/*
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 EqArgs implements IElement {
public static final String NAME = "EqArgs";
private INode parentNode;
private LinkedList<Pair> pairList = new LinkedList<Pair>();
private EqArgs(INode parentNode){
this.parentNode = parentNode;
}
public INode getParentNode() {
return parentNode;
}
public static EqArgs newInstance(INode parentNode, LinkedList<XMLElement> xmlElementList) throws ElementParseException {
EqArgs eqArgs = new EqArgs(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 (xmlElement.getName().equals("Pair")){
eqArgs.pairList.add(Pair.newInstance(eqArgs, xmlElementList));
} else
throw new ElementParseException(ElementParseException.NOT_VALID_ELEMENT, "The XMLElement " + xmlElement.getName() + " is not valid in " + NAME, xmlElementList);
}
}
return eqArgs;
}
public LinkedList<XMLElement> getXMLElementList() {
LinkedList<XMLElement> xmlElementList = new LinkedList<XMLElement>();
XMLElement xmlElement = new XMLElement(NAME);
boolean isEmpty = !(!pairList.isEmpty());
xmlElement.setEmpty(isEmpty);
xmlElementList.add(xmlElement);
for (Pair pair : this.pairList){
xmlElementList.addAll(pair.getXMLElementList());
}
if (!isEmpty) {
xmlElement = new XMLElement(NAME);
xmlElement.setEndElement(true);
xmlElementList.add(xmlElement);
}
return xmlElementList;
}
public LinkedList<Pair> getPairList(){
return pairList;
}
@Override
public void accept(Visitor visitor) {
if (visitor.visit(this)) {
for(Pair pair: this.pairList) {
pair.accept(visitor);
}
}
visitor.endVisit(this);
}
@Override
public String toString(){
ToStringVisitor toStringVisitor = new ToStringVisitor();
this.accept(toStringVisitor);
return toStringVisitor.toString();
}
}