Android Open Source - IntelligentCarForAndroid Feature Server

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Back to project page IntelligentCarForAndroid.

License

The source code is released under:

Apache License

Java Source Code

/**
 * /*from  w w  w  .  j  a va2  s. c  o  m*/
 */
package org.davidsingleton.core;

import java.io.DataInputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;

/**
 * A TCP server which listens on port 6666 for connections from the NNRCCar android app.
 * 
 * The server reads streams of brightness features from video frames sent from the NNRCCar app and
 * notifies the {@link FeatureCallback} listener initialized in its constructor each time a full
 * set of features is received.
 */
public class FeatureServer {
  
//  class ServingThread extends Thread {
//    
//    private Socket sock;
//    
//    public ServingThread(Socket s) {
//      sock = s;
//    }
//    
//    @Override
//    public void run() {
//      try {
//        DataInputStream dis = new DataInputStream(sock.getInputStream());
//        while (true) {
//          /*
//           * The "protocol" for each set of features
//           * [width]  - int
//           * [height] - int
//           * [A = # accelerometer features] - int
//           * (width x height) x [brightness value] - width x height bytes
//           * A x [accelerometerValue]  - A ints
//           */
//          int width = dis.readInt();
//          int height = dis.readInt();
//          int accelerometerFeatureCount = dis.readInt();
//
//          //System.out.println("[" + width + "x" + height + "]");
//          int len = width * height;
//          byte[] features = new byte[width * height];
//          float[] accelerometerFeatures = new float[accelerometerFeatureCount];
//          
//          int read = 0;
//          while (read < len) {
//            read += dis.read(features, read, len - read);
//          }
//          for (int i = 0; i < accelerometerFeatureCount; i++) {
//            accelerometerFeatures[i] = dis.readFloat();
//          }
//          //System.out.println(len + " " + ((byte)features[0]));
//          listener.features(features, width, height, accelerometerFeatures);
//        }
//      } catch (IOException e) {
//        e.printStackTrace();
//      }
//    }
//  };
  
//  ServerSocket ss;
  private FeatureCallback listener;
  
  /**
   * Constructor for a new FeatureServer which will notify a {@link FeatureCallback} listener each time a full
   * set of features is received.
   * @param cb
   */
  public FeatureServer(FeatureCallback cb) {
    this.listener = cb;
//    try {
//      ss = new ServerSocket(9200);
//    } catch (IOException e) {
//      e.printStackTrace();
//    }
  }
  
  void sendNeuralNetwork(int w, int l)
  {
    try {
//      DataInputStream dis = new DataInputStream(sock.getInputStream());
      while (true) {
        /*
         * The "protocol" for each set of features
         * [width]  - int
         * [height] - int
         * [A = # accelerometer features] - int
         * (width x height) x [brightness value] - width x height bytes
         * A x [accelerometerValue]  - A ints
         */
        int width = w;
        int height = l;
        int accelerometerFeatureCount = 0;

        //System.out.println("[" + width + "x" + height + "]");
        int len = width * height;
        byte[] features = new byte[width * height];
        float[] accelerometerFeatures = new float[accelerometerFeatureCount];
        
//        int read = 0;
//        while (read < len) {
//          read += dis.read(features, read, len - read);
//        }
//        for (int i = 0; i < accelerometerFeatureCount; i++) {
//          accelerometerFeatures[i] = dis.readFloat();
//        }
        System.out.println(len + " " + ((byte)features[0]));
        listener.features(features, width, height, accelerometerFeatures);
      }
    } catch (Exception e) {
      e.printStackTrace();
    }

  }
  
  
  /**
   * Start listening for incoming TCP connections.  Starts the TCP server in its own new Thread.
   * @throws IOException
   */
//  void startServing() throws IOException {
//    while (true) {
//      Socket s = ss.accept();
//      ServingThread t = new ServingThread(s);
//      t.start();
//    }
//  }

}

Java Source Code List

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