Android Shell Run findProcessId(String command)

Description

find Process Id

License

Open Source License

Declaration

public static int findProcessId(String command) 

Method Source Code

//package com.java2s;
/* See LICENSE for licensing information */

import java.io.BufferedReader;
import java.io.File;

import java.io.InputStreamReader;

import java.net.URLEncoder;
import java.util.StringTokenizer;
import android.util.Log;

public class Main {
    private final static String TAG = "TorUtils";
    public final static String SHELL_CMD_PS = "ps";
    public final static String SHELL_CMD_PIDOF = "pidof";

    public static int findProcessId(String command) {
        int procId = -1;

        try {//  w w  w. j a v a2 s . c om
            procId = findProcessIdWithPidOf(command);

            if (procId == -1)
                procId = findProcessIdWithPS(command);
        } catch (Exception e) {
            try {
                procId = findProcessIdWithPS(command);
            } catch (Exception e2) {
                Log.e(TAG, "Unable to get proc id for command: "
                        + URLEncoder.encode(command), e2);
            }
        }

        return procId;
    }

    public static int findProcessIdWithPidOf(String command)
            throws Exception {

        int procId = -1;

        Runtime r = Runtime.getRuntime();

        Process procPs = null;

        String baseName = new File(command).getName();
        // fix contributed my mikos on 2010.12.10
        procPs = r.exec(new String[] { SHELL_CMD_PIDOF, baseName });
        // procPs = r.exec(SHELL_CMD_PIDOF);

        BufferedReader reader = new BufferedReader(new InputStreamReader(
                procPs.getInputStream()));
        String line = null;

        while ((line = reader.readLine()) != null) {

            try {
                // this line should just be the process id
                procId = Integer.parseInt(line.trim());
                break;
            } catch (NumberFormatException e) {
                Log.e("TorServiceUtils", "unable to parse process pid: "
                        + line, e);
            }
        }

        return procId;

    }

    public static int findProcessIdWithPS(String command) throws Exception {

        int procId = -1;

        Runtime r = Runtime.getRuntime();

        Process procPs = null;

        procPs = r.exec(SHELL_CMD_PS);

        BufferedReader reader = new BufferedReader(new InputStreamReader(
                procPs.getInputStream()));
        String line = null;

        while ((line = reader.readLine()) != null) {
            if (line.indexOf(' ' + command) != -1) {

                StringTokenizer st = new StringTokenizer(line, " ");
                st.nextToken(); // proc owner

                procId = Integer.parseInt(st.nextToken().trim());

                break;
            }
        }

        return procId;

    }
}

Related

1. executeCommand(String command)
2. normalShell(String normalCommand)
3. runAsRoot(String[] commands)
4. runSimpleCommand(String command, String directory)
5. doShellCommand(String[] cmds, StringBuilder log, boolean runAsRoot, boolean waitFor)
6. findProcessIdWithPidOf(String command)
7. findProcessIdWithPS(String command)
8. execRootCmd(String cmd)
9. execRootCmdSilent(String cmd)