de.matrixweb.smaller.internal.Server Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of standalone Show documentation
There is a newer version: 0.8.8
package de.matrixweb.smaller.internal;

import java.io.InputStream;
import java.net.InetSocketAddress;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.eclipse.jetty.servlet.ServletHandler;
import org.eclipse.jetty.servlet.ServletHolder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Document;

import de.matrixweb.smaller.osgi.http.Servlet;
import de.matrixweb.smaller.pipeline.Pipeline;
import de.matrixweb.smaller.resource.ProcessorFactory;
import de.matrixweb.smaller.resource.impl.JavaEEProcessorFactory;

/**
 * @author marwol
 */
public class Server {

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

  private volatile String version;

  private final org.eclipse.jetty.server.Server server;

  private final ProcessorFactory processorFactory = new JavaEEProcessorFactory();

  /**
   * @param args
   */
  public static void main(final String[] args) {
    new Server(args).start();
  }

  /**
   * @param args
   */
  public Server(final String... args) {
    final ListenAddress la = new ListenAddress(args);
    LOGGER.info("\nVersion: {}\nListen On: {}", getVersion(), la);
    this.server = new org.eclipse.jetty.server.Server(
        InetSocketAddress.createUnresolved(la.getHost(), la.getPort()));
    final ServletHandler handler = new ServletHandler();
    handler.addServletWithMapping(new ServletHolder(new Servlet(new Pipeline(
        this.processorFactory))), "/");
    this.server.setHandler(handler);
  }

  /**
   * 
   */
  public void start() {
    try {
      this.server.start();
      this.server.join();
    } catch (final Exception e) {
      LoggerFactory.getLogger(Server.class).error(
          "Failed to start jetty server", e);
    }
  }

  /**
   * 
   */
  public void stop() {
    try {
      this.server.stop();
      cleanup();
    } catch (final Exception e) {
      LoggerFactory.getLogger(Server.class).error(
          "Failed to stop jetty server", e);
    }
  }

  private void cleanup() {
    this.processorFactory.dispose();
  }

  private synchronized String getVersion() {
    if (this.version != null) {
      return this.version;
    }
    String v = "Smaller(development)";
    final InputStream is = Server.class.getClassLoader().getResourceAsStream(
        "META-INF/maven/de.matrixweb.smaller/server/pom.xml");
    if (is != null) {
      final DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
      Document doc;
      try {
        final DocumentBuilder db = dbf.newDocumentBuilder();
        doc = db.parse(is);
        v = "Smaller("
            + doc.getElementsByTagName("version").item(0).getTextContent()
            + ")";
      } catch (final Exception e) {
        LOGGER.warn("Failed to get version info from pom", e);
      }
    }
    this.version = v;
    return this.version;
  }

}