Re: [libvirt-glib 08/23] Implement gvir_config_domain_set_name

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On Tue, Oct 18, 2011 at 12:39:34PM +0100, Daniel P. Berrange wrote:
> On Fri, Oct 07, 2011 at 11:40:53AM +0200, Christophe Fergeau wrote:
> > ---
> >  libvirt-gconfig/libvirt-gconfig-domain.c |   27 +++++++++++++++++++++++++++
> >  libvirt-gconfig/libvirt-gconfig-domain.h |    1 +
> >  libvirt-gconfig/libvirt-gconfig.sym      |    1 +
> >  3 files changed, 29 insertions(+), 0 deletions(-)
> > 
> > diff --git a/libvirt-gconfig/libvirt-gconfig-domain.c b/libvirt-gconfig/libvirt-gconfig-domain.c
> > index 7ae10b8..06fc3fa 100644
> > --- a/libvirt-gconfig/libvirt-gconfig-domain.c
> > +++ b/libvirt-gconfig/libvirt-gconfig-domain.c
> > @@ -130,3 +130,30 @@ char *gvir_config_domain_get_name(GVirConfigDomain *domain)
> >      return gvir_config_xml_get_child_element_content_glib(node, "name");
> >  
> >  }
> > +
> > +void gvir_config_domain_set_name(GVirConfigDomain *domain, const char *name)
> > +{
> > +    xmlNodePtr parent_node;
> > +    xmlNodePtr old_node;
> > +    xmlNodePtr new_node;
> > +    xmlChar *encoded_name;
> > +
> > +    parent_node = gvir_config_object_get_xml_node(GVIR_CONFIG_OBJECT(domain),
> > +                                                  NULL);
> > +    encoded_name = xmlEncodeEntitiesReentrant(parent_node->doc,
> > +                                              (xmlChar *)name);
> > +    new_node = xmlNewDocNode(parent_node->doc, NULL,
> > +                             (xmlChar *)"name", encoded_name);
> > +    xmlFree(encoded_name);
> > +
> > +    old_node = gvir_config_xml_get_element(parent_node, "name", NULL);
> > +
> > +    if (old_node) {
> > +        old_node = xmlReplaceNode(old_node, new_node);
> > +        xmlFreeNode(old_node);
> > +    } else {
> > +        xmlAddChild(parent_node, new_node);
> > +    }
> > +
> > +    g_object_notify(G_OBJECT(domain), "name");
> > +}
> 
> Perhaps we want another helper method for setting XML elements too.

Yep this is planned, see
https://gitorious.org/~teuf/libvirt/teuf-libvirt-glib/commit/264c6f952f02380ac21f379f0ddb2dc8cbb041fd
for example

> 
> In python-virtinst, they had a helper which allowed a very simple
> xpath like use.eg
> 
>    gvir_config_xml_set_element(parent_node, "/name", node);
> 
> Or
> 
>    gvir_config_xml_set_element(parent_node, "/foo/bar/name", node);
> 
> automagically creating foo & bar in the process.

Ah, interesting, my version is a bit more simplistic.

> And setting NULL terminated list of attributes
> 
>   gvir_config_xml_set_element_attrs(parent_node, "/blah",
>                                     "someattr", "somevalue",
>                                     "otherattr", "othervalue",
>                                     NULL);

yep, thought about that one too when adding some of the helpers, I'll come
to it when I feel I'm duplicating too much code :)

Christophe

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