From 860cbdf33b4e6a928c0f3153ed57539a2750e9d6 Mon Sep 17 00:00:00 2001
From: Florian Forster <octo@verplant.org>
Date: Wed, 8 Sep 2010 10:44:54 +0200
Subject: [PATCH] src/graph_def.[ch]: Implement "def_to_json".

---
 src/graph_def.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 src/graph_def.h |  4 ++++
 2 files changed, 53 insertions(+)

diff --git a/src/graph_def.c b/src/graph_def.c
index b358905..7ac8dac 100644
--- a/src/graph_def.c
+++ b/src/graph_def.c
@@ -148,6 +148,42 @@ static graph_def_t *def_config_get_obj (graph_config_t *cfg, /* {{{ */
   return (def);
 } /* }}} graph_def_t *def_config_get_obj */
 
+static int def_to_json_recursive (const graph_def_t *def, /* {{{ */
+    yajl_gen handler)
+{
+  char color[16];
+
+  if (def == NULL)
+    return (0);
+
+  snprintf (color, sizeof (color), "%06"PRIx32, def->color);
+  color[sizeof (color) - 1] = 0;
+
+  yajl_gen_map_open (handler);
+
+#define yajl_gen_string_cast(h,p,l) \
+  yajl_gen_string (h, (unsigned char *) p, (unsigned int) l)
+
+  yajl_gen_string_cast (handler, "select", strlen ("select"));
+  ident_to_json (def->select, handler);
+  yajl_gen_string_cast (handler, "ds_name", strlen ("ds_name"));
+  yajl_gen_string_cast (handler, def->ds_name, strlen (def->ds_name));
+  yajl_gen_string_cast (handler, "legend", strlen ("legend"));
+  yajl_gen_string_cast (handler, def->legend, strlen (def->legend));
+  yajl_gen_string_cast (handler, "color", strlen ("color"));
+  yajl_gen_string_cast (handler, color, strlen (color));
+  yajl_gen_string_cast (handler, "stack", strlen ("stack"));
+  yajl_gen_bool   (handler, def->stack);
+  yajl_gen_string_cast (handler, "area", strlen ("area"));
+  yajl_gen_bool   (handler, def->area);
+  yajl_gen_string_cast (handler, "format", strlen ("format"));
+  yajl_gen_string_cast (handler, def->format, strlen (def->format));
+
+  yajl_gen_map_close (handler);
+
+  return (def_to_json_recursive (def->next, handler));
+} /* }}} int def_to_json_recursive */
+
 /*
  * Public functions
  */
@@ -421,4 +457,17 @@ int def_get_rrdargs (graph_def_t *def, graph_ident_t *ident, /* {{{ */
   return (0);
 } /* }}} int def_get_rrdargs */
 
+int def_to_json (const graph_def_t *def, /* {{{ */
+    yajl_gen handler)
+{
+  if (handler == NULL)
+    return (EINVAL);
+
+  yajl_gen_array_open (handler);
+  def_to_json_recursive (def, handler);
+  yajl_gen_array_close (handler);
+
+  return (0);
+} /* }}} int def_to_json */
+
 /* vim: set sw=2 sts=2 et fdm=marker : */
diff --git a/src/graph_def.h b/src/graph_def.h
index 7c3e9fe..ed9a24c 100644
--- a/src/graph_def.h
+++ b/src/graph_def.h
@@ -24,6 +24,8 @@
 #ifndef GRAPH_DEF_H
 #define GRAPH_DEF_H 1
 
+#include <yajl/yajl_gen.h>
+
 #include "graph_types.h"
 #include "utils_array.h"
 #include "oconfig.h"
@@ -48,5 +50,7 @@ int def_foreach (graph_def_t *def, def_callback_t callback, void *user_data);
 int def_get_rrdargs (graph_def_t *def, graph_ident_t *ident,
     rrd_args_t *args);
 
+int def_to_json (const graph_def_t *def, yajl_gen handler);
+
 /* vim: set sw=2 sts=2 et fdm=marker : */
 #endif
-- 
2.11.0