Examples of org.apache.axiom.om.OMSourcedElement

org.apache.axiom.om.OMSourcedElement
An OMSourcedElement is an OMElement whose data is backed by an arbitrary java object. The backing java object is accessed via the OMDataSource (or OMDataSourceExt) interface. An OMSourcedElement can be in one of two states. Not Expanded: In this state the backing object is used to read and write the xml Expanded: In this state, the OMSourcedElement is backed by a normal OM tree. Here are the steps to place an arbitrary java object into the OM tree. 1) Write an OMDataSourceExt class that provides access to your java object. 2) Use OMFactory.createOMElement(OMDataSource, String, OMNamespace) to create the OMSourcedElement. 3) Attach the OMSourcedElement to your OMTree.

        }
        String testData = buffer.toString();
        QName qname = new QName("data");
        OMDataSource ds = new WrappedTextNodeOMDataSourceFromReader(qname, new StringReader(testData));
        OMFactory factory = metaFactory.getOMFactory();
        OMSourcedElement element = factory.createOMElement(ds, qname);
        assertEquals(testData, element.getText());
    }

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        super(metaFactory);
    }


    protected void runTest() throws Throwable {
        OMFactory factory = metaFactory.getOMFactory();
        OMSourcedElement element = factory.createOMElement(new CharArrayDataSource(
                "<element>content</element>".toCharArray()), new QName("element"));
        assertNull(element.getNamespace());
        // Expand the element
        element.getFirstOMChild();
        assertNull(element.getNamespace());
    }

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        super(metaFactory);
    }


    protected void runTest() throws Throwable {
        OMFactory factory = metaFactory.getOMFactory();
        OMSourcedElement element = factory.createOMElement(new ByteArrayDataSource(
                "<element attr='value'><a/></element>".getBytes("utf-8"), "utf-8"));
        element.removeChildren();
        // Check that the attribute has been added
        Iterator it = element.getAllAttributes();
        assertTrue(it.hasNext());
        OMAttribute attr = (OMAttribute)it.next();
        assertEquals("attr", attr.getLocalName());
        assertEquals("value", attr.getAttributeValue());
        assertFalse(it.hasNext());
        // Check that the element is empty
        assertNull(element.getFirstOMChild());
    }

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            OMDataSource ds = new JAXBDataSource(jaxb, jdsContext);
            if (log.isDebugEnabled()) {
                log.debug("The JAXBDataSource is " + ds);
            }
            OMSourcedElement omse = factory.createOMElement(ds, localPart, ns);
            
            parent.addChild(omse);
            JAXBCustomBuilderMonitor.updateTotalCreates();
            return omse;
        } catch (JAXBException e) {

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            OMNamespace ns = factory.createOMNamespace(namespace, reader.getPrefix());
            InputStream payload = ContextListenerUtils.createPayloadElement(parsedStream, ns, localPart, parent, 
                        nsElementDecls, attrElementDecls);


            ParserInputStreamDataSource ds = new ParserInputStreamDataSource(payload, encoding);
            OMSourcedElement om = null;
            if (parent instanceof SOAPHeader && factory instanceof SOAPFactory) {
                om = ((SOAPFactory)factory).createSOAPHeaderBlock(localPart, ns, ds);
            } else {
                om = factory.createOMElement(ds, localPart, ns);
            }

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                }
                return null;
            }
            OMNamespace ns = factory.createOMNamespace(namespace, reader.getPrefix());
            ParserInputStreamDataSource ds = new ParserInputStreamDataSource(payload, encoding);
            OMSourcedElement om = null;
            if (parent instanceof SOAPHeader && factory instanceof SOAPFactory) {
                om = ((SOAPFactory)factory).createSOAPHeaderBlock(localPart, ns, ds);
            } else {
                om = factory.createOMElement(ds, localPart, ns);
            }

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            SOAPFaultDetail detail = factory.createSOAPFaultDetail(soapFault);
            if (!ignoreDetailBlocks) {
                for (int i = 0; i < blocks.length; i++) {
                    // A Block implements OMDataSource.  So create OMSourcedElements
                    // for each of the Blocks.
                    OMSourcedElement element =
                            factory.createOMElement(blocks[i], blocks[i].getQName());
                    detail.addChild(element);
                }
            }
        }

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        if (targetDS == null) {
            copyOMElement(factory, targetParent, sourceOMSE);
            return;
        }
        // Otherwise create a target OMSE with the copied DataSource
        OMSourcedElement targetOMSE =
            factory.createOMElement(targetDS, 
                                    sourceOMSE.getLocalName(), 
                                    sourceOMSE.getNamespace());
        targetParent.addChild(targetOMSE);

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        // Make sure the Axiom structure is intact
        SOAPEnvelope env = axisMC.getEnvelope();
        SOAPBody body = env.getBody();
        OMElement child = body.getFirstElement();
        assertTrue(child instanceof OMSourcedElement);
        OMSourcedElement omse = (OMSourcedElement) child;
        assertTrue(!omse.isExpanded());
        OMDataSource ds = omse.getDataSource();
        assertTrue(ds instanceof JAXBBlockImpl);
        
        // Now simulate persisting the message
        File theFile = null;
        String theFilename = null;
        theFile = File.createTempFile("MessagePersistTest", null);
        //theFile.deleteOnExit();
        theFilename = theFile.getName();
        System.out.println("temp file = [" + theFilename + "]");
        
        // Setup an output stream to a physical file
        FileOutputStream outStream = new FileOutputStream(theFile);


        // Attach a stream capable of writing objects to the 
        // stream connected to the file
        ObjectOutputStream outObjStream = new ObjectOutputStream(outStream);


        // Try to save the message context
        System.out.println("saving message context.....");
        outObjStream.writeObject(axisMC);


        // Close out the streams
        outObjStream.flush();
        outObjStream.close();
        outStream.flush();
        outStream.close();
        System.out.println("....saved message context.....");
        long filesize = theFile.length();
        System.out.println("file size after save [" + filesize
                + "]   temp file = [" + theFilename + "]");
        
        // Make sure the Axiom structure is intact.  
        env = axisMC.getEnvelope();
        body = env.getBody();
        child = body.getFirstElement();
        assertTrue(child instanceof OMSourcedElement);
        omse = (OMSourcedElement) child;
        assertTrue(!omse.isExpanded());
        ds = omse.getDataSource();
        assertTrue(ds instanceof JAXBBlockImpl);
        
        // Simulate transport
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        env.serializeAndConsume(baos, new OMOutputFormat());

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        // Make sure the Axiom structure is intact
        SOAPEnvelope env = axisMC.getEnvelope();
        SOAPBody body = env.getBody();
        OMElement child = body.getFirstElement();
        assertTrue(child instanceof OMSourcedElement);
        OMSourcedElement omse = (OMSourcedElement) child;
        assertTrue(!omse.isExpanded());
        OMDataSource ds = omse.getDataSource();
        assertTrue(ds instanceof JAXBBlockImpl);
        
        // Now simulate persisting the message in memory
        SOAPEnvelope env2 = CopyUtils.copy(env);
        
        // Make sure the Axiom structure is intact.  
        env = axisMC.getEnvelope();
        body = env.getBody();
        child = body.getFirstElement();
        assertTrue(child instanceof OMSourcedElement);
        omse = (OMSourcedElement) child;
        assertTrue(!omse.isExpanded());
        ds = omse.getDataSource();
        assertTrue(ds instanceof JAXBBlockImpl);
        
        // Simulate transport
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        env.serializeAndConsume(baos, new OMOutputFormat());


        // To check that the output is correct, get the String contents of the
        // reader
        String newText = baos.toString();
        System.out.println(newText);
        assertTrue(newText.contains(sampleJAXBText));
        assertTrue(newText.contains("soap"));
        assertTrue(newText.contains("Envelope"));
        assertTrue(newText.contains("Body"));
        
        
        // Now check the copied envelope
        body = env2.getBody();
        child = body.getFirstElement();
        assertTrue(child instanceof OMSourcedElement);
        omse = (OMSourcedElement) child;
        assertTrue(!omse.isExpanded());
        ds = omse.getDataSource();
        assertTrue(ds instanceof JAXBDataSource);
        
        // Simulate transport
        baos = new ByteArrayOutputStream();
        env2.serializeAndConsume(baos, new OMOutputFormat());

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Related Classes of org.apache.axiom.om.OMSourcedElement

org.apache.axiom.om.ds.jaxb.JAXBOMDataSourceTest

org.apache.axiom.om.ds.WrappedTextNodeOMDataSourceTest

org.apache.axiom.om.impl.builder.CustomBuilderTest

org.apache.axiom.om.impl.common.serializer.pull.Navigator

org.apache.axiom.om.impl.llom.OMStAXWrapperTest

org.apache.axiom.om.impl.serializer.OMSerializerTest

org.apache.axiom.om.util.CopyUtils

org.apache.axiom.om.util.CopyUtilsTest

org.apache.axiom.om.util.ElementHelperTest

org.apache.axiom.test.JAXBTest

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