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/*
* Copyright (c) 2013 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Christian W. Damus (CEA LIST) - initial API and implementation
*/
package org.eclipse.emf.cdo.common.lob;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
/**
* An {@link OutputStream} that produces a {@link #getBlob() CDOBlob}.
*
* @author Christian W. Damus (CEA LIST)
* @since 4.3
*/
public class CDOBlobOutputStream extends OutputStream
{
private ByteArrayOutputStream buffer = new ByteArrayOutputStream();
private CDOBlob blob;
@Override
public void write(int b) throws IOException
{
checkBuffer();
buffer.write(b);
}
@Override
public void write(byte[] b, int off, int len) throws IOException
{
checkBuffer();
buffer.write(b, off, len);
}
@Override
public void close() throws IOException
{
if (buffer != null)
{
blob = new CDOBlob(new ByteArrayInputStream(buffer.toByteArray()));
buffer = null;
}
}
@Override
public void flush() throws IOException
{
checkBuffer();
buffer.flush();
}
public CDOBlob getBlob()
{
return blob;
}
void checkBuffer() throws IOException
{
if (buffer == null)
{
throw new IOException("CDOBlobOutputStream closed"); //$NON-NLS-1$
}
}
}
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