/*
* Copyright 2001-2004 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.
*/
/*
* $Id: SingleNodeCounter.java,v 1.5 2004/02/16 22:54:59 minchau Exp $
*/
package com.sun.org.apache.xalan.internal.xsltc.dom;
import com.sun.org.apache.xalan.internal.xsltc.DOM;
import com.sun.org.apache.xalan.internal.xsltc.Translet;
import com.sun.org.apache.xml.internal.dtm.DTMAxisIterator;
/**
* @author Jacek Ambroziak
* @author Santiago Pericas-Geertsen
*/
public abstract class SingleNodeCounter extends NodeCounter {
static private final int[] EmptyArray = new int[] { };
DTMAxisIterator _countSiblings = null;
public SingleNodeCounter(Translet translet,
DOM document,
DTMAxisIterator iterator) {
super(translet, document, iterator);
}
public NodeCounter setStartNode(int node) {
_node = node;
_nodeType = _document.getExpandedTypeID(node);
_countSiblings = _document.getAxisIterator(PRECEDINGSIBLING);
return this;
}
public String getCounter() {
int result;
if (_value != Integer.MIN_VALUE) {
result = _value;
}
else {
int next = _node;
result = 0;
if (!matchesCount(next)) {
while ((next = _document.getParent(next)) > END) {
if (matchesCount(next)) {
break; // found target
}
if (matchesFrom(next)) {
next = END;
break; // no target found
}
}
}
if (next != END) {
_countSiblings.setStartNode(next);
do {
if (matchesCount(next)) result++;
} while ((next = _countSiblings.next()) != END);
}
else {
// If no target found then pass the empty list
return formatNumbers(EmptyArray);
}
}
return formatNumbers(result);
}
public static NodeCounter getDefaultNodeCounter(Translet translet,
DOM document,
DTMAxisIterator iterator) {
return new DefaultSingleNodeCounter(translet, document, iterator);
}
static class DefaultSingleNodeCounter extends SingleNodeCounter {
public DefaultSingleNodeCounter(Translet translet,
DOM document, DTMAxisIterator iterator) {
super(translet, document, iterator);
}
public NodeCounter setStartNode(int node) {
_node = node;
_nodeType = _document.getExpandedTypeID(node);
_countSiblings =
_document.getTypedAxisIterator(PRECEDINGSIBLING,
_document.getExpandedTypeID(node));
return this;
}
public String getCounter() {
int result;
if (_value != Integer.MIN_VALUE) {
result = _value;
}
else {
int next;
result = 1;
_countSiblings.setStartNode(_node);
while ((next = _countSiblings.next()) != END) {
result++;
}
}
return formatNumbers(result);
}
}
}
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