static void readSequenceAnnotationReferences(xmlNode *node) {
SequenceAnnotation *ann;
xmlChar *path;
xmlChar *ann_uri;
xmlChar *ref_uri;
xmlNode *ref_node;
PointerArray *results;
int n;
// get SequenceAnnotation
ann_uri = getNodeURI(node);
ann = getSequenceAnnotation(DESTINATION, (char *)ann_uri);
xmlFree(ann_uri);
// add subComponent
path = BAD_CAST "./" NSPREFIX_SBOL ":" NODENAME_SUBCOMPONENT
"/" NSPREFIX_SBOL ":" NODENAME_DNACOMPONENT;
if ((ref_uri = getURIOfNodeMatchingXPath(node, path))) {
setSequenceAnnotationSubComponent(ann, getDNAComponent(DESTINATION, (char *)ref_uri));
xmlFree(ref_uri);
}
// add precedes
path = BAD_CAST "./" NSPREFIX_SBOL ":" NODENAME_PRECEDES;
if ((results = getNodesMatchingXPath(node, path))) {
for (n=0; n<getNumPointersInArray(results); n++) {
ref_node = (xmlNode *) getNthPointerInArray(results, n);
ref_uri = getNodeURI(ref_node);
addPrecedesRelationship(ann, getSequenceAnnotation(DESTINATION, (char *)ref_uri));
xmlFree(ref_uri);
}
deletePointerArray(results);
}
}
static void readCollectionReferences(xmlNode *node) {
Collection *col;
xmlChar *path;
xmlChar *col_uri;
xmlChar *ref_uri;
PointerArray *ref_nodes;
xmlNode *ref_node;
int n;
// get Collection
col_uri = getNodeURI(node);
col = getCollection(DESTINATION, (char *)col_uri);
xmlFree(col_uri);
// add components
path = BAD_CAST "./" NSPREFIX_SBOL ":" NODENAME_COMPONENT
"/" NSPREFIX_SBOL ":" NODENAME_DNACOMPONENT;
if ((ref_nodes = getNodesMatchingXPath(node, path))) {
for (n=0; n<getNumPointersInArray(ref_nodes); n++) {
ref_node = (xmlNode *) getNthPointerInArray(ref_nodes, n);
ref_uri = getNodeURI(ref_node);
addDNAComponentToCollection(col, getDNAComponent(DESTINATION, (char *)ref_uri));
xmlFree(ref_uri);
}
deletePointerArray(ref_nodes);
}
}
// Returns a structured annotation as a libXML2 xml node
xmlNode* getNthStructuredAnnotationAsXML(SBOLObject* obj, const int n) {
if (n >= getNumStructuredAnnotations(obj)) {
return NULL;
} else {
return (xmlNode *)getNthPointerInArray(obj->xml_annotations, n);
}
}
SequenceAnnotation* getNthPrecedes(const SequenceAnnotation* ann, int n) {
if (ann && getNumPrecedes(ann) >= n) {
char *uri = (char *)getNthPointerInArray(ann->precedes, n);
return getSequenceAnnotation(ann->doc, uri);
}
else
return NULL;
}
static void applyFunctionToNodesMatchingXPath(void (*fn)(xmlNode *), xmlNode *node, xmlChar *path) {
if (!path)
return;
PointerArray *results = getNodesMatchingXPath(node, path);
if (results) {
if (getNumPointersInArray(results) > 0) {
int n;
for (n=0; n<getNumPointersInArray(results); n++)
fn(getNthPointerInArray(results, n));
}
deletePointerArray(results);
}
}
static xmlNode *getSingleNodeMatchingXPath(xmlNode *node, xmlChar *path) {
PointerArray *results_array = getNodesMatchingXPath(node, path);
if (!results_array)
return NULL;
else if (getNumPointersInArray(results_array) == 0) {
deletePointerArray(results_array);
return NULL;
} else {
if (getNumPointersInArray(results_array) > 1) {
#ifdef SBOL_DEBUG_STATEMENTS
printf("Got too many nodes matching xpath %s\n", (char *)path);
#endif
}
xmlNode *result = getNthPointerInArray(results_array, 0);
deletePointerArray(results_array);
return result;
}
}
static void readDNAComponentContent(xmlNode *node) {
DNAComponent *com;
xmlChar *com_uri;
xmlChar *path;
xmlChar *type_property;
xmlNode *type_node;
xmlNode *child_node; // structured xml annotation
PointerArray *results;
int i;
// create DNAComponent
com_uri = getNodeURI(node);
com = createDNAComponent(DESTINATION, (char *)com_uri);
xmlFree(com_uri);
// add displayID, name, description
readSBOLCompoundObject(com->base, node);
// add type
path = (unsigned char*)NSPREFIX_RDF ":" NODENAME_TYPE;
if ((results = getNodesMatchingXPath(node, path))) {
type_node = (xmlNode *)getNthPointerInArray(results, 0);
type_property = xmlGetNsProp(type_node, BAD_CAST NODENAME_RESOURCE, BAD_CAST NSURL_RDF);
setDNAComponentType(com, (char *)type_property);
xmlFree(results);
}
// scan other xml nodes attached to this DNAComponent for structured xml annotations
// @TODO factor out this block of code. This routine is generally used by each of the SBOL core objects
// but it requires some custom knowledge of the calling object (in this case, DNAComponent)
child_node = node->children;
while (child_node) {
if (child_node->ns && !isSBOLNamespace(child_node->ns->href)) {
// copy xml tree and save it in the SBOLDocument object as a structural annotation
xmlNode* node_copy = xmlDocCopyNode(child_node, com->doc->xml_doc, 1);
node_copy = xmlAddChild(xmlDocGetRootElement(com->doc->xml_doc), node_copy);
i = xmlReconciliateNs(com->doc->xml_doc, xmlDocGetRootElement(com->doc->xml_doc));
insertPointerIntoArray(com->base->base->xml_annotations, node_copy);
}
child_node = child_node->next;
}
}
void removePrecedesRelationship(SequenceAnnotation* upstream, SequenceAnnotation* downstream) {
if (upstream && downstream) {
char *target_uri = getSequenceAnnotationURI(downstream);
char *query_uri;
int FOUND = 0; // found URI in list of URIs
int EOL = 0; // end of list
int i_uri = 0; // index of URI in list
while (!FOUND && !EOL) {
query_uri = (char *)getNthPointerInArray(upstream->precedes, i_uri);
if (strcmp(query_uri, target_uri) == 0) {
FOUND++;
removePointerFromArray(upstream->precedes, i_uri);
}
i_uri++;
if (i_uri == getNumPointersInArray(upstream->precedes)) {
EOL++;
}
}
}
return;
}
SequenceAnnotation* copySequenceAnnotation(SequenceAnnotation* ann, char* id_modifier) {
int i;
char* copy_uri = augmentURI(getSequenceAnnotationURI(ann), id_modifier);
SequenceAnnotation* copy = createSequenceAnnotation(ann->doc, copy_uri);
setSequenceAnnotationStart(copy, getSequenceAnnotationStart(ann));
setSequenceAnnotationEnd(copy, getSequenceAnnotationEnd(ann));
setSequenceAnnotationStrand(copy, getSequenceAnnotationStrand(ann));
// Copy precedes property
copy->precedes = createPointerArray();
char *target_uri;
for (i = 0; i < getNumPointersInArray(ann->precedes); i++) {
target_uri = (char *)getNthPointerInArray(ann->precedes, i);
insertPointerIntoArray(copy->precedes, augmentURI(target_uri, id_modifier));
}
// Copy SubComponent tree recursively
if (ann->subComponent) {
char* sub_com_uri = augmentURI(getDNAComponentURI(ann->subComponent), id_modifier);
DNAComponent* sub_com_copy = createDNAComponent(ann->doc, sub_com_uri);
setSequenceAnnotationSubComponent(copy, sub_com_copy);
}
return (SequenceAnnotation *)copy;
}
static void readDNAComponentReferences(xmlNode *node) {
DNAComponent *com;
xmlChar *path;
xmlChar *com_uri;
xmlChar *ref_uri;
PointerArray *ref_nodes;
xmlNode *ref_node;
int n;
// get DNAComponent
com_uri = getNodeURI(node);
com = getDNAComponent(DESTINATION, (char *)com_uri);
xmlFree(com_uri);
// add sequence
path = BAD_CAST "./" NSPREFIX_SBOL ":" NODENAME_DNASEQUENCE_REF
"/" NSPREFIX_SBOL ":" NODENAME_DNASEQUENCE;
if ((ref_uri = getURIOfNodeMatchingXPath(node, path))) {
setDNAComponentSequence(com, getDNASequence(DESTINATION, (char *)ref_uri));
xmlFree(ref_uri);
}
// add annotations
path = BAD_CAST "./" NSPREFIX_SBOL ":" NODENAME_ANNOTATION
"/" NSPREFIX_SBOL ":" NODENAME_SEQUENCEANNOTATION;
if ((ref_nodes = getNodesMatchingXPath(node, path))) {
for (n=0; n<getNumPointersInArray(ref_nodes); n++) {
ref_node = (xmlNode *) getNthPointerInArray(ref_nodes, n);
ref_uri = getNodeURI(ref_node);
addSequenceAnnotation(com, getSequenceAnnotation(DESTINATION, (char *)ref_uri));
xmlFree(ref_uri);
}
deletePointerArray(ref_nodes);
}
}
DNAComponent* getNthDNAComponentIn(const Collection* col, int n) {
if (col)
return (DNAComponent *)getNthPointerInArray(col->components, n);
else
return NULL;
}
SequenceAnnotation* getNthPrecedes(const SequenceAnnotation* ann, int n) {
if (ann && getNumPrecedes(ann) >= n)
return (SequenceAnnotation*) getNthPointerInArray(ann->precedes, n);
else
return NULL;
}