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TestUnderFileSystemFileOutStream.java
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TestUnderFileSystemFileOutStream.java
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/*
* The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
* (the "License"). You may not use this work except in compliance with the License, which is
* available at www.apache.org/licenses/LICENSE-2.0
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied, as more fully set forth in the License.
*
* See the NOTICE file distributed with this work for information regarding copyright ownership.
*/
package alluxio.client.block.stream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.Arrays;
/**
* Test class for mocking {@link UnderFileSystemFileOutStream} and exposing internal state.
*/
public class TestUnderFileSystemFileOutStream extends UnderFileSystemFileOutStream {
private final ByteBuffer mData;
private boolean mClosed;
private boolean mCanceled;
/**
* Constructs a new {@link TestUnderFileSystemFileOutStream} to be used in tests.
*
* @param data the data to test
*/
public TestUnderFileSystemFileOutStream(ByteBuffer data) {
super(new TestPacketWriter(data), null);
mData = data;
mClosed = false;
mCanceled = false;
}
public byte[] getWrittenData() {
try {
super.flush();
} catch (IOException e) {
throw new RuntimeException(e);
}
return Arrays.copyOfRange(mData.array(), 0, mData.position());
}
public boolean isClosed() {
return mClosed;
}
public boolean isCanceled() {
return mCanceled;
}
@Override
public void close() throws IOException {
super.close();
mClosed = true;
}
@Override
public void cancel() throws IOException {
if (mClosed) {
return;
}
super.cancel();
mCanceled = true;
mClosed = true;
}
}