/**
* 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.aegis.type.mtom;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import javax.xml.namespace.QName;
import org.apache.cxf.aegis.Context;
import org.apache.cxf.aegis.DatabindingException;
import org.apache.cxf.aegis.type.Type;
import org.apache.cxf.aegis.xml.MessageReader;
import org.apache.cxf.aegis.xml.MessageWriter;
import org.apache.cxf.message.Attachment;
/**
* @author <a href="mailto:dan@envoisolutions.com">Dan Diephouse</a>
*/
public abstract class AbstractXOPType extends Type {
public static final String XOP_NS = "http://www.w3.org/2004/08/xop/include";
public static final String XML_MIME_NS = "http://www.w3.org/2004/11/xmlmime";
public static final QName XOP_INCLUDE = new QName(XOP_NS, "Include");
public static final QName XOP_HREF = new QName("href");
public static final QName XML_MIME_TYPE = new QName(XML_MIME_NS, "mimeType");
public AbstractXOPType() {
}
@Override
public Object readObject(MessageReader reader, Context context) throws DatabindingException {
Object o = null;
while (reader.hasMoreElementReaders()) {
MessageReader child = reader.getNextElementReader();
if (child.getName().equals(XOP_INCLUDE)) {
MessageReader mimeReader = child.getAttributeReader(XOP_HREF);
String type = mimeReader.getValue();
o = readInclude(type, child, context);
}
child.readToEnd();
}
return o;
}
public Object readInclude(String type, MessageReader reader,
Context context) throws DatabindingException {
String href = reader.getAttributeReader(XOP_HREF).getValue();
Attachment att = AttachmentUtil.getAttachment(href, context.getAttachments());
if (att == null) {
throw new DatabindingException("Could not find the attachment " + href);
}
try {
return readAttachment(att, context);
} catch (IOException e) {
throw new DatabindingException("Could not read attachment", e);
}
}
protected abstract Object readAttachment(Attachment att, Context context) throws IOException;
@Override
public void writeObject(Object object, MessageWriter writer,
Context context) throws DatabindingException {
Collection<Attachment> attachments = context.getAttachments();
if (attachments == null) {
attachments = new ArrayList<Attachment>();
context.setAttachments(attachments);
}
String id = AttachmentUtil.createContentID(getSchemaType().getNamespaceURI());
Attachment att = createAttachment(object, id);
attachments.add(att);
String contentType = getContentType(object, context);
if (contentType != null) {
MessageWriter mt = writer.getAttributeWriter(XML_MIME_TYPE);
mt.writeValue(contentType);
}
MessageWriter include = writer.getElementWriter(XOP_INCLUDE);
MessageWriter href = include.getAttributeWriter(XOP_HREF);
href.writeValue("cid:" + id);
include.close();
}
protected abstract Attachment createAttachment(Object object, String id);
protected abstract String getContentType(Object object, Context context);
}