Android example source code file (DdmHandleAppName.java)

This example Android source code file (DdmHandleAppName.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

android, bytebuffer, chunk, chunk_apnm, chunkhandler, ddmhandleappname, io, nio, sending, string, util, utilities, utils

The DdmHandleAppName.java Android example source code

/*
 * 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 org.apache.harmony.dalvik.ddmc.Chunk;
import org.apache.harmony.dalvik.ddmc.ChunkHandler;
import org.apache.harmony.dalvik.ddmc.DdmServer;
import android.util.Config;
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.
     */
    public static void setAppName(String name) {
        if (name == null || name.length() == 0)
            return;

        mAppName = name;

        // if DDMS is already connected, send the app name up
        sendAPNM(name);
    }

    public static String getAppName() {
        return mAppName;
    }

    /*
     * Send an APNM (APplication NaMe) chunk.
     */
    private static void sendAPNM(String appName) {
        if (Config.LOGV)
            Log.v("ddm", "Sending app name");

        ByteBuffer out = ByteBuffer.allocate(4 + appName.length()*2);
        out.order(ChunkHandler.CHUNK_ORDER);
        out.putInt(appName.length());
        putString(out, appName);

        Chunk chunk = new Chunk(CHUNK_APNM, out);
        DdmServer.sendChunk(chunk);
    }

}