--- trunk/Estraier.pm	2006/01/06 23:29:58	59
+++ trunk/Estraier.pm	2006/01/16 21:34:14	77
@@ -4,7 +4,7 @@
 use strict;
 use warnings;
 
-our $VERSION = '0.01';
+our $VERSION = '0.04_1';
 
 =head1 NAME
 
@@ -12,8 +12,57 @@
 
 =head1 SYNOPSIS
 
-  use Search::Estraier;
-  my $est = new Search::Estraier();
+=head2 Simple indexer
+
+	use Search::Estraier;
+
+	# create and configure node
+	my $node = new Search::Estraier::Node;
+	$node->set_url("http://localhost:1978/node/test");
+	$node->set_auth("admin","admin");
+
+	# create document
+	my $doc = new Search::Estraier::Document;
+
+	# add attributes
+	$doc->add_attr('@uri', "http://estraier.gov/example.txt");
+	$doc->add_attr('@title', "Over the Rainbow");
+
+	# add body text to document
+	$doc->add_text("Somewhere over the rainbow.  Way up high.");
+	$doc->add_text("There's a land that I heard of once in a lullaby.");
+
+	die "error: ", $node->status,"\n" unless ($node->put_doc($doc));
+
+=head2 Simple searcher
+
+	use Search::Estraier;
+
+	# create and configure node
+	my $node = new Search::Estraier::Node;
+	$node->set_url("http://localhost:1978/node/test");
+	$node->set_auth("admin","admin");
+
+	# create condition
+	my $cond = new Search::Estraier::Condition;
+
+	# set search phrase
+	$cond->set_phrase("rainbow AND lullaby");
+
+	my $nres = $node->search($cond, 0);
+	if (defined($nres)) {
+		# for each document in results
+		for my $i ( 0 ... $nres->doc_num - 1 ) {
+			# get result document
+			my $rdoc = $nres->get_doc($i);
+			# display attribte
+			print "URI: ", $rdoc->attr('@uri'),"\n";
+			print "Title: ", $rdoc->attr('@title'),"\n";
+			print $rdoc->snippet,"\n";
+		}
+	} else {
+		die "error: ", $node->status,"\n";
+	}
 
 =head1 DESCRIPTION
 
@@ -25,6 +74,8 @@
 It is implemented as multiple packages which closly resamble Ruby
 implementation. It also includes methods to manage nodes.
 
+There are few examples in C<scripts> directory of this distribution.
+
 =cut
 
 =head1 Inheritable common methods
@@ -205,7 +256,8 @@
 
 sub attr_names {
 	my $self = shift;
-	croak "attr_names return array, not scalar" if (! wantarray);
+	return unless ($self->{attrs});
+	#croak "attr_names return array, not scalar" if (! wantarray);
 	return sort keys %{ $self->{attrs} };
 }
 
@@ -221,8 +273,8 @@
 sub attr {
 	my $self = shift;
 	my $name = shift;
-
-	return $self->{'attrs'}->{ $name };
+	return unless (defined($name) && $self->{attrs});
+	return $self->{attrs}->{ $name };
 }
 
 
@@ -236,8 +288,8 @@
 
 sub texts {
 	my $self = shift;
-	confess "texts return array, not scalar" if (! wantarray);
-	return @{ $self->{dtexts} };
+	#confess "texts return array, not scalar" if (! wantarray);
+	return @{ $self->{dtexts} } if ($self->{dtexts});
 }
 
 
@@ -251,7 +303,7 @@
 
 sub cat_texts {
 	my $self = shift;
-	return join(' ',@{ $self->{dtexts} });
+	return join(' ',@{ $self->{dtexts} }) if ($self->{dtexts});
 }
 
 
@@ -460,7 +512,7 @@
 sub attrs {
 	my $self = shift;
 	#croak "attrs return array, not scalar" if (! wantarray);
-	return @{ $self->{attrs} };
+	return @{ $self->{attrs} } if ($self->{attrs});
 }
 
 
@@ -524,9 +576,7 @@
 	my $self = {@_};
 	bless($self, $class);
 
-	foreach my $f (qw/uri attrs snippet keywords/) {
-		croak "missing $f for ResultDocument" unless defined($self->{$f});
-	}
+	croak "missing uri for ResultDocument" unless defined($self->{uri});
 
 	$self ? return $self : return undef;
 }
@@ -700,6 +750,10 @@
 
   my $node = new Search::HyperEstraier::Node;
 
+or optionally with C<url> as parametar
+
+  my $node = new Search::HyperEstraier::Node( 'http://localhost:1978/node/test' );
+
 =cut
 
 sub new {
@@ -717,10 +771,14 @@
 	};
 	bless($self, $class);
 
-	my $args = {@_};
+	if ($#_ == 0) {
+		$self->{url} = shift;
+	} else {
+		my $args = {@_};
 
-	$self->{debug} = $args->{debug};
-	warn "## Node debug on\n" if ($self->{debug});
+		$self->{debug} = $args->{debug};
+		warn "## Node debug on\n" if ($self->{debug});
+	}
 
 	$self ? return $self : return undef;
 }
@@ -1176,7 +1234,7 @@
 
 	my $rv = $self->shuttle_url( $self->{url} . '/search',
 		'application/x-www-form-urlencoded',
-		$self->cond_to_query( $cond ),
+		$self->cond_to_query( $cond, $depth ),
 		\$resbody,
 	);
 	return if ($rv != 200);
@@ -1270,7 +1328,7 @@
 
 Return URI encoded string generated from Search::Estraier::Condition
 
-  my $args = $node->cond_to_query( $cond );
+  my $args = $node->cond_to_query( $cond, $depth );
 
 =cut
 
@@ -1279,6 +1337,7 @@
 
 	my $cond = shift || return;
 	croak "condition must be Search::Estraier::Condition, not '$cond->isa'" unless ($cond->isa('Search::Estraier::Condition'));
+	my $depth = shift;
 
 	my @args;
 
@@ -1288,7 +1347,7 @@
 
 	if (my @attrs = $cond->attrs) {
 		for my $i ( 0 .. $#attrs ) {
-			push @args,'attr' . ($i+1) . '=' . uri_escape( $attrs[$i] );
+			push @args,'attr' . ($i+1) . '=' . uri_escape( $attrs[$i] ) if ($attrs[$i]);
 		}
 	}
 
@@ -1306,7 +1365,7 @@
 		push @args, 'options=' . $options;
 	}
 
-	push @args, 'depth=' . $self->{depth} if ($self->{depth});
+	push @args, 'depth=' . $depth if ($depth);
 	push @args, 'wwidth=' . $self->{wwidth};
 	push @args, 'hwidth=' . $self->{hwidth};
 	push @args, 'awidth=' . $self->{awidth};
@@ -1317,7 +1376,7 @@
 
 =head2 shuttle_url
 
-This is method which uses C<IO::Socket::INET> to communicate with Hyper Estraier node
+This is method which uses C<LWP::UserAgent> to communicate with Hyper Estraier node
 master.
 
   my $rv = shuttle_url( $url, $content_type, $req_body, \$resbody );
@@ -1359,7 +1418,7 @@
 
 	$req->headers->header( 'Host' => $url->host . ":" . $url->port );
 	$req->headers->header( 'Connection', 'close' );
-	$req->headers->header( 'Authorization', 'Basic ' . $self->{auth} );
+	$req->headers->header( 'Authorization', 'Basic ' . $self->{auth} ) if ($self->{auth});
 	$req->content_type( $content_type );
 
 	warn $req->headers->as_string,"\n" if ($self->{debug});
@@ -1373,10 +1432,10 @@
 
 	warn "## response status: ",$res->status_line,"\n" if ($self->{debug});
 
-	return -1 if (! $res->is_success);
-
 	($self->{status}, $self->{status_message}) = split(/\s+/, $res->status_line, 2);
 
+	return -1 if (! $res->is_success);
+
 	$$resbody .= $res->content;
 
 	warn "## response body:\n$$resbody\n" if ($resbody && $self->{debug});
@@ -1476,7 +1535,7 @@
 	$reqbody .= '&credit=' . $credit if ($credit > 0);
 
 	$self->shuttle_url( $self->{url} . '/_set_link',
-		'text/plain',
+		'application/x-www-form-urlencoded',
 		$reqbody,
 		undef
 	) == 200;