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/*
* Copyright (C) 2012 The Guava Authors
*
* 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.common.io;
import com.google.common.collect.ImmutableSet;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
/**
* A byte sink for testing that has configurable behavior.
*
* @author Colin Decker
*/
public class TestByteSink extends ByteSink implements TestStreamSupplier {
private final ByteArrayOutputStream bytes = new ByteArrayOutputStream();
private final ImmutableSet<TestOption> options;
private boolean outputStreamOpened;
private boolean outputStreamClosed;
public TestByteSink(TestOption... options) {
this.options = ImmutableSet.copyOf(options);
}
byte[] getBytes() {
return bytes.toByteArray();
}
@Override
public boolean wasStreamOpened() {
return outputStreamOpened;
}
@Override
public boolean wasStreamClosed() {
return outputStreamClosed;
}
@Override
public OutputStream openStream() throws IOException {
outputStreamOpened = true;
bytes.reset(); // truncate
return new Out();
}
private final class Out extends TestOutputStream {
public Out() throws IOException {
super(bytes, options);
}
@Override
public void close() throws IOException {
outputStreamClosed = true;
super.close();
}
}
}
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