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org.apache.cxf.staxutils.transform.TransformUtils Maven / Gradle / Ivy
/**
* 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.
*/
package org.apache.cxf.staxutils.transform;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.xml.XMLConstants;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.apache.cxf.helpers.XMLUtils;
import org.apache.cxf.staxutils.StaxUtils;
public final class TransformUtils {
private TransformUtils() {
}
public static XMLStreamReader createNewReaderIfNeeded(XMLStreamReader reader, InputStream is) {
return reader == null ? StaxUtils.createXMLStreamReader(is) : reader;
}
public static XMLStreamWriter createNewWriterIfNeeded(XMLStreamWriter writer, OutputStream os) {
return writer == null ? StaxUtils.createXMLStreamWriter(os) : writer;
}
public static XMLStreamWriter createTransformWriterIfNeeded(XMLStreamWriter writer,
OutputStream os,
Map outElementsMap,
List outDropElements,
Map outAppendMap,
boolean attributesToElements,
String defaultNamespace) {
if (outElementsMap != null || outDropElements != null
|| outAppendMap != null || attributesToElements) {
writer = createNewWriterIfNeeded(writer, os);
writer = new OutTransformWriter(writer, outElementsMap, outAppendMap,
outDropElements, attributesToElements, defaultNamespace);
}
return writer;
}
public static XMLStreamReader createTransformReaderIfNeeded(XMLStreamReader reader,
InputStream is,
List inDropElements,
Map inElementsMap,
Map inAppendMap,
boolean blockOriginalReader) {
return createTransformReaderIfNeeded(reader, is,
inDropElements, inElementsMap, inAppendMap, null, blockOriginalReader);
}
public static XMLStreamReader createTransformReaderIfNeeded(XMLStreamReader reader,
InputStream is,
List inDropElements,
Map inElementsMap,
Map inAppendMap,
Map inAttributesMap,
boolean blockOriginalReader) {
if (inElementsMap != null || inAppendMap != null || inDropElements != null
|| inAttributesMap != null) {
reader = new InTransformReader(createNewReaderIfNeeded(reader, is),
inElementsMap, inAppendMap, inDropElements,
inAttributesMap, blockOriginalReader);
}
return reader;
}
protected static void convertToQNamesMap(Map map,
QNamesMap elementsMap,
Map nsMap) {
if (map != null) {
for (Map.Entry entry : map.entrySet()) {
QName lname = XMLUtils.convertStringToQName(entry.getKey());
QName rname = XMLUtils.convertStringToQName(entry.getValue());
elementsMap.put(lname, rname);
if (nsMap != null && !isEmptyQName(rname)
&& ("*".equals(lname.getLocalPart()) && "*".equals(rname.getLocalPart()))) {
nsMap.put(lname.getNamespaceURI(), rname.getNamespaceURI());
}
}
}
}
/*
* @deprecated
*/
protected static void convertToMapOfQNames(Map map,
Map elementsMap) {
if (map != null) {
for (Map.Entry entry : map.entrySet()) {
QName lname = XMLUtils.convertStringToQName(entry.getKey());
QName rname = XMLUtils.convertStringToQName(entry.getValue());
elementsMap.put(lname, rname);
}
}
}
static void convertToMapOfElementProperties(Map map,
Map elementsMap) {
if (map != null) {
for (Map.Entry entry : map.entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
String text = null;
boolean child = false;
// if the content delimiter is present in the value, extract the content
int d = value.indexOf('}');
d = value.indexOf('=', d < 0 ? 0 : d);
if (d > 0) {
text = value.substring(d + 1);
value = value.substring(0, d);
}
// if the trailer delimiter is present in the key, remove it
if (key.endsWith("/")) {
key = key.substring(0, key.length() - 1);
child = true;
}
QName lname = XMLUtils.convertStringToQName(key);
QName rname = XMLUtils.convertStringToQName(value);
ElementProperty desc = new ElementProperty(rname, text, child);
elementsMap.put(lname, desc);
}
}
}
protected static void convertToSetOfQNames(List set,
Set elementsSet) {
if (set != null) {
for (String entry : set) {
QName name = XMLUtils.convertStringToQName(entry);
elementsSet.add(name);
}
}
}
static boolean isEmptyQName(QName qname) {
return XMLConstants.NULL_NS_URI.equals(qname.getNamespaceURI()) && "".equals(qname.getLocalPart());
}
static ParsingEvent createStartElementEvent(QName name) {
return new ParsingEvent(XMLStreamConstants.START_ELEMENT, name, null);
}
static ParsingEvent createEndElementEvent(QName name) {
return new ParsingEvent(XMLStreamConstants.END_ELEMENT, name, null);
}
static ParsingEvent createCharactersEvent(String value) {
return new ParsingEvent(XMLStreamConstants.CHARACTERS, null, value);
}
}
