Interface FileItemStream
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- All Superinterfaces:
FileItemHeadersSupport
- All Known Implementing Classes:
FileItemStreamImpl
public interface FileItemStream extends FileItemHeadersSupport
This interface provides access to a file or form item that was received within a
multipart/form-data
POST request. The items contents are retrieved by callingopenStream()
.Instances of this class are created by accessing the iterator, returned by
FileUploadBase.getItemIterator(RequestContext)
.Note: There is an interaction between the iterator and its associated instances of
FileItemStream
: By invokingIterator.hasNext()
on the iterator, you discard all data, which hasn't been read so far from the previous data.
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Nested Class Summary
Nested Classes Modifier and Type Interface Description static class
FileItemStream.ItemSkippedException
This exception is thrown, if an attempt is made to read data from theInputStream
, which has been returned byopenStream()
, afterIterator.hasNext()
has been invoked on the iterator, which created theFileItemStream
.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description java.lang.String
getContentType()
Returns the content type passed by the browser ornull
if not defined.java.lang.String
getFieldName()
Returns the name of the field in the multipart form corresponding to this file item.java.lang.String
getName()
Returns the original file name in the client's file system, as provided by the browser (or other client software).boolean
isFormField()
Determines whether or not aFileItem
instance represents a simple form field.java.io.InputStream
openStream()
Creates anInputStream
, which allows to read the items contents.-
Methods inherited from interface org.apache.tomcat.util.http.fileupload.FileItemHeadersSupport
getHeaders, setHeaders
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Method Detail
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openStream
java.io.InputStream openStream() throws java.io.IOException
Creates anInputStream
, which allows to read the items contents.- Returns:
- The input stream, from which the items data may be read.
- Throws:
java.lang.IllegalStateException
- The method was already invoked on this item. It is not possible to recreate the data stream.java.io.IOException
- An I/O error occurred.- See Also:
FileItemStream.ItemSkippedException
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getContentType
java.lang.String getContentType()
Returns the content type passed by the browser ornull
if not defined.- Returns:
- The content type passed by the browser or
null
if not defined.
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getName
java.lang.String getName()
Returns the original file name in the client's file system, as provided by the browser (or other client software). In most cases, this will be the base file name, without path information. However, some clients, such as the Opera browser, do include path information.- Returns:
- The original file name in the client's file system.
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getFieldName
java.lang.String getFieldName()
Returns the name of the field in the multipart form corresponding to this file item.- Returns:
- The name of the form field.
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isFormField
boolean isFormField()
Determines whether or not aFileItem
instance represents a simple form field.- Returns:
true
if the instance represents a simple form field;false
if it represents an uploaded file.
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