content: /*
   * Copyright (C) 2011 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package android.util;
  
  import android.annotation.UnsupportedAppUsage;
  import java.io.Writer;
  
  /** @hide */
  public class LogWriter extends Writer {
      private final int mPriority;
      private final String mTag;
      private final int mBuffer;
      private StringBuilder mBuilder = new StringBuilder(128);
  
      /**
       * Create a new Writer that sends to the log with the given priority
       * and tag.
       *
       * @param priority The desired log priority:
       * {@link android.util.Log#VERBOSE Log.VERBOSE},
       * {@link android.util.Log#DEBUG Log.DEBUG},
       * {@link android.util.Log#INFO Log.INFO},
       * {@link android.util.Log#WARN Log.WARN}, or
       * {@link android.util.Log#ERROR Log.ERROR}.
       * @param tag A string tag to associate with each printed log statement.
       */
      @UnsupportedAppUsage
      public LogWriter(int priority, String tag) {
          mPriority = priority;
          mTag = tag;
          mBuffer = Log.LOG_ID_MAIN;
      }
  
      /**
       * @hide
       * Same as above, but buffer is one of the LOG_ID_ constants from android.util.Log.
       */
      public LogWriter(int priority, String tag, int buffer) {
          mPriority = priority;
          mTag = tag;
          mBuffer = buffer;
      }
  
      @Override public void close() {
          flushBuilder();
      }
  
      @Override public void flush() {
          flushBuilder();
      }
  
      @Override public void write(char[] buf, int offset, int count) {
          for(int i = 0; i < count; i++) {
              char c = buf[offset + i];
              if ( c == '\n') {
                  flushBuilder();
              }
              else {
                  mBuilder.append(c);
              }
          }
      }
  
      private void flushBuilder() {
          if (mBuilder.length() > 0) {
              Log.println_native(mBuffer, mPriority, mTag, mBuilder.toString());
              mBuilder.delete(0, mBuilder.length());
          }
      }
  }
  