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# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
use strict;
use warnings;
use lib 'buildlib';
use Lucy::Test;
package NonMergingIndexManager;
use base qw( Lucy::Index::IndexManager );
sub recycle {
return Lucy::Object::VArray->new( capacity => 0 );
}
# BiggerSchema is like TestSchema, but it has an extra field named "aux".
# Because "aux" sorts before "content", it forces a remapping of field numbers
# when an index created under TestSchema is opened/modified under
# BiggerSchema.
package BiggerSchema;
use base qw( Lucy::Test::TestSchema );
sub new {
my $self = shift->SUPER::new(@_);
my $type = Lucy::Plan::FullTextType->new(
analyzer => Lucy::Analysis::RegexTokenizer->new,
highlightable => 1,
);
$self->spec_field( name => 'content', type => $type );
$self->spec_field( name => 'aux', type => $type );
return $self;
}
package main;
use Test::More tests => 10;
use Lucy::Test::TestUtils qw( create_index init_test_index_loc );
use File::Find qw( find );
my $index_loc = init_test_index_loc();
my $num_reps;
{
# Verify that optimization truly cuts down on the number of segments.
my $schema = Lucy::Test::TestSchema->new;
for ( $num_reps = 1;; $num_reps++ ) {
my $indexer = Lucy::Index::Indexer->new(
index => $index_loc,
schema => $schema,
);
my $num_segmeta = num_segmeta($index_loc);
if ( $num_reps > 2 and $num_segmeta > 1 ) {
$indexer->optimize;
$indexer->commit;
$num_segmeta = num_segmeta($index_loc);
is( $num_segmeta, 1, 'commit after optimize' );
last;
}
else {
$indexer->add_doc( { content => $_ } ) for 1 .. 5;
$indexer->commit;
}
}
}
my @correct;
for my $num_letters ( reverse 1 .. 10 ) {
my $truncate = $num_letters == 10 ? 1 : 0;
my $indexer = Lucy::Index::Indexer->new(
index => $index_loc,
truncate => $truncate,
);
for my $letter ( 'a' .. 'b' ) {
my $content = ( "$letter " x $num_letters ) . ( 'z ' x 50 );
$indexer->add_doc( { content => $content } );
push @correct, $content if $letter eq 'b';
}
$indexer->commit;
}
{
my $searcher = Lucy::Search::IndexSearcher->new( index => $index_loc );
my $hits = $searcher->hits( query => 'b' );
is( $hits->total_hits, 10, "correct total_hits from merged index" );
my @got;
push @got, $hits->next->{content} for 1 .. $hits->total_hits;
is_deeply( \@got, \@correct,
"correct top scoring hit from merged index" );
}
{
# Reopen index under BiggerSchema and add some content.
my $schema = BiggerSchema->new;
my $folder = Lucy::Store::FSFolder->new( path => $index_loc );
my $indexer = Lucy::Index::Indexer->new(
schema => $schema,
index => $folder,
manager => NonMergingIndexManager->new,
);
$indexer->add_doc( { aux => 'foo', content => 'bar' } );
# Now add some indexes.
my $another_folder = create_index( "atlantic ocean", "fresh fish" );
my $yet_another_folder = create_index("bonus");
$indexer->add_index($another_folder);
$indexer->add_index($yet_another_folder);
$indexer->commit;
cmp_ok( num_segmeta($index_loc), '>', 1,
"non-merging Indexer should produce multi-seg index" );
}
{
my $searcher = Lucy::Search::IndexSearcher->new( index => $index_loc );
my $hits = $searcher->hits( query => 'fish' );
is( $hits->total_hits, 1, "correct total_hits after add_index" );
is( $hits->next->{content},
'fresh fish', "other indexes successfully absorbed" );
}
{
# Open an IndexReader, to prevent the deletion of files on Windows and
# verify the file purging mechanism.
my $schema = BiggerSchema->new;
my $folder = Lucy::Store::FSFolder->new( path => $index_loc );
my $reader = Lucy::Index::IndexReader->open( index => $folder );
my $indexer = Lucy::Index::Indexer->new(
schema => $schema,
index => $folder,
);
$indexer->optimize;
$indexer->commit;
$reader->close;
undef $reader;
$indexer = Lucy::Index::Indexer->new(
schema => $schema,
index => $folder,
);
$indexer->optimize;
$indexer->commit;
}
is( num_segmeta($index_loc), 1, "merged segment files successfully deleted" );
{
my $folder = Lucy::Store::RAMFolder->new;
my $schema = Lucy::Test::TestSchema->new;
my $number = 1;
for ( 1 .. 3 ) {
my $indexer = Lucy::Index::Indexer->new(
index => $folder,
schema => $schema,
manager => NonMergingIndexManager->new,
);
$indexer->add_doc( { content => $number++ } ) for 1 .. 20;
$indexer->commit;
}
my $indexer = Lucy::Index::Indexer->new(
index => $folder,
schema => $schema,
);
$indexer->delete_by_term( field => 'content', term => $_ )
for ( 3, 23, 24, 25 );
$indexer->commit;
ok( $folder->exists("seg_1/segmeta.json"),
"Segment with under 10% deletions preserved"
);
ok( !$folder->exists("seg_2/segmeta.json"),
"Segment with over 10% deletions merged away"
);
}
is( Lucy::Store::FileHandle::object_count(),
0, "All FileHandle objects have been cleaned up" );
sub num_segmeta {
my $dir = shift;
my $num_segmeta = 0;
find(
{ no_chdir => 1,
wanted =>
sub { $num_segmeta++ if $File::Find::name =~ /segmeta.json/ },
},
$dir,
);
return $num_segmeta;
}
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