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/*
* Copyright 2002-2018 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.InputStream;
import javax.servlet.ReadListener;
import javax.servlet.ServletInputStream;
import org.springframework.util.Assert;
/**
* Delegating implementation of {@link javax.servlet.ServletInputStream}.
*
* Used by {@link MockHttpServletRequest}; typically not directly
* used for testing application controllers.
*
* @author Juergen Hoeller
* @since 1.0.2
* @see MockHttpServletRequest
*/
public class DelegatingServletInputStream extends ServletInputStream {
private final InputStream sourceStream;
private boolean finished = false;
/**
* Create a DelegatingServletInputStream for the given source stream.
* @param sourceStream the source stream (never {@code null})
*/
public DelegatingServletInputStream(InputStream sourceStream) {
Assert.notNull(sourceStream, "Source InputStream must not be null");
this.sourceStream = sourceStream;
}
/**
* Return the underlying source stream (never {@code null}).
*/
public final InputStream getSourceStream() {
return this.sourceStream;
}
@Override
public int read() throws IOException {
int data = this.sourceStream.read();
if (data == -1) {
this.finished = true;
}
return data;
}
@Override
public int available() throws IOException {
return this.sourceStream.available();
}
@Override
public void close() throws IOException {
super.close();
this.sourceStream.close();
}
@Override
public boolean isFinished() {
return this.finished;
}
@Override
public boolean isReady() {
return true;
}
@Override
public void setReadListener(ReadListener readListener) {
throw new UnsupportedOperationException();
}
}