org.apache.shale.test.mock.MockHttpServletResponse Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to you 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.apache.shale.test.mock;
import java.io.ByteArrayOutputStream;
import java.io.CharArrayWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.TimeZone;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletResponse;
/**
* Mock implementation of HttpServletResponse.
*
* $Id$
*/
public class MockHttpServletResponse implements HttpServletResponse {
// ------------------------------------------------------------ Constructors
/**
* Return a default instance.
*/
public MockHttpServletResponse() { }
// ----------------------------------------------------- Mock Object Methods
/**
* Retrieve the first value that was set for the specified header,
* if any. Otherwise, return null.
*
* @param name Header name to look up
*/
public String getHeader(String name) {
String match = name + ":";
Iterator headers = this.headers.iterator();
while (headers.hasNext()) {
String header = (String) headers.next();
if (header.startsWith(match)) {
return header.substring(match.length() + 1).trim();
}
}
return null;
}
/**
* Return the text message for the HTTP status that was set.
*/
public String getMessage() {
return this.message;
}
/**
* Return the HTTP status code that was set.
*/
public int getStatus() {
return this.status;
}
/**
* Set the ServletOutputStream to be returned by a call to
* getOutputStream().
*
* @param stream The ServletOutputStream instance to use
*
* @deprecated Let the getOutputStream() method create and
* return an instance of MockServletOutputStream for you
*/
public void setOutputStream(ServletOutputStream stream) {
this.stream = stream;
}
/**
* Set the PrintWriter to be returned by a call to
* getWriter().
*
* @param writer The PrintWriter instance to use
*
* @deprecated Let the getWriter() method create and return
* an instance of MockPrintWriter for you
*/
public void setWriter(PrintWriter writer) {
this.writer = writer;
}
// ------------------------------------------------------ Instance Variables
private String encoding = "ISO-8859-1";
private String contentType = "text/html";
private List headers = new ArrayList();
private String message = null;
private int status = HttpServletResponse.SC_OK;
private ServletOutputStream stream = null;
private PrintWriter writer = null;
// -------------------------------------------- HttpServletResponse Methods
/** {@inheritDoc} */
public void addCookie(Cookie cookie) {
throw new UnsupportedOperationException();
}
/** {@inheritDoc} */
public void addDateHeader(String name, long value) {
headers.add(name + ": " + formatDate(value));
}
/** {@inheritDoc} */
public void addHeader(String name, String value) {
headers.add(name + ": " + value);
}
/** {@inheritDoc} */
public void addIntHeader(String name, int value) {
headers.add(name + ": " + value);
}
/** {@inheritDoc} */
public boolean containsHeader(String name) {
return getHeader(name) != null;
}
/** {@inheritDoc} */
public String encodeRedirectUrl(String url) {
return encodeRedirectURL(url);
}
/** {@inheritDoc} */
public String encodeRedirectURL(String url) {
return url;
}
/** {@inheritDoc} */
public String encodeUrl(String url) {
return encodeURL(url);
}
/** {@inheritDoc} */
public String encodeURL(String url) {
return url;
}
/** {@inheritDoc} */
public void sendError(int status) {
this.status = status;
}
/** {@inheritDoc} */
public void sendError(int status, String message) {
this.status = status;
this.message = message;
}
/** {@inheritDoc} */
public void sendRedirect(String location) {
this.status = HttpServletResponse.SC_MOVED_TEMPORARILY;
this.message = location;
}
/** {@inheritDoc} */
public void setDateHeader(String name, long value) {
removeHeader(name);
addDateHeader(name, value);
}
/** {@inheritDoc} */
public void setHeader(String name, String value) {
removeHeader(name);
addHeader(name, value);
}
/** {@inheritDoc} */
public void setIntHeader(String name, int value) {
removeHeader(name);
addIntHeader(name, value);
}
/** {@inheritDoc} */
public void setStatus(int status) {
throw new UnsupportedOperationException();
}
/** {@inheritDoc} */
public void setStatus(int status, String message) {
throw new UnsupportedOperationException();
}
// ------------------------------------------------ ServletResponse Methods
/** {@inheritDoc} */
public void flushBuffer() {
throw new UnsupportedOperationException();
}
/** {@inheritDoc} */
public int getBufferSize() {
throw new UnsupportedOperationException();
}
/** {@inheritDoc} */
public String getCharacterEncoding() {
return this.encoding;
}
/** {@inheritDoc} */
public String getContentType() {
return this.contentType;
}
/** {@inheritDoc} */
public Locale getLocale() {
throw new UnsupportedOperationException();
}
/** {@inheritDoc} */
public ServletOutputStream getOutputStream() throws IOException {
if (stream == null) {
if (writer != null) {
throw new IllegalStateException("Cannot call getOutputStream() after getWriter() has been called");
}
stream = new MockServletOutputStream(new ByteArrayOutputStream());
}
return stream;
}
/** {@inheritDoc} */
public PrintWriter getWriter() throws IOException {
if (writer == null) {
if (stream != null) {
throw new IllegalStateException("Cannot call getWriter() after getOutputStream() was called");
}
writer = new MockPrintWriter(new CharArrayWriter());
}
return writer;
}
/** {@inheritDoc} */
public boolean isCommitted() {
throw new UnsupportedOperationException();
}
/** {@inheritDoc} */
public void reset() {
throw new UnsupportedOperationException();
}
/** {@inheritDoc} */
public void resetBuffer() {
throw new UnsupportedOperationException();
}
/** {@inheritDoc} */
public void setBufferSize(int size) {
throw new UnsupportedOperationException();
}
/** {@inheritDoc} */
public void setCharacterEncoding(String charset) {
this.encoding = charset;
}
/** {@inheritDoc} */
public void setContentLength(int length) {
throw new UnsupportedOperationException();
}
/** {@inheritDoc} */
public void setContentType(String type) {
contentType = type;
}
/** {@inheritDoc} */
public void setLocale(Locale locale) {
throw new UnsupportedOperationException();
}
// --------------------------------------------------------- Private Methods
/**
* The date formatting helper we will use in httpTimestamp().
* Note that usage of this helper must be synchronized.
*/
private static SimpleDateFormat format =
new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss zzz");
static {
format.setTimeZone(TimeZone.getTimeZone("GMT"));
}
/**
* Return a properly formatted String version of the specified
* date/time, formatted as required by the HTTP specification.
*
* @param date Date/time, expressed as milliseconds since the epoch
*/
private String formatDate(long date) {
return format.format(new Date(date));
}
/**
* Remove any header that has been set with the specific name.
*
* @param name Header name to look up
*/
private void removeHeader(String name) {
String match = name + ":";
Iterator headers = this.headers.iterator();
while (headers.hasNext()) {
String header = (String) headers.next();
if (header.startsWith(match)) {
headers.remove();
return;
}
}
}
}