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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 specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package org.apache.fop.render.pdf.extensions;
import org.xml.sax.Attributes;
import org.xml.sax.Locator;
import org.apache.fop.apps.FOPException;
import org.apache.fop.fo.FONode;
import org.apache.fop.fo.PropertyList;
// CSOFF: LineLengthCheck
/**
* Extension element for collection entries: pdf:{array,boolean,dictionary,name,number,reference,string}. The specific type
* of entry is established at construction type.
*/
public class PDFCollectionEntryElement extends AbstractPDFExtensionElement {
public static final String ATT_KEY = PDFCollectionEntryExtension.PROPERTY_KEY;
private PDFCollectionEntryExtension extension;
private StringBuffer characters;
PDFCollectionEntryElement(FONode parent, PDFObjectType type, PDFCollectionEntryExtension extension) {
super(parent);
this.extension = extension;
}
PDFCollectionEntryElement(FONode parent, PDFObjectType type) {
this(parent, type, createExtension(type));
}
private static PDFCollectionEntryExtension createExtension(PDFObjectType type) {
if (type == PDFObjectType.Reference) {
return new PDFReferenceExtension();
} else {
return new PDFCollectionEntryExtension(type);
}
}
public PDFCollectionEntryExtension getExtension() {
return extension;
}
@Override
public void processNode(String elementName, Locator locator, Attributes attlist, PropertyList propertyList) throws FOPException {
if (parent instanceof PDFDictionaryElement) {
String key = attlist.getValue(ATT_KEY);
if (key == null) {
missingPropertyError(ATT_KEY);
} else if (key.length() == 0) {
invalidPropertyValueError(ATT_KEY, key, null);
} else {
extension.setKey(key);
}
}
}
@Override
public void startOfNode() throws FOPException {
super.startOfNode();
if (parent instanceof PDFDictionaryElement) {
if (!PDFDictionaryType.hasValueOfElementName(parent.getLocalName())) {
invalidChildError(getLocator(), parent.getName(), getNamespaceURI(), getName(), null);
}
}
}
@Override
protected void characters(char[] data, int start, int length, PropertyList pList, Locator locator) throws FOPException {
if (capturePCData(extension.getType())) {
if (characters == null) {
characters = new StringBuffer((length < 16) ? 16 : length);
}
characters.append(data, start, length);
}
}
private boolean capturePCData(PDFObjectType type) {
if (type == PDFObjectType.Array) {
return false;
} else if (type == PDFObjectType.Dictionary) {
return false;
} else {
return (type != PDFObjectType.Reference);
}
}
@Override
public void endOfNode() throws FOPException {
if (capturePCData(extension.getType())) {
if (extension.getType() == PDFObjectType.Boolean) {
String value = (characters != null) ? characters.toString() : "";
if (!value.equals("true") && !value.equals("false")) {
invalidPropertyValueError("<value>", value, null);
}
extension.setValue(Boolean.valueOf(value));
} else if (extension.getType() == PDFObjectType.Name) {
String value = (characters != null) ? characters.toString() : "";
if (value.length() == 0) {
invalidPropertyValueError("<value>", value, null);
}
extension.setValue(value);
} else if (extension.getType() == PDFObjectType.Number) {
String value = (characters != null) ? characters.toString() : "";
try {
double d = Double.parseDouble(value);
if (Math.abs(Math.floor(d) - d) < 1E-10) {
extension.setValue(Long.valueOf((long) d));
} else {
extension.setValue(Double.valueOf(d));
}
} catch (NumberFormatException e) {
invalidPropertyValueError("<value>", value, null);
}
} else if (extension.getType() == PDFObjectType.String) {
String value = (characters != null) ? characters.toString() : "";
extension.setValue(value);
}
}
super.endOfNode();
}
@Override
public String getLocalName() {
return extension.getType().elementName();
}
}
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