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/*
* File: AbstractDelegatingOutputStream.java
*
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*
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* the Common Development and Distribution License 1.0 (the "License").
*
* You may not use this file except in compliance with the License.
*
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*
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* file and include the License file LICENSE.txt.
*
* MODIFICATIONS:
* If applicable, add the following below the License Header, with the fields
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*/
package com.oracle.bedrock.runtime.java.container;
import com.oracle.bedrock.annotations.Internal;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
/**
* An {@link AbstractDelegatingOutputStream} is a {@link FilterOutputStream}
* that delegates output to an appropriate {@link Scope}
* {@link OutputStream}.
*
* Copyright (c) 2011. All Rights Reserved. Oracle Corporation.
* Oracle is a registered trademark of Oracle Corporation and/or its affiliates.
*
* @author Brian Oliver
*/
@Internal
public abstract class AbstractDelegatingOutputStream extends FilterOutputStream
{
/**
* Constructs a {@link AbstractDelegatingOutputStream}
*
* @param outputStream the {@link OutputStream} to which to submit output
* when a {@link Scope} can't be acquired
* for a calling {@link Thread}
*/
public AbstractDelegatingOutputStream(OutputStream outputStream)
{
super(outputStream);
}
/**
* {@inheritDoc}
*/
@Override
public void write(int value) throws IOException
{
ContainerScope scope = Container.getContainerScope();
if (scope == null)
{
super.out.write(value);
}
else
{
getOutputStreamFor(scope).write(value);
}
}
/**
* Obtains the {@link OutputStream} from the {@link Scope} to
* which output will be delegated.
*
* @param scope the {@link Scope}
*
* @return the {@link OutputStream} for the {@link Scope}
*/
public abstract OutputStream getOutputStreamFor(Scope scope);
}