/*
Copyright (c) 2011 Mizar Tools Contributors (mizartools.org)
Licensed 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.
*/
/* Contributors :
* 2011-02-05 Marco Riccardi - initial implementation
* 2011-03-25 Marco Riccardi - implementation of visitor pattern
*
*/
package org.mizartools.system.xml;
import java.util.LinkedList;
import org.mizartools.system.ElementParseException;
import org.mizartools.system.IElement;
import org.mizartools.system.INode;
import org.mizartools.utility.xml.XMLElement;
public class PartialDef implements IElement {
public static final String NAME = "PartialDef";
private INode parentNode;
private Formula formula1 = null;
private Term term = null;
private Formula formula2 = null;
private PartialDef(INode parentNode){
this.parentNode = parentNode;
}
public INode getParentNode() {
return parentNode;
}
public static PartialDef newInstance(INode parentNode, LinkedList<XMLElement> xmlElementList) throws ElementParseException {
PartialDef partialDef = new PartialDef(parentNode);
XMLElement xmlElement = xmlElementList.poll();
if (!xmlElement.getName().equals(NAME)){
throw new ElementParseException(ElementParseException.NOT_VALID_ELEMENT, "XMLElement is a " + xmlElement.getName() + " not a " + NAME, xmlElementList);
}
if (!xmlElement.isEmpty()){
while (true){
xmlElement = xmlElementList.peek();
if (xmlElement == null){
throw new ElementParseException(ElementParseException.UNEXPECTED_END_OF_FILE, "Unexpected end of XMLElement list");
}
if (xmlElement.getName().equals(NAME) && xmlElement.isEndElement()){
xmlElement = xmlElementList.poll();
break;
}
if (Formula.isFormula(xmlElement.getName()) && partialDef.formula1 == null && partialDef.term == null) {
partialDef.formula1 = Formula.newInstance(partialDef, xmlElementList);
} else if (Term.isTerm(xmlElement.getName())){
if (partialDef.term == null) {
partialDef.term = Term.newInstance(partialDef, xmlElementList);
} else {
throw new ElementParseException(ElementParseException.DUPLICATE_ELEMENT, "XMLElement list contains a duplicated <Term> in element " + NAME, xmlElementList);
}
} else if (Formula.isFormula(xmlElement.getName())){
if (partialDef.formula2 == null) {
partialDef.formula2 = Formula.newInstance(partialDef, xmlElementList);
} else {
throw new ElementParseException(ElementParseException.DUPLICATE_ELEMENT, "XMLElement list contains a duplicated <Formula> in element " + NAME, xmlElementList);
}
} else
throw new ElementParseException(ElementParseException.NOT_VALID_ELEMENT, "The XMLElement " + xmlElement.getName() + " is not valid in " + NAME, xmlElementList);
}
}
return partialDef;
}
public LinkedList<XMLElement> getXMLElementList() {
LinkedList<XMLElement> xmlElementList = new LinkedList<XMLElement>();
XMLElement xmlElement = new XMLElement(NAME);
boolean isEmpty = !(formula1 != null
|| term != null || formula2 != null);
xmlElement.setEmpty(isEmpty);
xmlElementList.add(xmlElement);
if (this.formula1 != null){
xmlElementList.addAll(this.formula1.getXMLElementList());
}
if (this.term != null){
xmlElementList.addAll(this.term.getXMLElementList());
}
if (this.formula2 != null){
xmlElementList.addAll(this.formula2.getXMLElementList());
}
if (!isEmpty) {
xmlElement = new XMLElement(NAME);
xmlElement.setEndElement(true);
xmlElementList.add(xmlElement);
}
return xmlElementList;
}
public Formula getFormula1() {
return formula1;
}
public Term getTerm() {
return term;
}
public Formula getFormula2() {
return formula2;
}
@Override
public void accept(Visitor visitor) {
if (visitor.visit(this)) {}
visitor.endVisit(this);
}
@Override
public String toString(){
ToStringVisitor toStringVisitor = new ToStringVisitor();
this.accept(toStringVisitor);
return toStringVisitor.toString();
}
}