/*
 * Copyright (c) 1997-2018 Oracle and/or its affiliates and others.
 * All rights reserved.
 * Copyright 2004 The Apache Software Foundation
 *
 * 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 javax.servlet.http;

import java.io.IOException;
import java.util.*;
import javax.servlet.ServletException;
import javax.servlet.ServletRequestWrapper;

Provides a convenient implementation of the HttpServletRequest interface that can be subclassed by developers wishing to adapt the request to a Servlet.

This class implements the Wrapper or Decorator pattern. Methods default to calling through to the wrapped request object.

See Also:
  • HttpServletRequest
Since:Servlet 2.3
/** * Provides a convenient implementation of the HttpServletRequest interface that can be subclassed by developers wishing * to adapt the request to a Servlet. * * <p> * This class implements the Wrapper or Decorator pattern. Methods default to calling through to the wrapped request * object. * * @see javax.servlet.http.HttpServletRequest * @since Servlet 2.3 */
public class HttpServletRequestWrapper extends ServletRequestWrapper implements HttpServletRequest {
Constructs a request object wrapping the given request.
Params:
Throws:
/** * Constructs a request object wrapping the given request. * * @param request the {@link HttpServletRequest} to be wrapped. * * @throws java.lang.IllegalArgumentException if the request is null */
public HttpServletRequestWrapper(HttpServletRequest request) { super(request); } private HttpServletRequest _getHttpServletRequest() { return (HttpServletRequest) super.getRequest(); }
The default behavior of this method is to return getAuthType() on the wrapped request object.
/** * The default behavior of this method is to return getAuthType() on the wrapped request object. */
@Override public String getAuthType() { return this._getHttpServletRequest().getAuthType(); }
The default behavior of this method is to return getCookies() on the wrapped request object.
/** * The default behavior of this method is to return getCookies() on the wrapped request object. */
@Override public Cookie[] getCookies() { return this._getHttpServletRequest().getCookies(); }
The default behavior of this method is to return getDateHeader(String name) on the wrapped request object.
/** * The default behavior of this method is to return getDateHeader(String name) on the wrapped request object. */
@Override public long getDateHeader(String name) { return this._getHttpServletRequest().getDateHeader(name); }
The default behavior of this method is to return getHeader(String name) on the wrapped request object.
/** * The default behavior of this method is to return getHeader(String name) on the wrapped request object. */
@Override public String getHeader(String name) { return this._getHttpServletRequest().getHeader(name); }
The default behavior of this method is to return getHeaders(String name) on the wrapped request object.
/** * The default behavior of this method is to return getHeaders(String name) on the wrapped request object. */
@Override public Enumeration<String> getHeaders(String name) { return this._getHttpServletRequest().getHeaders(name); }
The default behavior of this method is to return getHeaderNames() on the wrapped request object.
/** * The default behavior of this method is to return getHeaderNames() on the wrapped request object. */
@Override public Enumeration<String> getHeaderNames() { return this._getHttpServletRequest().getHeaderNames(); }
The default behavior of this method is to return getIntHeader(String name) on the wrapped request object.
/** * The default behavior of this method is to return getIntHeader(String name) on the wrapped request object. */
@Override public int getIntHeader(String name) { return this._getHttpServletRequest().getIntHeader(name); }

The default behavior of this method is to return getServletMapping() on the wrapped request object.

/** * <p> * The default behavior of this method is to return getServletMapping() on the wrapped request object. * </p> */
@Override public HttpServletMapping getHttpServletMapping() { return this._getHttpServletRequest().getHttpServletMapping(); }
The default behavior of this method is to return getMethod() on the wrapped request object.
/** * The default behavior of this method is to return getMethod() on the wrapped request object. */
@Override public String getMethod() { return this._getHttpServletRequest().getMethod(); }
The default behavior of this method is to return getPathInfo() on the wrapped request object.
/** * The default behavior of this method is to return getPathInfo() on the wrapped request object. */
@Override public String getPathInfo() { return this._getHttpServletRequest().getPathInfo(); }
The default behavior of this method is to return getPathTranslated() on the wrapped request object.
/** * The default behavior of this method is to return getPathTranslated() on the wrapped request object. */
@Override public String getPathTranslated() { return this._getHttpServletRequest().getPathTranslated(); }
The default behavior of this method is to return getContextPath() on the wrapped request object.
/** * The default behavior of this method is to return getContextPath() on the wrapped request object. */
@Override public String getContextPath() { return this._getHttpServletRequest().getContextPath(); }
The default behavior of this method is to return getQueryString() on the wrapped request object.
/** * The default behavior of this method is to return getQueryString() on the wrapped request object. */
@Override public String getQueryString() { return this._getHttpServletRequest().getQueryString(); }
The default behavior of this method is to return getRemoteUser() on the wrapped request object.
/** * The default behavior of this method is to return getRemoteUser() on the wrapped request object. */
@Override public String getRemoteUser() { return this._getHttpServletRequest().getRemoteUser(); }
The default behavior of this method is to return isUserInRole(String role) on the wrapped request object.
/** * The default behavior of this method is to return isUserInRole(String role) on the wrapped request object. */
@Override public boolean isUserInRole(String role) { return this._getHttpServletRequest().isUserInRole(role); }
The default behavior of this method is to return getUserPrincipal() on the wrapped request object.
/** * The default behavior of this method is to return getUserPrincipal() on the wrapped request object. */
@Override public java.security.Principal getUserPrincipal() { return this._getHttpServletRequest().getUserPrincipal(); }
The default behavior of this method is to return getRequestedSessionId() on the wrapped request object.
/** * The default behavior of this method is to return getRequestedSessionId() on the wrapped request object. */
@Override public String getRequestedSessionId() { return this._getHttpServletRequest().getRequestedSessionId(); }
The default behavior of this method is to return getRequestURI() on the wrapped request object.
/** * The default behavior of this method is to return getRequestURI() on the wrapped request object. */
@Override public String getRequestURI() { return this._getHttpServletRequest().getRequestURI(); }
The default behavior of this method is to return getRequestURL() on the wrapped request object.
/** * The default behavior of this method is to return getRequestURL() on the wrapped request object. */
@Override public StringBuffer getRequestURL() { return this._getHttpServletRequest().getRequestURL(); }
The default behavior of this method is to return getServletPath() on the wrapped request object.
/** * The default behavior of this method is to return getServletPath() on the wrapped request object. */
@Override public String getServletPath() { return this._getHttpServletRequest().getServletPath(); }
The default behavior of this method is to return getSession(boolean create) on the wrapped request object.
/** * The default behavior of this method is to return getSession(boolean create) on the wrapped request object. */
@Override public HttpSession getSession(boolean create) { return this._getHttpServletRequest().getSession(create); }
The default behavior of this method is to return getSession() on the wrapped request object.
/** * The default behavior of this method is to return getSession() on the wrapped request object. */
@Override public HttpSession getSession() { return this._getHttpServletRequest().getSession(); }
The default behavior of this method is to return changeSessionId() on the wrapped request object.
Since:Servlet 3.1
/** * The default behavior of this method is to return changeSessionId() on the wrapped request object. * * @since Servlet 3.1 */
@Override public String changeSessionId() { return this._getHttpServletRequest().changeSessionId(); }
The default behavior of this method is to return isRequestedSessionIdValid() on the wrapped request object.
/** * The default behavior of this method is to return isRequestedSessionIdValid() on the wrapped request object. */
@Override public boolean isRequestedSessionIdValid() { return this._getHttpServletRequest().isRequestedSessionIdValid(); }
The default behavior of this method is to return isRequestedSessionIdFromCookie() on the wrapped request object.
/** * The default behavior of this method is to return isRequestedSessionIdFromCookie() on the wrapped request object. */
@Override public boolean isRequestedSessionIdFromCookie() { return this._getHttpServletRequest().isRequestedSessionIdFromCookie(); }
The default behavior of this method is to return isRequestedSessionIdFromURL() on the wrapped request object.
/** * The default behavior of this method is to return isRequestedSessionIdFromURL() on the wrapped request object. */
@Override public boolean isRequestedSessionIdFromURL() { return this._getHttpServletRequest().isRequestedSessionIdFromURL(); }
The default behavior of this method is to return isRequestedSessionIdFromUrl() on the wrapped request object.
Deprecated:As of Version 4.0 of the Java Servlet API, use isRequestedSessionIdFromURL instead.
/** * The default behavior of this method is to return isRequestedSessionIdFromUrl() on the wrapped request object. * * @deprecated As of Version 4.0 of the Java Servlet API, use {@link #isRequestedSessionIdFromURL} instead. */
@Deprecated @Override public boolean isRequestedSessionIdFromUrl() { return this._getHttpServletRequest().isRequestedSessionIdFromUrl(); }
The default behavior of this method is to call authenticate on the wrapped request object.
Since:Servlet 3.0
/** * The default behavior of this method is to call authenticate on the wrapped request object. * * @since Servlet 3.0 */
@Override public boolean authenticate(HttpServletResponse response) throws IOException, ServletException { return this._getHttpServletRequest().authenticate(response); }
The default behavior of this method is to call login on the wrapped request object.
Since:Servlet 3.0
/** * The default behavior of this method is to call login on the wrapped request object. * * @since Servlet 3.0 */
@Override public void login(String username, String password) throws ServletException { this._getHttpServletRequest().login(username, password); }
The default behavior of this method is to call login on the wrapped request object.
Since:Servlet 3.0
/** * The default behavior of this method is to call login on the wrapped request object. * * @since Servlet 3.0 */
@Override public void logout() throws ServletException { this._getHttpServletRequest().logout(); }
The default behavior of this method is to call getParts on the wrapped request object.

Any changes to the returned Collection must not affect this HttpServletRequestWrapper.

Since:Servlet 3.0
/** * The default behavior of this method is to call getParts on the wrapped request object. * * <p> * Any changes to the returned <code>Collection</code> must not affect this <code>HttpServletRequestWrapper</code>. * * @since Servlet 3.0 */
@Override public Collection<Part> getParts() throws IOException, ServletException { return this._getHttpServletRequest().getParts(); }
The default behavior of this method is to call getPart on the wrapped request object.
Since:Servlet 3.0
/** * The default behavior of this method is to call getPart on the wrapped request object. * * @since Servlet 3.0 */
@Override public Part getPart(String name) throws IOException, ServletException { return this._getHttpServletRequest().getPart(name); }
Create an instance of HttpUpgradeHandler for a given class and uses it for the http protocol upgrade processing.
Since:Servlet 3.1
/** * Create an instance of <code>HttpUpgradeHandler</code> for a given class and uses it for the http protocol upgrade * processing. * * @since Servlet 3.1 */
@Override public <T extends HttpUpgradeHandler> T upgrade(Class<T> handlerClass) throws IOException, ServletException { return this._getHttpServletRequest().upgrade(handlerClass); }
The default behavior of this method is to call newPushBuilder on the wrapped request object.
Since:Servlet 4.0
/** * The default behavior of this method is to call newPushBuilder on the wrapped request object. * * @since Servlet 4.0 */
@Override public PushBuilder newPushBuilder() { return this._getHttpServletRequest().newPushBuilder(); }
The default behavior of this method is to call getTrailerFields on the wrapped request object.
Since:Servlet 4.0
/** * The default behavior of this method is to call getTrailerFields on the wrapped request object. * * @since Servlet 4.0 */
@Override public Map<String, String> getTrailerFields() { return this._getHttpServletRequest().getTrailerFields(); }
The default behavior of this method is to call isTrailerFieldsReady on the wrapped request object.
Since:Servlet 4.0
/** * The default behavior of this method is to call isTrailerFieldsReady on the wrapped request object. * * @since Servlet 4.0 */
@Override public boolean isTrailerFieldsReady() { return this._getHttpServletRequest().isTrailerFieldsReady(); } }