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com.vaadin.flow.component.upload.receivers.
Class FileBuffer
- java.lang.Object
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- com.vaadin.flow.component.upload.receivers.AbstractFileBuffer
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- com.vaadin.flow.component.upload.receivers.FileBuffer
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All Implemented Interfaces:
public class FileBuffer extends AbstractFileBuffer implements ReceiverBasic in file receiver implementation. File is stored by default to File created using
File.createTempFile(String, String)with a null suffix.For a custom file the constructor
AbstractFileBuffer(FileFactory)should be used.See Also:
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Constructor Summary
Constructors Constructor Description FileBuffer()Creates a file buffer with a default file factory.
FileBuffer(FileFactory factory)Creates a file buffer that uses a file factory to create a custom upload
File.
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Method Summary
All Methods Modifier and Type Method Description FileDatagetFileData()Get the file data object.
FileDescriptorgetFileDescriptor()Get the output stream for file.
StringgetFileName()Get the file name for this buffer.
InputStreamgetInputStream()Get the input stream for file.
OutputStreamreceiveUpload(String fileName, String mimeType)Invoked when a new upload arrives.
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Methods inherited from class com.vaadin.flow.component.upload.receivers.AbstractFileBuffer
createFileOutputStream, getLogger
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Constructor Detail
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FileBuffer
public FileBuffer()Creates a file buffer with a default file factory.
Files will be created using
File.createTempFile(String, String)and have that build 'upload_tmpfile_{FILENAME}_{currentTimeMillis}'
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FileBuffer
public FileBuffer(FileFactory factory)Creates a file buffer that uses a file factory to create a custom upload
File.Parameters:
factory- file factory for file buffer
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Method Detail
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receiveUpload
public OutputStream receiveUpload(String fileName, String mimeType)Description copied from interface:
ReceiverInvoked when a new upload arrives.
Specified by:
receiveUploadin interfaceReceiverParameters:
fileName- the desired filename of the upload, usually as specified by the clientmimeType- the MIME type of the uploaded fileReturns:
stream to which the uploaded file should be written
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getFileData
public FileData getFileData()Get the file data object.
Returns:
file data for the latest upload or null
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getFileName
public String getFileName()Get the file name for this buffer.
Returns:
file name or empty if no file
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getFileDescriptor
public FileDescriptor getFileDescriptor()Get the output stream for file.
Returns:
file output stream or null if not available
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getInputStream
public InputStream getInputStream()Get the input stream for file.
Returns:
input stream for file or empty stream if file not found
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