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, OpaquePDFRenderer.OpaqueSetGraphicsStateParameters, 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, StubOperator

public abstract class OperatorProcessor
extends Object

Processes a PDF operator.

Field Summary

Fields

Modifier and Type	Field	Description
private final PDFStreamEngine	context	The processing context.

Constructor Summary

Constructors

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

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Details

context

private final PDFStreamEngine context

The processing context.

Constructor Details

OperatorProcessor

protected OperatorProcessor(PDFStreamEngine context)

Creates a new OperatorProcessor.

Parameters:

context - the processing context to be used

Method Details

getContext

protected final PDFStreamEngine getContext()

Returns the processing context.

Returns:

the processing context

process

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

Process the operator.

Parameters:

operator - the operator to process

operands - the operands to use when processing

Throws:

IOException - if the operator cannot be processed

getName

public abstract String getName()

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

Returns:

the name of the operator

checkArrayTypesClass

public boolean checkArrayTypesClass(List<COSBase> operands,
 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:

true if all operands list elements are an instance of the given class