X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=lib%2FZOOM.pm;h=29695a90b8d6d926e68cf4ce056a5ccc7b79f465;hb=1d52423ae8c6e5d79dae1e285fba9bccd442c7ce;hp=62686750aa2ccb50824b9ed079313fcbcc0ed0d0;hpb=bc6a85df5e4f957b173611eae92d0a05abd0662a;p=ZOOM-Perl-moved-to-github.git

diff --git a/lib/ZOOM.pm b/lib/ZOOM.pm
index 6268675..29695a9 100644
--- a/lib/ZOOM.pm
+++ b/lib/ZOOM.pm
@@ -1,4 +1,4 @@
-# $Id: ZOOM.pm,v 1.20 2005-11-16 17:26:23 mike Exp $
+# $Id: ZOOM.pm,v 1.31 2006-04-07 12:58:19 mike Exp $
 
 use strict;
 use warnings;
@@ -7,7 +7,6 @@ use Net::Z3950::ZOOM;
 
 package ZOOM;
 
-
 # Member naming convention: hash-element names which begin with an
 # underscore represent underlying ZOOM-C object descriptors; those
 # which lack them represent Perl's ZOOM objects.  (The same convention
@@ -40,6 +39,8 @@ sub TIMEOUT { Net::Z3950::ZOOM::ERROR_TIMEOUT }
 sub UNSUPPORTED_PROTOCOL { Net::Z3950::ZOOM::ERROR_UNSUPPORTED_PROTOCOL }
 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 }
 # The following are added specifically for this OO interface
 sub CREATE_QUERY { 20001 }
 sub QUERY_CQL { 20002 }
@@ -48,6 +49,7 @@ sub SORTBY { 20004 }
 sub CLONE { 20005 }
 sub PACKAGE { 20006 }
 sub SCANTERM { 20007 }
+sub LOGLEVEL { 20008 }
 
 # The "Event" package contains constants returned by last_event()
 package ZOOM::Event;
@@ -61,6 +63,7 @@ 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 }
 
 # ----------------------------------------------------------------------------
 
@@ -84,11 +87,26 @@ sub diag_str {
 	return "can't create package";
     } elsif ($code == ZOOM::Error::SCANTERM) {
 	return "can't retrieve term from scan-set";
+    } elsif ($code == ZOOM::Error::LOGLEVEL) {
+	return "unregistered log-level";
     }
 
     return Net::Z3950::ZOOM::diag_str($code);
 }
 
+### Undocumented
+sub event_str {
+    return Net::Z3950::ZOOM::event_str(@_);
+}
+
+### Undocumented
+sub event {
+    my($connsref) = @_;
+
+    my @_connsref = map { $_->_conn() } @$connsref;
+    return Net::Z3950::ZOOM::event(\@_connsref);
+}
+
 sub _oops {
     my($code, $addinfo, $diagset) = @_;
 
@@ -135,6 +153,7 @@ sub render {
     my $this = shift();
     my $res = "ZOOM error " . $this->code() . ' "' . $this->message() . '"';
     $res .= ' (addinfo: "' . $this->addinfo() . '")' if $this->addinfo();
+    $res .= " from diag-set '" . $this->diagset() . "'" if $this->diagset();
     return $res;
 }
 
@@ -269,7 +288,7 @@ package ZOOM::Connection;
 
 sub new {
     my $class = shift();
-    my($host, $port) = @_;
+    my($host, $port, @options) = @_;
 
     my $_conn = Net::Z3950::ZOOM::connection_new($host, $port || 0);
     my $conn = bless {
@@ -277,11 +296,21 @@ sub new {
 	port => $port,
 	_conn => $_conn,
     };
+
+    while (@options >= 2) {
+	my $key = shift(@options);
+	my $val = shift(@options);
+	$conn->option($key, $val);
+    }
+
+    die "Odd number of options specified"
+	if @options;
+
     $conn->_check();
     return $conn;
 }
 
-# PRIVATE to this class
+# PRIVATE to this class, to ZOOM::event() and to ZOOM::Query::CQL2RPN::new()
 sub _conn {
     my $this = shift();
 
@@ -347,6 +376,7 @@ sub connect {
     my $this = shift();
     my($host, $port) = @_;
 
+    $port = 0 if !defined $port;
     Net::Z3950::ZOOM::connection_connect($this->_conn(), $host, $port);
     $this->_check();
     # No return value
@@ -396,7 +426,7 @@ sub search_pqf {
     return _new ZOOM::ResultSet($this, $pqf, $_rs);
 }
 
-sub scan {
+sub scan_pqf {
     my $this = shift();
     my($startterm) = @_;
 
@@ -405,6 +435,16 @@ sub scan {
     return _new ZOOM::ScanSet($this, $startterm, $_ss);
 }
 
+sub scan {
+    my $this = shift();
+    my($query) = @_;
+
+    my $_ss = Net::Z3950::ZOOM::connection_scan1($this->_conn(),
+						 $query->_query());
+    $this->_check();
+    return _new ZOOM::ScanSet($this, $query, $_ss);
+}
+
 sub package {
     my $this = shift();
     my($options) = @_;
@@ -417,6 +457,13 @@ sub package {
     return _new ZOOM::Package($this, $options, $_p);
 }
 
+### Undocumented
+sub last_event {
+    my $this = shift();
+
+    return Net::Z3950::ZOOM::connection_last_event($this->_conn());
+}
+
 sub destroy {
     my $this = shift();
 
@@ -479,6 +526,25 @@ sub new {
 }
 
 
+package ZOOM::Query::CQL2RPN;
+our @ISA = qw(ZOOM::Query);
+
+sub new {
+    my $class = shift();
+    my($string, $conn) = @_;
+
+    my $q = Net::Z3950::ZOOM::query_create()
+	or ZOOM::_oops(ZOOM::Error::CREATE_QUERY);
+    # check() throws the exception we want; but we only want it on failure!
+    Net::Z3950::ZOOM::query_cql2rpn($q, $string, $conn->_conn()) == 0
+	or $conn->_check();
+
+    return bless {
+	_query => $q,
+    }, $class;
+}
+
+
 package ZOOM::Query::PQF;
 our @ISA = qw(ZOOM::Query);
 
@@ -577,6 +643,7 @@ sub record_immediate {
     my $_rec = Net::Z3950::ZOOM::resultset_record_immediate($this->_rs(),
 							    $which);
     $this->{conn}->_check();
+    # The record might legitimately not be there yet
     return undef if !defined $_rec;
 
     return ZOOM::Record->_new($this, $which, $_rec);
@@ -665,22 +732,27 @@ 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;
 }
 
@@ -718,7 +790,12 @@ sub _new {
 
     return bless {
 	conn => $conn,
-	startterm => $startterm,
+	startterm => $startterm,# This is not currently used, which is
+				# just as well since it could be
+				# either a string (when the SS is
+				# created with scan()) or a
+				# ZOOM::Query object (when it's
+				# created with scan1())
 	_ss => $_ss,
     }, $class;
 }
@@ -848,4 +925,41 @@ sub destroy {
 }
 
 
+# There follows trivial support for YAZ logging.  This is wired out
+# into the Net::Z3950::ZOOM package, and we here provide wrapper
+# functions -- nothing more than aliases, really -- in the ZOOM::Log
+# package.  There really is no point in inventing an OO interface.
+#
+# Passing @_ directly to the underlying Net::Z3950::ZOOM::* functions
+# doesn't work, for reasons that I can't begin to fathom, and that
+# don't particularly interest me.  Unpacking into scalars and passing
+# those _does_ work, so that's what we do.
+
+package ZOOM::Log;
+
+sub mask_str      { my($a) = @_; Net::Z3950::ZOOM::yaz_log_mask_str($a); }
+sub module_level  { my($a) = @_; Net::Z3950::ZOOM::yaz_log_module_level($a); }
+sub init          { my($a, $b, $c) = @_;
+		    Net::Z3950::ZOOM::yaz_log_init($a, $b, $c) }
+sub init_file     { my($a) = @_; Net::Z3950::ZOOM::yaz_log_init_file($a) }
+sub init_level    { my($a) = @_; Net::Z3950::ZOOM::yaz_log_init_level($a) }
+sub init_prefix   { my($a) = @_; Net::Z3950::ZOOM::yaz_log_init_prefix($a) }
+sub time_format   { my($a) = @_; Net::Z3950::ZOOM::yaz_log_time_format($a) }
+sub init_max_size { my($a) = @_; Net::Z3950::ZOOM::yaz_log_init_max_size($a) }
+
+sub log {
+    my($level, @message) = @_;
+
+    if ($level !~ /^(0x)?\d+$/) {
+	# Assuming its log-level name, we look it up.
+	my $num = module_level($level);
+	ZOOM::_oops(ZOOM::Error::LOGLEVEL, $level)
+	    if $num == 0;
+	$level = $num;
+    }
+
+    Net::Z3950::ZOOM::yaz_log($level, join("", @message));
+}
+
+
 1;