/*
* Copyright 2004,2005 The Apache Software Foundation.
*
* 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.
*/
package org.apache.axis2.om.impl.llom.traverse;
import org.apache.axis2.om.OMAttribute;
import org.apache.axis2.om.OMElement;
import org.apache.axis2.om.OMNode;
import javax.xml.namespace.QName;
/**
* Class OMChildrenWithSpecificAttributeIterator
*/
public class OMChildrenWithSpecificAttributeIterator
extends OMChildrenIterator {
/**
* Field attributeName
*/
private QName attributeName;
/**
* Field attributeValue
*/
private String attributeValue;
/**
* Field detach
*/
private boolean detach;
/**
* Constructor OMChildrenWithSpecificAttributeIterator
*
* @param currentChild
* @param attributeName
* @param attributeValue
* @param detach
*/
public OMChildrenWithSpecificAttributeIterator(OMNode currentChild,
QName attributeName,
String attributeValue,
boolean detach) {
super(currentChild);
this.attributeName = attributeName;
this.attributeValue = attributeValue;
this.detach = detach;
}
/**
* Method hasNext
*
* @return
*/
public boolean hasNext() {
// First check whether we have a child, using the super class
if (currentChild == null) {
return false;
}
boolean isMatchingNodeFound = false;
boolean needToMoveForward = true;
// now we have a child to check. If its an OMElement and matches the criteria, then we are done
while (needToMoveForward) {
// check the current node for the criteria
if (currentChild instanceof OMElement) {
OMAttribute attr =
((OMElement) currentChild).getFirstAttribute(
attributeName);
if ((attr != null)
&& attr.getValue().equalsIgnoreCase(attributeValue)) {
isMatchingNodeFound = true;
needToMoveForward = false;
} else {
currentChild = currentChild.getNextSibling();
needToMoveForward = !(currentChild == null);
}
} else {
// get the next named node
currentChild = currentChild.getNextSibling();
needToMoveForward = !(currentChild == null);
}
}
return isMatchingNodeFound;
}
/**
* Method next
*
* @return
*/
public Object next() {
nextCalled = true;
removeCalled = false;
lastChild = currentChild;
currentChild = currentChild.getNextSibling();
if ((lastChild != null) && detach && lastChild.getParent() != null) {
lastChild.detach();
}
return lastChild;
}
}