org.apache.commons.fileupload
Class FileUploadBase.FileItemIteratorImpl

java.lang.Object
  org.apache.commons.fileupload.FileUploadBase.FileItemIteratorImpl

All Implemented Interfaces:

FileItemIterator

Enclosing class:

FileUploadBase

private class FileUploadBase.FileItemIteratorImpl
extends java.lang.Object
implements FileItemIterator

The iterator, which is returned by FileUploadBase.getItemIterator(RequestContext).

Nested Class Summary

private class

FileUploadBase.FileItemIteratorImpl.FileItemStreamImpl Default implementation of FileItemStream.

Field Summary

private byte[]	boundary The boundary, which separates the various parts.
private java.lang.String	currentFieldName The current items field name.
private FileUploadBase.FileItemIteratorImpl.FileItemStreamImpl	currentItem The item, which we currently process.
private boolean	eof Whether we have seen the end of the file.
private boolean	itemValid Whether the current item may still be read.
private MultipartStream	multi The multi part stream to process.
private MultipartStream.ProgressNotifier	notifier The notifier, which used for triggering the ProgressListener.
private boolean	skipPreamble Whether we are currently skipping the preamble.

Constructor Summary

FileUploadBase.FileItemIteratorImpl(RequestContext ctx)
Creates a new instance.

Method Summary

private boolean	findNextItem() Called for finding the nex item, if any.
private long	getContentLength(FileItemHeaders pHeaders)
boolean	hasNext() Returns, whether another instance of FileItemStream is available.
FileItemStream	next() Returns the next available FileItemStream.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

multi

private final MultipartStream multi

The multi part stream to process.

notifier

private final MultipartStream.ProgressNotifier notifier

The notifier, which used for triggering the ProgressListener.

boundary

private final byte[] boundary

The boundary, which separates the various parts.

currentItem

private FileUploadBase.FileItemIteratorImpl.FileItemStreamImpl currentItem

The item, which we currently process.

currentFieldName

private java.lang.String currentFieldName

The current items field name.

skipPreamble

private boolean skipPreamble

Whether we are currently skipping the preamble.

itemValid

private boolean itemValid

Whether the current item may still be read.

eof

private boolean eof

Whether we have seen the end of the file.

Constructor Detail

FileUploadBase.FileItemIteratorImpl

FileUploadBase.FileItemIteratorImpl(RequestContext ctx)
                              throws FileUploadException,
                                     java.io.IOException

Creates a new instance.

Parameters:

ctx - The request context.

Throws:

FileUploadException - An error occurred while parsing the request.

java.io.IOException - An I/O error occurred.

Method Detail

findNextItem

private boolean findNextItem()
                      throws java.io.IOException

Called for finding the nex item, if any.

Returns:

True, if an next item was found, otherwise false.

Throws:

java.io.IOException - An I/O error occurred.

getContentLength

private long getContentLength(FileItemHeaders pHeaders)

hasNext

public boolean hasNext()
                throws FileUploadException,
                       java.io.IOException

Returns, whether another instance of FileItemStream is available.

Specified by:

hasNext in interface FileItemIterator

Returns:

True, if one or more additional file items are available, otherwise false.

Throws:

FileUploadException - Parsing or processing the file item failed.

java.io.IOException - Reading the file item failed.

next

public FileItemStream next()
                    throws FileUploadException,
                           java.io.IOException

Returns the next available FileItemStream.

Specified by:

next in interface FileItemIterator

Returns:

FileItemStream instance, which provides access to the next file item.

Throws:

java.util.NoSuchElementException - No more items are available. Use hasNext() to prevent this exception.

FileUploadException - Parsing or processing the file item failed.

java.io.IOException - Reading the file item failed.