SparqlEndpointProxyMain.java example

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jena-sparql-api-master
package org.aksw.jena_sparql_api.example.proxy;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.GnuParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Options;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;
import org.glassfish.jersey.servlet.ServletContainer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


public class SparqlEndpointProxyMain {
    /**
     * @param exitCode
     */
    public static void printHelpAndExit(int exitCode) {
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp(SparqlEndpointProxyMain.class.getName(), cliOptions);
        System.exit(exitCode);
    }

    private static final Logger logger = LoggerFactory
            .getLogger(SparqlEndpointProxyMain.class);
    private static final Options cliOptions = new Options();

    /**
     * @param args
     *            the command line arguments
     */
    public static void main(String[] args) throws Exception {
        logger.info("Launching server...");

        /*
        PropertyConfigurator.configure("log4j.properties");
        LogManager.getLogManager().readConfiguration(
                new FileInputStream("jdklog.properties"));
        */

        CommandLineParser cliParser = new GnuParser();

        cliOptions.addOption("P", "port", true, "Server port");
        //cliOptions.addOption("C", "context", true, "Context e.g. /sparqlify");
        //cliOptions.addOption("B", "backlog", true, "Maximum number of connections");

        cliOptions.addOption("s", "default service uri", true, "");
        cliOptions.addOption("o", "allow override of default service uri", true, "");

        CommandLine commandLine = cliParser.parse(cliOptions, args);


        // Parsing of command line args
        String portStr = commandLine.getOptionValue("P", "5522");
        //String backLogStr = commandLine.getOptionValue("B", "100");
        //String contextStr = commandLine.getOptionValue("C", "/sparqlify");
        int port = Integer.parseInt(portStr);
        //int backLog = Integer.parseInt(backLogStr);


        String defaultServiceUri = commandLine.getOptionValue("s", "http://localhost/sparql");
        String allowOverrideServiceUriStr = commandLine.getOptionValue("o", "false");
        Boolean allowOverrideServiceUri = Boolean.parseBoolean(allowOverrideServiceUriStr);



        ServletHolder sh = new ServletHolder(ServletContainer.class);
        //ServletHolder sh = new ServletHolder(org.atmosphere.cpr.AtmosphereServlet.class);
        //sh.setHeldClass(org.atmosphere.cpr.AtmosphereServlet.class);
        sh.setInitParameter("com.sun.jersey.api.json.POJOMappingFeature", "true");
        sh.setInitParameter(
                "com.sun.jersey.config.property.resourceConfigClass",
                "com.sun.jersey.api.core.PackagesResourceConfig");
        sh.setInitParameter("com.sun.jersey.config.property.packages",
                "org.aksw.jena_sparql_api.example.proxy");


        Server server = new Server(port);

        ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
        context.setContextPath("/");
        server.setHandler(context);
        //Context context = new Context(server, "/", Context.SESSIONS);
        //context.addServlet(sh, "/*");


        context.addServlet(sh, "/*");


        context.setAttribute("defaultServiceUri", defaultServiceUri);
        context.setAttribute("allowOverrideServiceUri", allowOverrideServiceUri);

        server.start();
    }

}