Package org.springframework.integration.file.filters

Class AbstractRecentFileListFilter<F>

java.lang.Object

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

Type Parameters:

F - The type that will be filtered.

All Implemented Interfaces:

FileListFilter<F>

Direct Known Subclasses:

FtpRecentFileListFilter, RecentFileListFilter, SftpRecentFileListFilter, SmbRecentFileListFilter

public abstract class AbstractRecentFileListFilter<F>
extends Object
implements FileListFilter<F>

The FileListFilter to accept only files which are recent according to provided age: the lastModified of the file is more than the age in comparison with the current time. In other words, accept those files which are not old enough yet.

Since:

6.5

Author:

Artem Bilan

Field Summary

Fields

Modifier and Type	Field	Description
protected static final long	ONE_SECOND

Constructor Summary

Constructors

Constructor	Description
AbstractRecentFileListFilter()	Construct an instance with default age as 1 day.
AbstractRecentFileListFilter(Duration age)

Method Summary

Modifier and Type	Method	Description
boolean	accept(F file)	Filter a single file; only called externally if FileListFilter.supportsSingleFileFiltering() returns true.
protected boolean	fileIsAged(F file, Instant now)
List<F>	filterFiles(F[] files)	Filters out files and returns the files that are left in a list, or an empty list when a null is passed in.
protected abstract Instant	getLastModified(F remoteFile)
boolean	supportsSingleFileFiltering()	Indicates that this filter supports filtering a single file.

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

isForRecursion

Field Details

ONE_SECOND

protected static final long ONE_SECOND

See Also:

• Constant Field Values

Constructor Details

AbstractRecentFileListFilter

public AbstractRecentFileListFilter()

Construct an instance with default age as 1 day.

AbstractRecentFileListFilter

public AbstractRecentFileListFilter(Duration age)

Method Details

supportsSingleFileFiltering

public boolean supportsSingleFileFiltering()

Description copied from interface: FileListFilter

Indicates that this filter supports filtering a single file. Filters that return true must override FileListFilter.accept(Object). Default false.

Specified by:

supportsSingleFileFiltering in interface FileListFilter<F>

Returns:

true to allow external calls to FileListFilter.accept(Object).

See Also:

• FileListFilter.accept(Object)

filterFiles

public List<F> filterFiles(F[] files)

Description copied from interface: FileListFilter

Filters out files and returns the files that are left in a list, or an empty list when a null is passed in.

Specified by:

filterFiles in interface FileListFilter<F>

Parameters:

files - The files.

Returns:

The filtered files.

accept

public boolean accept(F file)

Description copied from interface: FileListFilter

Filter a single file; only called externally if FileListFilter.supportsSingleFileFiltering() returns true.

Specified by:

accept in interface FileListFilter<F>

Parameters:

file - the file.

Returns:

true if the file passes the filter, false to filter.

See Also:

• FileListFilter.supportsSingleFileFiltering()

fileIsAged

protected boolean fileIsAged(F file,
 Instant now)

getLastModified

protected abstract Instant getLastModified(F remoteFile)