ListingFileCatalog

Instance Constructors

new ListingFileCatalog(sparkSession: SparkSession, paths: Seq[Path], parameters: Map[String, String], partitionSchema: Option[StructType], ignoreFileNotFound: Boolean = false)

paths
a list of paths to scan
parameters
as set of options to control discovery
partitionSchema
an optional partition schema that will be use to provide types for the discovered partitions
ignoreFileNotFound
if true, return empty file list when encountering a FileNotFoundException in file listing. Note that this is a hack for SPARK-16313. We should get rid of this flag in the future.

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def allFiles(): Seq[FileStatus]

Returns all the valid files.
Returns all the valid files.

Definition Classes
PartitioningAwareFileCatalog → FileCatalog
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(other: Any): Boolean

Definition Classes
ListingFileCatalog → AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
val hadoopConf: Configuration

Attributes
protected
Definition Classes
PartitioningAwareFileCatalog
def hashCode(): Int

Definition Classes
ListingFileCatalog → AnyRef → Any
def inferPartitioning(): PartitionSpec

Attributes
protected
Definition Classes
PartitioningAwareFileCatalog
def initializeLogIfNecessary(isInterpreter: Boolean): Unit

Attributes
protected
Definition Classes
Logging
final def isDebugEnabled: Boolean

Attributes
protected
Definition Classes
Logging
final def isInfoEnabled: Boolean

Attributes
protected
Definition Classes
Logging
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
final def isTraceEnabled: Boolean

Attributes
protected
Definition Classes
Logging
def leafDirToChildrenFiles: Map[Path, Array[FileStatus]]

Attributes
protected
Definition Classes
ListingFileCatalog → PartitioningAwareFileCatalog
def leafFiles: LinkedHashMap[Path, FileStatus]

Attributes
protected
Definition Classes
ListingFileCatalog → PartitioningAwareFileCatalog
def listFiles(filters: Seq[Expression]): Seq[Partition]

Returns all valid files grouped into partitions when the data is partitioned.
Returns all valid files grouped into partitions when the data is partitioned. If the data is unpartitioned, this will return a single partition with no partition values.
filters
The filters used to prune which partitions are returned. These filters must only refer to partition columns and this method will only return files where these predicates are guaranteed to evaluate to true. Thus, these filters will not need to be evaluated again on the returned data.

Definition Classes
PartitioningAwareFileCatalog → FileCatalog
def listLeafFiles(paths: Seq[Path]): LinkedHashSet[FileStatus]

List leaf files of given paths.
List leaf files of given paths. This method will submit a Spark job to do parallel listing whenever there is a path having more files than the parallel partition discovery discovery threshold.
This is publicly visible for testing.
def log: Logger

Attributes
protected
Definition Classes
Logging
def logDebug(msg: ⇒ String, throwable: Throwable): Unit

Attributes
protected
Definition Classes
Logging
def logDebug(msg: ⇒ String): Unit

Attributes
protected
Definition Classes
Logging
def logError(msg: ⇒ String, throwable: Throwable): Unit

Attributes
protected
Definition Classes
Logging
def logError(msg: ⇒ String): Unit

Attributes
protected
Definition Classes
Logging
def logInfo(msg: ⇒ String, throwable: Throwable): Unit

Attributes
protected
Definition Classes
Logging
def logInfo(msg: ⇒ String): Unit

Attributes
protected
Definition Classes
Logging
def logName: String

Attributes
protected
Definition Classes
Logging
def logTrace(msg: ⇒ String, throwable: Throwable): Unit

Attributes
protected
Definition Classes
Logging
def logTrace(msg: ⇒ String): Unit

Attributes
protected
Definition Classes
Logging
def logWarning(msg: ⇒ String, throwable: Throwable): Unit

Attributes
protected
Definition Classes
Logging
def logWarning(msg: ⇒ String): Unit

Attributes
protected
Definition Classes
Logging
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
def partitionSpec(): PartitionSpec

Returns the specification of the partitions inferred from the data.
Returns the specification of the partitions inferred from the data.

Definition Classes
ListingFileCatalog → FileCatalog
val paths: Seq[Path]

a list of paths to scan
a list of paths to scan

Definition Classes
ListingFileCatalog → FileCatalog
def refresh(): Unit

Refresh the file listing
Refresh the file listing

Definition Classes
ListingFileCatalog → FileCatalog
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Doc: package datasources

class ListingFileCatalog extends PartitioningAwareFileCatalog

Instance Constructors

new ListingFileCatalog(sparkSession: SparkSession, paths: Seq[Path], parameters: Map[String, String], partitionSchema: Option[StructType], ignoreFileNotFound: Boolean = false)

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

def allFiles(): Seq[FileStatus]

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(other: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

val hadoopConf: Configuration

def hashCode(): Int

def inferPartitioning(): PartitionSpec

def initializeLogIfNecessary(isInterpreter: Boolean): Unit

final def isDebugEnabled: Boolean

final def isInfoEnabled: Boolean

final def isInstanceOf[T0]: Boolean

final def isTraceEnabled: Boolean

def leafDirToChildrenFiles: Map[Path, Array[FileStatus]]

def leafFiles: LinkedHashMap[Path, FileStatus]

def listFiles(filters: Seq[Expression]): Seq[Partition]

def listLeafFiles(paths: Seq[Path]): LinkedHashSet[FileStatus]

def log: Logger

def logDebug(msg: ⇒ String, throwable: Throwable): Unit

def logDebug(msg: ⇒ String): Unit

def logError(msg: ⇒ String, throwable: Throwable): Unit

def logError(msg: ⇒ String): Unit

def logInfo(msg: ⇒ String, throwable: Throwable): Unit

def logInfo(msg: ⇒ String): Unit

def logName: String

def logTrace(msg: ⇒ String, throwable: Throwable): Unit

def logTrace(msg: ⇒ String): Unit

def logWarning(msg: ⇒ String, throwable: Throwable): Unit

def logWarning(msg: ⇒ String): Unit

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def partitionSpec(): PartitionSpec

val paths: Seq[Path]

def refresh(): Unit

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

Inherited from PartitioningAwareFileCatalog

Inherited from Logging

Inherited from FileCatalog

Inherited from AnyRef

Inherited from Any

Ungrouped