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From Manjula Peiris <manj...@wso2.com>
Subject Re: Some quick Axis2C help required
Date Tue, 04 Nov 2008 17:29:04 GMT
Have a look at [1]. It contains axiom test programs.

https://svn.apache.org/repos/asf/webservices/axis2/trunk/c/axiom/test

-Manjula.



On Tue, 2008-11-04 at 18:09 +0530, ramesh Gopal wrote:
> Hi Ssupun,
> 
> Is this a better way as per coding standards.
> Or, the methodology I have been using is more effective.
> 
> In broader terms ,
> 
> Sample xml
> ----------
> <operation>
> <in1>1</in1>
> <in2>2</in2>
> </operation>
> 
> I will first need to get the parent element, and then all the children and loop thru
it.
> 
> axiom_element_get_child_elements creates a list. And what does axiom_child_element_iterator_has_next
do ?
> 
> Keeping the above mentioned xml, if you can tell me in a few lines of code, which will
prevent me from running into the "Segmentation issue", it would be great.
> 
> Thanks
> Ramesh.
> 
> 
> --- On Tue, 4/11/08, Supun Kamburugamuva <supun06@gmail.com> wrote:
> 
> > From: Supun Kamburugamuva <supun06@gmail.com>
> > Subject: Re: Some quick Axis2C help required
> > To: "Apache AXIS C User List" <axis-c-user@ws.apache.org>, fatuzorin2001@yahoo.com
> > Date: Tuesday, 4 November, 2008, 4:47 PM
> > Here is a code sample for using the child element iterator.
> > You can find
> > this kind of code all over the axis2/C source.
> > 
> > axiom_child_element_iterator_t *ci = NULL;
> > 
> > if ((ci = axiom_element_get_child_elements(element, env,
> > node)) != NULL)
> > {
> >         axiom_element_t *ce = NULL;
> >         axiom_node_t *cn = NULL;
> >         while(AXIS2_TRUE ==
> > axiom_child_element_iterator_has_next(ci, env))
> >         {
> >             cn = axiom_child_element_iterator_next(ci,
> > env);
> >             /* chile element do what ever you want */
> >             ce = axiom_node_get_data_element(cn, env);
> > 
> >         }
> > }
> > 
> > Supun.
> > 
> > On Tue, Nov 4, 2008 at 3:29 PM, ramesh Gopal
> > <fatuzorin2001@yahoo.com>wrote:
> > 
> > >
> > >
> > > Hi Shankar,
> > >
> > > Could you give me a better solution which achieves
> > this ...
> > >
> > > Basically, I want to read all the child nodes (for a
> > node) and get the
> > > values.
> > >
> > > I have tried using axiom_element_get_child_elements or
> > > axiom_element_get_children ... but in vain, simply
> > because I do not know how
> > > to use them ..
> > >
> > > I have sent you the portion of my code, pls give me
> > your suggestions.
> > >
> > > Rgds,
> > > Ramesh.
> > >
> > >
> > > --- On Tue, 4/11/08, Uthaiyashankar
> > <shankar@wso2.com> wrote:
> > >
> > > > From: Uthaiyashankar <shankar@wso2.com>
> > > > Subject: Re: Some quick Axis2C help required
> > > > To: "Apache AXIS C User List"
> > <axis-c-user@ws.apache.org>
> > > > Date: Tuesday, 4 November, 2008, 1:09 PM
> > > > Hi Ramesh,
> > > >
> > > > See the comments.
> > > >
> > > >
> > > > > Sample xml request:
> > > > > -------------------
> > > > >
> > > > > <operation>
> > > > > <in1>1</in1>
> > > > > <in2>2</in2>
> > > > > </operation>
> > > > >
> > > > > My sample code :
> > > > > ----------------
> > > > >
> > > > > if (node) { --- This is the entire xml
> > > > > parent_node =3D
> > axiom_node_get_first_element(node,
> > > > env); --- Here, I though=
> > > > > I will get operation as the first element,
> > but I get
> > > > <in1>1</in1> ...
> > > > >
> > > >
> > > > You have to do
> > "axiom_node_get_data_element" to
> > > > get <operation> as the
> > > > element. When you do
> > axiom_node_get_first_element, it will
> > > > return first
> > > > child whose type is om element.
> > > >
> > > >
> > > > > If this is wrong pls point out the exact
> > function that
> > > > I ought to be using.
> > > > >
> > > > > {
> > > > > if (!parent_node)
> > > > > { // throw error;
> > > > > }
> > > > > request_node =3D
> > > > axiom_node_get_first_child(parent_node, env);
> > > > > if (!request_node)
> > > > > { // throw error;
> > > > > }
> > > > > if (request_node &&
> > > > axiom_node_get_node_type(request_node, env)
> > =3D=3D AXIO=
> > > > > M_TEXT)
> > > > > { // Get value of TEXT --- Here we get value
> > > > "1"
> > > > > }
> > > > > }
> > > > > sibling_node =3D
> > > > axiom_node_get_next_sibling(parent_node, env);
> > --- Here I =
> > > > > get <in2>2</in2>, which is a
> > sibling to
> > > > <in1>1</in1>
> > > > >
> > > > > if (!sibling_node) { // throw error ; }
> > > > > request_node =3D
> > > > axiom_node_get_first_child(sibling_node, env);
> > > > > if (!request_node)
> > > > > { // throw error;
> > > > > }
> > > > > if (request_node &&
> > > > axiom_node_get_node_type(request_node, env)
> > =3D=3D AXIO=
> > > > > M_TEXT)
> > > > > { // Get value of TEXT --- Here we get value
> > > > "2"
> > > > > }=20
> > > > > }
> > > > >
> > > > >
> > > > > I am running into some issues
> > > > >
> > > >
> > > >  First error is caused by
> > axiom_node_free_detached_subtree,
> > > > which I
> > > > could not find in the code you have sent. Can you
> > send the
> > > > correct code
> > > > which causes these errors?
> > > >
> > > > Regards,
> > > > Shankar
> > > >
> > > > >
> > > > > Below is some error which I get :
> > > > > ---------------------------------
> > > > >
> > > > > Program received signal SIGSEGV,
> > Segmentation fault.
> > > > > [Switching to Thread -1208951888 (LWP
> > 19071)]
> > > > > axiom_node_free_detached_subtree
> > (om_node=3D0x8927758,
> > > > env=3D0x8920e60)
> > > > > at om_node.c:105
> > > > > 105 next_sibling =3D
> > child_node->next_sibling;
> > > > >
> > > > > #0 axiom_node_free_detached_subtree
> > > > (om_node=3D0x81d9758, env=3D0x81d2e60)
> > > > > at om_node.c:105
> > > > > #1 0x006005a2 in
> > axiom_node_free_detached_subtree
> > > > (om_node=3D0x81d96d0,=20
> > > > > env=3D0x81d2e60) at om_node.c:106
> > > > > #2 0x006005a2 in
> > axiom_node_free_detached_subtree
> > > > (om_node=3D0x81d9528,=20
> > > > > env=3D0x81d2e60) at om_node.c:106
> > > > > #3 0x006005a2 in
> > axiom_node_free_detached_subtree
> > > > (om_node=3D0x81d9478,=20
> > > > > env=3D0x81d2e60) at om_node.c:106
> > > > > #4 0x006005a2 in
> > axiom_node_free_detached_subtree
> > > > (om_node=3D0x81d9198,=20
> > > > > env=3D0x81d2e60) at om_node.c:106
> > > > > #5 0x0060026e in axiom_document_free
> > > > (document=3D0x81d50b8, env=3D0x81d2e60=
> > > > > )
> > > > > at om_document.c:87
> > > > > #6 0x00607b6e in axiom_stax_builder_free
> > > > (om_builder=3D0x81d5010, env=3D0x8=
> > > > > 1d2e60)
> > > > > at om_stax_builder.c:897
> > > > > #7 0x0060e7ad in axiom_soap_builder_free
> > > > (soap_builder=3D0x81d50d8,=20
> > > > > env=3D0x81d2e60) at soap_builder.c:188
> > > > > #8 0x0060dd25 in axiom_soap_envelope_free
> > > > (soap_envelope=3D0x81d9338,=20
> > > > > env=3D0x81d2e60) at soap_envelope.c:178
> > > > > #9 0x0806b2be in axis2_msg_ctx_free
> > > > (msg_ctx=3D0x81d45f8, env=3D0x81d2e60)
> > > > > at msg_ctx.c:410
> > > > > #10 0x00c60b43 in
> > axis2_http_worker_process_request
> > > > (http_worker=3D0x81d0d3=
> > > > > 8,=20
> > > > > env=3D0x81d2e60, svr_conn=3D0x81d2e80,
> > > > simple_request=3D0x81d2f48)
> > > > > at http_worker.c:1952
> > > > >
> > > > > Program received signal SIGSEGV,
> > Segmentation fault.
> > > > > [Switching to Thread -1208378448 (LWP
> > 18971)]
> > > > > axiom_node_create (env=3D0x20202020) at
> > om_node.c:75
> > > > > 75 node =3D (axiom_node_t *)
> > > > AXIS2_MALLOC(env->allocator,
> > sizeof(axiom_node=
> > > > > _t));
> > > > >
> > > > > #0 axiom_node_create (env=3D0x20202020) at
> > > > om_node.c:75
> > > > > #1 0x00f250fa in axiom_element_create
> > > > (env=3D0x20202020, parent=3D0x0,=20
> > > > > localname=3D0x4e9f8c "outparam0",
> > ns=3D0x0,
> > > > node=3D0xb7f98f30) at om_elemen=
> > > > > t.c:78
> > > > > #2 0x004e9a0f in build_res_text_response ()
> > > > > from
> > ..//services/ws_test_demo/libws_test_demo.so
> > > > > #3 0x004e99ac in
> > axis2_skel_ws_test_demo_test_demo ()
> > > > > from
> > ..//services/ws_test_demo/libws_test_demo.so
> > > > > #4 0x20202020 in ?? ()
> > > > > #5 0x20202020 in ?? ()
> > > > > #6 0x20202020 in ?? ()
> > > > > #7 0xb7f99000 in ?? ()
> > > > > #8 0x004e9b62 in
> > axis2_svc_skel_ws_test_demo_invoke ()
> > > > > from
> > ..//services/ws_test_demo/libws_test_demo.so
> > > > >
> > > > >
> > > > > Pls let me know, if I am missing something
> > ...
> > > > >
> > > > > Also, pls let me know if you need more info.
> > > > > I need some help on an urgent basis.
> > > > >
> > > > > Rgds,
> > > > > Ramesh
> > > > >
> > > > >
> > > > >       Add more friends to your messenger and
> > enjoy! Go
> > > > to http://messenger.yahoo.com/invite/
> > > > >
> > > > >
> > > > >
> > > >
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> > > > >
> > > > >
> > > > >
> > > > >
> > > >
> > > >
> > > > --
> > > > S.Uthaiyashankar
> > > > Software Architect
> > > > WSO2 Inc.
> > > > http://wso2.com/ - "The Open Source SOA
> > Company"
> > > >
> > > >
> > > >
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> > 
> > 
> > -- 
> > Software Engineer, WSO2 Inc
> > http://wso2.org
> > Web Services with Axis2/C http://wsaxc.blospot.com
> 
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