X-Git-Url: http://git.indexdata.com/?p=irspy-moved-to-github.git;a=blobdiff_plain;f=lib%2FZOOM%2FIRSpy%2FUtils.pm;h=dfe4e9979121a6a526dc77f628d8b3447e34d1f9;hp=0b1f64685261f4453efaf375b3b247e6b099ebbc;hb=87eef33eee0a92bf11aa4d4fcc061526f9176a50;hpb=65c6bc9a43d8ebf8eba1efb4993e19f7920c48b1

diff --git a/lib/ZOOM/IRSpy/Utils.pm b/lib/ZOOM/IRSpy/Utils.pm
index 0b1f646..dfe4e99 100644
--- a/lib/ZOOM/IRSpy/Utils.pm
+++ b/lib/ZOOM/IRSpy/Utils.pm
@@ -6,6 +6,8 @@ use 5.008;
 use strict;
 use warnings;
 
+use Scalar::Util;
+
 use Exporter 'import';
 our @EXPORT_OK = qw(utf8param
 		    isodate
@@ -18,7 +20,9 @@ our @EXPORT_OK = qw(utf8param
 		    irspy_identifier2target
 		    modify_xml_document
 		    bib1_access_point
-		    render_record);
+		    render_record
+		    calc_reliability_string
+		    calc_reliability_stats);
 
 use XML::LibXML;
 use XML::LibXML::XPathContext;
@@ -273,6 +277,11 @@ sub _irspy_identifier2target {
 }
 
 
+# Modifies the XML document for which $xc is an XPath context by
+# inserting or replacing the values specified in the hash %$data.  The
+# keys are fieldnames, which are looked up in the register
+# $fieldsByKey to determine, among other things, what their XPath is.
+
 sub modify_xml_document {
     my($xc, $fieldsByKey, $data) = @_;
 
@@ -770,4 +779,26 @@ sub render_record {
 }
 
 
+sub calc_reliability_string {
+    my($xc) = @_;
+
+    my($nok, $nall, $percent) = calc_reliability_stats($xc);
+    return "[untested]" if $nall == 0;
+    return "$nok/$nall = " . $percent . "%";
+}
+
+
+sub calc_reliability_stats {
+    my($xc) = @_;
+
+    my @allpings = $xc->findnodes("i:status/i:probe");
+    my $nall = @allpings;
+    return (0, 0, 0) if $nall == 0;
+    my @okpings = $xc->findnodes('i:status/i:probe[@ok = "1"]');
+    my $nok = @okpings;
+    my $percent = int(100*$nok/$nall);
+    return ($nok, $nall, $percent);
+}
+
+
 1;