// Copyright 2015 The Bazel Authors. All rights reserved.
//
// 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.google.devtools.build.zip;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
/** An OutputStream that counts the number of bytes written. */
final class CountingOutputStream extends FilterOutputStream {
private long count;
/**
* Wraps another output stream, counting the number of bytes written.
*
* @param out the output stream to be wrapped
*/
public CountingOutputStream(OutputStream out) {
super(out);
}
/** Returns the number of bytes written. */
public long getCount() {
return count;
}
@Override public void write(int b) throws IOException {
out.write(b);
count++;
}
@Override public void write(byte[] b) throws IOException {
out.write(b);
count += b.length;
}
@Override public void write(byte[] b, int off, int len) throws IOException {
out.write(b, off, len);
count += len;
}
}