Package org.apache.druid.segment.loading

Class LocalFileTimestampVersionFinder

java.lang.Object

org.apache.druid.segment.loading.LocalDataSegmentPuller

org.apache.druid.segment.loading.LocalFileTimestampVersionFinder

All Implemented Interfaces:

SearchableVersionedDataFinder<URI>, URIDataPuller

public class LocalFileTimestampVersionFinder
extends LocalDataSegmentPuller
implements SearchableVersionedDataFinder<URI>

Field Summary

Fields

Modifier and Type	Field	Description
static final String	URI_SCHEME

Fields inherited from class org.apache.druid.segment.loading.LocalDataSegmentPuller

DEFAULT_RETRY_COUNT

Constructor Summary

Constructors

Constructor	Description
LocalFileTimestampVersionFinder()

Method Summary

Modifier and Type	Method	Description
URI	getLatestVersion(URI uri, Pattern pattern)	Matches based on a pattern in the file name.

Methods inherited from class org.apache.druid.segment.loading.LocalDataSegmentPuller

buildFileObject, getInputStream, getSegmentFiles, getVersion, shouldRetryPredicate

Methods inherited from class java.lang.Object

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

Field Details

URI_SCHEME

public static final String URI_SCHEME

See Also:

• Constant Field Values

Constructor Details

LocalFileTimestampVersionFinder

public LocalFileTimestampVersionFinder()

Method Details

getLatestVersion

public URI getLatestVersion(URI uri,
 @Nullable
 Pattern pattern)

Matches based on a pattern in the file name. Returns the file with the latest timestamp.

Specified by:

getLatestVersion in interface SearchableVersionedDataFinder<URI>

Parameters:

uri - If it is a file, then the parent is searched. If it is a directory, then the directory is searched.

pattern - The matching filter to down-select the file names in the directory of interest. Passing `null` results in matching any file

Returns:

The URI of the most recently modified file which matches the pattern, or `null` if it cannot be found