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/*
* Copyright 2002-2016 the original author or authors.
*
* 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
*
* https://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.springframework.mock.web;
import java.io.IOException;
import java.io.OutputStream;
import javax.servlet.ServletOutputStream;
import javax.servlet.WriteListener;
import org.springframework.util.Assert;
/**
* Delegating implementation of {@link javax.servlet.ServletOutputStream}.
*
* Used by {@link MockHttpServletResponse}; typically not directly
* used for testing application controllers.
*
* @author Juergen Hoeller
* @since 1.0.2
* @see MockHttpServletResponse
*/
public class DelegatingServletOutputStream extends ServletOutputStream {
private final OutputStream targetStream;
/**
* Create a DelegatingServletOutputStream for the given target stream.
* @param targetStream the target stream (never {@code null})
*/
public DelegatingServletOutputStream(OutputStream targetStream) {
Assert.notNull(targetStream, "Target OutputStream must not be null");
this.targetStream = targetStream;
}
/**
* Return the underlying target stream (never {@code null}).
*/
public final OutputStream getTargetStream() {
return this.targetStream;
}
@Override
public void write(int b) throws IOException {
this.targetStream.write(b);
}
@Override
public void flush() throws IOException {
super.flush();
this.targetStream.flush();
}
@Override
public void close() throws IOException {
super.close();
this.targetStream.close();
}
@Override
public boolean isReady() {
return true;
}
@Override
public void setWriteListener(WriteListener writeListener) {
throw new UnsupportedOperationException();
}
}