Allow route cache reading to continue if files missing

[spider.git] / perl / Route / User.pm

diff --git a/perl/Route/User.pm b/perl/Route/User.pm
index 274b26fee0e45fde0ed1a82a7fec8e931964bb18..d9d5249c459d21c5ade0bd143134af3657b49efe 100644 (file)
--- a/perl/Route/User.pm
+++ b/perl/Route/User.pm
@@ -3,55 +3,166 @@
 #
 # Copyright (c) 2001 Dirk Koopman G1TLH
 #
-# $Id$
+#
 # 
 
 package Route::User;
 
 use DXDebug;
 use Route;
+use DXUtil;
+use DXJSON;
+use Time::HiRes qw(gettimeofday);
 
 use strict;
 
-use vars qw(%list %valid @ISA);
+use vars qw(%list %valid @ISA $max $filterdef);
 @ISA = qw(Route);
 
-%valid = (
-                 node => '0,Node Calls,parray',
-);
-
+$filterdef = $Route::filterdef;
 %list = ();
+$max = 0;
+
+our $cachefn = localdata('route_user_cache');
+
+sub count
+{
+       my $n = scalar(keys %list);
+       $max = $n if $n > $max;
+       return $n;
+}
+
+sub max
+{
+       count();
+       return $max;
+}
 
 sub new
 {
        my $pkg = shift;
        my $call = uc shift;
+       my $ncall = uc shift;
+       my $flags = shift;
+       my $ip = shift;
+
        confess "already have $call in $pkg" if $list{$call};
        
        my $self = $pkg->SUPER::new($call);
-       $self->{node} = [ ];
+       $self->{parent} = [ $ncall ];
+       $self->{flags} = $flags || Route::here(1);
+       $self->{ip} = $ip if defined $ip;
        $list{$call} = $self;
-       
+       dbg("CLUSTER: user $call added") if isdbg('cluster');
+
        return $self;
 }
 
+sub get_all
+{
+       return values %list;
+}
+
+sub del
+{
+       my $self = shift;
+       my $pref = shift;
+       my $call = $self->{call};
+       $self->delparent($pref);
+       unless (@{$self->{parent}}) {
+               delete $list{$call};
+               dbg("CLUSTER: user $call deleted") if isdbg('cluster');
+               return $self;
+       }
+       return undef;
+}
+
 sub get
 {
        my $call = shift;
        $call = shift if ref $call;
-       return $list{uc $call};
+       my $ref = $list{uc $call};
+       dbg("Failed to get User $call" ) if !$ref && isdbg('routerr');
+       return $ref;
 }
 
-sub addnode
+sub addparent
 {
        my $self = shift;
-    $self->_addlist('node', @_);
+    return $self->_addlist('parent', @_);
 }
 
-sub delnode
+sub delparent
 {
        my $self = shift;
-    $self->_dellist('node', @_);
+    return $self->_dellist('parent', @_);
+}
+
+sub TO_JSON { return { %{ shift() } }; }
+
+sub write_cache
+{
+       my $json = DXJSON->new;
+       $json->canonical(isdbg('routecache'));
+       
+       my $ta = [ gettimeofday ];
+       my @s;
+       eval {
+               while (my ($k, $v) = each  %list) {
+                   push @s, "$k:" . $json->encode($v) . "\n";
+           }
+       };
+       if (!$@ && @s) {
+               my $fh = IO::File->new(">$cachefn") or carp("writing $cachefn $!");
+               print $fh $_ for (sort @s);
+               $fh->close;
+       } else {
+               dbg("Route::User::write_cache error '$@'");
+               return;
+       }
+       my $diff = _diffms($ta);
+       dbg("Route::User::write_cache time to write: $diff mS");
+}
+
+sub read_cache
+{
+       my $json = DXJSON->new;
+       $json->canonical(isdbg('routecache'));
+       
+       my $ta = [ gettimeofday ];
+       my $count;
+       
+       my $fh = IO::File->new("$cachefn") or carp("reading $cachefn $!");
+       while (my $l = <$fh>) {
+               chomp $l;
+               my ($k, $v) = split /:/, $l, 2;
+               $list{$k} = bless $json->decode($v) or carp("json error decoding '$v'");
+               ++$count;
+       }
+       $fh->close if $fh;
+
+       my $diff = _diffms($ta);
+       dbg("Route::User::read_cache time to read $count records from $cachefn : $diff mS");
+}
+
+#
+# generic AUTOLOAD for accessors
+#
+
+sub AUTOLOAD
+{
+       no strict;
+       my ($pkg,$name) = $AUTOLOAD =~ /^(.*)::(\w+)$/;
+       return if $name eq 'DESTROY';
+  
+       confess "Non-existant field '$AUTOLOAD'" unless $valid{$name} || $Route::valid{$name};
+
+       # this clever line of code creates a subroutine which takes over from autoload
+       # from OO Perl - Conway
+       *$AUTOLOAD = sub {$_[0]->{$name} = $_[1] if @_ > 1; return $_[0]->{$name}};
+       goto &$AUTOLOAD;        
+#      *{"${pkg}::$name"} = sub {$_[0]->{$name} = $_[1] if @_ > 1; return $_[0]->{$name}};
+#      goto &{"${pkg}::$name"};        
 }
 
 1;