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## org.apache.tomcat.util.http.fileupload
Class DiskFileUpload

    java.lang.Object
      org.apache.tomcat.util.http.fileupload.FileUploadBase
          org.apache.tomcat.util.http.fileupload.DiskFileUpload

    public class DiskFileUpload

extends FileUploadBase

High level API for processing file uploads.

This class handles multiple files per single HTML widget, sent using `multipart/mixed` encoding type, as specified by RFC 1867. Use `FileUploadBase.parseRequest(HttpServletRequest)` to acquire a list of `FileItem`s associated with a given HTML widget.

Individual parts will be stored in temporary disk storage or in memory, depending on their size, and will be available as `FileItem`s.

Author:
  Rafal Krzewski, Daniel Rall, Jason van Zyl, John McNally, Martin Cooper, Sean C. Sullivan

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.tomcat.util.http.fileupload.FileUploadBase
`FileUploadBase.InvalidContentTypeException, FileUploadBase.SizeLimitExceededException, FileUploadBase.UnknownSizeException`

Field Summary

Fields inherited from class org.apache.tomcat.util.http.fileupload.FileUploadBase
`ATTACHMENT, CONTENT_DISPOSITION, CONTENT_TYPE, FORM_DATA, MAX_HEADER_SIZE, MULTIPART, MULTIPART_FORM_DATA, MULTIPART_MIXED`

Constructor Summary
`DiskFileUpload()` Constructs an instance of this class which uses the default factory to create `FileItem` instances.
`DiskFileUpload(DefaultFileItemFactory fileItemFactory)` Constructs an instance of this class which uses the supplied factory to create `FileItem` instances.

Method Summary
`FileItemFactory` | `getFileItemFactory()` Returns the factory class used when creating file items.
`java.lang.String` | `getRepositoryPath()` Returns the location used to temporarily store files that are larger than the configured size threshold.
`int` | `getSizeThreshold()` Returns the size threshold beyond which files are written directly to disk.
`java.util.List` | `parseRequest(javax.servlet.http.HttpServletRequest req, int sizeThreshold, long sizeMax, java.lang.String path)` Processes an RFC 1867 compliant `multipart/form-data` stream.
`void` | `setFileItemFactory(FileItemFactory factory)` Sets the factory class to use when creating file items.
`void` | `setRepositoryPath(java.lang.String repositoryPath)` Sets the location used to temporarily store files that are larger than the configured size threshold.
`void` | `setSizeThreshold(int sizeThreshold)` Sets the size threshold beyond which files are written directly to disk.

Methods inherited from class org.apache.tomcat.util.http.fileupload.FileUploadBase
`createItem, getFieldName, getFileName, getHeader, getHeaderEncoding, getSizeMax, isMultipartContent, parseHeaders, parseRequest, setHeaderEncoding, setSizeMax`

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

Constructor Detail

### DiskFileUpload

    public DiskFileUpload()

  Constructs an instance of this class which uses the default factory to create `FileItem` instances.

  See Also:
    `DiskFileUpload(DefaultFileItemFactory fileItemFactory)`

### DiskFileUpload

    public DiskFileUpload(DefaultFileItemFactory fileItemFactory)

  Constructs an instance of this class which uses the supplied factory to create `FileItem` instances.

  See Also:
    `DiskFileUpload()`

Method Detail

### getFileItemFactory

    public FileItemFactory getFileItemFactory()

  Returns the factory class used when creating file items.

  Specified by:
    `getFileItemFactory` in class `FileUploadBase`
  Returns:
    The factory class for new file items.

### setFileItemFactory

    public void setFileItemFactory(FileItemFactory factory)

  Sets the factory class to use when creating file items. The factory must be an instance of `DefaultFileItemFactory` or a subclass thereof, or else a `ClassCastException` will be thrown.

  Specified by:
    `setFileItemFactory` in class `FileUploadBase`
  Parameters:
    `factory` - The factory class for new file items.

### getSizeThreshold

    public int getSizeThreshold()

  Returns the size threshold beyond which files are written directly to disk.

  Returns:
    The size threshold, in bytes.
  See Also:
    `setSizeThreshold(int)`

### setSizeThreshold

    public void setSizeThreshold(int sizeThreshold)

  Sets the size threshold beyond which files are written directly to disk.

  Parameters:
    `sizeThreshold` - The size threshold, in bytes.
  See Also:
    `getSizeThreshold()`

### getRepositoryPath

    public java.lang.String getRepositoryPath()

  Returns the location used to temporarily store files that are larger than the configured size threshold.

  Returns:
    The path to the temporary file location.
  See Also:
    `setRepositoryPath(String)`

### setRepositoryPath

    public void setRepositoryPath(java.lang.String repositoryPath)

  Sets the location used to temporarily store files that are larger than the configured size threshold.

  Parameters:
    `repositoryPath` - The path to the temporary file location.
  See Also:
    `getRepositoryPath()`

### parseRequest

    public java.util.List parseRequest(javax.servlet.http.HttpServletRequest req,
                                       int sizeThreshold,
                                       long sizeMax,
                                       java.lang.String path)
                                throws FileUploadException

  Processes an RFC 1867 compliant `multipart/form-data` stream. If files are stored on disk, the path is given by `getRepository()`.

  Parameters:
    `req` - The servlet request to be parsed. Must be non-null.
    `sizeThreshold` - The max size in bytes to be stored in memory.
    `sizeMax` - The maximum allowed upload size, in bytes.
    `path` - The location where the files should be stored.
  Returns:
    A list of `FileItem` instances parsed from the request, in the order that they were transmitted.
  Throws:
    `FileUploadException` - if there are problems reading/parsing the request or storing files.

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