SimpleMemoryStream

This is a stream with a lookback buffer. It allows you to read bytes from it and sometime go back and fetch previous bytes. It also supports searching for a specific sequence of bytes.

The pattern of usage for this stream is this.

Create an instance of za.co.absa.cobrix.cobol.reader.stream.SimpleStream.
Create an instance of SimpleMemoryStream and pass the lookback buffer size and the object created at the first step.
Search a sequence of bytes in the stream.
Once the sequence of bytes is found you can fetch bytes before the sequence and after it by providing the specific indexes. This memory stream provides getBytes interface which accepts indexes. The stream will be read sequentially and once values from bigger indexes are read you can look back only limited number of bytes.

Linear Supertypes

AnyRef, Any

Instance Constructors

new SimpleMemoryStream(stream: SimpleStream, lookbackBufferSize: Int)

stream
An instance of za.co.absa.cobrix.cobol.reader.stream.SimpleStream as the source of bytes.
lookbackBufferSize
The number of bytes to keep in the look back buffer.

Value Members

final def !=(arg0: Any): Boolean

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

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

Definition Classes
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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(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
def getBytes(buffer: Array[Byte], startIndex: Long, endIndex: Long): Int
final def getClass(): Class[_]

Definition Classes
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def hashCode(): Int

Definition Classes
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final def isInstanceOf[T0]: Boolean

Definition Classes
Any
var largestAvailableIndex: Long
val loopbackBuffer: Array[Byte]
final def ne(arg0: AnyRef): Boolean

Definition Classes
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final def notify(): Unit

Definition Classes
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final def notifyAll(): Unit

Definition Classes
AnyRef
def search(searchBytes: Array[Byte], startIndex: Long): Long

Searches the stream for the specified sequence of bytes.
Searches the stream for the specified sequence of bytes. Returns the index of the beginning of the found sequence, -1 if not found.
def searchOutOfLookbackBuffer(searchBytes: Array[Byte], initialSearchState: Int): Long

Searches the sequence of bytes outsize of the lookback buffer.
Searches the sequence of bytes outsize of the lookback buffer. Returns the index of the beginning of the found sequence, -1 if not found.
var smallestAvailableIndex: Long
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
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Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Doc: package stream

class SimpleMemoryStream extends AnyRef

Instance Constructors

new SimpleMemoryStream(stream: SimpleStream, lookbackBufferSize: Int)

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

def getBytes(buffer: Array[Byte], startIndex: Long, endIndex: Long): Int

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

var largestAvailableIndex: Long

val loopbackBuffer: Array[Byte]

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def search(searchBytes: Array[Byte], startIndex: Long): Long

def searchOutOfLookbackBuffer(searchBytes: Array[Byte], initialSearchState: Int): Long

var smallestAvailableIndex: Long

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 AnyRef

Inherited from Any

Ungrouped