UpdateRequest.java :  » Client » daap-client » org » mult » daap » client » daap » request » Android Open Source

/*
 * Created on May 6, 2003
 * To change the template for this generated file go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 * Copyright 2003 Joseph Barnett
 * This File is part of "one 2 oh my god"
 * "one 2 oh my god" is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * Free Software Foundation; either version 2 of the License, or
 * your option) any later version.
 * "one 2 oh my god" 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 "one 2 oh my god"; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package org.mult.daap.client.daap.request;

import java.io.IOException;

import org.mult.daap.client.daap.DaapHost;

import android.util.Log;

/** @author jbarnett
 * @created July 15, 2004 */
public class UpdateRequest extends Request {
  private int mRevisionNumber = 0;

  public UpdateRequest(DaapHost h) throws BadResponseCodeException,
      PasswordFailedException, IOException {
    super(h);
    query("UpdateRequest");
    readResponse();
    process();
  }

  protected String getRequestString() {
    String ret = "update?";
    ret += "session-id=" + host.getSessionID();
    ret += "&revision-number=" + host.getRevisionNumber();
    return ret;
  }

  protected void addRequestProperties() {
    super.addRequestProperties();
    httpc.addRequestProperty("Host", host.getAddress());
  }

  protected void process() {
    if (data.length == 0) {
      Log.d("Request", "Zero Length");
      return;
    }
    offset += 4;
    offset += 4;
    processUpdateRequest();
  }

  public void processUpdateRequest() {
    String name;
    int size;
    while (offset < data.length) {
      name = readString(data, offset, 4);
      offset += 4;
      size = readInt(data, offset);
      offset += 4;
      if (size > 10000000)
        Log.d("Request", "This host probably uses gzip encoding");
      if (name.equals("musr")) {
        mRevisionNumber = readInt(data, offset); // read 4 bytes
        break;
      }
      offset += size;
    }
  }

  public int getRevNum() {
    return mRevisionNumber;
  }
}