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From "Martin Gainty" <mgai...@hotmail.com>
Subject Re: Question on getFirstChildWithName(qName) within an iterator?
Date Thu, 03 May 2007 12:55:13 GMT
Craig-

you may have a constraint on your WSDL for maxOccurs ="1" for the element 
you are anticipating
will be a list
Please post the wsdl to verify

Martin--
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----- Original Message ----- 
From: "Hickman, Craig" <Craig_Hickman@ADP.com>
To: <axis-user@ws.apache.org>
Sent: Tuesday, May 01, 2007 7:49 PM
Subject: Question on getFirstChildWithName(qName) within an iterator?


>
> Working for a company that wants to hide much of the complexity of the 
> Axis2
> api.
>
> I've been building some helper methods to allow the ability to use a set 
> of
> beans to manipulate and bind the xml to the POJO's without the need for
> using the code generation tools, which is something the developers at this
> company wish to refrain from using if possible.
>
> So here is my problem:
>
> I get the root element and then
>
>        //GET THE FIRST ELEMENT
>        OMElement root = utils.getOMRootElement(envelope);
>        // SET THE PARTNER SERVICE OBJECTS
>        QName serviceQN = new QName(WSConstants.SERVICE_ELEMENT);
>        Iterator serviceIter =  root.getChildrenWithName(serviceQN);
>        getService(serviceIter);
>
>  //-- private method --//
>   private void getService(Iterator serv) {
> Map aMap = new HashMap();
>
> //-- pass in iterator and constants for simple xml element
> parsing --//
> try {
> aMap = utils.getSimpleOMSubElement(serv,
> this.getServiceConstants()); // the utility method as seen below
> int mapsize = aMap.size();
>
> Iterator keyValuePairs1 =
> aMap.entrySet().iterator();
> for (int i = 0; i < mapsize; i++)
> {
>   Map.Entry entry = (Map.Entry)
> keyValuePairs1.next();
>   Object key = entry.getKey();
>   Object value = entry.getValue();
>   logger.debug("<<<<<<<<< map values >>>>>>>>
"
> +value.toString());
>   getServiceElementsSwitch(key, value);
> }
> } catch (SOAPException e) {
> logger.debug("getService SOAPException"
> +e.getMessage());
> e.printStackTrace();
> } catch (XMLStreamException e) {
> logger.debug("getService XMLStreamException"
> +e.getMessage());
> e.printStackTrace();
> }
> }
>
> I pass in a list of the binded elements as strings in a list so that I can
> iterate through them and then use the getChildWithNames iterator.
> My only problem is that I can only get the first element text value even
> though I loop through the list and pass I a new qName each time.
> I have even tried another helper to get the text value taking in the
> iterator and and the string value for the qName, but this still brings 
> back
> only one of the text values.
>
> Am I missing something? I've logged it to make sure I'm iterating with the
> correct elements for the binding, and have run test to make sure the 
> payload
> of text value is correct.
>
>
>       /**
>         * Walk the xml tree of elements
>         * get the simple element and put
>         * in map object for return.
>         *
>         * @param serv
>         * @throws XMLStreamException
>         * @throws SOAPException
>         * @return Map map
>         */
>        public Map getSimpleOMSubElement(Iterator iter, List wsConstants)
> throws SOAPException, XMLStreamException {
>                int j = 1;
>                String qName = "";
>                String text = "";
>
>                        for (j = 0; j < wsConstants.size(); j++) {
>                                qName = (String)wsConstants.get(j);
>                                logger.debug("qName = " +qName);
>                                while (iter.hasNext()) {
>                                    Object o = iter.next();
>
>                                    if  (o instanceof OMElement) {
>                                            OMElement c = (OMElement) o;
>                                            OMElement element =
> getOMElement(c, qName); // helpe method - takes element and constant 
> string
>                                            text = element.getText();
>                                    }
>
>                                        j++;
>                                logger.debug("text = " + j + "" +text);
>                                map.put(j, text);
>                        }
>                }
>                return map;
>        }
>
>        /**
>          * Helper method to get the text elements in a type safe fashion
>          *
>         * @param element
>         * @param name
>         * @return
>         */
>       public  OMElement getOMElement(OMElement result, String element)
>            throws SOAPException, XMLStreamException {
>
>            QName qName = new QName(element);
>            if (qName == null) {
>              throw new RuntimeException("Missing required method
> element.");
>            }
>
>            Iterator i = result.getChildrenWithName(qName);
>            if (! i.hasNext()) {
>              throw new RuntimeException("Missing required  element.");
>            }
>
>            OMElement omElement = (OMElement) i.next();
>
>            return omElement;
>          }
>
> As you see in the logs I can only get the first text value of the seven
> entries, and the others do have text in them just unable to get it with 
> the
> helper:
>
> 2007-05-01 17:41:19,967 [ApplicationServerThread-0] DEBUG utils.XMLUtils
> getSimpleOMSubElement.99 - qName = partner-num
> 2007-05-01 17:41:19,967 [ApplicationServerThread-0] DEBUG utils.XMLUtils
> getSimpleOMSubElement.110 - text = 100250
> 2007-05-01 17:41:19,967 [ApplicationServerThread-0] DEBUG utils.XMLUtils
> getSimpleOMSubElement.99 - qName = auth-code
> 2007-05-01 17:41:19,967 [ApplicationServerThread-0] DEBUG utils.XMLUtils
> getSimpleOMSubElement.99 - qName = client-user
> 2007-05-01 17:41:19,967 [ApplicationServerThread-0] DEBUG utils.XMLUtils
> getSimpleOMSubElement.99 - qName = client-id2
> 2007-05-01 17:41:19,967 [ApplicationServerThread-0] DEBUG utils.XMLUtils
> getSimpleOMSubElement.99 - qName = browser-form-post
> 2007-05-01 17:41:19,967 [ApplicationServerThread-0] DEBUG utils.XMLUtils
> getSimpleOMSubElement.99 - qName = operation
> 2007-05-01 17:41:19,967 [ApplicationServerThread-0] DEBUG utils.XMLUtils
> getSimpleOMSubElement.99 - qName = client-id3
> 2007-05-01 17:41:19,967 [ApplicationServerThread-0] DEBUG sso.SSOSkeleton
> getService.142 - <<<<<<<<< map values >>>>>>>>
100250
>
> I built it originally using the straight ahead manner of waliking the
> elements, so why does it work below but above I cannot use the same idea
> with a helper method using iteration?
>
> while (service.hasNext()) {
>                        Object o = service.next();
>                        OMElement s = (OMElement) o;
>
>                        //----  test all data ----//
>                        logger.debug("<<<<<  START OF SERVICE DATA >>>>>

> ");
>
>                        //--- use helper class for test ---//
>                        //-- Test partner-num -- //
>                                OMElement partnerData =
> s.getFirstChildWithName(new QName(WSConstants.PARTNER_NUM));
>                                logger.debug("<<<< Partner Data >>>
"
> +partnerData.getText());
>                                assertEquals("wKsd898!iu",
> partnerData.getText());
>
>                                // -- client-id --//
>                                OMElement clientId =
> s.getFirstChildWithName(new QName(WSConstants.CLIENT_ID));
>                                logger.debug("<<<< client-id >>>
"
> +clientId.getText());
>                                assertEquals("146", clientId.getText());
>
>                                // -- auth-code --//
>                                OMElement authCode =
> s.getFirstChildWithName(new QName(WSConstants.AUTH_CODE));
>                                logger.debug("<<<< auth-code >>>
"
> +authCode.getText());
>                                assertEquals("Ad897!df",
> authCode.getText());
>
>                                 // -- client-user --//
>                                OMElement clientUser =
> s.getFirstChildWithName(new QName(WSConstants.CLIENT_USER));
>                                logger.debug("<<<< client-user >>>
"
> +clientUser.getText());
>                                assertEquals("1", clientUser.getText());
>
>                                 // -- client-id2 --//
>                                OMElement clientId2 =
> s.getFirstChildWithName(new QName(WSConstants.CLIENT_ID_2));
>                                logger.debug("<<<< client-id2 >>>
"
> +clientId2.getText());
>                                assertEquals("2", clientId2.getText());
>
>                                 // -- browser-form-post --//
>                                OMElement browserFormPost =
> s.getFirstChildWithName(new QName(WSConstants.BROWSER_FORM_POST));
>                                logger.debug("<<<< browser-form-post >>>
"
> +browserFormPost.getText());
>                                assertEquals("text data ",
> browserFormPost.getText());
>
>                                 // -- operation  --//
>                                OMElement operation =
> s.getFirstChildWithName(new QName(WSConstants.OPERATION));
>                                logger.debug("<<<< operation >>>
"
> +operation.getText());
>                                assertEquals("create", 
> operation.getText());
>
>                                 // -- client-id3 --//
>                                OMElement clientId3 =
> s.getFirstChildWithName(new QName(WSConstants.CLIENT_ID_3));
>                                logger.debug("<<<< client-id3 >>>
"
> +clientId3.getText());
>                                assertEquals("12345", clientId3.getText());
>
>                                logger.debug("<<<<<  END OF SERVICE DATA
>>>>>> ");
>
>
>
>
>
>
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