-# $Id: IRSpy.pm,v 1.4 2006-06-21 14:35:03 mike Exp $
+# $Id: IRSpy.pm,v 1.72 2007-02-28 17:36:00 mike Exp $
package ZOOM::IRSpy;
use 5.008;
use strict;
use warnings;
+
+use Data::Dumper; # For debugging only
+use File::Basename;
+use XML::LibXSLT;
+use XML::LibXML;
+use XML::LibXML::XPathContext;
+use ZOOM;
+use Net::Z3950::ZOOM 1.13; # For the ZOOM version-check only
+use ZOOM::IRSpy::Node;
+use ZOOM::IRSpy::Connection;
use ZOOM::IRSpy::Record;
-use ZOOM::Pod;
+use ZOOM::IRSpy::Stats;
+use ZOOM::IRSpy::Utils qw(cql_target);
our @ISA = qw();
our $VERSION = '0.02';
+our $irspy_to_zeerex_xsl = dirname(__FILE__) . '/../../xsl/irspy2zeerex.xsl';
+
+
+# Enumeration for callback functions to return
+package ZOOM::IRSpy::Status;
+sub OK { 29 } # No problems, task is still progressing
+sub TASK_DONE { 18 } # Task is complete, next task should begin
+sub TEST_GOOD { 8 } # Whole test is complete, and succeeded
+sub TEST_BAD { 31 } # Whole test is complete, and failed
+sub TEST_SKIPPED { 12 } # Test couldn't be run
+package ZOOM::IRSpy;
+
=head1 NAME
use ZOOM::IRSpy;
$spy = new ZOOM::IRSpy("target/string/for/irspy/database");
- print $spy->report_status();
+ $spy->targets(@targets);
+ $spy->initialise();
+ $res = $spy->check("Main");
=head1 DESCRIPTION
=cut
-BEGIN { ZOOM::Log::mask_str("irspy") }
+BEGIN {
+ ZOOM::Log::mask_str("irspy");
+ ZOOM::Log::mask_str("irspy_debug");
+ ZOOM::Log::mask_str("irspy_event");
+ ZOOM::Log::mask_str("irspy_unhandled");
+ ZOOM::Log::mask_str("irspy_test");
+ ZOOM::Log::mask_str("irspy_task");
+}
sub new {
my $class = shift();
- my($dbname) = @_;
+ my($dbname, $user, $password) = @_;
- my $conn = new ZOOM::Connection($dbname)
+ my @options;
+ push @options, (user => $user, password => $password)
+ if defined $user;
+
+ my $conn = new ZOOM::Connection($dbname, 0, @options)
or die "$0: can't connection to IRSpy database 'dbname'";
+ my $xslt = new XML::LibXSLT;
+
+ $xslt->register_function($ZOOM::IRSpy::Utils::IRSPY_NS, 'strcmp',
+ \&ZOOM::IRSpy::Utils::xslt_strcmp);
+
+ my $libxml = new XML::LibXML;
+ my $xsl_doc = $libxml->parse_file($irspy_to_zeerex_xsl);
+ my $irspy_to_zeerex_style = $xslt->parse_stylesheet($xsl_doc);
+
my $this = bless {
conn => $conn,
allrecords => 1, # unless overridden by targets()
query => undef, # filled in later
targets => undef, # filled in later
- target2record => undef, # filled in later
- pod => undef, # filled in later
+ connections => undef, # filled in later
+ libxml => $libxml,
+ irspy_to_zeerex_style => $irspy_to_zeerex_style,
+ tests => [], # stack of tests currently being executed
}, $class;
$this->log("irspy", "starting up with database '$dbname'");
#
sub targets {
my $this = shift();
- my($targetList) = @_;
+ my(@targets) = @_;
- $this->log("irspy", "setting explicit list of targets '$targetList'");
+ $this->log("irspy", "setting explicit list of targets ",
+ join(", ", map { "'$_'" } @targets));
$this->{allrecords} = 0;
- my @targets = split /\s+/, $targetList;
my @qlist;
foreach my $target (@targets) {
- my($host, $port, $db) = ($target =~ /(.*?):(.*?)\/(.*)/);
- if (!defined $host) {
- $port = 210;
- ($host, $db) = ($target =~ /(.*?)\/(.*)/);
- $this->log("irspy", "rewrote '$target' to '$host:$port/$db'");
- $target = "$host:$port/$db";
+ my($host, $port, $db, $newtarget) = _parse_target_string($target);
+ if ($newtarget ne $target) {
+ $this->log("irspy_debug", "rewriting '$target' to '$newtarget'");
+ $target = $newtarget; # This is written through the ref
}
- die "invalid target string '$target'"
- if !defined $host;
- push @qlist,
- (qq[(host = "$host" and port = "$port" and path="$db")]);
+ push @qlist, cql_target($host, $port, $db);
}
$this->{targets} = \@targets;
}
+sub find_targets {
+ my $this = shift();
+ my($query) = @_;
+
+ $this->{allrecords} = 0;
+ $this->{query} = $query;
+}
+
+
+# Also used by ZOOM::IRSpy::Record
+sub _parse_target_string {
+ my($target) = @_;
+
+ my($host, $port, $db) = ($target =~ /(.*?):(.*?)\/(.*)/);
+ if (!defined $host) {
+ $port = 210;
+ ($host, $db) = ($target =~ /(.*?)\/(.*)/);
+ $target = "$host:$port/$db";
+ }
+ die "$0: invalid target string '$target'"
+ if !defined $host;
+
+ return ($host, $port, $db, $target);
+}
+
+
# There are two cases.
#
# 1. A specific set of targets is nominated on the command line.
# access point -- not even 1035 "everywhere" -- so instead we
# hack together a search that we know will find all records.
$this->{query} = "port=?*";
- } else {
+ } elsif ($this->{targets}) {
# Prepopulate the target map with nulls so that after we fill
# in what we can from the database query, we know which target
# IDs we need new records for.
}
}
+ $this->log("irspy_debug", "query '", $this->{query}, "'");
my $rs = $this->{conn}->search(new ZOOM::Query::CQL($this->{query}));
+ $this->log("irspy", "'", $this->{query}, "' found ",
+ $rs->size(), " target records");
+ delete $this->{query}; # No longer needed at all
+ my $gatherTargets = !$this->{targets};
foreach my $i (1 .. $rs->size()) {
my $target = _render_record($rs, $i-1, "id");
my $zeerex = _render_record($rs, $i-1, "zeerex");
+ #print STDERR "making '$target' record with '$zeerex'\n";
$target2record{lc($target)} =
- new ZOOM::IRSpy::Record($target, $zeerex);
+ new ZOOM::IRSpy::Record($this, $target, $zeerex);
+ push @{ $this->{targets} }, $target
+ if $gatherTargets;
}
+ # Make records for targets not previously in the database
foreach my $target (keys %target2record) {
my $record = $target2record{$target};
if (!defined $record) {
- $this->log("irspy", "made new record for '$target'");
- $target2record{$target} = new ZOOM::IRSpy::Record($target);
+ $this->log("irspy_debug", "made new record for '$target'");
+ $target2record{$target} = new ZOOM::IRSpy::Record($this, $target);
} else {
- $this->log("irspy", "using existing record for '$target'");
+ $this->log("irspy_debug", "using existing record for '$target'");
}
}
- $this->{target2record} = \%target2record;
- $this->{pod} = new ZOOM::Pod(@{ $this->{targets} });
- delete $this->{targets}; # The information is now in the Pod.
- delete $this->{query}; # Not needed at all
+ my @connections;
+ foreach my $target (@{ $this->{targets} }) {
+ my $conn = create ZOOM::IRSpy::Connection($this, async => 1);
+ $conn->option(host => $target);
+ my $record = delete $target2record{lc($target)};
+ $conn->record($record);
+ push @connections, $conn;
+ }
+ die("remaining target2record = { " .
+ join(", ", map { "$_ ->'" . $target2record{$_}. "'" }
+ sort keys %target2record) . " }")
+ if %target2record;
+
+ $this->{connections} = \@connections;
+ delete $this->{targets}; # The information is now in {connections}
}
}
-# Returns:
-# 0 all tests successfully run
-# 1 some tests skipped
+sub _irspy_to_zeerex {
+ my $this = shift();
+ my($conn, $save_xml) = @_;
+ my $irspy_doc = $conn->record()->{zeerex}->ownerDocument;
+
+ if ($save_xml) {
+ unlink('/tmp/irspy_orig.xml');
+ open FH, '>/tmp/irspy_orig.xml'
+ or die "can't write irspy_orig.xml: $!";
+ print FH $irspy_doc->toString();
+ close FH;
+ }
+ my %params = ();
+ my $result = $this->{irspy_to_zeerex_style}->transform($irspy_doc, %params);
+ if ($save_xml) {
+ unlink('/tmp/irspy_transformed.xml');
+ open FH, '>/tmp/irspy_transformed.xml'
+ or die "can't write irspy_transformed.xml: $!";
+ print FH $result->toString();
+ close FH;
+ }
+
+ return $result->documentElement();
+}
+
+
+sub _rewrite_record {
+ my $this = shift();
+ my($conn) = @_;
+
+ $conn->log("irspy", "rewriting XML record");
+ my $rec = $this->_irspy_to_zeerex($conn, $ENV{IRSPY_SAVE_XML});
+ _really_rewrite_record($this->{conn}, $rec);
+}
+
+
+sub _really_rewrite_record {
+ my($conn, $rec) = @_;
+
+ my $p = $conn->package();
+ $p->option(action => "specialUpdate");
+ my $xml = $rec->toString();
+ $p->option(record => $xml);
+ $p->send("update");
+ $p->destroy();
+
+ $p = $conn->package();
+ $p->send("commit");
+ $p->destroy();
+ if (0) {
+ $xml =~ s/&/&/g;
+ $xml =~ s/</</g;
+ $xml =~ s/>/>/g;
+ print "Updated $conn with xml=<br/>\n<pre>$xml</pre>\n";
+ }
+}
+
+
+# The approach: gather declarative information about test hierarchy,
+# then go into a loop. In the loop, we ensure that each connection is
+# running a test, and within that test a task, until its list of tests
+# is exhausted. No individual test ever calls wait(): tests just queue
+# up tasks and return immediately. When the tasks are run (one at a
+# time on each connection) they generate events, and it is these that
+# are harvested by ZOOM::event(). Since each connection knows what
+# task it is running, it can invoke the appropriate callbacks.
+# Callbacks return a ZOOM::IRSpy::Status value which tells the main
+# loop how to continue.
+#
+# Invariants:
+# While a connection is running a task, its current_task()
+# points at the task structure. When it finishes its task,
+# next_task() is pointed at the next task to execute (if there
+# is one), and its current_task() is set to zero. When the next
+# task is executed, the connection's next_task() is set to zero
+# and its current_task() pointed to the task structure.
+# current_task() and next_task() are both zero only when there
+# are no more queued tasks, which is when a new test is
+# started.
+#
+# Each connection's current test is stored in its
+# "current_test_address" option. The next test to execute is
+# calculated by walking the declarative tree of tests. This
+# option begins empty; the "next test" after this is of course
+# the root test.
#
sub check {
my $this = shift();
+ my($tname) = @_;
+
+ $tname = "Main" if !defined $tname;
+ $this->{tree} = $this->_gather_tests($tname)
+ or die "No tests defined for '$tname'";
+ $this->{tree}->resolve();
+ #$this->{tree}->print(0);
+ my $nskipped = 0;
+
+ my @conn = @{ $this->{connections} };
+
+ my $nruns = 0;
+ ROUND_AND_ROUND_WE_GO:
+ while (1) {
+ my @copy_conn = @conn; # avoid alias problems after splice()
+ my $nconn = scalar(@copy_conn);
+ foreach my $i0 (0 .. $#copy_conn) {
+ my $conn = $copy_conn[$i0];
+ #print "connection $i0 of $nconn/", scalar(@conn), " is $conn\n";
+ if (!$conn->current_task()) {
+ if (!$conn->next_task()) {
+ # Out of tasks: we need a new test
+ NEXT_TEST:
+ my $address = $conn->option("current_test_address");
+ my $nextaddr;
+ if (!defined $address) {
+ $nextaddr = "";
+ } else {
+ $this->log("irspy_test",
+ "checking for next test after '$address'");
+ $nextaddr = $this->_next_test($address);
+ }
+ if (!defined $nextaddr) {
+ $conn->log("irspy", "has no more tests: removing");
+ ### Does this go wrong if two connections are exhausted?
+ splice @conn, $i0, 1;
+ $this->_rewrite_record($conn);
+ $conn->option(rewrote_record => 1);
+ next;
+ }
+
+ my $node = $this->{tree}->select($nextaddr)
+ or die "invalid nextaddr '$nextaddr'";
+ $conn->option(current_test_address => $nextaddr);
+ my $tname = $node->name();
+ $conn->log("irspy_test",
+ "starting test '$nextaddr' = $tname");
+ my $tasks = $conn->tasks();
+ my $oldcount = @$tasks;
+ "ZOOM::IRSpy::Test::$tname"->start($conn);
+ $tasks = $conn->tasks();
+ if (@$tasks > $oldcount) {
+ # Prepare to start the first of the newly added tasks
+ $conn->next_task($tasks->[$oldcount]);
+ } else {
+ $conn->log("irspy_task",
+ "no tasks added by new test $tname");
+ goto NEXT_TEST;
+ }
+ }
+
+ my $task = $conn->next_task();
+ die "no next task queued for $conn" if !defined $task;
+ $conn->log("irspy_task", "preparing task $task");
+ $conn->next_task(0);
+ $conn->current_task($task);
+ $task->run();
+ }
+ }
- return $this->_run_test("Main");
+ NEXT_EVENT:
+ my $i0 = ZOOM::event(\@conn);
+ $this->log("irspy_event",
+ "ZOOM_event(", scalar(@conn), " connections) = $i0");
+ if ($i0 < 1) {
+ my %messages = (
+ 0 => "no events remain",
+ -1 => "ZOOM::event() argument not a reference",
+ -2 => "ZOOM::event() reference not an array",
+ -3 => "no connections remain",
+ -4 => "too many connections for ZOOM::event()",
+ );
+ my $message = $messages{$i0} || "ZOOM::event() returned $i0";
+ $this->log("irspy", $message);
+ last;
+ }
+
+ my $conn = $conn[$i0-1];
+ my $ev = $conn->last_event();
+ my $evstr = ZOOM::event_str($ev);
+ $conn->log("irspy_event", "event $ev ($evstr)");
+ goto NEXT_EVENT if $ev != ZOOM::Event::ZEND;
+
+ my $task = $conn->current_task();
+ die "$conn has no current task for event $ev ($evstr)" if !$task;
+
+ my $res;
+ eval { $conn->check() };
+ if ($@ && ref $@ && $@->isa("ZOOM::Exception")) {
+ my $sub = $task->{cb}->{exception};
+ die $@ if !defined $sub;
+ $res = &$sub($conn, $task, $task->udata(), $@);
+ } elsif ($@) {
+ die "Unexpected non-ZOOM exception: " . ref($@) . " ($@)";
+ } else {
+ my $sub = $task->{cb}->{$ev};
+ if (!defined $sub) {
+ $conn->log("irspy_unhandled", "event $ev ($evstr)");
+ next;
+ }
+
+ $res = &$sub($conn, $task, $task->udata(), $ev);
+ }
+
+ if ($res == ZOOM::IRSpy::Status::OK) {
+ # Nothing to do -- life continues
+
+ } elsif ($res == ZOOM::IRSpy::Status::TASK_DONE) {
+ my $task = $conn->current_task();
+ die "no task for TASK_DONE on $conn" if !$task;
+ die "next task already defined for $conn" if $conn->next_task();
+ $conn->log("irspy_task", "completed task $task");
+ $conn->next_task($task->{next});
+ $conn->current_task(0);
+
+ } elsif ($res == ZOOM::IRSpy::Status::TEST_GOOD ||
+ $res == ZOOM::IRSpy::Status::TEST_BAD) {
+ my $x = ($res == ZOOM::IRSpy::Status::TEST_GOOD) ? "good" : "bad";
+ $conn->log("irspy_task", "test ended during task $task ($x)");
+ $conn->log("irspy_test", "test completed ($x)");
+ $conn->current_task(0);
+ $conn->next_task(0);
+ if ($res == ZOOM::IRSpy::Status::TEST_BAD) {
+ my $address = $conn->option('current_test_address');
+ $conn->log("irspy", "top-level test failed!")
+ if $address eq "";
+ my $node = $this->{tree}->select($address);
+ my $skipcount = 0;
+ while (defined $node->next() &&
+ length($node->next()->address()) >= length($address)) {
+ $conn->log("irspy_debug", "skipping from '",
+ $node->address(), "' to '",
+ $node->next()->address(), "'");
+ $node = $node->next();
+ $skipcount++;
+ }
+
+ $conn->option(current_test_address => $node->address());
+ $conn->log("irspy_test", "skipped $skipcount tests");
+ $nskipped += $skipcount;
+ }
+
+ } elsif ($res == ZOOM::IRSpy::Status::TEST_SKIPPED) {
+ $conn->log("irspy_test", "test skipped during task $task");
+ $conn->current_task(0);
+ $conn->next_task(0);
+ $nskipped++;
+
+ } else {
+ die "unknown callback return-value '$res'";
+ }
+ }
+
+ $this->log("irspy", "exiting main loop");
+ # Sanity checks: none of the following should ever happen
+ my $finished = 1;
+ @conn = @{ $this->{connections} };
+ foreach my $conn (@conn) {
+ my $test = $conn->option("current_test_address");
+ my $next = $this->_next_test($test);
+ if (defined $next) {
+ $this->log("irspy",
+ "$conn (in test '$test') has queued test '$next'");
+ $finished = 0;
+ }
+ if (my $task = $conn->current_task()) {
+ $this->log("irspy", "$conn still has an active task $task");
+ $finished = 0;
+ }
+ if (my $task = $conn->next_task()) {
+ $this->log("irspy", "$conn still has a queued task $task");
+ $finished = 0;
+ }
+ if (!$conn->is_idle()) {
+ $this->log("irspy",
+ "$conn still has ZOOM-C level tasks queued: see below");
+ $finished = 0;
+ }
+ my $ev = $conn->peek_event();
+ if ($ev != 0 && $ev != ZOOM::Event::ZEND) {
+ my $evstr = ZOOM::event_str($ev);
+ $this->log("irspy", "$conn has event $ev ($evstr) waiting");
+ $finished = 0;
+ }
+ if (!$conn->option("rewrote_record")) {
+ $this->log("irspy", "$conn did not rewrite its ZeeRex record");
+ $finished = 0;
+ }
+ }
+
+ # This really shouldn't be necessary, and in practice it rarely
+ # helps, but it's belt and braces. (For now, we don't do this
+ # hence the zero in the $nruns check).
+ if (!$finished) {
+ if (++$nruns < 0) {
+ $this->log("irspy", "back into main loop, ${nruns}th time");
+ goto ROUND_AND_ROUND_WE_GO;
+ } else {
+ $this->log("irspy", "bailing after $nruns main-loop runs");
+ }
+ }
+
+ # This shouldn't happen emit anything either:
+ while ((my $i1 = ZOOM::event(\@conn)) > 0) {
+ my $conn = $conn[$i1-1];
+ my $ev = $conn->last_event();
+ my $evstr = ZOOM::event_str($ev);
+ $this->log("irspy",
+ "$conn still has ZOOM-C level task queued: $ev ($evstr)")
+ if $ev != ZOOM::Event::ZEND;
+ }
+
+ return $nskipped;
}
-sub _run_test {
+sub _gather_tests {
my $this = shift();
- my($tname) = @_;
+ my($tname, @ancestors) = @_;
+
+ die("$0: test-hierarchy loop detected: " .
+ join(" -> ", @ancestors, $tname))
+ if grep { $_ eq $tname } @ancestors;
+
+ my $slashSeperatedTname = $tname;
+ $slashSeperatedTname =~ s/::/\//g;
+ my $fullName = "ZOOM/IRSpy/Test/$slashSeperatedTname.pm";
eval {
- require "ZOOM/IRSpy/Test/$tname.pm";
+ require $fullName;
+ $this->log("irspy", "successfully required '$fullName'");
}; if ($@) {
+ $this->log("irspy", "couldn't require '$fullName': $@");
$this->log("warn", "can't load test '$tname': skipping",
$@ =~ /^Can.t locate/ ? () : " ($@)");
- return 1;
+ return undef;
}
- $this->log("irspy", "running test '$tname'");
- my $test = "ZOOM::IRSpy::Test::$tname"->new($this);
- return $test->run();
+ $this->log("irspy", "adding test '$tname'");
+ my @subnodes;
+ foreach my $subtname ("ZOOM::IRSpy::Test::$tname"->subtests($this)) {
+ my $subtest = $this->_gather_tests($subtname, @ancestors, $tname);
+ push @subnodes, $subtest if defined $subtest;
+ }
+
+ return new ZOOM::IRSpy::Node($tname, @subnodes);
}
-# Access methods for the use of Test modules
-sub pod {
+# These next three should arguably be Node methods
+sub _next_test {
my $this = shift();
- return $this->{pod};
+ my($address, $omit_child) = @_;
+
+ # Try first child
+ if (!$omit_child) {
+ my $maybe = $address eq "" ? "0" : "$address:0";
+ return $maybe if $this->{tree}->select($maybe);
+ }
+
+ # The top-level node has no successor or parent
+ return undef if $address eq "";
+
+ # Try next sibling child
+ my @components = split /:/, $address;
+ my $last = pop @components;
+ my $maybe = join(":", @components, $last+1);
+ return $maybe if $this->{tree}->select($maybe);
+
+ # This node is exhausted: try the parent's successor
+ return $this->_next_test(join(":", @components), 1)
}
-sub record {
+
+sub _last_sibling_test {
my $this = shift();
- my($target) = @_;
- return $this->{target2record}->{$target};
+ my($address) = @_;
+
+ return undef
+ if !defined $this->_next_sibling_test($address);
+
+ my $nskipped = 0;
+ while (1) {
+ my $maybe = $this->_next_sibling_test($address);
+ last if !defined $maybe;
+ $nskipped++;
+ $address = $maybe;
+ $this->log("irspy", "skipping $nskipped tests to '$address'");
+ }
+
+ return ($address, $nskipped);
}
+sub _next_sibling_test {
+ my $this = shift();
+ my($address) = @_;
+
+ my @components = split /:/, $address;
+ my $last = pop @components;
+ my $maybe = join(":", @components, $last+1);
+ return $maybe if $this->{tree}->select($maybe);
+ return undef;
+}
+
=head1 SEE ALSO
-ZOOM::IRSpy::Record
+ZOOM::IRSpy::Record,
+ZOOM::IRSpy::Web,
+ZOOM::IRSpy::Test,
+ZOOM::IRSpy::Maintenance.
The ZOOM-Perl module,
http://search.cpan.org/~mirk/Net-Z3950-ZOOM/
=cut
+
1;
projects / irspy-moved-to-github.git / blobdiff