Android Open Source - Gents Hello Server

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License

The source code is released under:
MIT License
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Java Source Code

package org.gsfraley.gents.service.servers.helloserver;
//  w  w  w  . j  a  va  2s  .  co 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 HelloServer extends ServerGhost implements OnSharedPreferenceChangeListener {

  public final static String NAME = "HelloServer";
  public final static String DESCRIPTION = "A server that just says \"hi\"!";
  
  public final static String SERVER_PORT = "server_port";
  public final static int DEFAULT_SERVER_PORT = 8080;
  
  public final static String DOC_TITLE = "doc_title";
  public final static String DEFAULT_DOC_TITLE = "Hello!";
  
  public final static String DOC_BODY = "doc_body";
  public final static String DEFAULT_DOC_BODY = "How are you?";
  
  private HelloServerContainer hsContainer;
  private SharedPreferences mPreferences;
  
  public boolean isConfigurable() { return true; }
  
  public String getName() {
    return NAME + ":" + Integer.toString(getServerId());
  }
  
  public String getDescription() {
    return DESCRIPTION;
  }
  
  public HelloServer(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() {
    hsContainer = new HelloServerContainer();
    hsContainer.run();
  }
  
  public void stopServer() {
    hsContainer.stopServer();
    hsContainer = null;
  }
  
  @Override
  public Intent configIntent() {
    Intent sendIntent = new Intent(getContext(), HelloServerPreferenceActivity.class);
    sendIntent.putExtra(HelloServerPreferenceActivity.SERVER_PREF_NAME, getName());
    return sendIntent;
  }
  
  public static class HelloServerInstance extends NanoHTTPD {
    String title, body;
    
    public HelloServerInstance(int port, String titleString, String bodyString) {
      super(port);
      title = titleString;
      body = bodyString;
    }
    
    @Override
      public Response serve(String uri, Method method, Map<String, String> header, Map<String, String> parms, Map<String, String> files) {
      String res =
          "<html>\n" +
          "<head><title>" + title + "</title></head>\n" +
          "<body>" + body + "</body>\n" +
          "</html>";
          return new Response(res);
      }
  }
  
  public class HelloServerContainer extends Thread {
    HelloServerInstance hsInstance;
    
    public HelloServerContainer() {
      super("HelloServerContainer");
      
      hsInstance = new HelloServerInstance(
          Integer.parseInt(mPreferences.getString(SERVER_PORT, Integer.toString(DEFAULT_SERVER_PORT))),
          mPreferences.getString(DOC_TITLE, DEFAULT_DOC_TITLE),
          mPreferences.getString(DOC_BODY, DEFAULT_DOC_BODY));
    }
    
    @Override
    public void run() {
      startServer();
    }
    
    public void startServer() {
      try {
        hsInstance.start();
      } catch (IOException e) {
        e.printStackTrace();
      }
    }
    
    public void stopServer() {
      hsInstance.stop();
    }
  }

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