Android example source code file (AdbUtils.java)

This example Android source code file (AdbUtils.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

adb_host, adb_ok, adb_port, adb_response_size, adbutils, android, datainputstream, io, ioexception, logtag, net, network, okay, outputstream, socket, string, util, utilities

The AdbUtils.java Android example source code

/*
 * Copyright (C) 2009 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 com.android.dumprendertree.forwarder;

import android.util.Log;

import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;

public class AdbUtils {

    private static final String ADB_OK = "OKAY";
    private static final int ADB_PORT = 5037;
    private static final String ADB_HOST = "127.0.0.1";
    private static final int ADB_RESPONSE_SIZE = 4;

    private static final String LOGTAG = "AdbUtils";

    /**
     *
     * Convert integer format IP into xxx.xxx.xxx.xxx format
     *
     * @param host IP address in integer format
     * @return human readable format
     */
    public static String convert(int host) {
        return ((host >> 24) & 0xFF) + "."
        + ((host >> 16) & 0xFF) + "."
        + ((host >> 8) & 0xFF) + "."
        + (host & 0xFF);
    }

    /**
     *
     * Resolve DNS name into IP address
     *
     * @param host DNS name
     * @return IP address in integer format
     * @throws IOException
     */
    public static int resolve(String host)  throws IOException {
        Socket localSocket = new Socket(ADB_HOST, ADB_PORT);
        DataInputStream dis = new DataInputStream(localSocket.getInputStream());
        OutputStream os = localSocket.getOutputStream();
        int count_read = 0;

        if (localSocket == null || dis == null || os == null)
            return -1;
        String cmd = "dns:" + host;

        if(!sendAdbCmd(dis, os, cmd))
            return -1;

        count_read = dis.readInt();
        localSocket.close();
        return count_read;
    }

    /**
     *
     * Send an ADB command using existing socket connection
     *
     * the streams provided must be from a socket connected to adbd already
     *
     * @param is input stream of the socket connection
     * @param os output stream of the socket
     * @param cmd the adb command to send
     * @return if adb gave a success response
     * @throws IOException
     */
    public static boolean sendAdbCmd(InputStream is, OutputStream os,
            String cmd) throws IOException {
        byte[] buf = new byte[ADB_RESPONSE_SIZE];

        cmd = String.format("%04X", cmd.length()) + cmd;
        os.write(cmd.getBytes());
        int read = is.read(buf);
        if(read != ADB_RESPONSE_SIZE || !ADB_OK.equals(new String(buf))) {
            Log.w(LOGTAG, "adb cmd faild.");
            return false;
        }
        return true;
    }

    /**
     *
     * Get a tcp socket connection to specified IP address and port proxied by adb
     *
     * The proxying is transparent, e.g. if a socket is returned, then it can be written to and
     * read from as if it is directly connected to the target
     *
     * @param remoteAddress IP address of the host to connect to
     * @param remotePort port of the host to connect to
     * @return a valid Socket instance if successful, null otherwise
     */
    public static Socket getForwardedSocket(int remoteAddress, int remotePort) {
        try {
            Socket socket = new Socket(ADB_HOST, ADB_PORT);
            String cmd = "tcp:" + remotePort + ":" + convert(remoteAddress);
            if(!sendAdbCmd(socket.getInputStream(), socket.getOutputStream(), cmd)) {
                socket.close();
                return null;
            }
            return socket;
        } catch (IOException ioe) {
            Log.w(LOGTAG, "error creating adb socket", ioe);
            return null;
        }
    }
}