replicant-packages_apps_Email/emailcommon/src/com/android/emailcommon/utility/CountingOutputStream.java

50 lines
1.4 KiB
Java

/*
* Copyright (C) 2008 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 com.android.emailcommon.utility;
import java.io.IOException;
import java.io.OutputStream;
/**
* A simple pass-thru OutputStream that also counts how many bytes are written to it and
* makes that count available to callers.
*/
public class CountingOutputStream extends OutputStream {
private long mCount;
private final OutputStream mOutputStream;
public CountingOutputStream(OutputStream outputStream) {
mOutputStream = outputStream;
}
public long getCount() {
return mCount;
}
@Override
public void write(byte[] buffer, int offset, int count) throws IOException {
mOutputStream.write(buffer, offset, count);
mCount += count;
}
@Override
public void write(int oneByte) throws IOException {
mOutputStream.write(oneByte);
mCount++;
}
}