/*
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.XMLAttribute;
import org.mizartools.utility.xml.XMLElement;
public class Consider extends AuxiliaryItem implements IElement {
public static final String NAME = "Consider";
private INode parentNode;
private Integer nr = null;
private Proposition proposition = null;
private Justification justification = null;
private LinkedList<Typ> typList = new LinkedList<Typ>();
private LinkedList<Proposition> propositionList = new LinkedList<Proposition>();
private Consider(INode parentNode){
this.parentNode = parentNode;
}
public INode getParentNode() {
return parentNode;
}
public static Consider newInstance(INode parentNode, LinkedList<XMLElement> xmlElementList) throws ElementParseException {
Consider consider = new Consider(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);
}
for (XMLAttribute xmlAttribute : xmlElement.getXMLAttributeList()){
if (xmlAttribute.getName().equals("nr")){
if (consider.nr == null){
try {consider.nr = Integer.parseInt(xmlAttribute.getValue());}
catch (Exception e) {throw new ElementParseException(ElementParseException.NOT_VALID_TYPE_OF_ATTRIBUTE_ELEMENT, "XMLElement has an attribute " + xmlAttribute.getName() + " with an invalid type", xmlElementList);};
} else {
throw new ElementParseException(ElementParseException.DUPLICATE_ATTRIBUTE_ELEMENT, "XMLElement has a duplicate attribute " + xmlAttribute.getName(), xmlElementList);
}
} else
throw new ElementParseException(ElementParseException.NOT_VALID_ATTRIBUTE_ELEMENT, "XMLElement has not a valid attribute " + xmlAttribute.getName(), 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 (xmlElement.getName().equals("Proposition") && consider.proposition == null){
consider.proposition = Proposition.newInstance(consider, xmlElementList);
} else if (Justification.isJustification(xmlElement.getName())){
if (consider.justification == null) {
consider.justification = Justification.newInstance(consider, xmlElementList);
} else {
throw new ElementParseException(ElementParseException.DUPLICATE_ELEMENT, "XMLElement list contains a duplicated <Justification> in element " + NAME, xmlElementList);
}
} else if (xmlElement.getName().equals("Typ")){
consider.typList.add(Typ.newInstance(consider, xmlElementList));
} else if (xmlElement.getName().equals("Proposition")){
consider.propositionList.add(Proposition.newInstance(consider, xmlElementList));
} else
throw new ElementParseException(ElementParseException.NOT_VALID_ELEMENT, "The XMLElement " + xmlElement.getName() + " is not valid in " + NAME, xmlElementList);
}
}
return consider;
}
public LinkedList<XMLElement> getXMLElementList() {
LinkedList<XMLElement> xmlElementList = new LinkedList<XMLElement>();
XMLElement xmlElement = new XMLElement(NAME);
if (this.nr != null) {
XMLAttribute xmlAttribute = new XMLAttribute("nr", this.nr);
xmlElement.getXMLAttributeList().add(xmlAttribute);
}
boolean isEmpty = !(proposition != null
|| justification != null || !typList.isEmpty()
|| !propositionList.isEmpty());
xmlElement.setEmpty(isEmpty);
xmlElementList.add(xmlElement);
if (this.proposition != null){
xmlElementList.addAll(this.proposition.getXMLElementList());
}
if (this.justification != null){
xmlElementList.addAll(this.justification.getXMLElementList());
}
for (Typ typ : this.typList){
xmlElementList.addAll(typ.getXMLElementList());
}
for (Proposition proposition : this.propositionList){
xmlElementList.addAll(proposition.getXMLElementList());
}
if (!isEmpty) {
xmlElement = new XMLElement(NAME);
xmlElement.setEndElement(true);
xmlElementList.add(xmlElement);
}
return xmlElementList;
}
public Integer getNr(){
return nr;
}
public Proposition getProposition(){
return proposition;
}
public Justification getJustification(){
return justification;
}
public LinkedList<Typ> getTypList(){
return typList;
}
public LinkedList<Proposition> getPropositionList(){
return propositionList;
}
@Override
public void accept(Visitor visitor) {
if (visitor.visit(this)) {
for(Typ typ: this.typList) {
typ.accept(visitor);
}
for(Proposition proposition: this.propositionList) {
proposition.accept(visitor);
}
}
visitor.endVisit(this);
}
@Override
public String toString(){
ToStringVisitor toStringVisitor = new ToStringVisitor();
this.accept(toStringVisitor);
return toStringVisitor.toString();
}
}