Package org.apache.pdfbox.contentstream.operator

Class OperatorProcessor

java.lang.Object

org.apache.pdfbox.contentstream.operator.OperatorProcessor

Direct Known Subclasses:

BeginMarkedContentSequence, BeginMarkedContentSequenceWithProperties, BeginText, Concatenate, DrawObject, DrawObject, EndMarkedContentSequence, EndText, GraphicsOperatorProcessor, MoveText, MoveTextSetLeading, NextLine, Restore, Save, SetCharSpacing, SetColor, SetFlatness, SetFontAndSize, SetGraphicsStateParameters, SetLineCapStyle, SetLineDashPattern, SetLineJoinStyle, SetLineMiterLimit, SetLineWidth, SetMatrix, SetNonStrokingColorSpace, SetRenderingIntent, SetStrokingColorSpace, SetTextHorizontalScaling, SetTextLeading, SetTextRenderingMode, SetTextRise, SetWordSpacing, ShowText, ShowTextAdjusted, ShowTextLine, ShowTextLineAndSpace

public abstract class OperatorProcessor
extends java.lang.Object

Processes a PDF operator.

Author:

Laurent Huault

Field Summary

Fields

Modifier and Type	Field	Description
protected PDFStreamEngine	context	The processing context.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	OperatorProcessor()	Creates a new OperatorProcessor.

Method Summary

Modifier and Type	Method	Description
boolean	checkArrayTypesClass(java.util.List<COSBase> operands, java.lang.Class clazz)	Check whether all operands list elements are an instance of a specific class.
protected PDFStreamEngine	getContext()	Returns the processing context.
abstract java.lang.String	getName()	Returns the name of this operator, e.g.
abstract void	process(Operator operator, java.util.List<COSBase> operands)	Process the operator.
void	setContext(PDFStreamEngine context)	Sets the processing context.

Methods inherited from class java.lang.Object

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

Field Detail

context

protected PDFStreamEngine context

The processing context.

Constructor Detail

OperatorProcessor

protected OperatorProcessor()

Creates a new OperatorProcessor.

Method Detail

getContext

protected final PDFStreamEngine getContext()

Returns the processing context.

Returns:

the processing context

setContext

public void setContext(PDFStreamEngine context)

Sets the processing context.

Parameters:

context - the processing context.

process

public abstract void process(Operator operator,
                             java.util.List<COSBase> operands)
                      throws java.io.IOException

Process the operator.

Parameters:

operator - the operator to process

operands - the operands to use when processing

Throws:

java.io.IOException - if the operator cannot be processed

getName

public abstract java.lang.String getName()

Returns the name of this operator, e.g. "BI".

checkArrayTypesClass

public boolean checkArrayTypesClass(java.util.List<COSBase> operands,
                                    java.lang.Class clazz)

Check whether all operands list elements are an instance of a specific class.

Parameters:

operands - The operands list.

clazz - The expected class.

Returns:

the boolean