1 files changed, 118 insertions, 0 deletions
diff --git a/lib/Log/Log4perl/Util.pm b/lib/Log/Log4perl/Util.pm
new file mode 100644
index 0000000..8bb3040
--- /dev/null
+++ b/lib/Log/Log4perl/Util.pm
@@ -0,0 +1,118 @@
+package Log::Log4perl::Util;
+
+require Exporter;
+our @EXPORT_OK = qw( params_check );
+our @ISA       = qw( Exporter );
+
+use File::Spec;
+
+###########################################
+sub params_check {
+###########################################
+    my( $hash, $required, $optional ) = @_;
+
+    my $pkg       = caller();
+    my %hash_copy = %$hash;
+
+    if( defined $required ) {
+        for my $p ( @$required ) {
+            if( !exists $hash->{ $p } or
+                !defined $hash->{ $p } ) {
+                die "$pkg: Required parameter $p missing.";
+            }
+            delete $hash_copy{ $p };
+        }
+    }
+
+    if( defined $optional ) {
+        for my $p ( @$optional ) {
+            delete $hash_copy{ $p };
+        }
+        if( scalar keys %hash_copy ) {
+            die "$pkg: Unknown parameter: ", join( ",", keys %hash_copy );
+        }
+    }
+}
+
+##################################################
+sub module_available {  # Check if a module is available
+##################################################
+    my($full_name) = @_;
+
+      # Weird cases like "strict;" (including the semicolon) would 
+      # succeed with the eval below, so check those up front. 
+      # I can't believe Perl doesn't have a proper way to check if a 
+      # module is available or not!
+    return 0 if $full_name =~ /[^\w:]/;
+
+    local $SIG{__DIE__} = sub {};
+
+    eval "require $full_name";
+
+    if($@) {
+        return 0;
+    }
+
+    return 1;
+}
+
+##################################################
+sub tmpfile_name {  # File::Temp without the bells and whistles
+##################################################
+
+    my $name = File::Spec->catfile(File::Spec->tmpdir(), 
+                              'l4p-tmpfile-' . 
+                              "$$-" .
+                              int(rand(9999999)));
+
+        # Some crazy versions of File::Spec use backslashes on Win32
+    $name =~ s#\\#/#g;
+    return $name;
+}
+
+1;
+
+__END__
+
+=encoding utf8
+
+=head1 NAME
+
+Log::Log4perl::Util - Internal utility functions
+
+=head1 DESCRIPTION
+
+Only internal functions here. Don't peek.
+
+=head1 LICENSE
+
+Copyright 2002-2013 by Mike Schilli E<lt>m@perlmeister.comE<gt> 
+and Kevin Goess E<lt>cpan@goess.orgE<gt>.
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself. 
+
+=head1 AUTHOR
+
+Please contribute patches to the project on Github:
+
+    http://github.com/mschilli/log4perl
+
+Send bug reports or requests for enhancements to the authors via our
+
+MAILING LIST (questions, bug reports, suggestions/patches): 
+log4perl-devel@lists.sourceforge.net
+
+Authors (please contact them via the list above, not directly):
+Mike Schilli <m@perlmeister.com>,
+Kevin Goess <cpan@goess.org>
+
+Contributors (in alphabetical order):
+Ateeq Altaf, Cory Bennett, Jens Berthold, Jeremy Bopp, Hutton
+Davidson, Chris R. Donnelly, Matisse Enzer, Hugh Esco, Anthony
+Foiani, James FitzGibbon, Carl Franks, Dennis Gregorovic, Andy
+Grundman, Paul Harrington, Alexander Hartmaier  David Hull, 
+Robert Jacobson, Jason Kohles, Jeff Macdonald, Markus Peter, 
+Brett Rann, Peter Rabbitson, Erik Selberg, Aaron Straup Cope, 
+Lars Thegler, David Viner, Mac Yang.
+