Class/Object

com.twitter.scalding

FileSource

Related Docs: object FileSource | package scalding

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abstract class FileSource extends SchemedSource with LocalSourceOverride with HfsTapProvider

This is a base class for File-based sources

Source
FileSource.scala
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  1. FileSource
  2. HfsTapProvider
  3. LocalSourceOverride
  4. SchemedSource
  5. Source
  6. Serializable
  7. AnyRef
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Instance Constructors

  1. new FileSource()

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Abstract Value Members

  1. abstract def hdfsPaths: Iterable[String]

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  2. abstract def localPaths: Iterable[String]

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    A path to use for the local tap.

    A path to use for the local tap.

    Definition Classes
    LocalSourceOverride

Concrete Value Members

  1. final def !=(arg0: Any): Boolean

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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    Definition Classes
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  4. final def asInstanceOf[T0]: T0

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  5. def checkFlowDefNotNull()(implicit flowDef: FlowDef, mode: Mode): Unit

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  6. def clone(): AnyRef

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    protected[java.lang]
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    @throws( ... )
  7. def createHdfsReadTap(hdfsMode: Hdfs): Tap[JobConf, _, _]

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    Attributes
    protected
  8. def createHfsTap(scheme: Scheme[JobConf, RecordReader[_, _], OutputCollector[_, _], _, _], path: String, sinkMode: SinkMode): Hfs

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    Definition Classes
    HfsTapProvider
  9. def createLocalTap(sinkMode: SinkMode): Tap[JobConf, _, _]

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    Creates a local tap.

    Creates a local tap.

    sinkMode

    The mode for handling output conflicts.

    returns

    A tap.

    Definition Classes
    LocalSourceOverride
  10. def createTap(readOrWrite: AccessMode)(implicit mode: Mode): Tap[_, _, _]

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    Subclasses of Source MUST override this method.

    Subclasses of Source MUST override this method. They may call out to TestTapFactory for making Taps suitable for testing.

    Definition Classes
    FileSourceSource
  11. final def eq(arg0: AnyRef): Boolean

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  12. def equals(arg0: Any): Boolean

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    Definition Classes
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  13. def finalize(): Unit

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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )
  14. final def getClass(): Class[_]

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    Definition Classes
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  15. def goodHdfsPaths(hdfsMode: Hdfs): Iterable[String]

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    Attributes
    protected
  16. def hashCode(): Int

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    Definition Classes
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  17. def hdfsReadPathsAreGood(conf: Configuration): Boolean

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    Attributes
    protected
  18. def hdfsScheme: Scheme[JobConf, RecordReader[_, _], OutputCollector[_, _], _, _]

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    The scheme to use if the source is on hdfs.

    The scheme to use if the source is on hdfs.

    Definition Classes
    SchemedSource
  19. def hdfsWritePath: String

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  20. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  21. def localScheme: Scheme[Properties, InputStream, OutputStream, _, _]

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    The scheme to use if the source is local.

    The scheme to use if the source is local.

    Definition Classes
    SchemedSource
  22. def localWritePath: String

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    Definition Classes
    LocalSourceOverride
  23. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
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  24. final def notify(): Unit

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    Definition Classes
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  25. final def notifyAll(): Unit

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    Definition Classes
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  26. def pathIsGood(globPattern: String, conf: Configuration): Boolean

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    Determines if a path is 'valid' for this source.

    Determines if a path is 'valid' for this source. In strict mode all paths must be valid. In non-strict mode, all invalid paths will be filtered out.

    Subclasses can override this to validate paths.

    The default implementation is a quick sanity check to look for missing or empty directories. It is necessary but not sufficient -- there are cases where this will return true but there is in fact missing data.

    TODO: consider writing a more in-depth version of this method in TimePathedSource that looks for TODO: missing days / hours etc.

    Attributes
    protected
  27. def read(implicit flowDef: FlowDef, mode: Mode): Pipe

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    Definition Classes
    Source
  28. val sinkMode: SinkMode

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    Definition Classes
    SchemedSource
  29. def sourceId: String

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    This is a name the refers to this exact instance of the source (put another way, if s1.sourceId == s2.sourceId, the job should work the same if one is replaced with the other

    This is a name the refers to this exact instance of the source (put another way, if s1.sourceId == s2.sourceId, the job should work the same if one is replaced with the other

    Definition Classes
    Source
  30. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
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  31. def toString(): String

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  32. def transformForRead(pipe: Pipe): Pipe

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    Attributes
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  33. def transformForWrite(pipe: Pipe): Pipe

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  34. def transformInTest: Boolean

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    The mock passed in to scalding.JobTest may be considered as a mock of the Tap or the Source.

    The mock passed in to scalding.JobTest may be considered as a mock of the Tap or the Source. By default, as of 0.9.0, it is considered as a Mock of the Source. If you set this to true, the mock in TestMode will be considered to be a mock of the Tap (which must be transformed) and not the Source.

    Definition Classes
    Source
  35. def validateTaps(mode: Mode): Unit

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    Definition Classes
    FileSourceSource
  36. final def wait(): Unit

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

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    @throws( ... )
  38. final def wait(arg0: Long): Unit

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    @throws( ... )
  39. def writeFrom(pipe: Pipe)(implicit flowDef: FlowDef, mode: Mode): Pipe

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    write the pipe but return the input so it can be chained into the next operation

    write the pipe but return the input so it can be chained into the next operation

    Definition Classes
    Source

Deprecated Value Members

  1. def readAtSubmitter[T](implicit mode: Mode, conv: TupleConverter[T]): Stream[T]

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    Definition Classes
    Source
    Annotations
    @deprecated
    Deprecated

    (Since version 0.9.0) replace with Mappable.toIterator

Inherited from HfsTapProvider

Inherited from LocalSourceOverride

Inherited from SchemedSource

Inherited from Source

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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