kalumet-modules/controller/core/src/main/java/org/apache/kalumet/controller/core/JEEApplicationServerControllerFactory.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.kalumet.controller.core;

import org.apache.kalumet.model.Environment;
import org.apache.kalumet.model.JEEApplicationServer;
import org.apache.kalumet.utils.VariableUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.lang.reflect.Constructor;

/**
 * Factory to get a <code>JEEApplicationServerController</code>.
 */
public class JEEApplicationServerControllerFactory
{

    private final static transient Logger LOGGER =
        LoggerFactory.getLogger( JEEApplicationServerControllerFactory.class );

    public static JEEApplicationServerController getController( Environment environment, JEEApplicationServer server )
        throws ControllerException
    {
        LOGGER.debug( "Connecting to {}", VariableUtils.replace( server.getJmxurl(), environment.getVariables() ) );
        String jmxUrl = VariableUtils.replace( server.getJmxurl(), environment.getVariables() );
        String adminUser = VariableUtils.replace( server.getAdminuser(), environment.getVariables() );
        String adminPassword = VariableUtils.replace( server.getAdminpassword(), environment.getVariables() );
        JEEApplicationServerController controller = null;
        try
        {
            Class controllerClass = Class.forName( server.getClassname() );
            Constructor controllerConstructor = controllerClass.getConstructor(
                new Class[]{ String.class, String.class, String.class, String.class, Boolean.class } );
            controller = (JEEApplicationServerController) controllerConstructor.newInstance(
                new Object[]{ jmxUrl, adminUser, adminPassword, server.getName(),
                    new Boolean( environment.getJEEApplicationServers().isCluster() ) } );
        }
        catch ( Exception e )
        {
            LOGGER.error( "Can't initialize controller", e );
            if ( e != null )
            {
                throw new ControllerException( "Can't initialize controller", e );
            }
            else
            {
                throw new ControllerException(
                    "Can't initialize controller. Check if the JEE application server libraries are present in the agent classpath and check the agent log" );
            }
        }
        return controller;

    }

}