1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.phone.common.mail.utility; 17 18 import java.io.IOException; 19 import java.io.OutputStream; 20 21 /** 22 * A simple pass-thru OutputStream that also counts how many bytes are written to it and 23 * makes that count available to callers. 24 */ 25 public class CountingOutputStream extends OutputStream { 26 private long mCount; 27 private final OutputStream mOutputStream; 28 CountingOutputStream(OutputStream outputStream)29 public CountingOutputStream(OutputStream outputStream) { 30 mOutputStream = outputStream; 31 } 32 getCount()33 public long getCount() { 34 return mCount; 35 } 36 37 @Override write(byte[] buffer, int offset, int count)38 public void write(byte[] buffer, int offset, int count) throws IOException { 39 mOutputStream.write(buffer, offset, count); 40 mCount += count; 41 } 42 43 @Override write(int oneByte)44 public void write(int oneByte) throws IOException { 45 mOutputStream.write(oneByte); 46 mCount++; 47 } 48 }