initialized. | |
*/ | |
public void init() throws ServletException | |
{ | |
try | |
{ | |
ManagementFactory.getPlatformMBeanServer().registerMBean( | |
new QEmu(), | |
Names.QPID_EMULATOR_OBJECT_NAME); | |
} catch(Exception exception) | |
{ | |
LOGGER.warn( | |
exception, | |
Messages.QMAN_300005_QEMU_INITIALIZATION_FAILURE); | |
throw new ServletException(exception); | |
} | |
} | |
/** | |
* This is a startup module only so an override of the | |
* default servlet behaviour must be done in order to | |
* prevent incoming http requests processing. | |
* | |
* @param request the http request. | |
* @param response the http response. | |
* @throws ServletException each time this method is called. | |
*/ | |
@Override | |
public void service(HttpServletRequest request,HttpServletResponse response) throws ServletException | |
{ | |
throw new ServletException(); | |
} | |
/** | |
* Unregister QPid emulator. | |
*/ | |
public void destroy() | |
{ | |
try | |
{ | |
ManagementFactory.getPlatformMBeanServer().unregisterMBean( | |
Names.QPID_EMULATOR_OBJECT_NAME); | |
} catch (Exception exception) | |
{ | |
} | |
} | |
} |