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## org.apache.struts.upload
Class MultipartRequestWrapper

    java.lang.Object
      |
      +--org.apache.struts.upload.MultipartRequestWrapper

All Implemented Interfaces:
  javax.servlet.http.HttpServletRequest, javax.servlet.ServletRequest

public class MultipartRequestWrapper
extends java.lang.Object
implements javax.servlet.http.HttpServletRequest

This class functions as a wrapper around HttpServletRequest to provide working getParameter methods for multipart requests. Once Struts requires Servlet 2.3, this class will definately be changed to extend javax.servlet.http.HttpServletRequestWrapper instead of implementing HttpServletRequest. Servlet 2.3 methods are implemented to return `null` or do nothing if called on. Use `getRequest` to retrieve the underlying HttpServletRequest object and call on the 2.3 method there, the empty methods are here only so that this will compile with the Servlet 2.3 jar. This class exists temporarily in the process() method of ActionServlet, just before the ActionForward is processed and just after the Action is performed, the request is set back to the original HttpServletRequest object.

Field Summary
`protected java.util.Map` | `parameters` The parameters for this multipart request
`protected javax.servlet.http.HttpServletRequest` | `request` The underlying HttpServletRequest

Constructor Summary
`MultipartRequestWrapper(javax.servlet.http.HttpServletRequest request)`

Method Summary
`java.lang.Object` | `getAttribute(java.lang.String name)`
`java.util.Enumeration` | `getAttributeNames()`
`java.lang.String` | `getAuthType()`
`java.lang.String` | `getCharacterEncoding()`
`int` | `getContentLength()`
`java.lang.String` | `getContentType()`
`java.lang.String` | `getContextPath()`
`javax.servlet.http.Cookie[]` | `getCookies()`
`long` | `getDateHeader(java.lang.String name)`
`java.lang.String` | `getHeader(java.lang.String name)`
`java.util.Enumeration` | `getHeaderNames()`
`java.util.Enumeration` | `getHeaders(java.lang.String name)`
`javax.servlet.ServletInputStream` | `getInputStream()`
`int` | `getIntHeader(java.lang.String name)`
`java.util.Locale` | `getLocale()`
`java.util.Enumeration` | `getLocales()`
`java.lang.String` | `getMethod()`
`java.lang.String` | `getParameter(java.lang.String name)` Attempts to get a parameter for this request.
`java.util.Map` | `getParameterMap()` This method returns null.
`java.util.Enumeration` | `getParameterNames()` Returns the names of the parameters for this request.
`java.lang.String[]` | `getParameterValues(java.lang.String name)`
`java.lang.String` | `getPathInfo()`
`java.lang.String` | `getPathTranslated()`
`java.lang.String` | `getProtocol()`
`java.lang.String` | `getQueryString()`
`java.io.BufferedReader` | `getReader()`
`java.lang.String` | `getRealPath(java.lang.String path)`
`java.lang.String` | `getRemoteAddr()`
`java.lang.String` | `getRemoteHost()`
`java.lang.String` | `getRemoteUser()`
`javax.servlet.http.HttpServletRequest` | `getRequest()` Returns the underlying HttpServletRequest for this wrapper
`javax.servlet.RequestDispatcher` | `getRequestDispatcher(java.lang.String path)`
`java.lang.String` | `getRequestedSessionId()`
`java.lang.String` | `getRequestURI()`
`java.lang.StringBuffer` | `getRequestURL()` This method returns null.
`java.lang.String` | `getScheme()`
`java.lang.String` | `getServerName()`
`int` | `getServerPort()`
`java.lang.String` | `getServletPath()`
`javax.servlet.http.HttpSession` | `getSession()`
`javax.servlet.http.HttpSession` | `getSession(boolean create)`
`java.security.Principal` | `getUserPrincipal()`
`boolean` | `isRequestedSessionIdFromCookie()` This method returns false.
`boolean` | `isRequestedSessionIdFromUrl()`
`boolean` | `isRequestedSessionIdFromURL()`
`boolean` | `isRequestedSessionIdValid()`
`boolean` | `isSecure()`
`boolean` | `isUserInRole(java.lang.String user)`
`void` | `removeAttribute(java.lang.String name)`
`void` | `setAttribute(java.lang.String name, java.lang.Object o)`
`void` | `setCharacterEncoding(java.lang.String encoding)` This method does nothing.
`void` | `setParameter(java.lang.String name, java.lang.String value)` Sets a parameter for this request.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### parameters

    protected java.util.Map parameters

  The parameters for this multipart request

### request

    protected javax.servlet.http.HttpServletRequest request

  The underlying HttpServletRequest

Constructor Detail

### MultipartRequestWrapper

    public MultipartRequestWrapper(javax.servlet.http.HttpServletRequest request)

Method Detail

### setParameter

    public void setParameter(java.lang.String name,
                             java.lang.String value)

  Sets a parameter for this request. The parameter is actually separate from the request parameters, but calling on the getParameter() methods of this class will work as if they weren't.

### getParameter

    public java.lang.String getParameter(java.lang.String name)

  Attempts to get a parameter for this request. It first looks in the underlying HttpServletRequest object for the parameter, and if that doesn't exist it looks for the parameters retrieved from the multipart request

  Specified by:
    `getParameter` in interface `javax.servlet.ServletRequest`

### getParameterNames

    public java.util.Enumeration getParameterNames()

  Returns the names of the parameters for this request. The enumeration consists of the normal request parameter names plus the parameters read from the multipart request

  Specified by:
    `getParameterNames` in interface `javax.servlet.ServletRequest`

### getParameterValues

    public java.lang.String[] getParameterValues(java.lang.String name)

  Specified by:
    `getParameterValues` in interface `javax.servlet.ServletRequest`

### getRequest

    public javax.servlet.http.HttpServletRequest getRequest()

  Returns the underlying HttpServletRequest for this wrapper

### getAttribute

    public java.lang.Object getAttribute(java.lang.String name)

  Specified by:
    `getAttribute` in interface `javax.servlet.ServletRequest`

### getAttributeNames

    public java.util.Enumeration getAttributeNames()

  Specified by:
    `getAttributeNames` in interface `javax.servlet.ServletRequest`

### getCharacterEncoding

    public java.lang.String getCharacterEncoding()

  Specified by:
    `getCharacterEncoding` in interface `javax.servlet.ServletRequest`

### getContentLength

    public int getContentLength()

  Specified by:
    `getContentLength` in interface `javax.servlet.ServletRequest`

### getContentType

    public java.lang.String getContentType()

  Specified by:
    `getContentType` in interface `javax.servlet.ServletRequest`

### getInputStream

    public javax.servlet.ServletInputStream getInputStream()
                                                    throws java.io.IOException

  Specified by:
    `getInputStream` in interface `javax.servlet.ServletRequest`
    `java.io.IOException`

### getProtocol

    public java.lang.String getProtocol()

  Specified by:
    `getProtocol` in interface `javax.servlet.ServletRequest`

### getScheme

    public java.lang.String getScheme()

  Specified by:
    `getScheme` in interface `javax.servlet.ServletRequest`

### getServerName

    public java.lang.String getServerName()

  Specified by:
    `getServerName` in interface `javax.servlet.ServletRequest`

### getServerPort

    public int getServerPort()

  Specified by:
    `getServerPort` in interface `javax.servlet.ServletRequest`

### getReader

    public java.io.BufferedReader getReader()
                                     throws java.io.IOException

  Specified by:
    `getReader` in interface `javax.servlet.ServletRequest`
    `java.io.IOException`

### getRemoteAddr

    public java.lang.String getRemoteAddr()

  Specified by:
    `getRemoteAddr` in interface `javax.servlet.ServletRequest`

### getRemoteHost

    public java.lang.String getRemoteHost()

  Specified by:
    `getRemoteHost` in interface `javax.servlet.ServletRequest`

### setAttribute

    public void setAttribute(java.lang.String name,
                             java.lang.Object o)

  Specified by:
    `setAttribute` in interface `javax.servlet.ServletRequest`

### removeAttribute

    public void removeAttribute(java.lang.String name)

  Specified by:
    `removeAttribute` in interface `javax.servlet.ServletRequest`

### getLocale

    public java.util.Locale getLocale()

  Specified by:
    `getLocale` in interface `javax.servlet.ServletRequest`

### getLocales

    public java.util.Enumeration getLocales()

  Specified by:
    `getLocales` in interface `javax.servlet.ServletRequest`

### isSecure

    public boolean isSecure()

  Specified by:
    `isSecure` in interface `javax.servlet.ServletRequest`

### getRequestDispatcher

    public javax.servlet.RequestDispatcher getRequestDispatcher(java.lang.String path)

  Specified by:
    `getRequestDispatcher` in interface `javax.servlet.ServletRequest`

### getRealPath

    public java.lang.String getRealPath(java.lang.String path)

  Specified by:
    `getRealPath` in interface `javax.servlet.ServletRequest`

### getAuthType

    public java.lang.String getAuthType()

  Specified by:
    `getAuthType` in interface `javax.servlet.http.HttpServletRequest`

### getCookies

    public javax.servlet.http.Cookie[] getCookies()

  Specified by:
    `getCookies` in interface `javax.servlet.http.HttpServletRequest`

### getDateHeader

    public long getDateHeader(java.lang.String name)

  Specified by:
    `getDateHeader` in interface `javax.servlet.http.HttpServletRequest`

### getHeader

    public java.lang.String getHeader(java.lang.String name)

  Specified by:
    `getHeader` in interface `javax.servlet.http.HttpServletRequest`

### getHeaders

    public java.util.Enumeration getHeaders(java.lang.String name)

  Specified by:
    `getHeaders` in interface `javax.servlet.http.HttpServletRequest`

### getHeaderNames

    public java.util.Enumeration getHeaderNames()

  Specified by:
    `getHeaderNames` in interface `javax.servlet.http.HttpServletRequest`

### getIntHeader

    public int getIntHeader(java.lang.String name)

  Specified by:
    `getIntHeader` in interface `javax.servlet.http.HttpServletRequest`

### getMethod

    public java.lang.String getMethod()

  Specified by:
    `getMethod` in interface `javax.servlet.http.HttpServletRequest`

### getPathInfo

    public java.lang.String getPathInfo()

  Specified by:
    `getPathInfo` in interface `javax.servlet.http.HttpServletRequest`

### getPathTranslated

    public java.lang.String getPathTranslated()

  Specified by:
    `getPathTranslated` in interface `javax.servlet.http.HttpServletRequest`

### getContextPath

    public java.lang.String getContextPath()

  Specified by:
    `getContextPath` in interface `javax.servlet.http.HttpServletRequest`

### getQueryString

    public java.lang.String getQueryString()

  Specified by:
    `getQueryString` in interface `javax.servlet.http.HttpServletRequest`

### getRemoteUser

    public java.lang.String getRemoteUser()

  Specified by:
    `getRemoteUser` in interface `javax.servlet.http.HttpServletRequest`

### isUserInRole

    public boolean isUserInRole(java.lang.String user)

  Specified by:
    `isUserInRole` in interface `javax.servlet.http.HttpServletRequest`

### getUserPrincipal

    public java.security.Principal getUserPrincipal()

  Specified by:
    `getUserPrincipal` in interface `javax.servlet.http.HttpServletRequest`

### getRequestedSessionId

    public java.lang.String getRequestedSessionId()

  Specified by:
    `getRequestedSessionId` in interface `javax.servlet.http.HttpServletRequest`

### getRequestURI

    public java.lang.String getRequestURI()

  Specified by:
    `getRequestURI` in interface `javax.servlet.http.HttpServletRequest`

### getServletPath

    public java.lang.String getServletPath()

  Specified by:
    `getServletPath` in interface `javax.servlet.http.HttpServletRequest`

### getSession

    public javax.servlet.http.HttpSession getSession(boolean create)

  Specified by:
    `getSession` in interface `javax.servlet.http.HttpServletRequest`

### getSession

    public javax.servlet.http.HttpSession getSession()

  Specified by:
    `getSession` in interface `javax.servlet.http.HttpServletRequest`

### isRequestedSessionIdValid

    public boolean isRequestedSessionIdValid()

  Specified by:
    `isRequestedSessionIdValid` in interface `javax.servlet.http.HttpServletRequest`

### isRequestedSessionIdFromURL

    public boolean isRequestedSessionIdFromURL()

  Specified by:
    `isRequestedSessionIdFromURL` in interface `javax.servlet.http.HttpServletRequest`

### isRequestedSessionIdFromUrl

    public boolean isRequestedSessionIdFromUrl()

  Specified by:
    `isRequestedSessionIdFromUrl` in interface `javax.servlet.http.HttpServletRequest`

### getParameterMap

    public java.util.Map getParameterMap()

  This method returns null. To use any Servlet 2.3 methods, call on getRequest() and use that request object. Once Servlet 2.3 is required to build Struts, this will no longer be an issue.

### setCharacterEncoding

    public void setCharacterEncoding(java.lang.String encoding)

  This method does nothing. To use any Servlet 2.3 methods, call on getRequest() and use that request object. Once Servlet 2.3 is required to build Struts, this will no longer be an issue.

### getRequestURL

    public java.lang.StringBuffer getRequestURL()

  This method returns null. To use any Servlet 2.3 methods, call on getRequest() and use that request object. Once Servlet 2.3 is required to build Struts, this will no longer be an issue.

### isRequestedSessionIdFromCookie

    public boolean isRequestedSessionIdFromCookie()

  This method returns false. To use any Servlet 2.3 methods, call on getRequest() and use that request object. Once Servlet 2.3 is required to build Struts, this will no longer be an issue.

  Specified by:
    `isRequestedSessionIdFromCookie` in interface `javax.servlet.http.HttpServletRequest`

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