allow to change disk log destination

Author: renyuneyun

logger/src/main/java/com/orhanobut/logger/CsvFormatStrategy.java

@@ -1,10 +1,5 @@
 package com.orhanobut.logger;
 
-import android.os.Environment;
-import android.os.Handler;
-import android.os.HandlerThread;
-
-import java.io.File;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.Locale;
@@ -80,8 +75,6 @@ private String formatTag(String tag) {
   }
 
   public static final class Builder {
-    private static final int MAX_BYTES = 500 * 1024; // 500K averages to a 4000 lines per file
-
     Date date;
     SimpleDateFormat dateFormat;
     LogStrategy logStrategy;
@@ -118,13 +111,7 @@ public CsvFormatStrategy build() {
         dateFormat = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss.SSS", Locale.UK);
       }
       if (logStrategy == null) {
-        String diskPath = Environment.getExternalStorageDirectory().getAbsolutePath();
-        String folder = diskPath + File.separatorChar + "logger";
-
-        HandlerThread ht = new HandlerThread("AndroidFileLogger." + folder);
-        ht.start();
-        Handler handler = new DiskLogStrategy.WriteHandler(ht.getLooper(), folder, MAX_BYTES);
-        logStrategy = new DiskLogStrategy(handler);
+        logStrategy = DiskLogStrategy.newBuilder().build();
       }
       return new CsvFormatStrategy(this);
     }

logger/src/main/java/com/orhanobut/logger/DiskLogStrategy.java

@@ -1,6 +1,8 @@
 package com.orhanobut.logger;
 
+import android.os.Environment;
 import android.os.Handler;
+import android.os.HandlerThread;
 import android.os.Looper;
 import android.os.Message;
 
@@ -16,6 +18,10 @@ public class DiskLogStrategy implements LogStrategy {
 
   private final Handler handler;
 
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
   public DiskLogStrategy(Handler handler) {
     this.handler = handler;
   }
@@ -100,4 +106,45 @@ private File getLogFile(String folderName, String fileName) {
       return newFile;
     }
   }
+
+  public static final class Builder {
+    private static final int MAX_BYTES = 500 * 1024; // 500K averages to a 4000 lines per file
+
+    String directory;
+    HandlerThread ht;
+    Handler handler;
+
+    private Builder() {
+    }
+
+    public Builder directory(String directory) {
+      this.directory = directory;
+      return this;
+    }
+
+    public Builder handlerThread(HandlerThread ht) {
+      this.ht = ht;
+      return this;
+    }
+
+    public Builder handler(Handler handler) {
+      this.handler = handler;
+      return this;
+    }
+
+    public DiskLogStrategy build() {
+      if (directory == null) {
+        String diskPath = Environment.getExternalStorageDirectory().getAbsolutePath();
+        directory = diskPath + File.separatorChar + "logger";
+      }
+      if (ht == null) {
+        ht = new HandlerThread("AndroidFileLogger." + directory);
+        ht.start();
+      }
+      if (handler == null) {
+        handler = new DiskLogStrategy.WriteHandler(ht.getLooper(), directory, MAX_BYTES);
+      }
+      return new DiskLogStrategy(handler);
+    }
+  }
 }