[MON-21523] Plugin mode not-so-dummy - Add min and max duration to simulate plugin execution time (#4674)

src/apps/centreon/local/mode/notsodummy.pm

@@ -24,6 +24,7 @@ use base qw(centreon::plugins::mode);
 
 use strict;
 use warnings;
+use Time::HiRes;
 use centreon::plugins::statefile;
 use Digest::MD5 qw(md5_hex);
 
@@ -46,6 +47,8 @@ sub new {
         "show-sequence"             => { name => 'show_sequence' },
         "show-index"                => { name => 'show_index' },
         "restart-sequence"          => { name => 'restart_sequence' },
+        "min-duration:s"            => { name => 'min_duration' },
+        "max-duration:s"            => { name => 'max_duration' },
     });
 
     $self->{cache} = centreon::plugins::statefile->new(%options);
@@ -101,6 +104,31 @@ sub check_options {
         $self->{output}->option_exit();
     }
 
+    if (defined($self->{option_results}->{min_duration})) {
+        if (!defined($self->{option_results}->{max_duration}) || $self->{option_results}->{max_duration} eq '') {
+            $self->{output}->add_option_msg(short_msg => "Need to specify --max-duration option if --min_duration is set.");
+            $self->{output}->option_exit();
+        }
+        if ($self->{option_results}->{min_duration} !~ /^[0-9]*\.?[0-9]*$/) {
+            $self->{output}->add_option_msg(short_msg => "--min-duration should be a number.");
+            $self->{output}->option_exit();
+        }
+    }
+    if (defined($self->{option_results}->{max_duration})){
+        if (!defined($self->{option_results}->{min_duration}) || $self->{option_results}->{min_duration} eq '') {
+            $self->{output}->add_option_msg(short_msg => "Need to specify --min-duration option if --max_duration is set.");
+            $self->{output}->option_exit();
+        }
+        if ($self-> {option_results}->{max_duration} !~ /^[0-9]*\.?[0-9]*$/){
+            $self->{output}->add_option_msg(short_msg => "--max-duration should be a number.");
+            $self->{output}->option_exit();
+        }
+        if ($self-> {option_results}->{max_duration} <= $self->{option_results}->{min_duration} ){
+            $self->{output}->add_option_msg(short_msg => "--max-duration should be higher than min-duration.");
+            $self->{output}->option_exit();
+        }
+    }
+    
     $self->{cache}->check_options(option_results => $self->{option_results});
 }
 
@@ -154,6 +182,13 @@ sub get_sequence_output {
 sub run {
     my ($self, %options) = @_;
 
+    # Adding plugin simulated duration
+    # rand(n) returns a random number between 0 and n value is exclude.
+    if (defined($self->{option_results}->{min_duration}) && defined($self->{option_results}->{max_duration})) {
+        my $sleep_duration = $self->{option_results}->{min_duration} + rand($self->{option_results}->{max_duration} - $self->{option_results}->{min_duration});
+        Time::HiRes::sleep($sleep_duration);
+    }
+
     my ($status, $index) = $self->get_next_status(statefile => $self->{cache});
     my $status_label = $status;
     if (defined($self->{option_results}->{host})) {
@@ -220,15 +255,15 @@ to defined the way cache file is managed.
 
 Examples:
 
-perl centreon_plugin.pl --plugin=apps::centreon::local::plugin
+perl centreon_plugins.pl --plugin=apps::centreon::local::plugin
 --mode=not-so-dummy --status-sequence='ok,warning,ok,critical,critical,critical'
 --output='Not so dummy service' --show-sequence --statefile-dir='/tmp'
 
-perl centreon_plugin.pl --plugin=apps::centreon::local::plugin
+perl centreon_plugins.pl --plugin=apps::centreon::local::plugin
 --mode=not-so-dummy --status-sequence='up,down,down' --host
 --output='Not so dummy host'
 
-perl centreon_plugin.pl --plugin=apps::centreon::local::plugin
+perl centreon_plugins.pl --plugin=apps::centreon::local::plugin
 --mode=not-so-dummy --status-sequence='ok,ok,ok' --output='Not so dummy'
 --metrics-count=5 --metrics-name='met.rics' --metrics-values-range='-15:42'
 
@@ -275,6 +310,18 @@ Show the index as a metric (in addition to the defined metrics count).
 
 Restart the sequence from the beginning (ie. reset the sequence in cache file).
 
+=item B<--min-duration>
+
+Min duration thresholds (in seconds) use to set the range used to randomly simulate the execution of a plugin.
+If this option is set, max-duration is mandatory.
+The duration is chosen in the [min,max) range.
+
+=item B<--max-duration>
+
+Max duration thresholds (in seconds) use to set the range used to randomly simulate the execution of a plugin.
+If this option is set, min-duration is mandatory.
+The duration is chosen in the [min,max) range (max is excluded).
+
 =back
 
 =cut