Method GetRow

storage/connect/jsonudf.cpp:733–806

/ GetRow: Set the complete path of the object to be set. */ /

/*  GetRow: Set the complete path of the object to be set.             */
/***********************************************************************/
PJSON JSNX::GetRow(PGLOBAL g)
{
	PJVAL val = NULL;
	PJAR  arp;
	PJSON nwr, row = Row;

	for (int i = 0; i < Nod - 1 && row; i++) {
		if (Nodes[i].Op == OP_XX)
			break;
		else switch (row->GetType()) {
		case TYPE_JOB:
			if (!Nodes[i].Key)
				// Expected Array was not there, wrap the value
				continue;

			val = ((PJOB)row)->GetKeyValue(Nodes[i].Key);
			break;
		case TYPE_JAR:
			arp = (PJAR)row;

			if (!Nodes[i].Key) {
				if (Nodes[i].Op == OP_EQ)
					val = arp->GetArrayValue(Nodes[i].Rank);
				else
					val = arp->GetArrayValue(Nodes[i].Rx);

			} else {
				// Unexpected array, unwrap it as [0]
				val = arp->GetArrayValue(0);
				i--;
			} // endif Nodes

			break;
		case TYPE_JVAL:
			val = (PJVAL)row;
			break;
		default:
			snprintf(g->Message, sizeof(g->Message), "Invalid row JSON type %d", row->GetType());
			val = NULL;
		} // endswitch Type

		if (val) {
			row = val->GetJson();
		} else {
			// Construct missing objects
			for (i++; row && i < Nod; i++) {
				if (Nodes[i].Op == OP_XX)
					break;
				else if (!Nodes[i].Key)
					// Construct intermediate array
					nwr = new(g)JARRAY;
				else
					nwr = new(g)JOBJECT;

				if (row->GetType() == TYPE_JOB) {
					((PJOB)row)->SetKeyValue(g, new(g)JVALUE(nwr), Nodes[i-1].Key);
				} else if (row->GetType() == TYPE_JAR) {
					((PJAR)row)->AddArrayValue(g, new(g)JVALUE(nwr));