net.sf.appstatus.demo.batch.LaunchClassicBatchSampleServlet.java Source code

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Here is the source code for net.sf.appstatus.demo.batch.LaunchClassicBatchSampleServlet.java
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/*
 * Copyright 2010 Capgemini
 * Licensed 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 net.sf.appstatus.demo.batch;

import java.io.IOException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.context.support.WebApplicationContextUtils;

/**
 * Sample service call servlet, used to generate some service usage.
 * 
 * @author Guillaume Mary
 * 
 */
public class LaunchClassicBatchSampleServlet extends HttpServlet {

    private static final String ENCODING = "UTF-8";

    /**
     * Generated serial version UID.
     */
    private static final long serialVersionUID = -8830877354343317996L;

    /*
     * (non-Javadoc)
     * 
     * @see
     * javax.servlet.http.HttpServlet#doGet(javax.servlet.http.HttpServletRequest
     * , javax.servlet.http.HttpServletResponse)
     */
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

        // launch the batch
        ExecutorService executorService = Executors.newCachedThreadPool();

        BatchSample batch = (BatchSample) WebApplicationContextUtils
                .getRequiredWebApplicationContext(getServletContext()).getBean("batch");
        executorService.execute(batch);

        BatchSample2 batch2 = (BatchSample2) WebApplicationContextUtils
                .getRequiredWebApplicationContext(getServletContext()).getBean("batch2");
        executorService.execute(batch2);

        ServletOutputStream os = resp.getOutputStream();

        os.write("<html><head".getBytes(ENCODING));
        os.write("<body>".getBytes(ENCODING));
        os.write("<h1>Ok</h1>".getBytes(ENCODING));
        os.write("</body></html>".getBytes(ENCODING));
    }
}