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 org.w3c.dom.Document;
import org.w3c.dom.DocumentFragment;
import org.w3c.dom.Node;
import org.xml.sax.SAXException;
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 void write(Object obj, MessagePartInfo part, XMLStreamWriter output) {
write(obj, output);
}
public void write(Object obj, XMLStreamWriter writer) {
try {
XMLStreamReader reader = null;
if (obj instanceof DataSource) {
DataSource ds = (DataSource)obj;
if (schema != null) {
DOMSource domSource = new DOMSource(StaxUtils.read(ds.getInputStream()));
schema.newValidator().validate(domSource);
StaxUtils.copy(domSource, writer);
} else {
reader = StaxUtils.createXMLStreamReader(ds.getInputStream());
StaxUtils.copy(reader, writer);
reader.close();
}
} else if (obj instanceof Node) {
if (schema != null) {
schema.newValidator().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));
}
schema.newValidator().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(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) {
}
}