org.apache.xalan.xsltc.dom.DOMWSFilter Maven / Gradle / Ivy
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Tool to convert CSV and XLS to XML, to transform XML and to convert XML to CSV, HTML, other text files, PDF etc., useful as command line tool and integrated in other projects.
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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: DOMWSFilter.java 468651 2006-10-28 07:04:25Z minchau $
*/
package org.apache.xalan.xsltc.dom;
import org.apache.xalan.xsltc.DOM;
import org.apache.xalan.xsltc.DOMEnhancedForDTM;
import org.apache.xalan.xsltc.StripFilter;
import org.apache.xalan.xsltc.runtime.AbstractTranslet;
import org.apache.xalan.xsltc.runtime.Hashtable;
import org.apache.xml.dtm.DTM;
import org.apache.xml.dtm.DTMWSFilter;
/**
* A wrapper class that adapts the
* {@link org.apache.xml.dtm.DTMWSFilter DTMWSFilter} interface to the XSLTC
* DOM {@link org.apache.xalan.xsltc.StripFilter StripFilter} interface.
*/
public class DOMWSFilter implements DTMWSFilter {
private AbstractTranslet m_translet;
private StripFilter m_filter;
// The Hashtable for DTM to mapping array
private Hashtable m_mappings;
// Cache the DTM and mapping that are used last time
private DTM m_currentDTM;
private short[] m_currentMapping;
/**
* Construct an adapter connecting the DTMWSFilter
interface
* to the StripFilter
interface.
*
* @param translet A translet that also implements the StripFilter
* interface.
*
* @see org.apache.xml.dtm.DTMWSFilter
* @see org.apache.xalan.xsltc.StripFilter
*/
public DOMWSFilter(AbstractTranslet translet) {
m_translet = translet;
m_mappings = new Hashtable();
if (translet instanceof StripFilter) {
m_filter = (StripFilter) translet;
}
}
/**
* Test whether whitespace-only text nodes are visible in the logical
* view of DTM
. Normally, this function
* will be called by the implementation of DTM
;
* it is not normally called directly from
* user code.
*
* @param node int handle of the node.
* @param dtm the DTM that owns this node
* @return one of NOTSTRIP
, STRIP
or
* INHERIT
.
*/
public short getShouldStripSpace(int node, DTM dtm) {
if (m_filter != null && dtm instanceof DOM) {
DOM dom = (DOM)dtm;
int type = 0;
if (dtm instanceof DOMEnhancedForDTM) {
DOMEnhancedForDTM mappableDOM = (DOMEnhancedForDTM)dtm;
short[] mapping;
if (dtm == m_currentDTM) {
mapping = m_currentMapping;
}
else {
mapping = (short[])m_mappings.get(dtm);
if (mapping == null) {
mapping = mappableDOM.getMapping(
m_translet.getNamesArray(),
m_translet.getUrisArray(),
m_translet.getTypesArray());
m_mappings.put(dtm, mapping);
m_currentDTM = dtm;
m_currentMapping = mapping;
}
}
int expType = mappableDOM.getExpandedTypeID(node);
// %OPT% The mapping array does not have information about all the
// exptypes. However it does contain enough information about all names
// in the translet's namesArray. If the expType does not fall into the
// range of the mapping array, it means that the expType is not for one
// of the recognized names. In this case we can just set the type to -1.
if (expType >= 0 && expType < mapping.length)
type = mapping[expType];
else
type = -1;
}
else {
return INHERIT;
}
if (m_filter.stripSpace(dom, node, type)) {
return STRIP;
} else {
return NOTSTRIP;
}
} else {
return NOTSTRIP;
}
}
}