/*
* 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
*
* 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.springframework.http;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.charset.Charset;
import static org.mockito.Mockito.spy;
/**
* @author Arjen Poutsma
* @author Rossen Stoyanchev
*/
public class MockHttpOutputMessage implements HttpOutputMessage {
private final HttpHeaders headers = new HttpHeaders();
private final ByteArrayOutputStream body = spy(new ByteArrayOutputStream());
private boolean headersWritten = false;
private final HttpHeaders writtenHeaders = new HttpHeaders();
@Override
public HttpHeaders getHeaders() {
return (this.headersWritten ? HttpHeaders.readOnlyHttpHeaders(this.headers) : this.headers);
}
/**
* Return a copy of the actual headers written at the time of the call to
* getResponseBody, i.e. ignoring any further changes that may have been made to
* the underlying headers, e.g. via a previously obtained instance.
*/
public HttpHeaders getWrittenHeaders() {
return writtenHeaders;
}
@Override
public OutputStream getBody() throws IOException {
writeHeaders();
return body;
}
public byte[] getBodyAsBytes() {
writeHeaders();
return body.toByteArray();
}
public String getBodyAsString(Charset charset) {
byte[] bytes = getBodyAsBytes();
return new String(bytes, charset);
}
private void writeHeaders() {
if (this.headersWritten) {
return;
}
this.headersWritten = true;
this.writtenHeaders.putAll(this.headers);
}
}