diff options
| author | Igor Sfiligoi <isfiligoi@ucsd.edu> | 2013-11-06 19:48:34 +0000 |
|---|---|---|
| committer | Igor Sfiligoi <isfiligoi@ucsd.edu> | 2013-11-06 19:48:34 +0000 |
| commit | 33a6737df3781d352692b2dccf48896d62cedff7 (patch) | |
| tree | 60725144ab7430b56d095c52f3b5f2112be0fa50 | |
| parent | 22e085c9c8646bb17d9aaca69996dda664f4ff28 (diff) | |
Add rrdFlotSumAsync; similar to rrdFlotAsync, but will use RRDFileSum of the data loaded from the url_list
| -rw-r--r-- | src/lib/rrdFlotAsync.js | 82 |
1 files changed, 80 insertions, 2 deletions
diff --git a/src/lib/rrdFlotAsync.js b/src/lib/rrdFlotAsync.js index b631cbb..654514f 100644 --- a/src/lib/rrdFlotAsync.js +++ b/src/lib/rrdFlotAsync.js @@ -12,7 +12,7 @@ /*
* Local dependencies:
* binaryXHR.js
- * rrdFile.js
+ * rrdFile.js and/or rrdMultiFile.js
* rrdFlot.js
*
* Those modules may have other requirements.
@@ -27,7 +27,7 @@ function rrdFlotAsyncCallback(bf,obj) { return 1;
}
try {
- var i_rrd_data=new RRDFile(bf);
+ i_rrd_data=new RRDFile(bf);
} catch(err) {
alert("File "+obj.url+" is not a valid RRD archive!\n"+err);
}
@@ -73,3 +73,81 @@ rrdFlotAsync.prototype.callback = function() { this.rrd_flot_obj=new rrdFlot(this.html_id, this.rrd_data, this.graph_options, this.ds_graph_options, this.rrdflot_defaults);
};
+
+// ================================================================================================================
+
+/* Internal helper function */
+function rrdFlotSumAsyncCallback(bf,arr) {
+ var obj=arr[0];
+ var idx=arr[1];
+
+ obj.files_loaded++; // increase this even if it fails later on, else we will never finish
+
+ var i_rrd_data=undefined;
+ if (bf.getLength()<1) {
+ alert("File "+obj.url_list[idx]+" is empty (possibly loading failed)! You may get a parial result in the graph.");
+ } else {
+ try {
+ i_rrd_data=new RRDFile(bf);
+ } catch(err) {
+ alert("File "+obj.url_list[idx]+" is not a valid RRD archive! You may get a partial result in the graph.\n"+err);
+ }
+ }
+ if (i_rrd_data!=undefined) {
+ obj.loaded_data[idx]=i_rrd_data;
+ }
+
+ if (obj.files_loaded==obj.files_needed) {
+ obj.callback();
+ }
+}
+
+/*
+ * For further documentation about the arguments
+ * see rrdFlot.js
+ */
+
+/* Use url_list==null if you do not know the urls yet */
+function rrdFlotSumAsync(html_id, url_list, graph_options, ds_graph_options, rrdflot_defaults) {
+ this.html_id=html_id;
+ this.url_list=url_list;
+ this.graph_options=graph_options;
+ this.ds_graph_options=ds_graph_options;
+ this.rrdflot_defaults=rrdflot_defaults;
+
+ this.rrd_flot_obj=null;
+ this.loaded_data=null;
+
+ if (url_list!=null) {
+ this.reload(url_list);
+ }
+}
+
+rrdFlotSumAsync.prototype.reload = function(url_list) {
+ this.files_needed=url_list.length;
+ this.url_list=url_list;
+ delete this.loaded_data;
+ this.loaded_data=[];
+ this.files_loaded=0;
+ for (i in url_list) {
+ try {
+ FetchBinaryURLAsync(url_list[i],rrdFlotSumAsyncCallback,[this,i]);
+ } catch (err) {
+ alert("Failed loading "+url_list[i]+". You may get a partial result in the graph.\n"+err);
+ this.files_needed--;
+ }
+ }
+};
+
+rrdFlotSumAsync.prototype.callback = function() {
+ if (this.rrd_flot_obj!=null) delete this.rrd_flot_obj;
+ var real_data_arr=new Array();
+ for (i in this.loaded_data) {
+ // account for failed loaded urls
+ var el=this.loaded_data[i];
+ if (el!=undefined) real_data_arr.push(el);
+ }
+ var rrd_sum=new RRDFileSum(real_data_arr);
+ this.rrd_flot_obj=new rrdFlot(this.html_id, rrd_sum, this.graph_options, this.ds_graph_options, this.rrdflot_defaults);
+};
+
|