org.apache.pdfbox.preflight.content

Class ContentStreamWrapper

java.lang.Object

org.apache.pdfbox.util.PDFStreamEngine

org.apache.pdfbox.preflight.content.ContentStreamEngine

org.apache.pdfbox.preflight.content.ContentStreamWrapper

public class ContentStreamWrapper
extends ContentStreamEngine

Field Summary

Fields inherited from class org.apache.pdfbox.preflight.content.ContentStreamEngine

contentStreamEngineOperators, context, cosDocument, processeedPage

Constructor Summary

Constructors

Constructor and Description
ContentStreamWrapper(PreflightContext _context, PDPage _page)

Method Summary

Modifier and Type	Method and Description
protected void	checkShowTextOperators(PDFOperator operator, List<?> arguments) Process Text Validation.
protected void	processOperator(PDFOperator operator, List arguments) This is used to handle an operation.
void	resetEnginContext()
void	validPageContentStream() Process the validation of a PageContent (The page is initialized by the constructor)
void	validPatternContentStream(COSStream pattern) Process the validation of a Tiling Pattern
void	validText(byte[] string) Process the validation of a Text operand contains in a ContentStream This validation checks that : The font isn't missing if the Rendering Mode isn't 3 The font metrics are consistent All character used in the text are defined in the font program.
void	validXObjContentStream(PDXObjectForm xobj) Process the validation of a XObject Form

Methods inherited from class org.apache.pdfbox.preflight.content.ContentStreamEngine

checkColorOperators, checkSetColorSpaceOperators, registerError, registerOperatorProcessor, validImageColorSpace, validImageFilter, validNumberOfGraphicStates, validRenderingIntent

Methods inherited from class org.apache.pdfbox.util.PDFStreamEngine

getColorSpaces, getCurrentPage, getFonts, getGraphicsStack, getGraphicsState, getGraphicsStates, getResources, getTextLineMatrix, getTextMatrix, getTotalCharCnt, getValidCharCnt, getXObjects, inspectFontEncoding, isForceParsing, processEncodedText, processOperator, processStream, processSubStream, processTextPosition, resetEngine, setColorSpaces, setFonts, setForceParsing, setGraphicsStack, setGraphicsState, setGraphicsStates, setTextLineMatrix, setTextMatrix

Methods inherited from class java.lang.Object

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

Constructor Detail

ContentStreamWrapper

public ContentStreamWrapper(PreflightContext _context,
                            PDPage _page)

Method Detail

validPageContentStream

public void validPageContentStream()
                            throws ValidationException

Process the validation of a PageContent (The page is initialized by the constructor)

Throws:

ValidationException

validXObjContentStream

public void validXObjContentStream(PDXObjectForm xobj)
                            throws ValidationException

Process the validation of a XObject Form

Parameters:

xobj -

Throws:

ValidationException

validPatternContentStream

public void validPatternContentStream(COSStream pattern)
                               throws ValidationException

Process the validation of a Tiling Pattern

Parameters:

pattern -

Throws:

ValidationException

resetEnginContext

public final void resetEnginContext()

processOperator

protected void processOperator(PDFOperator operator,
                               List arguments)
                        throws IOException

Description copied from class: PDFStreamEngine

This is used to handle an operation.

Overrides:

processOperator in class PDFStreamEngine

Parameters:

operator - The operation to perform.

arguments - The list of arguments.

Throws:

IOException - If there is an error processing the operation.

checkShowTextOperators

protected void checkShowTextOperators(PDFOperator operator,
                                      List<?> arguments)
                               throws ContentStreamException,
                                      IOException

Process Text Validation. According to the operator one of the both method will be called. (validStringDefinition(PDFOperator operator, List arguments) / validStringArray(PDFOperator operator, List arguments))

Parameters:

operator -

arguments -

Throws:

ContentStreamException

IOException

validText

public void validText(byte[] string)
               throws IOException

Process the validation of a Text operand contains in a ContentStream This validation checks that :

• The font isn't missing if the Rendering Mode isn't 3
• The font metrics are consistent
• All character used in the text are defined in the font program.

Parameters:

string -

Throws:

IOException