允许外部访问log文件，文本日志增加时间标记

src/main/java/com/virjar/ratel/api/extension/FileLogger.java

@@ -12,10 +12,15 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.io.OutputStreamWriter;
+import java.io.RandomAccessFile;
 import java.nio.charset.StandardCharsets;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Locale;
 import java.util.concurrent.BlockingDeque;
 import java.util.concurrent.LinkedBlockingDeque;
 
+import external.org.apache.commons.io.FileUtils;
 import external.org.apache.commons.io.IOUtils;
 
 public class FileLogger {
@@ -25,6 +30,11 @@ public class FileLogger {
     private static OutputStream outputStream = null;
     private static byte[] newLine = System.getProperty("line.separator", "\n").getBytes();
 
+    private static File mLogFile = null;
+
+    public static File getLogFile() {
+        return mLogFile;
+    }
 
     public synchronized static void startRecord(File baseDir) {
         if (syncLogThread != null) {
@@ -43,12 +53,25 @@ public class FileLogger {
 
 
         File filename = new File(dir, processName + ".txt");
+        mLogFile = filename;
         RposedBridge.log("filename:" + filename.getAbsolutePath());
         try {
             if (!filename.exists()) {
                 if (!filename.createNewFile()) {
                     RposedBridge.log("failed to create log file :" + filename.getAbsolutePath());
                 }
+            } else {
+                if (filename.length() > 20 * 1024 * 1024) {
+                    RandomAccessFile accessFile = new RandomAccessFile(filename, "r");
+                    long total = accessFile.length();
+                    long index = total - 10 * 1024 * 1024;
+                    if (index > 0) {
+                        accessFile.seek(index);
+                        byte[] bytes = new byte[11 * 1024 * 1024];
+                        int read = accessFile.read(bytes);
+                        FileUtils.writeByteArrayToFile(filename, bytes, 0, read);
+                    }
+                }
             }
             outputStream = new FileOutputStream(filename, true);
         } catch (IOException e) {
@@ -110,7 +133,7 @@ public class FileLogger {
             @Override
             public void handle(OutputStream outputStream) throws IOException {
                 OutputStreamWriter outputStreamWriter = new OutputStreamWriter(outputStream, StandardCharsets.UTF_8);
-                outputStreamWriter.write(message);
+                outputStreamWriter.write(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.CHINESE).format(new Date()) + message);
                 outputStreamWriter.flush();
 
             }
@@ -150,7 +173,8 @@ public class FileLogger {
             @Override
             public void handle(OutputStream outputStream) throws IOException {
                 OutputStreamWriter outputStreamWriter = new OutputStreamWriter(outputStream, StandardCharsets.UTF_8);
-                outputStreamWriter.append(tag);
+                outputStreamWriter.append(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.CHINESE).format(new Date()))
+                        .append(tag);
                 outputStreamWriter.append(message);
                 outputStreamWriter.flush();
             }
@@ -240,6 +264,7 @@ public class FileLogger {
     public static String getTrack(Throwable e) {
         StringBuilder msg = new StringBuilder("\n=============>\n");
         while (e != null) {
+            msg.append(e.getClass().getName()).append(":").append(e.getMessage()).append("\n");
             StackTraceElement[] ste = e.getStackTrace();
             for (StackTraceElement stackTraceElement : ste) {
                 msg.append(stackTraceElement.getClassName()).append(".").append(stackTraceElement.getMethodName()).append(":").append(stackTraceElement.getLineNumber()).append("\n");