Package org.apache.pdfbox.preflight.xobject

Class XObjFormValidator

java.lang.Object

org.apache.pdfbox.preflight.xobject.AbstractXObjValidator

org.apache.pdfbox.preflight.xobject.XObjFormValidator

All Implemented Interfaces:

XObjectValidator

public class XObjFormValidator
extends AbstractXObjValidator

This class validates XObject with the Form subtype.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) PDFormXObject	pdXObj	High level object which represents the XObjectForm

Fields inherited from class org.apache.pdfbox.preflight.xobject.AbstractXObjValidator

context, xobject

Constructor Summary

Constructors

Constructor	Description
XObjFormValidator(PreflightContext context, PDFormXObject xobj)

Method Summary

Modifier and Type	Method	Description
protected void	checkGroup()	A Form XObject may contain a Group object (Key =" Group").
protected void	checkMandatoryFields()	This method checks if required fields are present.
protected void	checkPS()	Check if there are no PS entry in the Form XObject dictionary
protected void	checkSubtype2Value()	Check the SUbtype2 entry according to the §6.2.5 of the ISO 190005-1:2005 specification.
void	validate()	Process the validation of the XObject.
protected void	validateXObjectContent()	An Form XObject is a ContentStream.
protected void	validateXObjectResources()

Methods inherited from class org.apache.pdfbox.preflight.xobject.AbstractXObjValidator

checkOPI, checkPostscriptXObject, checkReferenceXObject, checkSMask

Methods inherited from class java.lang.Object

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

Field Detail

pdXObj

PDFormXObject pdXObj

High level object which represents the XObjectForm

Constructor Detail

XObjFormValidator

public XObjFormValidator(PreflightContext context,
                         PDFormXObject xobj)

Method Detail

validate

public void validate()
              throws ValidationException

Description copied from interface: XObjectValidator

Process the validation of the XObject.

Specified by:

validate in interface XObjectValidator

Overrides:

validate in class AbstractXObjValidator

Throws:

ValidationException

checkMandatoryFields

protected void checkMandatoryFields()

Description copied from class: AbstractXObjValidator

This method checks if required fields are present.

Specified by:

checkMandatoryFields in class AbstractXObjValidator

validateXObjectContent

protected void validateXObjectContent()
                               throws ValidationException

An Form XObject is a ContentStream. This method method uses an instance of ContentStreamWrapper to check the Stream of this Form XObject.

Throws:

ValidationException

checkGroup

protected void checkGroup()

A Form XObject may contain a Group object (Key =" Group"). If a Group object is present, this method checks if the S entry is present and if its value is different from "Transparency".

checkPS

protected void checkPS()

Check if there are no PS entry in the Form XObject dictionary

checkSubtype2Value

protected void checkSubtype2Value()

Check the SUbtype2 entry according to the §6.2.5 of the ISO 190005-1:2005 specification.

validateXObjectResources

protected void validateXObjectResources()
                                 throws ValidationException

Throws:

ValidationException