+/**
+ * collection4 - collection.js
+ * Copyright (C) 2010-2013 Florian octo Forster
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA
+ *
+ * Authors:
+ * Florian octo Forster <octo at collectd.org>
+ **/
+
+var c4 =
+{
+ instances: new Array (),
+ config:
+ {
+ width: 324,
+ height: 200
+ }
+};
+
+function value_to_string (value) /* {{{ */
+{
+ var abs_value;
+ var v2s = function (value)
+ {
+ var tmp = Math.round (100.0 * value) / 100.0;
+ return ("" + tmp);
+ }
+
+ if (value == null)
+ return ('NaN');
+ else if (value == 0)
+ return ('0');
+
+ abs_value = Math.abs (value);
+
+ if ((abs_value < 10000) && (abs_value >= 0.1))
+ return (v2s (value));
+ else if (abs_value > 1)
+ {
+ if (abs_value < 10000000)
+ return (v2s (value / 1000) + "k");
+ else if (abs_value < 10000000000)
+ return (v2s (value / 1000000) + "M");
+ else if (abs_value < 10000000000000)
+ return (v2s (value / 1000000000) + "G");
+ else
+ return (v2s (value / 1000000000000) + "T");
+ }
+ else
+ {
+ if (abs_value >= 0.001)
+ return (v2s (value * 1000) + "m");
+ else if (abs_value >= 0.000001)
+ return (v2s (value * 1000000) + "u");
+ else
+ return (v2s (value * 1000000000) + "n");
+ }
+} /* }}} function value_to_string */
+
+function instance_get_params (inst) /* {{{ */
+{
+ var graph_selector = inst.graph_selector;
+ var inst_selector = inst.instance_selector;
+ var selector = {};
+
+ if (graph_selector.host == inst_selector.host)
+ {
+ selector.host = graph_selector.host;
+ }
+ else
+ {
+ selector.graph_host = graph_selector.host;
+ selector.inst_host = inst_selector.host;
+ }
+
+ if (graph_selector.plugin == inst_selector.plugin)
+ {
+ selector.plugin = graph_selector.plugin;
+ }
+ else
+ {
+ selector.graph_plugin = graph_selector.plugin;
+ selector.inst_plugin = inst_selector.plugin;
+ }
+
+ if (graph_selector.plugin_instance == inst_selector.plugin_instance)
+ {
+ selector.plugin_instance = graph_selector.plugin_instance;
+ }
+ else
+ {
+ selector.graph_plugin_instance = graph_selector.plugin_instance;
+ selector.inst_plugin_instance = inst_selector.plugin_instance;
+ }
+
+ if (graph_selector.type == inst_selector.type)
+ {
+ selector.type = graph_selector.type;
+ }
+ else
+ {
+ selector.graph_type = graph_selector.type;
+ selector.inst_type = inst_selector.type;
+ }
+
+ if (graph_selector.type_instance == inst_selector.type_instance)
+ {
+ selector.type_instance = graph_selector.type_instance;
+ }
+ else
+ {
+ selector.graph_type_instance = graph_selector.type_instance;
+ selector.inst_type_instance = inst_selector.type_instance;
+ }
+
+ return (selector);
+} /* }}} instance_get_params */
+
+function ident_clone (ident) /* {{{ */
+{
+ var ret = {};
+
+ ret.host = ident.host;
+ ret.plugin = ident.plugin;
+ ret.plugin_instance = ident.plugin_instance;
+ ret.type = ident.type;
+ ret.type_instance = ident.type_instance;
+
+ return (ret);
+} /* }}} ident_clone */
+
+function inst_get_defs (inst) /* {{{ */
+{
+ if (!inst.def)
+ {
+ var params = instance_get_params (inst);
+ params.action = "graph_def_json";
+
+ $.ajax({
+ url: "collection.fcgi",
+ async: false,
+ dataType: 'json',
+ data: params,
+ success: function (data)
+ {
+ if (!data)
+ return;
+
+ inst.def = data;
+ }});
+ }
+
+ if (inst.def)
+ return (inst.def);
+ return;
+} /* }}} inst_get_defs */
+
+function ident_matches (selector, ident) /* {{{ */
+{
+ var part_matches = function (s,p)
+ {
+ if (s == null)
+ return (false);
+
+ if ((s == "/any/") || (s == "/all/"))
+ return (true);
+
+ if (p == null)
+ return (false);
+
+ if (s == p)
+ return (true);
+
+ return (false);
+ };
+
+ if (!part_matches (selector.host, ident.host))
+ return (false);
+
+ if (!part_matches (selector.plugin, ident.plugin))
+ return (false);
+
+ if (!part_matches (selector.plugin_instance, ident.plugin_instance))
+ return (false);
+
+ if (!part_matches (selector.type, ident.type))
+ return (false);
+
+ if (!part_matches (selector.type_instance, ident.type_instance))
+ return (false);
+
+ return (true);
+} /* }}} function ident_matches */
+
+function ident_describe (ident, selector) /* {{{ */
+{
+ var ret = "";
+ var check_field = function (field)
+ {
+ if (ident[field].toLowerCase () != selector[field].toLowerCase ())
+ {
+ if (ret != "")
+ ret += "/";
+ ret += ident[field];
+ }
+ };
+
+ check_field ("host");
+ check_field ("plugin");
+ check_field ("plugin_instance");
+ check_field ("type");
+ check_field ("type_instance");
+
+ if (ret == "")
+ return (null);
+ return (ret);
+} /* }}} function ident_describe */
+
+/*
+ * Given one metric definition, returns the appropriate metric data from the
+ * graph data (data list). */
+function metric_def_get_data (metric_def, graph_data)
+{
+ var i;
+
+ for (i = 0; i < graph_data.length; i++)
+ {
+ if ((metric_def.ds_name) && (metric_def.ds_name != graph_data[i].data_source))
+ continue;
+ if (!ident_matches (metric_def.select, graph_data[i].file))
+ continue;
+
+ return (graph_data[i]);
+ }
+ return;
+}
+
+function metric_def_to_rickshaw_series (metric_def, metric_data)
+{
+ var series = {
+ data: []
+ };
+ var i;
+
+ if (metric_def.legend)
+ series.name = metric_def.legend;
+
+ if (metric_def.color)
+ series.color = metric_def.color;
+
+ for (i = 0; i < metric_data.data.length; i++)
+ {
+ var x = metric_data.first_value_time + (i * metric_data.interval);
+ var y = metric_data.data[i];
+
+ series.data.push ({'x': x, 'y': y});
+ }
+
+ return (series);
+}
+
+function graph_def_to_rickshaw_config (root_element, graph_def, data_list)
+{
+ var graph_config = {
+ element: root_element,
+ renderer: 'line',
+ series: []
+ };
+ var graph;
+ var i;
+
+ for (i = 0; i < graph_def.defs.length; i++)
+ {
+ var metric_def = graph_def.defs[i];
+ var metric_data = metric_def_get_data (metric_def, data_list);
+ var series;
+
+ if (!metric_data)
+ continue;
+
+ series = metric_def_to_rickshaw_series (metric_def, metric_data);
+ if (series)
+ graph_config.series.push (series);
+ }
+
+ return (graph_config);
+}
+
+function graph_def_to_rickshaw_graph (root_element, graph_def, graph_data)
+{
+ var graph_config = graph_def_to_rickshaw_config (root_element, graph_def, graph_data);
+
+ var graph = new Rickshaw.Graph (graph_config);
+ graph.render ();
+
+ var x_axis = new Rickshaw.Graph.Axis.Time({
+ graph: graph
+ });
+ x_axis.render ();
+
+ var y_axis = new Rickshaw.Graph.Axis.Y({
+ graph: graph
+ });
+ y_axis.render ();
+}
+
+function inst_draw_rickshaw (inst, graph_def, graph_data)
+{
+ var root_element = document.getElementById (inst.container);
+
+ inst.chart = graph_def_to_rickshaw_graph (root_element, graph_def, graph_data);
+}
+
+function inst_draw (inst, graph_def, graph_data)
+{
+ inst_draw_rickshaw (inst, graph_def, graph_data);
+}
+
+function inst_redraw (inst, graph_def, graph_data) /* {{{ */
+{
+ var series_array;
+ var i;
+
+ if (!inst.chart)
+ return (inst_draw (inst, graph_def, graph_data));
+ else
+ return; /* TODO: Insert new data into the graph */
+} /* }}} function inst_redraw */
+
+function inst_fetch_data (inst, begin, end) /* {{{ */
+{
+ var graph_def;
+ var params;
+
+ graph_def = inst_get_defs (inst);
+ if (!graph_def)
+ return;
+
+ params = instance_get_params (inst);
+ params.action = "instance_data_json";
+ params.begin = begin || inst.begin;
+ params.end = end || inst.end;
+ params.resolution = (params.end - params.begin) / c4.config.width;
+
+ $.getJSON ("collection.fcgi", params,
+ function (data)
+ {
+ inst_redraw (inst, graph_def, data);
+ }); /* getJSON */
+} /* }}} inst_fetch_data */
+
+function json_graph_update (index) /* {{{ */
+{
+ var inst;
+
+ inst = c4.instances[index];
+ if (!inst)
+ return;
+
+ if (!inst.container)
+ inst.container = "c4-graph" + index;
+
+ inst_fetch_data (inst);
+} /* }}} json_graph_update */
+