Xinjun Have you tried some of the databinding frameworks that Axis2 supports? Maybe JIBX or XMLBeans, or even ADB would suit you better. The DOM approach will be very slow indeed compared to using a STAX based binding framework.
The DOM over OM is in axiom-dom-**.jar. This is an implementation of DOM that uses Axiom underneath, and so can let you switch between them. Paul On 1/12/07, Xinjun Chen <[EMAIL PROTECTED]> wrote:
Hi Paul, Thank you for your reply. I am using Castor to create DOM Node, and then convert the DOM Node into OM. It seems that Castor does not support AXIOM. I choose Castor marshalling framework because I got the class files from my client and I am not supposed to modify the class files. And there are some java.util.Map and java.util.Vector inside the class file. It hits me that Castor marshalling framework may satisfy both requirements. Do I have other options which may satisfy these two requirements? Do you mean if I construct the OM directly I will have control on eliminating the null elements at node creation time? What do you mean there is a version of DOM that uses OM underneath? Thanks. Regards, Xinjun On 1/11/07, Paul Fremantle <[EMAIL PROTECTED]> wrote: > Xinjun > > How are you creating the DOM element? There might be some options to > use OM directly. Firstly, maybe you could just code to OM. Or if you > already have lots of DOM code then there is also a version of DOM that > uses OM underneath. > > Paul > > On 1/11/07, Xinjun Chen <[EMAIL PROTECTED]> wrote: > > Hi Ruchith, > > > > setNamespaceAware to the original DocumentBuilderFactory solve the problem > > partially. > > > > Now the DOM Element reads: > > <?xml version="1.0" > > encoding="UTF-8"?> > > <getHearingDetailsByCaseNoWSReturn xmlns="http://cis.com";> > > <hearingDetailsVO xmlns="http://vo.cis.com";> > > <duration/> > > <applicationNo>sAppNo0</applicationNo> > > </hearingDetailsVO> > > </getHearingDetailsByCaseNoWSReturn> > > > > But the OMElement reads: > > > > <getHearingDetailsByCaseNoWSReturn xmlns=""> > > <hearingDetailsVO xmlns="http://vo.cis.com";> > > <duration/> > > <applicationNo>sAppNo0</applicationNo> > > </hearingDetailsVO> > > </getHearingDetailsByCaseNoWSReturn> > > > > Observations: > > 1. After I setNamespaceAware to the original DOM DocumentBuilderFactory, the > > inner element <hearingDetailsVO> gets correct namespace. But root element > > <getHearingDetailsByCaseNoWSReturn> does not. The namespace > > of <getHearingDetailsByCaseNoWSReturn> is lost. I created > > this element in the following way: > > > > DocumentBuilderFactory dbf = > > DocumentBuilderFactory.newInstance(); > > dbf.setNamespaceAware(true); > > Document doc = dbf.newDocumentBuilder().newDocument(); > > Element root = doc.createElementNS(" http://cis.com";, > > "getHearingDetailsByCaseNoWSReturn"); > > > > I think OMElement does not include "http://cis.com"; as namespace because > > " http://cis.com"; is not explicitly declared as a namespace in DOM doc. I > > searched the interfaces of Document and Element, but cannot find a way to > > explicitly declare a namespace. > > I think I need to treat namespace as attribute in DOM. Please correct me if > > I am wrong. > > > > Thus I added one line to declare xmlns as attribute. > > > > root.setAttribute("xmlns", " http://cis.com";). > > > > Is there any other elegant way? > > > > > > 2. Do you have a good way to remove all null elements like <duration/>? The > > original DOM Element also contains other null elements which contains no > > value. > > > > > > > > Regards, > > Xinjun > > > > > > > > > > On 1/10/07, Ruchith Fernando <[EMAIL PROTECTED]> wrote: > > > Hi Xinjun, > > > > > > How did u create the DOM element that is to be converted to OM? If you > > > read it from a file you MUST make sure you the DocumentBuilderFactory > > > instance that you use to create the DocumentBuilder instance that > > > parses the xml is *namspaceAware*. > > > > > > Please see here[1] for an example. > > > > > > Thanks, > > > Ruchith > > > > > > [1] http://rafb.net/p/DDc2NH37.html > > > > > > > > > On 1/10/07, Xinjun Chen <[EMAIL PROTECTED]> wrote: > > > > Hi, > > > > > > > > I am trying to convert a DOM Element to OMElement using the following > > toOM > > > > code in org.apache.axis2.security.util.Axis2Util. > > > > > > > > public static OMElement toOM(Element element) throws Exception { > > > > try { > > > > org.apache.xml.security.Init.init(); > > > > ByteArrayOutputStream os = new ByteArrayOutputStream(); > > > > XMLUtils.outputDOM (element, os, true); > > > > > > > > ByteArrayInputStream is = new ByteArrayInputStream( os.toByteArray()); > > > > XMLStreamReader reader = > > > > XMLInputFactory.newInstance().createXMLStreamReader(is); > > > > > > > > StAXOMBuilder builder = new StAXOMBuilder(reader); > > > > builder.setCache(true); > > > > return builder.getDocumentElement(); > > > > } catch (XMLStreamException e) { > > > > log.fatal(e.getMessage (), e); > > > > throw new Exception("Error when converting from DOM Element to OM."); > > > > } > > > > > > > > There are two problems with the code: > > > > 1. I must add the bolded line in the toOM() method. > > > > 2. This method seems not deal with namespace correctly. > > > > > > > > My original DOM Element is as follows: > > > > <?xml version="1.0" > > > > encoding="UTF-8"?><getHearingDetailsByCaseNoWSReturn > > > > xmlns=" > > > > > > http://cis.com";><hearingDetailsVO><duration/><applicationNo>sAppNo0</applicationNo></hearingDetailsVO></getHearingDetailsByCaseNoWSReturn> > > > > > > > > But when I use the method to convert the DOM Element into OMElement, it > > > > reads: > > > > > > <getHearingDetailsByCaseNoWSReturn><hearingDetailsVO><duration > > > > > > /><applicationNo>sAppNo0</applicationNo></hearingDetailsVO></getHearingDetailsByCaseNoWSReturn> > > > > > > > > > > > > It seems that the namespace is ignored by the Axis2Util.toOM(). > > > > > > > > After I add the OMElement to a SOAPEnvelope using the following code, > > every > > > > element is qualified with "" namespace which is unexpected. > > > > > > > > SOAPFactory fac = OMAbstractFactory.getSOAP11Factory(); > > > > SOAPEnvelope envelope = fac.getDefaultEnvelope(); > > > > OMElement om = Axis2Util.toOM((Element)retNode); > > > > envelope.getBody().addChild(om); > > > > > > > > /******************************* > > > > Result SOAPEnvelope > > > > *******************************/ > > > > <?xml version=' 1.0' encoding='utf-8'?> > > > > <soapenv:Envelope > > > > xmlns:soapenv=" > > http://schemas.xmlsoap.org/soap/envelope/ "> > > > > <soapenv:Header /> > > > > <soapenv:Body> > > > > <getHearingDetailsByCaseNoWSReturn xmlns=""> > > > > <hearingDetailsVO xmlns=""> > > > > <duration xmlns="" /> > > > > <applicationNo xmlns="">sAppNo0</applicationNo> > > > > </hearingDetailsVO> > > > > </getHearingDetailsByCaseNoWSReturn> > > > > </soapenv:Body> > > > > </soapenv:Envelope> > > > > > > > > > > > > Could anyone tell me how can I solve the problems? > > > > > > > > > > > > Regards, > > > > Xinjun > > > > > > > > > -- > > > www.ruchith.org > > > www.wso2.org > > > > > > > > --------------------------------------------------------------------- > > > To unsubscribe, e-mail: > > [EMAIL PROTECTED] > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > > > -- > Paul Fremantle > VP/Technology, WSO2 and OASIS WS-RX TC Co-chair > > http://bloglines.com/blog/paulfremantle > [EMAIL PROTECTED] > > "Oxygenating the Web Service Platform", www.wso2.com > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
-- Paul Fremantle VP/Technology, WSO2 and OASIS WS-RX TC Co-chair http://bloglines.com/blog/paulfremantle [EMAIL PROTECTED] "Oxygenating the Web Service Platform", www.wso2.com --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
