Now that is quite a dance! [whew...] Bill Untitled Page
------------------------------------------------------------------------ ----- Original Message ----- *From:* peter.che...@firstmac.com.au *To:* U2 Users List <u2-users@listserver.u2ug.org> *Date:* 11/5/2013 6:00 PM *Subject:* [U2] UV Basic parsing xml with XDOM commands
Hi Everyone, Thought I'd post a solution to a task I've been working on in the hope it will assist someone else with similar requirements. Thanks also to those who've previously posted on this as I found the following to be most helpful as well: http://www.mail-archive.com/u2-users@listserver.u2ug.org/msg18895.html https://gdoesu2.wordpress.com/tag/xdomlocate/ http://listserver.u2ug.org/pipermail/u2-users/2010-September/004713.html http://www.mvdeveloper.com/kb/docs/kb10.pdf I had to parse some xml returned via a soap request to an IIS server: <?xml version="1.0"?> <s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/";> <s:Body> <SuggestResponse xmlns="http://tempuri.org/";> <SuggestResult xmlns:a="http://schemas.datacontract.org/2004/07/FirstMac.Services.Category.Contracts"; xmlns:i="http://www.w3.org/2001/XMLSchema-instance";> <a:CategoryGroup>Some group data</a:CategoryGroup> <a:CategoryName>Some name data</a:CategoryName> </SuggestResult> </SuggestResponse> </s:Body> </s:Envelope> There are only ever 2 value nodes returned if the soap query is successful with the SuggestResult node containing 'i:nil="true"' if the query is not successful. e.g. <SuggestResult i:nil="true" ... /> The xml contains a default namespace and after much searching and trial and error I discovered I needed to use the following xpathString and nsMAP parameters in the XDOMLocate function: Notes re the XDOMLocate function. I found the UV11.1 Basic Commands Reference and Basic Extensions documents for XDOMLocate to be scarce on detail for the following: * Each additional namespace in the string must also be space delimited. * The double quotes enclosing the http url must be removed for each namespace defined in the nsMAP parameter. The description given has double quotes in the wrong places. e.g. if you have <s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/";> then the namespace you need to specify is nsMAP = 'xmlns:s=http://schemas.xmlsoap.org/soap/envelope/' <code> xpathStr = '/s:Envelope/s:Body' nsMAP = 'xmlns:s=http://schemas.xmlsoap.org/soap/envelope/ ' nsMAP := 'xmlns:a=http://schemas.datacontract.org/2004/07/FirstMac.Services.Category.Contracts ' nsMAP := 'xmlns=http://tempuri.org/ ' nsMAP := 'xmlns:i=http://www.w3.org/2001/XMLSchema-instance' OK = XDOMOpen( RespData, XML.FROM.STRING, hDOM ) if OK = XML.SUCCESS then crt 'XML document opened' OK = XDOMLocate( hDOM, xpathStr, nsMAP, hRoot ) if OK = XML.SUCCESS then crt 'Found ':xpathStr OK = XDOMGetNodeName( hRoot, NodeName ) crt 'Root node=':NodeName OK = XDOMLocateNode( hRoot, XDOM.CHILD, XDOM.FIRST.CHILD, XDOM.ELEMENT.NODE, hParent ) if OK = XML.SUCCESS then OK = XDOMGetNodeName( hParent, NodeName ) crt 'Parent node = ':NodeName ;* 'SuggestResponse' OK = XDOMLocateNode( hParent, XDOM.CHILD, XDOM.FIRST.CHILD, XDOM.ELEMENT.NODE, hChild ) if OK = XML.SUCCESS then OK = XDOMGetNodeName( hChild, NodeName ) crt 'Child node = ':NodeName ;* 'SuggestResult' OK = XDOMLocateNode( hChild, XDOM.CHILD, XDOM.FIRST.CHILD, XDOM.ELEMENT.NODE, hValueNode ) if OK = XML.SUCCESS then OK = XDOMGetNodeName( hValueNode, NodeName ) crt 'Value node1 = ':NodeName ;* 'a:CategoryGroup' OK = XDOMLocateNode(hValueNode, XDOM.CHILD, XDOM.FIRST.CHILD, XDOM.TEXT.NODE, hTextNode ) if OK = XML.SUCCESS then OK = XDOMGetNodeValue(hTextNode, Value ) crt 'Payload1 = ':Value ;* 'Some group data' end else gosub ShowError end end OK = XDOMLocateNode( hChild, XDOM.CHILD, 2, XDOM.ELEMENT.NODE, hValueNode ) if OK = XML.SUCCESS then OK = XDOMGetNodeName( hValueNode, NodeName ) crt 'Value node2 = ':NodeName ;* 'a:CategoryName' OK = XDOMLocateNode(hValueNode, XDOM.CHILD, XDOM.FIRST.CHILD, XDOM.TEXT.NODE, hTextNode ) if OK = XML.SUCCESS then OK = XDOMGetNodeValue(hTextNode, Value ) crt 'Payload2 = ':Value ;* 'Some name data' end else gosub ShowError end end else gosub ShowError end end else gosub ShowError end end else gosub ShowError end end OK = XDOMClose(hDOM) end return * ShowError: OK = XMLGetError(Code, ErrText) Crt "Code = ":Code Crt "Text = ":ErrText return </code> Program Output: XML document opened Found /s:Envelope/s:Body Root node=s:Body Parent node = SuggestResponse Child node = SuggestResult Value node1 = a:TagGroup Payload1 = Household expenses Value node2 = a:TagName Payload2 = Telephone / mobile A brief explanation of the above code snippet: 1. Open the xml document with XDOMOpen 2. Obtain a handle to the root node based on the specified xpathString and nsMAP parameters 3. Display the root node name 4. Obtain a handle to the parent node 5. Display the parent node name 6. Obtain a handle to the child node 7. Display the child node name 8. Obtain a handle to the 1st value node 9. display the 1st value node name 10. Obtain a handle to the text node 11. Display the 1st text data 12. Obtain a handle to the 2nd (next) value node 13. Display the 2nd value node name 14. Obtain a handle to the 2nd text node 15. Display the 2nd text data Cheers Peter [Description: Description: https://www.firstmac.com.au]<https://webmail.firstmac.com.au/owa/redir.aspx?C=3TxBWxfLckGBVPoLiIA9bpVACaOTOtAI5wx873XG4iVimMG4ihRNvq2GjE8ncHzAUsu8CiQ8FdM.&URL=http%3a%2f%2fwww.firstmac.com.au%2f> Peter Cheney Universe Engineer t 07 3017 8837 | f 07 3002 8400 e peter.che...@firstmac.com.au<https://webmail.firstmac.com.au/owa/redir.aspx?C=3TxBWxfLckGBVPoLiIA9bpVACaOTOtAI5wx873XG4iVimMG4ihRNvq2GjE8ncHzAUsu8CiQ8FdM.&URL=mailto%3apeter.cheney%40firstmac.com.au> | w www.firstmac.com.au<https://webmail.firstmac.com.au/owa/redir.aspx?C=3TxBWxfLckGBVPoLiIA9bpVACaOTOtAI5wx873XG4iVimMG4ihRNvq2GjE8ncHzAUsu8CiQ8FdM.&URL=https%3a%2f%2fwww.www.firstmac.com.au%2f> ------------------------------------------------------------------------------- Note: This email (inc all attachments) is for the use of the intended recipient(s) only. Privileged or confidential information may be contained in this communication. 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