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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
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****************************************************************************/
package org.apache.padaf.preflight.annotation;
import static org.apache.padaf.preflight.ValidationConstants.ANNOT_DICTIONARY_KEY_CONTENTS;
import static org.apache.padaf.preflight.ValidationConstants.ANNOT_DICTIONARY_KEY_F;
import static org.apache.padaf.preflight.ValidationConstants.ANNOT_DICTIONARY_KEY_RECT;
import static org.apache.padaf.preflight.ValidationConstants.DICTIONARY_KEY_SUBTYPE;
import java.util.List;
import org.apache.padaf.preflight.DocumentHandler;
import org.apache.padaf.preflight.ValidationConstants;
import org.apache.padaf.preflight.ValidationResult;
import org.apache.padaf.preflight.ValidationResult.ValidationError;
import org.apache.pdfbox.cos.COSDictionary;
import org.apache.pdfbox.cos.COSName;
import org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotationText;
/**
* Validation class for Text Annotation
*/
public class TextAnnotationValidator extends AnnotationValidator {
/**
* PDFBox object which wraps the annotation dictionary
*/
protected PDAnnotationText pdText = null;
public TextAnnotationValidator(DocumentHandler handler,
COSDictionary annotDictionary) {
super(handler, annotDictionary);
this.pdText = new PDAnnotationText(annotDictionary);
this.pdAnnot = this.pdText;
}
/*
* (non-Javadoc)
*
* @see
* net.awl.edoc.pdfa.validation.annotation.AnnotationValidator#checkFlags(
* java.util.List)
*/
protected boolean checkFlags(List<ValidationError> errors) {
// ---- call common flags settings
boolean result = super.checkFlags(errors);
// ---- For Text Annotation, this two flags should be set to avoid potential
// ambiguity between the annotation dictionary and the reader behavior.
result = result && this.pdAnnot.isNoRotate();
result = result && this.pdAnnot.isNoZoom();
if (!result) {
errors.add(new ValidationResult.ValidationError(
ValidationConstants.ERROR_ANNOT_NOT_RECOMMENDED_FLAG));
}
return result;
}
/*
* (non-Javadoc)
*
* @seenet.awl.edoc.pdfa.validation.annotation.AnnotationValidator#
* checkMandatoryFields(java.util.List)
*/
protected boolean checkMandatoryFields(List<ValidationError> errors) {
boolean subtype = false;
boolean rect = false;
boolean f = false;
boolean contents = false;
for (Object key : this.annotDictionary.keySet()) {
if (!(key instanceof COSName)) {
errors.add(new ValidationResult.ValidationError(
ValidationConstants.ERROR_SYNTAX_DICTIONARY_KEY_INVALID,
"Invalid key in The Annotation dictionary"));
return false;
}
String cosName = ((COSName) key).getName();
if (cosName.equals(ANNOT_DICTIONARY_KEY_RECT)) {
rect = true;
}
if (cosName.equals(DICTIONARY_KEY_SUBTYPE)) {
subtype = true;
}
if (cosName.equals(ANNOT_DICTIONARY_KEY_F)) {
f = true;
}
if (cosName.equals(ANNOT_DICTIONARY_KEY_CONTENTS)) {
contents = true;
}
}
/*
* ---- Since PDF 1.5, two optional entries are possible. These new entries
* seem to e compatible with the PDF/A specification (used to set a State to
* the annotation - ex : rejected, reviewed...)
*/
boolean result = (subtype && rect && f && contents);
if (!result) {
errors.add(new ValidationResult.ValidationError(
ValidationConstants.ERROR_ANNOT_MISSING_FIELDS));
}
return result;
}
}