Android Open Source - Gents Echo Server

From Project

Back to project page Gents.
License

The source code is released under:
MIT License
If you think the Android project Gents listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package org.gsfraley.gents.service.servers.echoserver;
//from  w  w  w .  ja  v a  2s .  c  o  m
import java.io.IOException;
import java.util.Map;

import org.gsfraley.gents.service.ServerGhost;

import fi.iki.elonen.NanoHTTPD;

import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;

public class EchoServer extends ServerGhost implements OnSharedPreferenceChangeListener {

  public final static String NAME = "EchoServer";
  public final static String DESCRIPTION = "A server that yells back!";
  
  public final static String SERVER_PORT = "server_port";
  public final static int DEFAULT_SERVER_PORT = 8080;
  
  public final static String DEFAULT_DOC_TITLE = "Say something!!";
  
  private EchoServerContainer esContainer;
  private SharedPreferences mPreferences;
  
  public boolean isConfigurable() { return true; }
  
  public String getName() {
    return NAME + ":" + Integer.toString(getServerId());
  }
  
  public String getDescription() {
    return DESCRIPTION;
  }
  
  public EchoServer(Context context, int sid) {
    super(context, sid);
    mPreferences = context.getSharedPreferences(getName(), Context.MODE_PRIVATE);
    mPreferences.registerOnSharedPreferenceChangeListener(this);
  }

  @Override
  public void start() {
    if(status == RUNNING) {
      return;
    }
    
    startServer();
    status = RUNNING;
  }

  @Override
  public void stop() {
    if(status == STOPPED) {
      return;
    }
    
    stopServer();
    status = STOPPED;
  }

  public void startServer() {
    esContainer = new EchoServerContainer();
    esContainer.run();
  }
  
  public void stopServer() {
    esContainer.stopServer();
    esContainer = null;
  }
  
  @Override
  public Intent configIntent() {
    Intent sendIntent = new Intent(getContext(), EchoServerPreferenceActivity.class);
    sendIntent.putExtra(EchoServerPreferenceActivity.SERVER_PREF_NAME, getName());
    return sendIntent;
  }
  
  public static class EchoServerInstance extends NanoHTTPD {
    String title;
    
    public EchoServerInstance(int port, String titleString) {
      super(port);
      title = titleString;
    }
    
    @Override
      public Response serve(String uri, Method method, Map<String, String> header, Map<String, String> parms, Map<String, String> files) {
      StringBuilder parmBuilder = new StringBuilder();
      
      for(String key : parms.keySet())
        if(key.length() < 22 || !key.substring(0,22).equals("NanoHttpd.QUERY_STRING"))
          parmBuilder.append(key + " = " + parms.get(key) + "\n<br>\n");
      
      String res =
          "<html>\n" +
          "<head><title>" + title + "</title></head>\n" +
          "<body>\n" +
          uri.substring(1) + "\n<br>\n" +
          "<blockquote style='font-family:monospace'>\n" +
          parmBuilder.toString() + "\n" +
          "</blockquote>\n" +
          "</body>\n" +
          "</html>";
          return new Response(res);
      }
  }
  
  public class EchoServerContainer extends Thread {
    EchoServerInstance esInstance;
    
    public EchoServerContainer() {
      super("EchoServerContainer");
      
      esInstance = new EchoServerInstance(
          Integer.parseInt(mPreferences.getString(SERVER_PORT, Integer.toString(DEFAULT_SERVER_PORT))),
          DEFAULT_DOC_TITLE);
    }
    
    @Override
    public void run() {
      startServer();
    }
    
    public void startServer() {
      try {
        esInstance.start();
      } catch (IOException e) {
        e.printStackTrace();
      }
    }
    
    public void stopServer() {
      esInstance.stop();
    }
  }

  @Override
  public void onSharedPreferenceChanged(SharedPreferences arg0, String arg1) {
    restart();
  }
}
Java Source Code List
