Add getDSbyName

1 files changed, 12 insertions, 0 deletions

diff --git a/src/lib/rrdFile.js b/src/lib/rrdFile.js
index f592643..aee1112 100644
--- a/src/lib/rrdFile.js
+++ b/src/lib/rrdFile.js
@@ -304,6 +304,15 @@ RRDHeader.prototype.getDS = function(idx) {
     throw RangeError("DS idx ("+ idx +") out of range [0-" + this.ds_cnt +").");

   }	

 }

+RRDHeader.prototype.getDSbyName = function(name) {

+  for (var idx=0; idx<this.ds_cnt; idx++) {

+    var ds=this.getDS(idx);

+    var ds_name=ds.getName()

+    if (ds_name==name)

+      return idx;

+  }

+  return undefined;

+}

 

 RRDHeader.prototype.getNrRRAs = function() {

   return this.rra_cnt;

@@ -346,6 +355,9 @@ function RRDFile(bf) {
   this.getDS = function(idx) {

     return this.rrd_header.getDS(idx);

   }

+  this.getDSbyName = function(name) {

+    return this.rrd_header.getDSbyName(name);

+  }

 

   this.getNrRRAs = function() {

     return this.rrd_header.getNrRRAs();