logcatログの取得


ケース:私たちのソフトウェアが携帯電話にインストールされている場合、ソフトウェア全体の実行状況を知る必要があるかもしれません.では、ソフトウェアの実行状況を記録し、どこかに保存する必要があります(ローカルファイル、以下は解決方法です).
直接コード:
package com.ifeng.fhdt.service;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Comparator;
import java.util.Date;
import java.util.List;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Environment;
import android.os.IBinder;
import android.os.PowerManager;
import android.os.PowerManager.WakeLock;
import android.util.Log;

/**
 *     ,        SDcar     SDcard              。
 * 1.      SDcard           ,
 * 2.   SDCard               SDCard 
 * 3.    SDCard,               
 * 4.SDcard           2,3   
 * 5.SDcard         7 
 * @author Administrator
 * 
 */
public class LogService extends Service {
	private static final String TAG = "LogService";

	private static final int MEMORY_LOG_FILE_MAX_SIZE = 10 * 1024 * 1024;			//          ,10M
	private static final int MEMORY_LOG_FILE_MONITOR_INTERVAL = 10 * 60 * 1000;		//                ,10  
	private static final int SDCARD_LOG_FILE_SAVE_DAYS = 7;							//sd             
	
	private String LOG_PATH_MEMORY_DIR;		//           (             )
	private String LOG_PATH_SDCARD_DIR;		//     sdcard    
	@SuppressWarnings("unused")
	private String LOG_SERVICE_LOG_PATH;	//        ,            
	
	private final int SDCARD_TYPE = 0;			//             SD   
	private final int MEMORY_TYPE = 1;			//                
	private int CURR_LOG_TYPE = SDCARD_TYPE;	//         
	
	private String CURR_INSTALL_LOG_NAME;	//            ,           
	
	private String logServiceLogName = "Log.log";//            
	private SimpleDateFormat myLogSdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
	private OutputStreamWriter writer;
	
	private SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HHmmss");//      
	
	private Process process;
	
	private WakeLock wakeLock;  
	
	private SDStateMonitorReceiver sdStateReceiver; //SDcard    
	private LogTaskReceiver logTaskReceiver; 
	
	/*             ;
	 *          SDcard   false
	 *               true*/
	private boolean logSizeMoniting = false;		
	
	private static String MONITOR_LOG_SIZE_ACTION = "MONITOR_LOG_SIZE";		//      action
	private static String SWITCH_LOG_FILE_ACTION = "SWITCH_LOG_FILE_ACTION";	//      action
	
	@Override
	public IBinder onBind(Intent intent) {
		return null;
	}

	@Override
	public void onCreate() {
		super.onCreate();
		init();
		register();
		deploySwitchLogFileTask();	
		new LogCollectorThread().start();
	}
	
	private void init(){
		LOG_PATH_MEMORY_DIR = getFilesDir().getAbsolutePath() + File.separator + "log";
		LOG_SERVICE_LOG_PATH = LOG_PATH_MEMORY_DIR + File.separator + logServiceLogName;
		LOG_PATH_SDCARD_DIR = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator
							+	"MyApp" + File.separator + "log";
		createLogDir();
		
		/* ******************************************************
		try {
			writer = new OutputStreamWriter(new FileOutputStream(
					LOG_SERVICE_LOG_PATH, true));
		} catch (FileNotFoundException e) {
			Log.e(TAG, e.getMessage(), e);
		}
		* ******************************************************/
		PowerManager pm = (PowerManager) getApplicationContext().getSystemService(Context.POWER_SERVICE);
		wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG);
		
		CURR_LOG_TYPE = getCurrLogType();
		Log.i(TAG, "LogService onCreate");
	}
	
	private void register(){
		IntentFilter sdCarMonitorFilter = new IntentFilter();
		sdCarMonitorFilter.addAction(Intent.ACTION_MEDIA_MOUNTED);
		sdCarMonitorFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED);
		sdCarMonitorFilter.addDataScheme("file");
		sdStateReceiver = new SDStateMonitorReceiver();
		registerReceiver(sdStateReceiver, sdCarMonitorFilter);
		
		IntentFilter logTaskFilter = new IntentFilter();
		logTaskFilter.addAction(MONITOR_LOG_SIZE_ACTION);
		logTaskFilter.addAction(SWITCH_LOG_FILE_ACTION);
		logTaskReceiver = new LogTaskReceiver();
		registerReceiver(logTaskReceiver,logTaskFilter);
	}
	
	
	
	/**
	 *                 SDCard 
	 * @return
	 */
	public int getCurrLogType(){
		if (!Environment.getExternalStorageState().equals(
				Environment.MEDIA_MOUNTED)) {
			return MEMORY_TYPE;
		}else{
			return SDCARD_TYPE;
		}
	}

	/**
	 *         ,          
	 */
	private void deploySwitchLogFileTask() {
		Intent intent = new Intent(SWITCH_LOG_FILE_ACTION);
		PendingIntent sender = PendingIntent.getBroadcast(this, 0, intent, 0);
		Calendar calendar = Calendar.getInstance();
		calendar.add(Calendar.DAY_OF_MONTH, 1);
		calendar.set(Calendar.HOUR_OF_DAY, 0);
		calendar.set(Calendar.MINUTE, 0);
		calendar.set(Calendar.SECOND, 0);

		//     
		AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
		am.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, sender);
		recordLogServiceLog("deployNextTask succ,next task time is:"+myLogSdf.format(calendar.getTime()));
	}

	/**
	 *     
	 * 1.       
	 * 2.          Logcat                
	 * 3.         
	 * 4.      
	 *      OR   
	 */
	class LogCollectorThread extends Thread {
		
		public LogCollectorThread(){
			super("LogCollectorThread");
			Log.d(TAG, "LogCollectorThread is create");
		}
		
		@Override
		public void run() {
			try {
				wakeLock.acquire();	//    
				
				clearLogCache();
				
				List<String> orgProcessList = getAllProcess();
				List<ProcessInfo> processInfoList = getProcessInfoList(orgProcessList);
				killLogcatProc(processInfoList);
				
				createLogCollector();
				
				Thread.sleep(1000);//  ,    ,      ,         ,       
				
				handleLog();
				
				wakeLock.release();	//  
			} catch (Exception e) {
				e.printStackTrace();
				recordLogServiceLog(Log.getStackTraceString(e));
			}
		}
	}
	
	/**
	 *                 ,                   
	 */
	private void clearLogCache() {
		Process proc = null;
		List<String> commandList = new ArrayList<String>();
		commandList.add("logcat");
		commandList.add("-c");
		try {
			proc = Runtime.getRuntime().exec(
					commandList.toArray(new String[commandList.size()]));
			StreamConsumer errorGobbler = new StreamConsumer(proc
					.getErrorStream());

			StreamConsumer outputGobbler = new StreamConsumer(proc
					.getInputStream());

			errorGobbler.start();
			outputGobbler.start();
			if (proc.waitFor() != 0) {
				Log.e(TAG, " clearLogCache proc.waitFor() != 0");
				recordLogServiceLog("clearLogCache clearLogCache proc.waitFor() != 0");
			}
		} catch (Exception e) {
			Log.e(TAG, "clearLogCache failed", e);
			recordLogServiceLog("clearLogCache failed");
		} finally {
			try {
				proc.destroy();
			} catch (Exception e) {
				Log.e(TAG, "clearLogCache failed", e);
				recordLogServiceLog("clearLogCache failed");
			}
		}
	}

	/**
	 *          logcat  :
	 *           (           Logcat         USER  )
	 *              logcat            
	 * 
	 * @param allProcList
	 * @return
	 */
	private void killLogcatProc(List<ProcessInfo> allProcList) {
		if(process != null){
			process.destroy();
		}
		String packName = this.getPackageName();
		String myUser = getAppUser(packName, allProcList);
		/*
		recordLogServiceLog("app user is:"+myUser);
		recordLogServiceLog("========================");
		for (ProcessInfo processInfo : allProcList) {
			recordLogServiceLog(processInfo.toString());
		}
		recordLogServiceLog("========================");
		*/
		for (ProcessInfo processInfo : allProcList) {
			if (processInfo.name.toLowerCase().equals("logcat")
					&& processInfo.user.equals(myUser)) {
				android.os.Process.killProcess(Integer
						.parseInt(processInfo.pid));
				//recordLogServiceLog("kill another logcat process success,the process info is:"
				//		+ processInfo);
			}
		}
	}

	/**
	 *           
	 * 
	 * @param packName
	 * @param allProcList
	 * @return
	 */
	private String getAppUser(String packName, List<ProcessInfo> allProcList) {
		for (ProcessInfo processInfo : allProcList) {
			if (processInfo.name.equals(packName)) {
				return processInfo.user;
			}
		}
		return null;
	}

	/**
	 *   ps         PID,User,name   
	 * 
	 * @param orgProcessList
	 * @return
	 */
	private List<ProcessInfo> getProcessInfoList(List<String> orgProcessList) {
		List<ProcessInfo> procInfoList = new ArrayList<ProcessInfo>();
		for (int i = 1; i < orgProcessList.size(); i++) {
			String processInfo = orgProcessList.get(i);
			String[] proStr = processInfo.split(" ");
			// USER PID PPID VSIZE RSS WCHAN PC NAME
			// root 1 0 416 300 c00d4b28 0000cd5c S /init
			List<String> orgInfo = new ArrayList<String>();
			for (String str : proStr) {
				if (!"".equals(str)) {
					orgInfo.add(str);
				}
			}
			if (orgInfo.size() == 9) {
				ProcessInfo pInfo = new ProcessInfo();
				pInfo.user = orgInfo.get(0);
				pInfo.pid = orgInfo.get(1);
				pInfo.ppid = orgInfo.get(2);
				pInfo.name = orgInfo.get(8);
				procInfoList.add(pInfo);
			}
		}
		return procInfoList;
	}

	/**
	 *   PS        
	 * 
	 * @return
	 * 			USER PID PPID VSIZE RSS WCHAN PC NAME
	 * 			root 1 0 416 300 c00d4b28 0000cd5c S /init
	 */
	private List<String> getAllProcess() {
		List<String> orgProcList = new ArrayList<String>();
		Process proc = null;
		try {
			proc = Runtime.getRuntime().exec("ps");
			StreamConsumer errorConsumer = new StreamConsumer(proc
					.getErrorStream());

			StreamConsumer outputConsumer = new StreamConsumer(proc
					.getInputStream(), orgProcList);

			errorConsumer.start();
			outputConsumer.start();
			if (proc.waitFor() != 0) {
				Log.e(TAG, "getAllProcess proc.waitFor() != 0");
				recordLogServiceLog("getAllProcess proc.waitFor() != 0");
			}
		} catch (Exception e) {
			Log.e(TAG, "getAllProcess failed", e);
			recordLogServiceLog("getAllProcess failed");
		} finally {
			try {
				proc.destroy();
			} catch (Exception e) {
				Log.e(TAG, "getAllProcess failed", e);
				recordLogServiceLog("getAllProcess failed");
			}
		}
		return orgProcList;
	}
	
	/**
	 *         
	 */
	public void createLogCollector() {
		String logFileName = sdf.format(new Date()) + ".log";//       
		List<String> commandList = new ArrayList<String>();
		commandList.add("logcat");
		commandList.add("-f");
		//commandList.add(LOG_PATH_INSTALL_DIR + File.separator + logFileName);
		commandList.add(getLogPath());
		commandList.add("-v");
		commandList.add("time");
		commandList.add("*:w");
		
		//commandList.add("*:E");//          

		//     TAG   
		// commandList.add("MyAPP:V");
		// commandList.add("*:S");
		try {
			process = Runtime.getRuntime().exec(
					commandList.toArray(new String[commandList.size()]));
			recordLogServiceLog("start collecting the log,and log name is:"+logFileName);
			// process.waitFor();
		} catch (Exception e) {
			Log.e(TAG, "CollectorThread == >" + e.getMessage(), e);
			recordLogServiceLog("CollectorThread == >" + e.getMessage());
		}
	}
	
	/**
	 *                     
	 * @return
	 */
	public String getLogPath(){
		createLogDir();
		String logFileName = sdf.format(new Date()) + ".log";//       
		if(CURR_LOG_TYPE == MEMORY_TYPE){
			CURR_INSTALL_LOG_NAME = logFileName;
			Log.d(TAG, "Log stored in memory, the path is:"+LOG_PATH_MEMORY_DIR + File.separator + logFileName);
			return LOG_PATH_MEMORY_DIR + File.separator + logFileName;
		}else{
			CURR_INSTALL_LOG_NAME = null;
			Log.d(TAG, "Log stored in SDcard, the path is:"+LOG_PATH_SDCARD_DIR + File.separator + logFileName);
			return LOG_PATH_SDCARD_DIR + File.separator + logFileName;
		}
	}
	
	/**
	 *       
	 * 1.                ,            
	 *               ,            
	 * 2.             SDCard ,  7      , 
	 * 	                SDCard ,           
	 *       
	 */
	public void handleLog(){
		if(CURR_LOG_TYPE == MEMORY_TYPE){
			deployLogSizeMonitorTask();
			deleteMemoryExpiredLog();
		}else{
			moveLogfile();
			cancelLogSizeMonitorTask();
			deleteSDcardExpiredLog();
		}
	}
	
	/**
	 *           
	 */
	private void deployLogSizeMonitorTask() {
		if(logSizeMoniting){	//         ,        
			return;
		}
		logSizeMoniting = true;
		Intent intent = new Intent(MONITOR_LOG_SIZE_ACTION);
		PendingIntent sender = PendingIntent.getBroadcast(this, 0, intent, 0);
		AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
		am.setRepeating(AlarmManager.RTC_WAKEUP,System.currentTimeMillis(), MEMORY_LOG_FILE_MONITOR_INTERVAL, sender);
		Log.d(TAG, "deployLogSizeMonitorTask() succ !");
		//recordLogServiceLog("deployLogSizeMonitorTask() succ ,start time is " + calendar.getTime().toLocaleString());
	}
	
	/**
	 *             
	 */  
	private void cancelLogSizeMonitorTask() {
		logSizeMoniting = false;
		AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
		Intent intent = new Intent(MONITOR_LOG_SIZE_ACTION);
		PendingIntent sender = PendingIntent.getBroadcast(this, 0, intent, 0);
		am.cancel(sender);
		
		Log.d(TAG, "canelLogSizeMonitorTask() succ");
	}
	
	/**
	 *                  
	 *                  
	 */
	private void checkLogSize(){
		if(CURR_INSTALL_LOG_NAME != null && !"".equals(CURR_INSTALL_LOG_NAME)){
			String path = LOG_PATH_MEMORY_DIR + File.separator + CURR_INSTALL_LOG_NAME;
			File file = new File(path);
			if(!file.exists()){
				return;
			}
			Log.d(TAG, "checkLog() ==> The size of the log is too big?");
			if(file.length() >= MEMORY_LOG_FILE_MAX_SIZE){
				Log.d(TAG, "The log's size is too big!");
				new LogCollectorThread().start();
			}
		}
	}
	
	/**
	 *       
	 */
	private void createLogDir() {
		File file = new File(LOG_PATH_MEMORY_DIR);
		boolean mkOk;
		if (!file.isDirectory()) {
			mkOk = file.mkdirs();
			if (!mkOk) {
				mkOk = file.mkdirs();
			}
		}

		/* ************************************
		file = new File(LOG_SERVICE_LOG_PATH);
		if (!file.exists()) {
			try {
				mkOk = file.createNewFile();
				if (!mkOk) {
					file.createNewFile();
				}
			} catch (IOException e) {
				Log.e(TAG, e.getMessage(), e);
			}
		}
		* ************************************/
		
		if (Environment.getExternalStorageState().equals(
				Environment.MEDIA_MOUNTED)) {
			file = new File(LOG_PATH_SDCARD_DIR);
			if (!file.isDirectory()) {
				mkOk = file.mkdirs();
				if (!mkOk) {
					recordLogServiceLog("move file failed,dir is not created succ");
					return;
				}
			}
		}
	}
	
	/**
	 *         SD   
	 */
	private void moveLogfile() {
		if (!Environment.getExternalStorageState().equals(
				Environment.MEDIA_MOUNTED)) {
			//recordLogServiceLog("move file failed, sd card does not mount");
			return;
		}
		File file = new File(LOG_PATH_SDCARD_DIR);
		if (!file.isDirectory()) {
			boolean mkOk = file.mkdirs();
			if (!mkOk) {
				//recordLogServiceLog("move file failed,dir is not created succ");
				return;
			}
		}

		file = new File(LOG_PATH_MEMORY_DIR);
		if (file.isDirectory()) {
			File[] allFiles = file.listFiles();
			for (File logFile : allFiles) {
				String fileName = logFile.getName();
				if (logServiceLogName.equals(fileName)) {
					continue;
				}
				//String createDateInfo = getFileNameWithoutExtension(fileName);
				boolean isSucc = copy(logFile, new File(LOG_PATH_SDCARD_DIR
							+ File.separator + fileName));
				if (isSucc) {
					logFile.delete();
					//recordLogServiceLog("move file success,log name is:"+fileName);
				}
			}
		}
	}

	/**
	 *           
	 */
	private void deleteSDcardExpiredLog() {
		File file = new File(LOG_PATH_SDCARD_DIR);
		if (file.isDirectory()) {
			File[] allFiles = file.listFiles();
			for (File logFile : allFiles) {
				String fileName = logFile.getName();
				if (logServiceLogName.equals(fileName)) {
					continue;
				}
				String createDateInfo = getFileNameWithoutExtension(fileName);
				if (canDeleteSDLog(createDateInfo)) {
					logFile.delete();
					Log.d(TAG, "delete expired log success,the log path is:"
							+ logFile.getAbsolutePath());

				}
			}
		}
	}
	
	/**
	 *   sdcard            
	 * @param createDateStr
	 * @return
	 */
	public boolean canDeleteSDLog(String createDateStr) {
		boolean canDel = false;
		Calendar calendar = Calendar.getInstance();
		calendar.add(Calendar.DAY_OF_MONTH, -1 * SDCARD_LOG_FILE_SAVE_DAYS);//  7     
		Date expiredDate = calendar.getTime();
		try {
			Date createDate = sdf.parse(createDateStr);
			canDel = createDate.before(expiredDate);
		} catch (ParseException e) {
			Log.e(TAG, e.getMessage(), e);
			canDel = false;
		}
		return canDel;
	}

	
	/**
	 *           ,    :
	 *                           
	 */
	private void deleteMemoryExpiredLog(){
		File file = new File(LOG_PATH_MEMORY_DIR);
		if (file.isDirectory()) {
			File[] allFiles = file.listFiles();
			Arrays.sort(allFiles, new FileComparator());
			for (int i=0;i<allFiles.length-2;i++) {	//"-2"           
				File _file =  allFiles[i];
				if (logServiceLogName.equals(_file.getName()) ||  _file.getName().equals(CURR_INSTALL_LOG_NAME)) {
					continue;
				}
				_file.delete();
				Log.d(TAG, "delete expired log success,the log path is:"+_file.getAbsolutePath());
			}
		}
	}
	
	/**
	 *     
	 * @param source
	 * @param target
	 * @return
	 */
	private boolean copy(File source, File target) {
		FileInputStream in = null;
		FileOutputStream out = null;
		try {
			if(!target.exists()){
				boolean createSucc = target.createNewFile();
				if(!createSucc){
					return false;
				}
			}
			in = new FileInputStream(source);
			out = new FileOutputStream(target);
			byte[] buffer = new byte[8*1024];
			int count;
			while ((count = in.read(buffer)) != -1) {
				out.write(buffer, 0, count);
			}
			return true;
		} catch (Exception e) {
			e.printStackTrace();
			Log.e(TAG, e.getMessage(), e);
			recordLogServiceLog("copy file fail");
			return false;
		} finally{
			try {
				if(in != null){
					in.close();
				}
				if(out != null){
					out.close();
				}
			} catch (IOException e) {
				e.printStackTrace();
				Log.e(TAG, e.getMessage(), e);
				recordLogServiceLog("copy file fail");
				return false;
			}
		}
		
	}

	/**
	 *                     , LogCat        
	 *       Log.log
	 * 
	 * @param msg
	 */
	private void recordLogServiceLog(String msg) {
		if (writer != null) {
			try {
				Date time = new Date();
				writer.write(myLogSdf.format(time) + " : " + msg);
				writer.write("
"); writer.flush(); } catch (IOException e) { e.printStackTrace(); Log.e(TAG, e.getMessage(), e); } } } /** * (.log) * @param fileName * @return */ private String getFileNameWithoutExtension(String fileName){ return fileName.substring(0, fileName.indexOf(".")); } class ProcessInfo { public String user; public String pid; public String ppid; public String name; @Override public String toString() { String str = "user=" + user + " pid=" + pid + " ppid=" + ppid + " name=" + name; return str; } } class StreamConsumer extends Thread { InputStream is; List<String> list; StreamConsumer(InputStream is) { this.is = is; } StreamConsumer(InputStream is, List<String> list) { this.is = is; this.list = list; } public void run() { try { InputStreamReader isr = new InputStreamReader(is); BufferedReader br = new BufferedReader(isr); String line = null; while ((line = br.readLine()) != null&&line.contains(getPackageName())) { if (list != null) { list.add(line); } } } catch (IOException ioe) { ioe.printStackTrace(); } } } /** * SD * @author Administrator * */ class SDStateMonitorReceiver extends BroadcastReceiver{ public void onReceive(Context context, Intent intent) { if(Intent.ACTION_MEDIA_UNMOUNTED.equals(intent.getAction())){ // if(CURR_LOG_TYPE == SDCARD_TYPE){ Log.d(TAG, "SDcar is UNMOUNTED"); CURR_LOG_TYPE = MEMORY_TYPE; new LogCollectorThread().start(); } }else{ // if(CURR_LOG_TYPE == MEMORY_TYPE){ Log.d(TAG, "SDcar is MOUNTED"); CURR_LOG_TYPE = SDCARD_TYPE; new LogCollectorThread().start(); } } } } /** * * , * @author Administrator * */ class LogTaskReceiver extends BroadcastReceiver{ public void onReceive(Context context, Intent intent) { String action = intent.getAction(); if(SWITCH_LOG_FILE_ACTION.equals(action)){ new LogCollectorThread().start(); }else if(MONITOR_LOG_SIZE_ACTION.equals(action)){ checkLogSize(); } } } class FileComparator implements Comparator<File>{ public int compare(File file1, File file2) { if(logServiceLogName.equals(file1.getName())){ return -1; }else if(logServiceLogName.equals(file2.getName())){ return 1; } String createInfo1 = getFileNameWithoutExtension(file1.getName()); String createInfo2 = getFileNameWithoutExtension(file2.getName()); try { Date create1 = sdf.parse(createInfo1); Date create2 = sdf.parse(createInfo2); if(create1.before(create2)){ return -1; }else{ return 1; } } catch (ParseException e) { return 0; } } } @Override public void onDestroy() { super.onDestroy(); recordLogServiceLog("LogService onDestroy"); if (writer != null) { try { writer.close(); } catch (IOException e) { e.printStackTrace(); } } if (process != null) { process.destroy(); } unregisterReceiver(sdStateReceiver); unregisterReceiver(logTaskReceiver); } }

 
さらに権限を追加します.
 <uses-permission android:name="android.permission.READ_LOGS" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />