1/*
2 * Copyright (C) 2015 Square, Inc.
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 */
16package okio;
17
18import java.io.IOException;
19import java.util.concurrent.TimeUnit;
20
21/** A {@link Timeout} which forwards calls to another. Useful for subclassing. */
22public class ForwardingTimeout extends Timeout {
23  private Timeout delegate;
24
25  public ForwardingTimeout(Timeout delegate) {
26    if (delegate == null) throw new IllegalArgumentException("delegate == null");
27    this.delegate = delegate;
28  }
29
30  /** {@link Timeout} instance to which this instance is currently delegating. */
31  public final Timeout delegate() {
32    return delegate;
33  }
34
35  public final ForwardingTimeout setDelegate(Timeout delegate) {
36    if (delegate == null) throw new IllegalArgumentException("delegate == null");
37    this.delegate = delegate;
38    return this;
39  }
40
41  @Override public Timeout timeout(long timeout, TimeUnit unit) {
42    return delegate.timeout(timeout, unit);
43  }
44
45  @Override public long timeoutNanos() {
46    return delegate.timeoutNanos();
47  }
48
49  @Override public boolean hasDeadline() {
50    return delegate.hasDeadline();
51  }
52
53  @Override public long deadlineNanoTime() {
54    return delegate.deadlineNanoTime();
55  }
56
57  @Override public Timeout deadlineNanoTime(long deadlineNanoTime) {
58    return delegate.deadlineNanoTime(deadlineNanoTime);
59  }
60
61  @Override public Timeout clearTimeout() {
62    return delegate.clearTimeout();
63  }
64
65  @Override public Timeout clearDeadline() {
66    return delegate.clearDeadline();
67  }
68
69  @Override public void throwIfReached() throws IOException {
70    delegate.throwIfReached();
71  }
72}
73