org.apache.pdfbox.preflight.action.NamedAction Maven / Gradle / Ivy
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package org.apache.pdfbox.preflight.action;
import static org.apache.pdfbox.preflight.PreflightConstants.ACTION_DICTIONARY_VALUE_ATYPE_NAMED_FIRST;
import static org.apache.pdfbox.preflight.PreflightConstants.ACTION_DICTIONARY_VALUE_ATYPE_NAMED_LAST;
import static org.apache.pdfbox.preflight.PreflightConstants.ACTION_DICTIONARY_VALUE_ATYPE_NAMED_NEXT;
import static org.apache.pdfbox.preflight.PreflightConstants.ACTION_DICTIONARY_VALUE_ATYPE_NAMED_PREV;
import static org.apache.pdfbox.preflight.PreflightConstants.ERROR_ACTION_FORBIDDEN_ACTIONS_NAMED;
import static org.apache.pdfbox.preflight.PreflightConstants.ERROR_ACTION_MISING_KEY;
import org.apache.pdfbox.cos.COSDictionary;
import org.apache.pdfbox.cos.COSName;
import org.apache.pdfbox.preflight.PreflightContext;
import org.apache.pdfbox.preflight.ValidationResult.ValidationError;
/**
* ActionManager for the Named action. Named action is valid if N entry is present with one of the four values :
*
* - NextPage
*
- PrevPage
*
- FirstPage
*
- LastPage
*
*/
public class NamedAction extends AbstractActionManager
{
/**
* @param amFact Instance of ActionManagerFactory used to create ActionManager to check Next actions.
* @param adict the COSDictionary of the action wrapped by this class.
* @param ctx the preflight context.
* @param aaKey the name of the key which identify the action in a additional action dictionary.
*/
public NamedAction(ActionManagerFactory amFact, COSDictionary adict, PreflightContext ctx, String aaKey)
{
super(amFact, adict, ctx, aaKey);
}
/*
* (non-Javadoc)
*
* @see org.apache.pdfbox.preflight.action.AbstractActionManager#valid(java.util .List)
*/
@Override
protected boolean innerValid()
{
String n = this.actionDictionary.getNameAsString(COSName.N);
// ---- N entry is mandatory
if (n == null || n.isEmpty())
{
context.addValidationError(new ValidationError(ERROR_ACTION_MISING_KEY,
"N entry is mandatory for the NamedActions"));
return false;
}
// ---- Only Predefine name actions are authorized
if (!(ACTION_DICTIONARY_VALUE_ATYPE_NAMED_FIRST.equals(n) || ACTION_DICTIONARY_VALUE_ATYPE_NAMED_LAST.equals(n)
|| ACTION_DICTIONARY_VALUE_ATYPE_NAMED_NEXT.equals(n) || ACTION_DICTIONARY_VALUE_ATYPE_NAMED_PREV
.equals(n)))
{
context.addValidationError(new ValidationError(ERROR_ACTION_FORBIDDEN_ACTIONS_NAMED, n
+ " isn't authorized as named action"));
return false;
}
return true;
}
}