/*
* 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.axis2.databinding;
import org.apache.axiom.om.OMDataSource;
import org.apache.axiom.om.OMDataSourceExt;
import org.apache.axiom.om.OMException;
import org.apache.axiom.om.OMOutputFormat;
import org.apache.axiom.om.util.StAXUtils;
import org.apache.axis2.databinding.utils.writer.MTOMAwareOMBuilder;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.io.Writer;
import java.util.HashMap;
public class ADBDataSource implements OMDataSourceExt {
protected QName parentQName;
private ADBBean bean;
HashMap map = null; // Map of properties
/**
* Constructor taking in an ADBBean
*
* @param bean
*/
public ADBDataSource(ADBBean bean, QName parentQName) {
this.bean = bean;
this.parentQName = parentQName;
}
/**
* @param output
* @param format
* @throws XMLStreamException
* @see OMDataSource#serialize(java.io.OutputStream, org.apache.axiom.om.OMOutputFormat)
*/
public void serialize(OutputStream output, OMOutputFormat format) throws XMLStreamException {
XMLStreamWriter xmlStreamWriter = StAXUtils.createXMLStreamWriter(output);
serialize(xmlStreamWriter);
xmlStreamWriter.flush();
}
/**
* @param writer
* @param format
* @throws XMLStreamException
* @see OMDataSource#serialize(java.io.Writer, org.apache.axiom.om.OMOutputFormat)
*/
public void serialize(Writer writer, OMOutputFormat format) throws XMLStreamException {
XMLStreamWriter xmlStreamWriter = StAXUtils.createXMLStreamWriter(writer);
serialize(xmlStreamWriter);
xmlStreamWriter.flush();
}
/**
* This needs to be generated inside the ADB bean
*
* @param xmlWriter
* @throws XMLStreamException
* @see OMDataSource#serialize(javax.xml.stream.XMLStreamWriter)
*/
public void serialize(XMLStreamWriter xmlWriter) throws XMLStreamException{
bean.serialize(parentQName, xmlWriter);
xmlWriter.flush();
}
/**
* @throws XMLStreamException
* @see org.apache.axiom.om.OMDataSource#getReader()
*/
public XMLStreamReader getReader() throws XMLStreamException {
// since only ADBBeans related to elements can be serialized
// we are safe in passing null here.
MTOMAwareOMBuilder mtomAwareOMBuilder = new MTOMAwareOMBuilder();
serialize(mtomAwareOMBuilder);
return mtomAwareOMBuilder.getOMElement().getXMLStreamReader();
}
/**
* Returns the backing Object.
* @return Object
*/
public Object getObject() {
return bean;
}
/**
* Returns true if reading the backing object is destructive.
* An example of an object with a destructive read is an InputSteam.
* The owning OMSourcedElement uses this information to detemine if OM tree
* expansion is needed when reading the OMDataSourceExt.
* @return boolean
*/
public boolean isDestructiveRead() {
return false;
}
/**
* Returns true if writing the backing object is destructive.
* An example of an object with a destructive write is an InputStream.
* The owning OMSourcedElement uses this information to detemine if OM tree
* expansion is needed when writing the OMDataSourceExt.
* @return boolean
*/
public boolean isDestructiveWrite() {
return false;
}
/**
* Returns a InputStream representing the xml data
* @param encoding String encoding of InputStream
* @return InputStream
*/
public InputStream getXMLInputStream(String encoding) throws UnsupportedEncodingException {
return new ByteArrayInputStream(getXMLBytes(encoding));
}
/**
* Returns a byte[] representing the xml data
* @param encoding String encoding of InputStream
* @return byte[]
* @see getXMLInputStream
*/
public byte[] getXMLBytes(String encoding) throws UnsupportedEncodingException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
OMOutputFormat format = new OMOutputFormat();
format.setCharSetEncoding(encoding);
try {
serialize(baos, format);
} catch (XMLStreamException e) {
new OMException(e);
}
return baos.toByteArray();
}
/**
* Close the DataSource and free its resources.
*/
public void close() {
parentQName = null;
bean = null;
}
public OMDataSourceExt copy() {
return null;
}
public Object getProperty(String key) {
if (map == null) {
return null;
}
return map.get(key);
}
public Object setProperty(String key, Object value) {
if (map == null) {
map = new HashMap();
}
return map.put(key, value);
}
public boolean hasProperty(String key) {
if (map == null) {
return false;
}
return map.containsKey(key);
}
}