Examples of javax.xml.bind.JAXBContext

javax.xml.bind.JAXBContext
The JAXBContext provides the JAXB users anchor to the implmentation and hos generated classes. A JAXBContext is used to obtain instances of {@link javax.xml.bind.Marshaller}, {@link javax.xml.bind.Unmarshaller}, and {@link javax.xml.bind.Validator}. To obtain a JAXBContext, the application invokes
```
 JAXBContext context = JAXBContext.newInstance("com.mycompany:com.mycompany.xml"); 
```
The list of colon separated package names matches the list in the schemas used to generate classes. In other words: If you have a schema using package name "com.mycompany.xml", then this package name has to be part of the list.

The JAXBContext class will scan the given list of packages for a file called jaxb.properties. This file contains the name of an instantiation class in the property {@link #JAXB_CONTEXT_FACTORY}. (See {@link #newInstance(String)} fordetails on how the class name is obtained.) Once such a file is found, the given class is loaded via {@link ClassLoader#loadClass(java.lang.String)}. The JAXBContext class demands, that the created object has a method
```
 public static JAXBContext createContext(String pPath, ClassLoader pClassLoader) throws JAXBException; 
```
This method is invoked with the same path and {@link ClassLoader} thanabove. See {@link #newInstance(String,ClassLoader)}} for details on the choice of the {@link ClassLoader}.

The created context will scan the same package path for implementation specific configuration details (in the case of the JaxMe application a file called Configuration.xml in any of the packages) and do whatever else is required to initialize the runtime. In particular it will invoke {@link DatatypeConverter#setDatatypeConverter(DatatypeConverterInterface)}.
@author JSR-31 @since JAXB1.0 @see Marshaller @see Unmarshaller @see Validator

        assertNotNull(wsdl);


        SOAPService service = new SOAPService(wsdl, serviceName);
        assertNotNull(service);
        
        JAXBContext jc = JAXBContext.newInstance("org.objectweb.hello_world_soap_http.types");  
        Dispatch<Object> disp = service.createDispatch(portName, jc, Service.Mode.PAYLOAD);
        
        String expected = "Hello Jeeves";   
        GreetMe greetMe = new GreetMe();
        greetMe.setRequestType("Jeeves");

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                                    ? env.getHeader()
                                    : env.addHeader();
                discardMAPs(header);
                header.addNamespaceDeclaration(Names.WSA_NAMESPACE_PREFIX,
                                               maps.getNamespaceURI());
                JAXBContext jaxbContext = 
                    VersionTransformer.getExposedJAXBContext(
                                                     maps.getNamespaceURI());
                Marshaller marshaller = jaxbContext.createMarshaller();
                marshaller.setProperty(Marshaller.JAXB_FRAGMENT, Boolean.TRUE);
                transformer.encodeAsExposed(maps.getNamespaceURI(),
                                            maps.getMessageID(), 
                                            Names.WSA_MESSAGEID_NAME,
                                            AttributedURIType.class,

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                    SOAPHeaderElement headerElement = 
                        (SOAPHeaderElement)headerElements.next();
                    Name headerName = headerElement.getElementName();
                    String headerURI = headerName.getURI();
                    if (unmarshaller == null) {
                        JAXBContext jaxbContext = 
                            VersionTransformer.getExposedJAXBContext(headerURI);
                        unmarshaller = 
                            jaxbContext.createUnmarshaller();
                    }
                    if (transformer.isSupported(headerURI)) {
                        if (maps == null) {
                            maps = new AddressingPropertiesImpl();
                            maps.exposeAs(headerURI);

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                InputSource inputSource = new InputSource(getSOAPBodyStream(doc));
                obj = new SAXSource(inputSource);
            } else if (StreamSource.class.isAssignableFrom(callback.getSupportedFormats()[0])) {     
                obj = new StreamSource(getSOAPBodyStream(doc));
            } else if (Object.class.isAssignableFrom(callback.getSupportedFormats()[0])) {           
                JAXBContext context = callback.getJAXBContext();
                Unmarshaller u = context.createUnmarshaller();
                return u.unmarshal(doc);                    
            }
        } catch (Exception se) {
            se.printStackTrace();
        }

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    public void testGetHeaders() throws Exception {
        SOAPMessageContext smc = new SOAPMessageContextImpl(new GenericMessageContext());
        assertNotNull(smc);


        JAXBContext jaxbContext = JAXBContext.newInstance(TestHeader1.class.getPackage().getName());
        //Test 1 No Headers in SOAP Message
        setSOAPMessage(smc, "resources/TestIntDocLitTypeTestReq.xml");
        Object[] obj1 = smc.getHeaders(null, jaxbContext, true);
        
        assertEquals(0, obj1.length);

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                StreamSource streamSource = (StreamSource)obj;
                Document doc = getDocBuilder().parse(streamSource.getInputStream());
                dest.addDocument(doc); 
            } else if (Object.class.isAssignableFrom(obj.getClass())) {
                
                JAXBContext context = callback.getJAXBContext();
                
                Marshaller u = context.createMarshaller();
                u.setProperty(Marshaller.JAXB_ENCODING , "UTF-8");
                u.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
                u.setProperty(Marshaller.JAXB_FRAGMENT, Boolean.TRUE);  
                
                DOMResult domResult = new DOMResult();

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    private JAXBEncoderDecoder() {        
    }
    
    public static JAXBContext createJAXBContextForClass(Class cls) throws JAXBException {
        JAXBContext context = contextMap.get(cls);
        if (context == null) {
            Set<Class> classes = new HashSet<Class>();
            getClassesForContext(cls, classes, cls.getClassLoader());
            classes.add(AttributedQNameType.class);
            classes.add(ServiceNameType.class);

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        throw new IllegalArgumentException("Cannot get Class object from unknown Type");
    }
    
    public static String toString(Object obj) throws JAXBException {
        String name = obj.getClass().getPackage().getName();
        JAXBContext context = JAXBContext.newInstance(name);
        JAXBElement<Object> el = new JAXBElement<Object>(new QName("test"), Object.class, obj);
        Marshaller m = context.createMarshaller();
        StringWriter writer = new StringWriter();
        m.marshal(el, writer);


        return writer.toString();       
    }

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    private RMAssertionType getRMAssertion(Element policyElement) {
        RMAssertionType rma = null;
        NodeList nl = policyElement.getElementsByTagNameNS(RMUtils.getRMConstants().getRMPolicyNamespaceURI(),
                                                           "RMAssertion");
        if (nl.getLength() > 0) {
            JAXBContext context = null;
            String packageName = RMUtils.getWSRMPolicyFactory().getClass().getPackage().getName();
            try {
                context = JAXBContext.newInstance(packageName, getClass().getClassLoader());
                Unmarshaller u = context.createUnmarshaller();
                Object obj = u.unmarshal(nl.item(0));
                if (obj instanceof JAXBElement<?>) {
                    JAXBElement<?> el = (JAXBElement<?>)obj;
                    obj = el.getValue();
                }

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                //
                LogicalMessage msg = messageContext.getMessage();


                // check the payload, if its an AddNumbers request, we'll intervene
                //
                JAXBContext jaxbContext = JAXBContext.newInstance(AddNumbers.class); 
                Object payload = msg.getPayload(jaxbContext); 
                
                if (payload instanceof AddNumbers) { 
                    AddNumbers req = (AddNumbers)payload;

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