void delete_distributed_derivation(DistributedDerivation *distributed_derivation)
{
if(distributed_derivation != NULL)
{
delete_derivation_array(distributed_derivation->derivation_array);
delete_interface_array(distributed_derivation->interface_array);
g_free(distributed_derivation);
}
}
DistributedDerivation *create_distributed_derivation(const gchar *distributed_derivation_file)
{
GPtrArray *derivation_array, *interface_array;
DistributedDerivation *distributed_derivation;
derivation_array = create_derivation_array(distributed_derivation_file);
if(derivation_array == NULL)
return NULL;
interface_array = create_interface_array(distributed_derivation_file);
if(interface_array == NULL)
{
delete_derivation_array(derivation_array);
return NULL;
}
distributed_derivation = (DistributedDerivation*)g_malloc(sizeof(DistributedDerivation));
distributed_derivation->derivation_array = derivation_array;
distributed_derivation->interface_array = interface_array;
return distributed_derivation;
}
GPtrArray *create_derivation_array(const gchar *distributed_derivation_file)
{
/* Declarations */
xmlDocPtr doc;
xmlNodePtr node_root;
xmlXPathObjectPtr result;
GPtrArray *derivation_array = NULL;
/* Parse the XML document */
if((doc = xmlParseFile(distributed_derivation_file)) == NULL)
{
g_printerr("Error with parsing the distributed derivation XML file!\n");
xmlCleanupParser();
return NULL;
}
/* Retrieve root element */
node_root = xmlDocGetRootElement(doc);
if(node_root == NULL)
{
g_printerr("The distributed derivation XML file is empty!\n");
xmlFreeDoc(doc);
xmlCleanupParser();
return NULL;
}
/* Query the mapping elements */
result = executeXPathQuery(doc, "/distributedderivation/build/mapping");
/* Iterate over all the mapping elements and add them to the array */
if(result)
{
xmlNodeSetPtr nodeset = result->nodesetval;
unsigned int i;
/* Create a derivation array */
derivation_array = g_ptr_array_new();
/* Iterate over all the mapping elements */
for(i = 0; i < nodeset->nodeNr; i++)
{
xmlNodePtr mapping_children = nodeset->nodeTab[i]->children;
DerivationItem *item = (DerivationItem*)g_malloc(sizeof(DerivationItem));
gchar *derivation = NULL, *target = NULL;
/* Iterate over all the mapping item children (derivation and target elements) */
while(mapping_children != NULL)
{
if(xmlStrcmp(mapping_children->name, (xmlChar*) "derivation") == 0)
derivation = duplicate_node_text(mapping_children);
else if(xmlStrcmp(mapping_children->name, (xmlChar*) "target") == 0)
target = duplicate_node_text(mapping_children);
mapping_children = mapping_children->next;
}
/* Added the mapping to the array */
item->derivation = derivation;
item->target = target;
item->result = NULL;
if(item->derivation == NULL || item->target == NULL)
{
/* Check if all mandatory properties have been provided */
g_printerr("A mandatory property seems to be missing. Have you provided a correct\n");
g_printerr("distributed derivation file?\n");
delete_derivation_array(derivation_array);
derivation_array = NULL;
break;
}
else
g_ptr_array_add(derivation_array, item); /* Add item to the array */
}
xmlXPathFreeObject(result);
}
/* Cleanup */
xmlFreeDoc(doc);
xmlCleanupParser();
/* Return the derivation array */
return derivation_array;
}
