分享一个项目中用到的日志统计并提交服务器的日志工具类.
通过过得当前app的PID，采用命令行的方式实用logcat工具过滤日志。
源码如下：
项目地址：http://code.google.com/p/andutils/
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package org.and.util;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.util.ArrayList;
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import java.util.List;
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import android.content.Context;
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import android.os.Environment;
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/** |
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* TODO: log日志统计保存、上传-工具类
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*
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* @author hljdrl@gmail.com
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* @date 2012-8-27 上午11:43:52
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*/
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public class LogcatHelper {
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private static LogcatHelper INSTANCE = null;
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private static String PATH_LOGCAT ;
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private LogDumper mLogDumper = null;
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private Context mContext;
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private int mPId;
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/**
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* 初始化目录
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* */
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public static void init(Context context)
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{
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StringBuffer LogPath = new StringBuffer();
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LogPath.append(Environment.getExternalStorageDirectory());
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LogPath.append("/Android/data/");
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LogPath.append(context.getPackageName()).append("/");
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LogPath.append("logs").append("/");
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PATH_LOGCAT = LogPath.toString();
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//
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File file =new File(PATH_LOGCAT);
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if(!file.exists()){
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file.mkdirs(); |
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} |
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}
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public static LogcatHelper getInstance(Context context)
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{
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if(INSTANCE == null){
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INSTANCE = new LogcatHelper(context);
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}
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return INSTANCE;
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}
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private LogcatHelper(Context context) {
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mContext = context;
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mPId = android.os.Process.myPid();
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} |
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public void start() {
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if(mLogDumper==null){
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mLogDumper = new LogDumper(String.valueOf(mPId),PATH_LOGCAT);
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mLogDumper.start(); |
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} |
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} |
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public void stop()
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{ |
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if(mLogDumper!=null){
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mLogDumper.stopLogs(); |
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mLogDumper = null;
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} |
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} |
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public void sendLogMessage(Context context,String user)
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{ |
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if(mLogDumper!=null){
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mLogDumper.setLogFileLock(true);
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String file = mLogDumper.getLogFileName(); |
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File sendFile = new File(file);
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if(sendFile.exists() && sendFile.length()>2000){
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try{
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EmailHelper.sendMail(context, user, file); |
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}catch(Exception ex){
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ex.printStackTrace(); |
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} |
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File newFile = new File(file);
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try {
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newFile.createNewFile(); |
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} catch (IOException e) {
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e.printStackTrace(); |
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} |
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} |
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mLogDumper.setLogFileLock(false);
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} |
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} |
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private class LogDumper extends Thread{
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String fileName; |
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private Process logcatProc;
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private BufferedReader mReader = null;
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private boolean mRunning = false;
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String cmds=null;
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private final String mPID;
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private FileOutputStream out = null;
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private List<String> logsMessage = new ArrayList<String>();
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private boolean mLogFileLock = false;
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private String logFileName;
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public void setLogFileLock(boolean lock){
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mLogFileLock = lock; |
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} |
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public boolean isLogFileLock()
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{ |
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return mLogFileLock;
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} |
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public LogDumper(String pid,String file) {
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mPID = String.valueOf(pid); |
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fileName = file; |
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File mFile = new File(fileName,"error.txt");
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if(!mFile.exists()){
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try {
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mFile.createNewFile(); |
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} catch (IOException e) {
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e.printStackTrace(); |
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} |
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} |
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try {
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logFileName = mFile.toString(); |
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out = new FileOutputStream(mFile,true);
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} catch (FileNotFoundException e) {
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e.printStackTrace(); |
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} |
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/** |
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* 日志等级：*:v , *:d , *:w , *:e , *:f , *:s |
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* 显示当前mPID程序的 E和W等级的日志. |
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* */ |
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cmds ="logcat *:e *:w | grep \"("+mPID+")\"";
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} |
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public String getLogFileName()
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{ |
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return logFileName;
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} |
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public void stopLogs() {
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mRunning = false;
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} |
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private boolean checkFileMaxSize(String file){
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File sizefile = new File(file);
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if(sizefile.exists()){
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//1.5MB |
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if(sizefile.length()>1572864){
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return true;
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} |
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else {
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return false;
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} |
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}else {
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return false;
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} |
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} |
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@Override |
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public void run() {
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System.out.println("LogCatHelper'");
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mRunning = true;
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try {
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logcatProc = Runtime.getRuntime() |
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.exec(cmds); |
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mReader = new BufferedReader(new InputStreamReader(
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logcatProc.getInputStream()), 1024);
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String line = null;
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while (mRunning && (line = mReader.readLine()) != null) {
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if (!mRunning) {
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break;
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} |
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if (line.length() == 0) {
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continue;
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} |
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synchronized (out) {
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if (out != null) {
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boolean maxSize = checkFileMaxSize(getLogFileName());
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if(maxSize){
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//文件大小超过1.5mb |
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sendLogMessage(mContext, DeviceHelper.getInstance(mContext).getImei()); |
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} |
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if (isLogFileLock()) {
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if(line.contains(mPID)){
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logsMessage.add(line.getBytes() + "\n");
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} |
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} else {
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if(logsMessage.size()>0){
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for(String _log:logsMessage){
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out.write(_log.getBytes()); |
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} |
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logsMessage.clear(); |
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} |
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/** |
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* 再次过滤日志，筛选当前日志中有 mPID 则是当前程序的日志. |
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* */ |
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if(line.contains(mPID)){
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out.write(line.getBytes()); |
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out.write("\n".getBytes());
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} |
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} |
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} |
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} |
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} |
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} catch (IOException e) {
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e.printStackTrace(); |
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return;
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} finally {
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if (logcatProc != null) {
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logcatProc.destroy(); |
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logcatProc = null;
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} |
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if (mReader != null) {
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try {
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mReader.close(); |
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mReader = null;
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} catch (IOException e) {
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e.printStackTrace(); |
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} |
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} |
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if(out!=null){
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try {
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out.close(); |
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} catch (IOException e) {
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e.printStackTrace(); |
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} |
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out = null;
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} |
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} |
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} |
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} |
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} |