How to marshal List Source using JAXB and xjc?

Question

Hi all,
I'm having problems to marshal objects of xjc generated java classes to xml output. In detail I am facing problems to use a list of sources (List<javax.xml.transform.Source>) that's been generated.
The schema I am using is:
<xs:complexType name="tTestAttachment">
<xs:sequence>
<xs:element name="textXML" type="xs:base64Binary" xmime:expectedContentTypes="text/xml" maxOccurs="unbounded" minOccurs="0"/>
</xs:sequence>
</xs:complexType>
<xs:element name="TestAttachment" type="tTestAttachment" />
...By using xjc the java classes are generated without problems. The expectedContentTypes="text/xml" results the generation of a List<Source> parameter for the class.
public class TTestAttachment {
@XmlMimeType("text/xml")
protected List<Source> textXML;
...Now I want to test the generated classes and marshal an object I created by the following code
StreamSource ssrc = new StreamSource("file:D:/temp/test.xml");
attachment.getTextXML().add(ssrc);
attachment.getTextXML().add(ssrc);
ObjectFactory objFactory = new ObjectFactory();
JAXBContext jc = JAXBContext.newInstance(TTestAttachment.class);
Marshaller marshaller = jc.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT,Boolean.TRUE);
JAXBElement<TTestAttachment> jaxbelem = objFactory.createTestAttachment(attachment);
marshaller.marshal(jaxbelem, new PrintWriter(System.out));
...But as return I just receive an error message, that StreamSource is not known to the context:
javax.xml.bind.MarshalException
- with linked exception:
[javax.xml.bind.JAXBException: class javax.xml.transform.stream.StreamSource nor any of its super class is known to this context.]
...So now I made it known to the JAXBContext by adding it as parameter:
JAXBContext jc = JAXBContext.newInstance(TTestAttachment.class);With the result, that I get an output but not as expected with content of the source inline but with the link to it.
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ns2:TestAttachment xmlns:ns2="http://www.example.com/schema01">
<ns2:textXML xsi:type="streamSource" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<systemId>file:D:/temp/test.xml</systemId>
</ns2:textXML>
<ns2:textXML xsi:type="streamSource" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<systemId>file:D:/temp/test.xml</systemId>
</ns2:textXML>
</ns2:TestAttachment>A second idea was to leave the JAXBContext as it is and add the annotation @XmlList to the attribute of the generated java class. But that also does not lead to the expected result. It included the content of the source now but whitespace separated and not as single objects. The expected result should look some like this:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<TestAttachment xmlns="http://www.example.com/schema01">
<textXML>PD94...sbzwvbWVzc2FnZT4=</textXML>
<textXML>PD94...sbzwvbWVzc2FnZT4=</textXML>
</TestAttachment>By the way - when I'm using a single "text/xml" mime type element (maxOccurs="1") in the based schema everything works fine. xjc generates a single attribute of type javax.transform.Source and the marshalling works out the expected way.
Any suggestions on how to marshal the objects correctly?
- Thanks in advance

Answer 1

Hope this link help you -
http://chakkaradeep.com/index.php/autohosted-sharepoint-apps-deep-dive-part-2/
Also check this link, About Autohosted Apps Preview program
http://blogs.msdn.com/b/calvarro/archive/2014/05/20/about-autohosted-apps-preview-program.aspx
For production, it is recommended to convert Auto Hosted to Provider Hosted App, so better prepared for it now.
http://msdn.microsoft.com/EN-US/library/office/dn722449(v=office.15).aspx
Hope this helps!
Ram - SharePoint Architect
Blog - SharePointDeveloper.in
Please vote or mark your question answered, if my reply helps you