Starting to factor out attribute accumulation into its own file

2026-10-02 16:35:40 +02:00 · 2024-01-22 15:31:18 -08:00
parent 679a0d62f2
commit f7593b01b6
6 changed files with 100 additions and 85 deletions
@@ -0,0 +1,78 @@
+#include <string>
+#include <map>
+#include "attribute.hpp"
+#include "errors.hpp"
+#include "jsonpull/jsonpull.h"
+
+void set_attribute_accum(std::map<std::string, attribute_op> &attribute_accum, std::string name, std::string type) {
+	attribute_op t;
+
+	if (type == "sum") {
+		t = op_sum;
+	} else if (type == "product") {
+		t = op_product;
+	} else if (type == "mean") {
+		t = op_mean;
+	} else if (type == "max") {
+		t = op_max;
+	} else if (type == "min") {
+		t = op_min;
+	} else if (type == "concat") {
+		t = op_concat;
+	} else if (type == "comma") {
+		t = op_comma;
+	} else {
+		fprintf(stderr, "Attribute method (%s) must be sum, product, mean, max, min, concat, or comma\n", type.c_str());
+		exit(EXIT_ARGS);
+	}
+
+	attribute_accum.insert(std::pair<std::string, attribute_op>(name, t));
+}
+
+void set_attribute_accum(std::map<std::string, attribute_op> &attribute_accum, const char *arg, char **argv) {
+	if (*arg == '{') {
+		json_pull *jp = json_begin_string(arg);
+		json_object *o = json_read_tree(jp);
+
+		if (o == NULL) {
+			fprintf(stderr, "%s: -E%s: %s\n", *argv, arg, jp->error);
+			exit(EXIT_JSON);
+		}
+
+		if (o->type != JSON_HASH) {
+			fprintf(stderr, "%s: -E%s: not a JSON object\n", *argv, arg);
+			exit(EXIT_JSON);
+		}
+
+		for (size_t i = 0; i < o->value.object.length; i++) {
+			json_object *k = o->value.object.keys[i];
+			json_object *v = o->value.object.values[i];
+
+			if (k->type != JSON_STRING) {
+				fprintf(stderr, "%s: -E%s: key %zu not a string\n", *argv, arg, i);
+				exit(EXIT_JSON);
+			}
+			if (v->type != JSON_STRING) {
+				fprintf(stderr, "%s: -E%s: value %zu not a string\n", *argv, arg, i);
+				exit(EXIT_JSON);
+			}
+
+			set_attribute_accum(attribute_accum, k->value.string.string, v->value.string.string);
+		}
+
+		json_free(o);
+		json_end(jp);
+		return;
+	}
+
+	const char *s = strchr(arg, ':');
+	if (s == NULL) {
+		fprintf(stderr, "-E%s option must be in the form -Ename:method\n", arg);
+		exit(EXIT_ARGS);
+	}
+
+	std::string name = std::string(arg, s - arg);
+	std::string type = std::string(s + 1);
+
+	set_attribute_accum(attribute_accum, name, type);
+}