/*
* 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.axiom.om.ds;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.io.Writer;
import java.nio.charset.Charset;
import javax.activation.DataSource;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.apache.axiom.om.OMDataSourceExt;
import org.apache.axiom.om.OMOutputFormat;
import org.apache.axiom.om.impl.MTOMXMLStreamWriter;
import org.apache.axiom.om.impl.serialize.StreamingOMSerializer;
import org.apache.axiom.om.util.StAXUtils;
import org.apache.axiom.util.stax.WrappedTextNodeStreamReader;
/**
* {@link org.apache.axiom.om.OMDataSource} implementation that represents a text node wrapped
* inside an element. The text data is provided by a {@link DataSource} object.
*/
public class WrappedTextNodeOMDataSourceFromDataSource extends OMDataSourceExtBase {
private final QName wrapperElementName;
private final DataSource binaryData;
private final Charset charset;
public WrappedTextNodeOMDataSourceFromDataSource(QName wrapperElementName, DataSource binaryData,
Charset charset) {
this.wrapperElementName = wrapperElementName;
this.binaryData = binaryData;
this.charset = charset;
}
public void serialize(OutputStream out, OMOutputFormat format) throws XMLStreamException {
XMLStreamWriter writer = new MTOMXMLStreamWriter(out, format);
serialize(writer);
writer.flush();
}
public void serialize(Writer writer, OMOutputFormat format) throws XMLStreamException {
MTOMXMLStreamWriter xmlWriter =
new MTOMXMLStreamWriter(StAXUtils.createXMLStreamWriter(writer));
xmlWriter.setOutputFormat(format);
serialize(xmlWriter);
xmlWriter.flush();
}
public void serialize(XMLStreamWriter xmlWriter) throws XMLStreamException {
StreamingOMSerializer serializer = new StreamingOMSerializer();
serializer.serialize(getReader(), xmlWriter);
}
public XMLStreamReader getReader() throws XMLStreamException {
InputStream is;
try {
is = binaryData.getInputStream();
}
catch (IOException ex) {
throw new XMLStreamException(ex);
}
return new WrappedTextNodeStreamReader(wrapperElementName, new InputStreamReader(is, charset));
}
public Object getObject() {
return binaryData;
}
public boolean isDestructiveRead() {
return false;
}
public boolean isDestructiveWrite() {
return false;
}
public byte[] getXMLBytes(String encoding) throws UnsupportedEncodingException {
throw new UnsupportedOperationException();
}
public void close() {
}
public OMDataSourceExt copy() {
return new WrappedTextNodeOMDataSourceFromDataSource(wrapperElementName, binaryData, charset);
}
}