- Add new function Net::Z3950::ZOOM::query_ccl2rpn(), for

[ZOOM-Perl-moved-to-github.git] / lib / ZOOM.pm

diff --git a/lib/ZOOM.pm b/lib/ZOOM.pm
index 60007af..f553382 100644 (file)
--- a/lib/ZOOM.pm
+++ b/lib/ZOOM.pm
@@ -1,4 +1,4 @@
-# $Id: ZOOM.pm,v 1.27 2006-03-09 12:57:19 mike Exp $
+# $Id: ZOOM.pm,v 1.34 2006-06-13 16:44:21 mike Exp $
 
 use strict;
 use warnings;
@@ -41,6 +41,8 @@ sub UNSUPPORTED_QUERY { Net::Z3950::ZOOM::ERROR_UNSUPPORTED_QUERY }
 sub INVALID_QUERY { Net::Z3950::ZOOM::ERROR_INVALID_QUERY }
 sub CQL_PARSE { Net::Z3950::ZOOM::ERROR_CQL_PARSE }
 sub CQL_TRANSFORM { Net::Z3950::ZOOM::ERROR_CQL_TRANSFORM }
+sub CCL_CONFIG { Net::Z3950::ZOOM::ERROR_CCL_CONFIG }
+sub CCL_PARSE { Net::Z3950::ZOOM::ERROR_CCL_PARSE }
 # The following are added specifically for this OO interface
 sub CREATE_QUERY { 20001 }
 sub QUERY_CQL { 20002 }
@@ -63,6 +65,7 @@ sub SEND_APDU { Net::Z3950::ZOOM::EVENT_SEND_APDU }
 sub RECV_APDU { Net::Z3950::ZOOM::EVENT_RECV_APDU }
 sub RECV_RECORD { Net::Z3950::ZOOM::EVENT_RECV_RECORD }
 sub RECV_SEARCH { Net::Z3950::ZOOM::EVENT_RECV_SEARCH }
+sub ZEND { Net::Z3950::ZOOM::EVENT_END }
 
 # ----------------------------------------------------------------------------
 
@@ -93,6 +96,17 @@ sub diag_str {
     return Net::Z3950::ZOOM::diag_str($code);
 }
 
+sub event_str {
+    return Net::Z3950::ZOOM::event_str(@_);
+}
+
+sub event {
+    my($connsref) = @_;
+
+    my @_connsref = map { $_->_conn() } @$connsref;
+    return Net::Z3950::ZOOM::event(\@_connsref);
+}
+
 sub _oops {
     my($code, $addinfo, $diagset) = @_;
 
@@ -276,27 +290,29 @@ sub new {
     my $class = shift();
     my($host, $port, @options) = @_;
 
-    my $_conn = Net::Z3950::ZOOM::connection_new($host, $port || 0);
-    my $conn = bless {
-       host => $host,
-       port => $port,
-       _conn => $_conn,
-    };
-
+    my $_opts = Net::Z3950::ZOOM::options_create();
     while (@options >= 2) {
        my $key = shift(@options);
        my $val = shift(@options);
-       $conn->option($key, $val);
+       Net::Z3950::ZOOM::options_set($_opts, $key, $val);
     }
 
     die "Odd number of options specified"
        if @options;
 
+    my $_conn = Net::Z3950::ZOOM::connection_create($_opts);
+    Net::Z3950::ZOOM::connection_connect($_conn, $host, $port || 0);
+    my $conn = bless {
+       host => $host,
+       port => $port,
+       _conn => $_conn,
+    };
+
     $conn->_check();
     return $conn;
 }
 
-# PRIVATE to this class and to ZOOM::Query::CQL2RPN::new()
+# PRIVATE to this class, to ZOOM::event() and to ZOOM::Query::CQL2RPN::new()
 sub _conn {
     my $this = shift();
 
@@ -443,6 +459,12 @@ sub package {
     return _new ZOOM::Package($this, $options, $_p);
 }
 
+sub last_event {
+    my $this = shift();
+
+    return Net::Z3950::ZOOM::connection_last_event($this->_conn());
+}
+
 sub destroy {
     my $this = shift();
 
@@ -524,6 +546,26 @@ sub new {
 }
 
 
+# It's distressing how very similar this is to CQL2RPN
+package ZOOM::Query::CCL2RPN;
+our @ISA = qw(ZOOM::Query);
+
+sub new {
+    my $class = shift();
+    my($string, $conn) = @_;
+
+    my $q = Net::Z3950::ZOOM::query_create()
+       or ZOOM::_oops(ZOOM::Error::CREATE_QUERY);
+    # check() throws the exception we want; but we only want it on failure!
+    Net::Z3950::ZOOM::query_ccl2rpn($q, $string, $conn->_conn()) == 0
+       or $conn->_check();
+
+    return bless {
+       _query => $q,
+    }, $class;
+}
+
+
 package ZOOM::Query::PQF;
 our @ISA = qw(ZOOM::Query);
 
@@ -711,22 +753,27 @@ sub _rec {
 sub render {
     my $this = shift();
 
-    my $len = 0;
-    my $string = Net::Z3950::ZOOM::record_get($this->_rec(), "render", $len);
-    # I don't think we need '$len' at all.  ### Probably the Perl-to-C
-    # glue code should use the value of `len' as well as the opaque
-    # data-pointer returned, to ensure that the SV contains all of the
-    # returned data and does not stop at the first NUL character in
-    # binary data.  Carefully check the ZOOM_record_get() documentation.
-    return $string;
+    return $this->get("render", @_);
 }
 
 sub raw {
     my $this = shift();
 
+    return $this->get("raw", @_);
+}
+
+sub get {
+    my $this = shift();
+    my($type, $args) = @_;
+
+    $type = "$type;$args" if defined $args;
     my $len = 0;
-    my $string = Net::Z3950::ZOOM::record_get($this->_rec(), "raw", $len);
-    # See comment about $len in render()
+    my $string = Net::Z3950::ZOOM::record_get($this->_rec(), $type, $len);
+    # I don't think we need '$len' at all.  ### Probably the Perl-to-C
+    # glue code should use the value of `len' as well as the opaque
+    # data-pointer returned, to ensure that the SV contains all of the
+    # returned data and does not stop at the first NUL character in
+    # binary data.  Carefully check the ZOOM_record_get() documentation.
     return $string;
 }