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Java Source Code / Java Documentation » J2EE » Expresso » com.jcorporate.expresso.core.misc.upload 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   com.jcorporate.expresso.core.misc.upload.Uploader

Uploader
public class Uploader implements MultipartRequestHandler(Code)

Files will be stored in temporary disk storage

This implementation of Uploader handles multiple files per single html widget, sent using multipar/mixed encoding type, as specified by RFC 1867. Use org.apache.turbine.util.ParameterParser.getFileItems(String) to acquire an array of org.apache.turbine.util.upload.FileItem s associated with given html widget.
author:
   Rafal Krzewski



Field Summary
final public static  intMAX_HEADER_SIZE
     A maximum lenght of a single header line that will be parsed.

Constructor Summary
public  Uploader()
    

Method Summary
protected  FileItemcreateItem(String path, int requestSize, boolean storeAsFile)
    

Creates a new instance of a FileItem.
Parameters:
  path - The path for the FileItem.
Parameters:
  requestSize - The size of the request.

public  voidfinish()
     This method is called on when a successful form post has been made.
public  HashtablegetAllElements()
     This method returns all elements of a multipart request.
protected  StringgetFieldName()
    

Retrieves field name from 'Content-disposition' header.

public  HashtablegetFileElements()
     This method is called on to retrieve all the FormFile input elements of the request.
protected  StringgetFileName()
    

Retrieves file name from 'Content-disposition' header.

protected  StringgetHeader(String name)
    

Returns a header with specified name.
Parameters:
  name - The name of the header to fetch.

public  ActionMappinggetMapping()
    
public  ActionServletgetServlet()
    
public  HashtablegetTextElements()
     This method is called on to retrieve all the text input elements of the request.
public  voidhandleRequest(HttpServletRequest request)
     After constructed, this is the first method called on by ActionServlet.
protected  voidparseHeaders(String headerPart)
    

Parses the header-part and stores as key - value pairs.

public  voidparseRequest(HttpServletRequest req, ParameterParser params, String path)
     Processes an RFC 1867 compliant multipart/form-data stream.
public  voidrollback()
     This method is called on when there's some sort of problem and the form post needs to be rolled back.
public  voidsetMapping(ActionMapping mapping)
     Convienience method to set a reference to a working ActionMapping instance.
public  voidsetServlet(ActionServlet servlet)
     Convienience method to set a reference to a working ActionServlet instance.

Field Detail
MAX_HEADER_SIZE
final public static int MAX_HEADER_SIZE(Code)
A maximum lenght of a single header line that will be parsed. (1024 bytes).




Constructor Detail
Uploader
public Uploader()(Code)




Method Detail
createItem
protected FileItem createItem(String path, int requestSize, boolean storeAsFile)(Code)

Creates a new instance of a FileItem.
Parameters:
  path - The path for the FileItem.
Parameters:
  requestSize - The size of the request. A newly created FileItem.




finish
public void finish()(Code)
This method is called on when a successful form post has been made. Some implementations will use this to destroy temporary files or write to a database or something of that nature



getAllElements
public Hashtable getAllElements()(Code)
This method returns all elements of a multipart request. A Hashtable where the keys are input names and values are either Strings or FormFiles



getFieldName
protected String getFieldName()(Code)

Retrieves field name from 'Content-disposition' header. A String with the field name for the currentencapsulation.




getFileElements
public Hashtable getFileElements()(Code)
This method is called on to retrieve all the FormFile input elements of the request. A Hashtable where the keys are the input names of the files and the values are FormFile objects
See Also:   org.apache.struts.upload.FormFile



getFileName
protected String getFileName()(Code)

Retrieves file name from 'Content-disposition' header. A String with the file name for the currentencapsulation.




getHeader
protected String getHeader(String name)(Code)

Returns a header with specified name.
Parameters:
  name - The name of the header to fetch. The value of specified header, or a comma-separatedlist if there were multiple headers of that name.




getMapping
public ActionMapping getMapping()(Code)
Get the ActionMapping instance for this request



getServlet
public ActionServlet getServlet()(Code)
Get the ActionServlet instance



getTextElements
public Hashtable getTextElements()(Code)
This method is called on to retrieve all the text input elements of the request. A Hashtable where the keys and values are the names and values of the request input parameters



handleRequest
public void handleRequest(HttpServletRequest request) throws ServletException(Code)
After constructed, this is the first method called on by ActionServlet. Use this method for all your data-parsing of the ServletInputStream in the request
throws:
  ServletException - thrown if something goes wrong



parseHeaders
protected void parseHeaders(String headerPart)(Code)

Parses the header-part and stores as key - value pairs.

If there are multiple headers of the same names, the name will map to a comma-separated list containing the values.
Parameters:
  headerPart - The header-part of the currentencapsulation.




parseRequest
public void parseRequest(HttpServletRequest req, ParameterParser params, String path) throws ControllerException(Code)
Processes an RFC 1867 compliant multipart/form-data stream.
Parameters:
  req - The servlet request to be parsed.
Parameters:
  params - The ParameterParser instance to insert formfields into.
Parameters:
  path - The location where the files should be stored.
throws:
  ControllerException - If there are problems reading/parsingthe request or storing files.



rollback
public void rollback()(Code)
This method is called on when there's some sort of problem and the form post needs to be rolled back. Providers should remove any FormFiles used to hold information by setting them to null and also physically delete them if the implementation calls for writing directly to disk. NOTE: Currently implemented but not automatically supported, ActionForm implementors must call rollback() manually for rolling back file uploads.



setMapping
public void setMapping(ActionMapping mapping)(Code)
Convienience method to set a reference to a working ActionMapping instance.



setServlet
public void setServlet(ActionServlet servlet)(Code)
Convienience method to set a reference to a working ActionServlet instance.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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