Android Open Source - android_retrieval_system Image Packet

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * This file is part of Android retrieval system project.
 * //from www .j  a v a 2  s .co  m
 * Android retrieval system is free software: you can redistribute it
 * and/or modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version. 
 * 
 * Android retrieval system is distributed in the hope that
 * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with Android retrieval system. If not, see <http://www.gnu.org/licenses/>.
 */

package net.deerhunter.ars.protocol.packets;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;

/**
 * This class contains all the information and methods needed to send the
 * image to the server.
 * 
 * @author DeerHunter (vityokkv73@gmail.com)
 */
public class ImagePacket extends BasePacket {
  private String displayName;
  private String filePath;
  private int storeId;
  private long dateAdded;
  private byte[] image;

  private byte[] binaryPacket;

  /**
   * Constructs a new ImagePacket using all necessary parameters.
   * 
   * @param displayName Name of the image
   * @param filePath Full path to the image
   * @param storeId Store ID of the image in the database
   * @param dateAdded Date when the image was added
   * @param image Byte array of the image
   */
  public ImagePacket(String displayName, String filePath, int storeId, long dateAdded, byte[] image) {
    this.displayName = displayName;
    this.filePath = filePath;
    this.storeId = storeId;
    this.dateAdded = dateAdded;
    this.image = image;
    generateBinaryPacket();
  }

  /**
   * Method generates a binary representation of a image packet.
   */
  private void generateBinaryPacket() {
    ByteArrayOutputStream outputArray = new ByteArrayOutputStream(100000);
    try {
      Charset UTF8Charset = Charset.forName("UTF-8");

      formatWriteStringToArray(outputArray, displayName, UTF8Charset);
      formatWriteStringToArray(outputArray, filePath, UTF8Charset);

      ByteBuffer intArray = ByteBuffer.allocate(4);
      intArray.putInt(storeId);
      outputArray.write(intArray.array());

      ByteBuffer longArray = ByteBuffer.allocate(8);
      longArray.putLong(dateAdded);
      outputArray.write(longArray.array());

      intArray.clear();
      intArray.putInt(image.length);
      outputArray.write(intArray.array());

      outputArray.write(image);

      binaryPacket = outputArray.toByteArray();
    } catch (IOException e) {}
  }

  /**
   * Method returns name of the image.
   * 
   * @return Name of the image
   */
  public String getDisplayName() {
    return displayName;
  }

  /**
   * Method returns a path to the image.
   * 
   * @return Path to the image
   */
  public String getFilePath() {
    return filePath;
  }

  /**
   * Method returns a store ID of the image.
   * 
   * @return Store ID of the image
   */
  public int getStoreId() {
    return storeId;
  }

  /**
   * Method returns a date when the image was added.
   * 
   * @return Date when the image was added
   */
  public long getDateAdded() {
    return dateAdded;
  }

  /**
   * Method returns a byte array of the image.
   * 
   * @return Byte array of the image
   */
  public byte[] getImage() {
    return image;
  }

  /**
   * Method returns a binary representation of a thumbnail packet.
   * 
   * @return binary representation of a thumbnail packet
   */
  public byte[] getBinaryPacket() {
    return binaryPacket;
  }

  @Override
  public String toString() {
    StringBuilder builder = new StringBuilder(300);
    builder.append("ImagePacket { ");
    builder.append("displayName = " + displayName);
    builder.append(", filePath = " + filePath);
    builder.append(", storeId = " + storeId);
    builder.append(", dateAdded = " + dateAdded);
    builder.append(" }");
    return builder.toString();
  }
}

Java Source Code List

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