Package org.springframework.integration.file.filters

Class FileSystemPersistentAcceptOnceFileListFilter

java.lang.Object

org.springframework.integration.file.filters.AbstractFileListFilter<F>

org.springframework.integration.file.filters.AbstractDirectoryAwareFileListFilter<F>

org.springframework.integration.file.filters.AbstractPersistentAcceptOnceFileListFilter<File>

org.springframework.integration.file.filters.FileSystemPersistentAcceptOnceFileListFilter

All Implemented Interfaces:

Closeable, AutoCloseable, FileListFilter<File>, ResettableFileListFilter<File>, ReversibleFileListFilter<File>

public class FileSystemPersistentAcceptOnceFileListFilter
extends AbstractPersistentAcceptOnceFileListFilter<File>

Since:

3.0

Author:

Gary Russell

Field Summary

Fields inherited from class org.springframework.integration.file.filters.AbstractPersistentAcceptOnceFileListFilter

flushableStore, flushOnUpdate, prefix, store

Constructor Summary

Constructors

Constructor	Description
FileSystemPersistentAcceptOnceFileListFilter(ConcurrentMetadataStore store, String prefix)

Method Summary

Modifier and Type	Method	Description
protected String	fileName(File file)
protected boolean	fileStillExists(File file)	Check that the file still exists, to avoid a race condition when multi-threaded and another thread removed the file while we were waiting for the lock.
protected boolean	isDirectory(File file)	Subclasses must implement this method to indicate whether the file is a directory or not.
protected long	modified(File file)

Methods inherited from class org.springframework.integration.file.filters.AbstractPersistentAcceptOnceFileListFilter

accept, buildKey, close, flushIfNeeded, isEqual, remove, rollback, setFlushOnUpdate

Methods inherited from class org.springframework.integration.file.filters.AbstractDirectoryAwareFileListFilter

alwaysAccept, isForRecursion, setAlwaysAcceptDirectories, setForRecursion

Methods inherited from class org.springframework.integration.file.filters.AbstractFileListFilter

filterFiles, supportsSingleFileFiltering

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.integration.file.filters.FileListFilter

filterFiles, isForRecursion, supportsSingleFileFiltering

Constructor Details

FileSystemPersistentAcceptOnceFileListFilter

public FileSystemPersistentAcceptOnceFileListFilter(ConcurrentMetadataStore store,
 String prefix)

Method Details

modified

protected long modified(File file)

Specified by:

modified in class AbstractPersistentAcceptOnceFileListFilter<File>

fileName

protected String fileName(File file)

Specified by:

fileName in class AbstractPersistentAcceptOnceFileListFilter<File>

fileStillExists

protected boolean fileStillExists(File file)

Check that the file still exists, to avoid a race condition when multi-threaded and another thread removed the file while we were waiting for the lock.

Overrides:

fileStillExists in class AbstractPersistentAcceptOnceFileListFilter<File>

Parameters:

file - the file.

Returns:

true if the filter should return true.

Since:

4.3.19

isDirectory

protected boolean isDirectory(File file)

Description copied from class: AbstractDirectoryAwareFileListFilter

Subclasses must implement this method to indicate whether the file is a directory or not.

Overrides:

isDirectory in class AbstractPersistentAcceptOnceFileListFilter<File>

Parameters:

file - the file.

Returns:

true if it's a directory.