Package org.impalaframework.web

Source Code of org.impalaframework.web.StartJetty

/*
* Copyright 2007-2008 the original author or authors.
*
* 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 org.impalaframework.web;

import java.io.File;

import org.mortbay.jetty.Connector;
import org.mortbay.jetty.Handler;
import org.mortbay.jetty.Server;
import org.mortbay.jetty.handler.ContextHandlerCollection;
import org.mortbay.jetty.handler.DefaultHandler;
import org.mortbay.jetty.handler.HandlerCollection;
import org.mortbay.jetty.handler.RequestLogHandler;
import org.mortbay.jetty.nio.SelectChannelConnector;
import org.mortbay.jetty.webapp.WebAppContext;

public class StartJetty {
   
    public static void main(String[] args) {

        if (args.length < 3) {
            System.out.println("Insufficient arguments supplied");
            usage();
            System.exit(1);
        }

        try {

            int port = getPort(args[0]);
            File configLocation = getContextLocation(args[1]);
            String contextPath = getContextPath(args[2]);

            Server server = new Server();

            Connector connector = new SelectChannelConnector();
            connector.setPort(port);
            server.setConnectors(new Connector[] { connector });

            HandlerCollection handlers = new HandlerCollection();
            ContextHandlerCollection contexts = new ContextHandlerCollection();

            WebAppContext webAppContext = new WebAppContext(configLocation.getAbsolutePath(), contextPath);
            contexts.addHandler(webAppContext);

            RequestLogHandler requestLogHandler = new RequestLogHandler();
            handlers.setHandlers(new Handler[] { contexts, new DefaultHandler(), requestLogHandler });
            server.setHandler(handlers);

            server.setStopAtShutdown(true);
            server.setSendServerVersion(true);

            try {
                server.start();
                server.join();
            }
            catch (Exception e) {
                e.printStackTrace();
            }
        }
        catch (IllegalArgumentException e) {
            System.out.println(e.getMessage());
            usage();
            System.exit(-1);
        }
    }

    static String getContextPath(String arg) {
        if (!arg.startsWith("/")) {
            arg = "/" + arg;
        }
        return arg;
    }

    static File getContextLocation(String arg) {
        File file = new File(arg);
        if (!file.exists()) {
            throw new IllegalArgumentException("Invalid context directory: " + file.getAbsolutePath());
        }
        return file;
    }

    static int getPort(String arg) {
        int port = 8080;
        try {
            port = Integer.parseInt(arg);
        }
        catch (NumberFormatException e1) {
            throw new IllegalArgumentException("Invalid port: " + arg);
        }
        return port;
    }

    private static void usage() {
        System.out.println(StartJetty.class.getName() + " [port] [context directory] [path]");
    }
}
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