com.vaadin.flow.component.upload.receivers

Class MultiFileMemoryBuffer

java.lang.Object

com.vaadin.flow.component.upload.receivers.MultiFileMemoryBuffer

All Implemented Interfaces:

MultiFileReceiver, Receiver, Serializable

public class MultiFileMemoryBuffer
extends Object
implements MultiFileReceiver

Basic multi file in memory file receiver implementation.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MultiFileMemoryBuffer()

Method Summary

Modifier and Type	Method and Description
FileData	getFileData(String fileName) Get file data for upload with file name.
Set<String>	getFiles() Get the files in memory for this buffer.
InputStream	getInputStream(String filename) Get the input stream for file with filename.
ByteArrayOutputStream	getOutputBuffer(String fileName) Get the output stream for file.
OutputStream	receiveUpload(String fileName, String MIMEType) Invoked when a new upload arrives.

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiFileMemoryBuffer

public MultiFileMemoryBuffer()

Method Detail

receiveUpload

public OutputStream receiveUpload(String fileName,
                                  String MIMEType)

Description copied from interface: Receiver

Invoked when a new upload arrives.

Specified by:

receiveUpload in interface Receiver

Parameters:

fileName - the desired filename of the upload, usually as specified by the client

MIMEType - the MIME type of the uploaded file

Returns:

stream to which the uploaded file should be written

getFiles

public Set<String> getFiles()

Get the files in memory for this buffer.

Returns:

files in memory

getFileData

public FileData getFileData(String fileName)

Get file data for upload with file name.

Parameters:

fileName - file name to get upload data for

Returns:

file data for filename or null if not found

getOutputBuffer

public ByteArrayOutputStream getOutputBuffer(String fileName)

Get the output stream for file.

Parameters:

fileName - name of file to get stream for

Returns:

file output stream or empty stream if no file found

getInputStream

public InputStream getInputStream(String filename)

Get the input stream for file with filename.

Parameters:

filename - name of file to get input stream for

Returns:

input stream for file or empty stream if file not found