/*
* Copyright (C) 2014 Square, Inc.
*
* 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 okio;
import java.io.
IOException;
/** A {@link Sink} which forwards calls to another. Useful for subclassing. */
public abstract class
ForwardingSink implements
Sink {
private final
Sink delegate;
public
ForwardingSink(
Sink delegate) {
if (
delegate == null) throw new
IllegalArgumentException("delegate == null");
this.
delegate =
delegate;
}
/** {@link Sink} to which this instance is delegating. */
public final
Sink delegate() {
return
delegate;
}
@
Override public void
write(
Buffer source, long
byteCount) throws
IOException {
delegate.
write(
source,
byteCount);
}
@
Override public void
flush() throws
IOException {
delegate.
flush();
}
@
Override public
Timeout timeout() {
return
delegate.
timeout();
}
@
Override public void
close() throws
IOException {
delegate.
close();
}
@
Override public
String toString() {
return
getClass().
getSimpleName() + "(" +
delegate.
toString() + ")";
}
}