[LON-CAPA-cvs] cvs: loncom(store_expirement) / lond

[albertel]

albertel		Fri Mar  3 23:27:39 2006 EDT

  Modified files:              (Branch: store_expirement)
    /loncom	lond 
  Log:
  - adding put store to expiremental branch, with support for compressed stores
  
  
Index: loncom/lond
diff -u loncom/lond:1.318.2.5 loncom/lond:1.318.2.6
--- loncom/lond:1.318.2.5	Fri Mar  3 17:03:17 2006
+++ loncom/lond	Fri Mar  3 23:27:38 2006
@@ -2,7 +2,7 @@
 # The LearningOnline Network
 # lond "LON Daemon" Server (port "LOND" 5663)
 #
-# $Id: lond,v 1.318.2.5 2006/03/03 22:03:17 albertel Exp $
+# $Id: lond,v 1.318.2.6 2006/03/04 04:27:38 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -61,7 +61,7 @@
 my $lastlog='';
 my $lond_max_wait_time = 13;
 
-my $VERSION='$Revision: 1.318.2.5 $'; #' stupid emacs
+my $VERSION='$Revision: 1.318.2.6 $'; #' stupid emacs
 my $remoteVERSION;
 my $currenthostid="default";
 my $currentdomainid;
@@ -3102,6 +3102,75 @@
 }
 &register_handler("store", \&store_handler, 0, 1, 0);
 
+sub putstore_handler {
+    my ($cmd, $tail, $client) = @_;
+ 
+    my $userinput = "$cmd:$tail";
+
+    my ($udom,$uname,$namespace,$rid,$v,$what) =split(/:/,$tail);
+    if ($namespace ne 'roles') {
+
+	chomp($what);
+	my $hashref  = &tie_user_hash($udom, $uname, $namespace,
+				       &GDBM_WRCREAT(), "C",
+				       "$rid:$what");
+	if ($hashref) {
+	    my $now = time;
+	    my %data = &hash_extract($what);
+	    my @allkeys;
+	    if (exists($hashref->{"$v:compressed:$rid"})) {
+		my %current = &hash_extract($hashref->{"$v:compressed:$rid"});
+		while (my($key,$value) = each(%data)) {
+		    push(@allkeys,$key);
+		    $current{$key} = $value;
+		}
+		$hashref->{"$v:compressed:$rid"}= &hash_to_str(\%current);
+	    } else {
+		while (my($key,$value) = each(%data)) {
+		    push(@allkeys,$key);
+		    $hashref->{"$v:$rid:$key"} = $value;
+		}
+	    }
+	    my $allkeys = join(':',@allkeys);
+	    $hashref->{"$v:keys:$rid"}=$allkeys;
+
+	    if (&untie_user_hash($hashref)) {
+		&Reply($client, "ok\n", $userinput);
+	    } else {
+		&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
+			"while attempting store\n", $userinput);
+	    }
+	} else {
+	    &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ".
+		     "while attempting store\n", $userinput);
+	}
+    } else {
+	&Failure($client, "refused\n", $userinput);
+    }
+
+    return 1;
+}
+&register_handler("putstore", \&putstore_handler, 0, 1, 0);
+
+sub hash_extract {
+    my ($str)=@_;
+    my %hash;
+    foreach my $pair (split(/\&/,$str)) {
+	my ($key,$value)=split(/=/,$pair);
+	$hash{$key}=$value;
+    }
+    return (%hash);
+}
+sub hash_to_str {
+    my ($hash_ref)=@_;
+    my $str;
+    foreach my $key (keys(%$hash_ref)) {
+	$str.=$key.'='.$hash_ref->{$key}.'&';
+    }
+    $str=~s/\&$//;
+    return $str;
+}
+
 #
 #  Dump out all versions of a resource that has key=value pairs associated
 # with it for each version.  These resources are built up via the store