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org.apache.cxf.databinding.source.XMLStreamDataWriter 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.databinding.source;
import java.io.IOException;
import java.util.Collection;
import java.util.logging.Logger;
import javax.activation.DataSource;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import javax.xml.transform.Source;
import javax.xml.transform.dom.DOMSource;
import javax.xml.validation.Schema;
import javax.xml.validation.Validator;
import org.w3c.dom.Document;
import org.w3c.dom.DocumentFragment;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.apache.cxf.common.i18n.Message;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.databinding.DataWriter;
import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.message.Attachment;
import org.apache.cxf.service.model.MessagePartInfo;
import org.apache.cxf.staxutils.StaxUtils;
import org.apache.cxf.staxutils.W3CDOMStreamWriter;
public class XMLStreamDataWriter implements DataWriter {
private static final Logger LOG = LogUtils.getL7dLogger(XMLStreamDataWriter.class);
private Schema schema;
public XMLStreamDataWriter() {
}
public void write(Object obj, MessagePartInfo part, XMLStreamWriter output) {
write(obj, output);
}
public void write(Object obj, XMLStreamWriter writer) {
try {
if (obj instanceof DataSource) {
DataSource ds = (DataSource)obj;
if (schema != null) {
DOMSource domSource = new DOMSource(StaxUtils.read(ds.getInputStream()));
Validator schemaValidator = schema.newValidator();
schemaValidator.setErrorHandler(
new MtomValidationErrorHandler(schemaValidator.getErrorHandler(), domSource.getNode()));
schemaValidator.validate(domSource);
StaxUtils.copy(domSource, writer);
} else {
XMLStreamReader reader = StaxUtils.createXMLStreamReader(ds.getInputStream());
StaxUtils.copy(reader, writer);
reader.close();
}
} else if (obj instanceof Node) {
if (obj instanceof DocumentFragment) {
obj = org.apache.cxf.helpers.DOMUtils.getDomDocumentFragment((DocumentFragment)obj);
}
if (schema != null) {
Validator schemaValidator = schema.newValidator();
schemaValidator.setErrorHandler(
new MtomValidationErrorHandler(schemaValidator.getErrorHandler(), (Node)obj));
schemaValidator.validate(new DOMSource((Node)obj));
}
Node nd = (Node)obj;
writeNode(nd, writer);
} else {
Source s = (Source) obj;
if (schema != null) {
if (!(s instanceof DOMSource)) {
//make the source re-readable.
s = new DOMSource(StaxUtils.read(s));
}
Validator schemaValidator = schema.newValidator();
schemaValidator.setErrorHandler(
new MtomValidationErrorHandler(schemaValidator.getErrorHandler(), ((DOMSource)s).getNode()));
schemaValidator.validate(s);
}
if (s instanceof DOMSource
&& ((DOMSource) s).getNode() == null) {
return;
}
StaxUtils.copy(s, writer);
}
} catch (XMLStreamException e) {
throw new Fault("COULD_NOT_WRITE_XML_STREAM_CAUSED_BY", LOG, e,
e.getClass().getCanonicalName(), e.getMessage());
} catch (IOException e) {
throw new Fault(new Message("COULD_NOT_WRITE_XML_STREAM", LOG), e);
} catch (SAXException e) {
throw new Fault("COULD_NOT_WRITE_XML_STREAM_CAUSED_BY", LOG, e,
e.getClass().getCanonicalName(), e.getMessage());
}
}
private void writeNode(Node nd, XMLStreamWriter writer) throws XMLStreamException {
if (writer instanceof W3CDOMStreamWriter) {
W3CDOMStreamWriter dw = (W3CDOMStreamWriter)writer;
if (dw.getCurrentNode() != null) {
if (nd instanceof DocumentFragment
&& nd.getOwnerDocument() == dw.getCurrentNode().getOwnerDocument()) {
Node ch = nd.getFirstChild();
while (ch != null) {
nd.removeChild(ch);
dw.getCurrentNode().appendChild(org.apache.cxf.helpers.DOMUtils.getDomElement(ch));
ch = nd.getFirstChild();
}
} else if (nd.getOwnerDocument() == dw.getCurrentNode().getOwnerDocument()) {
dw.getCurrentNode().appendChild(nd);
return;
} else if (nd instanceof DocumentFragment) {
nd = dw.getDocument().importNode(nd, true);
dw.getCurrentNode().appendChild(nd);
return;
}
} else if (dw.getCurrentFragment() != null) {
if (nd.getOwnerDocument() == dw.getCurrentFragment().getOwnerDocument()) {
dw.getCurrentFragment().appendChild(nd);
return;
} else if (nd instanceof DocumentFragment) {
nd = dw.getDocument().importNode(nd, true);
dw.getCurrentFragment().appendChild(nd);
return;
}
}
}
if (nd instanceof Document) {
StaxUtils.writeDocument((Document)nd,
writer, false, true);
} else {
StaxUtils.writeNode(nd, writer, true);
}
}
public void setSchema(Schema s) {
this.schema = s;
}
public void setAttachments(Collection attachments) {
}
public void setProperty(String key, Object value) {
}
private static class MtomValidationErrorHandler implements ErrorHandler {
private ErrorHandler origErrorHandler;
private Node node;
MtomValidationErrorHandler(ErrorHandler origErrorHandler, Node node) {
this.origErrorHandler = origErrorHandler;
this.node = node;
}
@Override
public void warning(SAXParseException exception) throws SAXException {
if (this.origErrorHandler != null) {
this.origErrorHandler.warning(exception);
} else {
// do nothing
}
}
@Override
public void error(SAXParseException exception) throws SAXException {
if (this.isCVC312Exception(exception)) {
String elementName = this.getAttachmentElementName(exception);
if (node != null && this.findIncludeNode(node, elementName)) {
return;
}
}
if (this.origErrorHandler != null) {
this.origErrorHandler.error(exception);
} else {
throw exception;
}
}
@Override
public void fatalError(SAXParseException exception) throws SAXException {
if (this.origErrorHandler != null) {
this.origErrorHandler.fatalError(exception);
} else {
throw exception;
}
}
private boolean isCVC312Exception(SAXParseException exception) {
String msg = exception.getMessage();
return (msg.startsWith("cvc-type.3.1.2") || msg.startsWith("cvc-complex-type.2.2"))
&& msg.endsWith("is a simple type, so it must have no element information item [children].");
}
private String getAttachmentElementName(SAXParseException exception) {
String msg = exception.getMessage();
String[] str = msg.split("'");
return str[1];
}
private boolean findIncludeNode(Node checkNode, String mtomElement) {
boolean ret = false;
NodeList nList = checkNode.getChildNodes();
for (int i = 0; i < nList.getLength(); i++) {
Node nNode = nList.item(i);
if (nNode.getLocalName() != null
&& nNode.getLocalName().equals(mtomElement)) {
NodeList subNodeList = nNode.getChildNodes();
for (int j = 0; j < subNodeList.getLength(); j++) {
Node subNode = subNodeList.item(j);
if ("http://www.w3.org/2004/08/xop/include".equals(subNode.getNamespaceURI())
&& "Include".equals(subNode.getLocalName())) {
// This is the Mtom element which break the SchemaValidation so ignore this
return true;
}
}
} else {
ret = findIncludeNode(nNode, mtomElement);
}
}
return ret;
}
}
}