/*
* JBoss, Home of Professional Open Source
* Copyright 2009, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* 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.arquillian.warp.filter;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import javax.servlet.ServletOutputStream;
/**
* The implementation {@link ServletOutputStream} which caches all the written input and writes only when
* {@link #finallyWriteAndClose(ServletOutputStream)} method is called.
*
* @author Lukas Fryc
*
*/
public class NonWritingServletOutputStream extends ServletOutputStream {
private ByteArrayOutputStream baos = new ByteArrayOutputStream();
private boolean wasClosed = false;
public NonWritingServletOutputStream() {
super();
}
@Override
public void close() throws IOException {
wasClosed = true;
}
public void finallyWriteAndClose(ServletOutputStream delegate) throws IOException {
byte[] byteArray = baos.toByteArray();
delegate.write(byteArray);
if (wasClosed) {
delegate.close();
}
}
@Override
public void write(int b) throws IOException {
baos.write(b);
}
@Override
public void write(byte[] b) throws IOException {
baos.write(b);
}
@Override
public void write(byte[] b, int off, int len) throws IOException {
baos.write(b, off, len);
}
}