Package org.apache.openejb.tomcat

Source Code of org.apache.openejb.tomcat.TomcatLoader

/**
*
* 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.openejb.tomcat;

import org.apache.openejb.OpenEJB;
import org.apache.openejb.assembler.classic.WebAppBuilder;
import org.apache.openejb.core.ServerFederation;
import org.apache.openejb.core.ThreadContext;
import org.apache.openejb.loader.Loader;
import org.apache.openejb.loader.SystemInstance;
import org.apache.openejb.server.ServiceException;
import org.apache.openejb.server.ejbd.EjbServer;

import javax.servlet.ServletException;
import javax.servlet.ServletInputStream;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Properties;

/**
* @version $Revision: 577495 $ $Date: 2007-09-19 18:41:39 -0700 (Wed, 19 Sep 2007) $
*/
public class TomcatLoader implements Loader {
    private EjbServer ejbServer;

    public void init(Properties props) throws Exception {
        // Not thread safe
        if (OpenEJB.isInitialized()) {
            ejbServer = SystemInstance.get().getComponent(EjbServer.class);
            return;
        }

        ThreadContext.addThreadContextListener(new TomcatThreadContextListener());

        if (SystemInstance.get().getComponent(WebAppBuilder.class) == null) {
            TomcatWebAppBuilder tomcatWebAppBuilder = new TomcatWebAppBuilder();
            tomcatWebAppBuilder.start();
            SystemInstance.get().setComponent(WebAppBuilder.class, tomcatWebAppBuilder);
        }

        SystemInstance.init(props);

        ejbServer = new EjbServer();
        SystemInstance.get().setComponent(EjbServer.class, ejbServer);
        OpenEJB.init(props, new ServerFederation());
        ejbServer.init(props);
    }

    public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        ServletInputStream in = request.getInputStream();
        ServletOutputStream out = response.getOutputStream();
        try {
            ejbServer.service(in, out);
        } catch (ServiceException e) {
            throw new ServletException("ServerService error: " + ejbServer.getClass().getName() + " -- " + e.getMessage(), e);
        }
    }
}
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