content: /*
   * Copyright (C) 2007 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package android.ddm;
  
  import android.annotation.UnsupportedAppUsage;
  import org.apache.harmony.dalvik.ddmc.Chunk;
  import org.apache.harmony.dalvik.ddmc.ChunkHandler;
  import org.apache.harmony.dalvik.ddmc.DdmServer;
  import android.util.Log;
  import java.nio.ByteBuffer;
  
  
  /**
   * Track our app name.  We don't (currently) handle any inbound packets.
   */
  public class DdmHandleAppName extends ChunkHandler {
  
      public static final int CHUNK_APNM = type("APNM");
  
      private volatile static String mAppName = "";
  
      private static DdmHandleAppName mInstance = new DdmHandleAppName();
  
  
      /* singleton, do not instantiate */
      private DdmHandleAppName() {}
  
      /**
       * Register for the messages we're interested in.
       */
      public static void register() {}
  
      /**
       * Called when the DDM server connects.  The handler is allowed to
       * send messages to the server.
       */
      public void connected() {}
  
      /**
       * Called when the DDM server disconnects.  Can be used to disable
       * periodic transmissions or clean up saved state.
       */
      public void disconnected() {}
  
      /**
       * Handle a chunk of data.
       */
      public Chunk handleChunk(Chunk request) {
          return null;
      }
  
  
  
      /**
       * Set the application name.  Called when we get named, which may be
       * before or after DDMS connects.  For the latter we need to send up
       * an APNM message.
       */
      @UnsupportedAppUsage
      public static void setAppName(String name, int userId) {
          if (name == null || name.length() == 0)
              return;
  
          mAppName = name;
  
          // if DDMS is already connected, send the app name up
          sendAPNM(name, userId);
      }
  
      @UnsupportedAppUsage
      public static String getAppName() {
          return mAppName;
      }
  
      /*
       * Send an APNM (APplication NaMe) chunk.
       */
      private static void sendAPNM(String appName, int userId) {
          if (false)
              Log.v("ddm", "Sending app name");
  
          ByteBuffer out = ByteBuffer.allocate(
                              4 /* appName's length */
                              + appName.length()*2 /* appName */
                              + 4 /* userId */);
          out.order(ChunkHandler.CHUNK_ORDER);
          out.putInt(appName.length());
          putString(out, appName);
          out.putInt(userId);
  
          Chunk chunk = new Chunk(CHUNK_APNM, out);
          DdmServer.sendChunk(chunk);
      }
  
  }
  
  