c - Filtering XML with XPath based on content of child elements -


i need filter response of soap web-service. since soap based on xml, thinking using libxml2, not able understand how write xpath expression achieve desired result.

at end of message you'll find example of response, 2 notficationmessages sent, 1 has topic tns1:ruleengine/linedetector/crossed , other 1 has topic tns1:ruleengine/cellmotiondetector/motion .

i trying write following xpath expressions:

  • match notficationmessage topic tns1:ruleengine/linedetector/crossed
  • match notficationmessage topic tns1:ruleengine//.
  • match notficationmessage topic tns1:ruleengine//.

all examples found match on attributes, not content of child elements.

so i'm asking.

  1. are kinds of matching doable libxml2 or xpath in general?
  2. can please give me hint writing xpath expressions?
<?xml version="1.0" encoding="utf-8"?>   <soap-env:envelope      xmlns:soap-env="http://www.w3.org/2003/05/soap-envelope"      xmlns:wsa="http://www.w3.org/2005/08/addressing"      xmlns:wstop="http://docs.oasis-open.org/wsn/t-1"      xmlns:wsnt="http://docs.oasis-open.org/wsn/b-2"      xmlns:tet="http://www.onvif.org/ver10/events/wsdl"      xmlns:tns1="http://www.onvif.org/ver10/topics"     xmlns:tt="http://www.onvif.org/ver10/schema">     <soap-env:header>       <wsa:action>  http://www.onvif.org/ver10/events/wsdl/pullpointsubscription/pullmessagesresponse       </wsa:action>     </soap-env:header>     <soap-env:body>       <tet:pullmessagesresponse>         <tet:currenttime>           2008-10-10t12:24:58         </tet:currenttime>         <tet:terminationtime>           2008-10-10t12:25:58         </tet:terminationtime>         <wsnt:notificationmessage>           <wsnt:topic dialect="http://www.onvif.org/ver10/tev/topicexpression/concreteset">             tns1:ruleengine/linedetector/crossed           </wsnt:topic>           <wsnt:message>             <tt:message utctime="2008-10-10t12:24:57.321z">               <tt:source>                 <tt:simpleitem name="videosourceconfigurationtoken"                                value="1"/>                 <tt:simpleitem name="videoanalyticsconfigurationtoken"                                value="2"/>                 <tt:simpleitem value="myimportantfence1" name="rule"/>               </tt:source>               <tt:data>                 <tt:simpleitem name="objectid" value="15" />               </tt:data>             </tt:message>           </wsnt:message>         </wsnt:notificationmessage>         <wsnt:notficationmessage>           <wsnt:topic dialect="http://www.onvif.org/ver10/tev/topicexpression/concreteset">            tns1:ruleengine/cellmotiondetector/motion           </wsnt:topic>           <wsnt:message>             <tt:message utctime= "2010-10-20t12:24:57.628">               <tt:source>                <tt:simpleitem name="videosourceconfigurationtoken" value="1"/>                <tt:simpleitem name="videoanalyticsconfigurationtoken" value="1"/>                <tt:simpleitem name="rule" value="motionindefinedcells"/>               </tt:source>                 <tt:data>                <tt:simpleitem name="ismotion" value="true"/>               </tt:data>             </tt:message>           </wsnt:message>         </wsnt:notficationmessage>       </tet:pullmessagesresponse>     </soap-env:body> </soap-env:envelope>

all need basic xpath expressions using location paths , predicates:

  1. match notficationmessage topic tns1:ruleengine/linedetector/crossed

    //wsnt:notificationmessage[wsnt:topic = 'tns1:ruleengine/linedetector/crossed']

  2. match notficationmessage topic tns1:ruleengine//.

    //wsnt:notificationmessage[wsnt:topic = 'tns1:ruleengine//.']

  3. match notficationmessage topic tns1:ruleengine//.

    //wsnt:notificationmessage[wsnt:topic != 'tns1:ruleengine//.']

Comments

Post a Comment

Popular posts from this blog

java - WARN : org.springframework.web.servlet.PageNotFound - No mapping found for HTTP request with URI [/board/] in DispatcherServlet with name 'appServlet' -

this question has answer here: why spring mvc respond 404 , report “no mapping found http request uri […] in dispatcherservlet”? 3 answers i trying making simple bbs i'm encountering following error, warn : org.springframework.web.servlet.pagenotfound - no mapping found http request uri [/board/] in dispatcherservlet name 'appservlet' i have tried solve error many times, have failed. how can solve error? here web.xml, controllerand , servlet-context. my web.xml <?xml version="1.0" encoding="utf-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" xsi:schemalocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <filter> <filter-nam...
Read more

html - Outlook 2010 Anchor (url/address/link) -

i'm trying link specific pdf page msoutlook'10 or msword'10, #page=... anchor particularly useful , works fine elsewhere. unfortunately when click [ctr-k] in outlook or winword, links re-formatted assuming unc path. pdf file located on shared drive. using "file:" prefix links open pdf in adobe reader (outside of browser), , "http:" open inside browser. issue seem need open in browser "file:" prefix in order anchor work. know anchors work inside browser. outlook uses windows/explorer default program (based on file extension) seems open in adobe reader neglecting anchor. is aware of solution, link specific page or bookmark of shared-pdf ms outlook and/or winword link? common references: mailermailer.com/...anchor-tags-html-emails campaignmonitor.com/...anchor-links-in-email-newsletters/ stackoverflow.com/...anchor-in-pdf-document
Read more

android - How to create dynamically Fragment pager adapter -

i unable create dynamic layout each tabs, able create tabs dynamically constructor(public mypageradapter(fragmentmanager fm , int nooftabs)), coudn't inflate view each tabs creating each fragment should dyanmic. public class mypageradapter extends fragmentpageradapter { private final string[] titles = { "categories", "home", "top paid", "top free", "top grossing", "top new paid", "top new free", "trending" }; int nooftabs; **public mypageradapter(fragmentmanager fm , int nooftabs) { super(fm); this.nooftabs = nooftabs; }** /*public mypageradapter(fragmentmanager fm) { super(fm); }*/ @override public charsequence getpagetitle(int position) { return titles[position]; } @override public int getcount() { ...
Read more