org.jboss.marshalling.ByteBufferOutput Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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 org.jboss.marshalling;
import java.io.EOFException;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.BufferOverflowException;
import java.nio.ByteBuffer;
import java.nio.ReadOnlyBufferException;
/**
* An {@code OutputStream} implementing {@code ByteOutput} which writes to a {@code ByteBuffer}.
*/
public class ByteBufferOutput extends OutputStream implements ByteOutput {
private static EOFException writePastEnd() {
return new EOFException("Write past end of buffer");
}
private static IOException readOnlyBuffer() {
return new IOException("Read only buffer");
}
private final ByteBuffer buffer;
/**
* Create a new instance.
*
* @param buffer the buffer to write to
*/
public ByteBufferOutput(final ByteBuffer buffer) {
this.buffer = buffer;
}
/** {@inheritDoc} */
public void write(final int b) throws IOException {
try {
buffer.put((byte)b);
} catch (BufferOverflowException e) {
throw writePastEnd();
} catch (ReadOnlyBufferException e) {
throw readOnlyBuffer();
}
}
/** {@inheritDoc} */
public void write(final byte[] b) throws IOException {
try {
buffer.put(b);
} catch (BufferOverflowException e) {
throw writePastEnd();
} catch (ReadOnlyBufferException e) {
throw readOnlyBuffer();
}
}
/** {@inheritDoc} */
public void write(final byte[] b, final int off, final int len) throws IOException {
try {
buffer.put(b, off, len);
} catch (BufferOverflowException e) {
throw writePastEnd();
} catch (ReadOnlyBufferException e) {
throw readOnlyBuffer();
}
}
/** {@inheritDoc} */
public void close() throws IOException {
}
/** {@inheritDoc} */
public void flush() throws IOException {
}
}