Merge pull request #69 from Codappix/feature/support-ngram

FEATURE: Add ngram

Classes/Connection/Elasticsearch/IndexFactory.php

@@ -20,8 +20,11 @@ namespace Codappix\SearchCore\Connection\Elasticsearch;
  * 02110-1301, USA.
  */
 
+use Codappix\SearchCore\Configuration\ConfigurationContainerInterface;
+use Codappix\SearchCore\Configuration\InvalidArgumentException;
 use Elastica\Exception\ResponseException;
 use TYPO3\CMS\Core\SingletonInterface as Singleton;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface;
 
 /**
@@ -31,6 +34,19 @@ use TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface;
  */
 class IndexFactory implements Singleton
 {
+    /**
+     * @var ConfigurationContainerInterface
+     */
+    protected $configuration;
+
+    /**
+     * @param ConfigurationContainerInterface $configuration
+     */
+    public function __construct(ConfigurationContainerInterface $configuration)
+    {
+        $this->configuration = $configuration;
+    }
+
     /**
      * Get an index bases on TYPO3 table name.
      *
@@ -41,19 +57,52 @@ class IndexFactory implements Singleton
      */
     public function getIndex(Connection $connection, $documentType)
     {
-        // TODO: Fetch index name from configuration, based on $documentType.
         $index = $connection->getClient()->getIndex('typo3content');
 
-        try {
-            // TODO: Provide configuration?!
-            // http://elastica.io/getting-started/storing-and-indexing-documents.html#section-analysis
-            $index->create();
-        } catch (ResponseException $exception) {
-            if (stripos($exception->getMessage(), 'already exists') === false) {
-                throw $exception;
-            }
+        if ($index->exists() === false) {
+            $index->create($this->getConfigurationFor($documentType));
         }
 
         return $index;
     }
+
+    /**
+     * @param string $documentType
+     *
+     * @return array
+     */
+    protected function getConfigurationFor($documentType)
+    {
+        try {
+            $configuration = $this->configuration->get('indexing.' . $documentType . '.index');
+
+            if (isset($configuration['analysis']['analyzer'])) {
+                foreach ($configuration['analysis']['analyzer'] as $key => $analyzer) {
+                    $configuration['analysis']['analyzer'][$key] = $this->prepareAnalyzerConfiguration($analyzer);
+                }
+            }
+
+            return $configuration;
+        } catch (InvalidArgumentException $e) {
+            return [];
+        }
+    }
+
+    /**
+     * @param array $analyzer
+     *
+     * @return array
+     */
+    protected function prepareAnalyzerConfiguration(array $analyzer)
+    {
+        $fieldsToExplode = ['char_filter', 'filter'];
+
+        foreach ($fieldsToExplode as $fieldToExplode) {
+            if (isset($analyzer[$fieldToExplode])) {
+                $analyzer[$fieldToExplode] = GeneralUtility::trimExplode(',', $analyzer[$fieldToExplode], true);
+            }
+        }
+
+        return $analyzer;
+    }
 }

Classes/Connection/Elasticsearch/MappingFactory.php

@@ -53,7 +53,13 @@ class MappingFactory implements Singleton
     {
         $mapping = new \Elastica\Type\Mapping();
         $mapping->setType($type);
-        $mapping->setProperties($this->getConfiguration($type->getName()));
+
+        $configuration = $this->getConfiguration($type->getName());
+        if (isset($configuration['_all'])) {
+            $mapping->setAllField($configuration['_all']);
+            unset($configuration['_all']);
+        }
+        $mapping->setProperties($configuration);
 
         return $mapping;
     }

Classes/Domain/Search/QueryFactory.php

@@ -20,6 +20,7 @@ namespace Codappix\SearchCore\Domain\Search;
  * 02110-1301, USA.
  */
 
+use Codappix\SearchCore\Configuration\ConfigurationContainerInterface;
 use Codappix\SearchCore\Connection\ConnectionInterface;
 use Codappix\SearchCore\Connection\Elasticsearch\Query;
 use Codappix\SearchCore\Connection\SearchRequestInterface;
@@ -32,6 +33,11 @@ class QueryFactory
      */
     protected $logger;
 
+    /**
+     * @var ConfigurationContainerInterface
+     */
+    protected $configuration;
+
     /**
      * @var array
      */
@@ -39,10 +45,14 @@ class QueryFactory
 
     /**
      * @param \TYPO3\CMS\Core\Log\LogManager $logManager
+     * @param ConfigurationContainerInterface $configuration
      */
-    public function __construct(\TYPO3\CMS\Core\Log\LogManager $logManager)
-    {
+    public function __construct(
+        \TYPO3\CMS\Core\Log\LogManager $logManager,
+        ConfigurationContainerInterface $configuration
+    ) {
         $this->logger = $logManager->getLogger(__CLASS__);
+        $this->configuration = $configuration;
     }
 
     /**
@@ -76,19 +86,20 @@ class QueryFactory
      */
     protected function addSearch(SearchRequestInterface $searchRequest)
     {
-        $this->query = ArrayUtility::arrayMergeRecursiveOverrule($this->query, [
-            'query' => [
-                'bool' => [
-                    'must' => [
-                        [
-                            'match' => [
-                                '_all' => $searchRequest->getSearchTerm()
-                            ],
-                        ],
-                    ],
-                ],
-            ],
-        ]);
+        $this->query = ArrayUtility::setValueByPath(
+            $this->query,
+            'query.bool.must.0.match._all.query',
+            $searchRequest->getSearchTerm()
+        );
+
+        $minimumShouldMatch = $this->configuration->getIfExists('searching.minimumShouldMatch');
+        if ($minimumShouldMatch) {
+            $this->query = ArrayUtility::setValueByPath(
+                $this->query,
+                'query.bool.must.0.match._all.minimum_should_match',
+                $minimumShouldMatch
+            );
+        }
     }
 
     /**

Documentation/source/configuration.rst

@@ -184,6 +184,40 @@ options are available:
     makes building a facet possible.
 
 
+.. _index:
+
+``index``
+"""""""""
+
+    Used by: Elasticsearch connection while indexing.
+
+    Define index for Elasticsearch, have a look at the official docs: https://www.elastic.co/guide/en/elasticsearch/reference/5.2/indices-create-index.html
+
+    Example::
+
+        plugin.tx_searchcore.settings.indexing.tt_content.index {
+            analysis {
+                analyzer {
+                    ngram4 {
+                        type = custom
+                        tokenizer = ngram4
+                        char_filter = html_strip
+                        filter = lowercase, asciifolding
+                    }
+                }
+
+                tokenizer {
+                    ngram4 {
+                        type = ngram
+                        min_gram = 4
+                        max_gram = 4
+                    }
+                }
+            }
+        }
+
+    ``char_filter`` and ``filter`` are a comma separated list of options.
+
 .. _configuration_options_search:
 
 Searching
@@ -209,3 +243,16 @@ Searching
 
     The above example will provide a facet with options for all found ``CType`` results together
     with a count.
+
+.. _minimumShouldMatch:
+
+``minimumShouldMatch``
+""""""""""""""""""""""
+
+    Used by: Elasticsearch connection while building search query.
+
+    Define the minimum match for Elasticsearch, have a look at the official docs: https://www.elastic.co/guide/en/elasticsearch/reference/5.2/query-dsl-minimum-should-match.html
+
+    Example::
+
+        plugin.tx_searchcore.settings.searching.minimumShouldMatch = 50%

Tests/Unit/Connection/Elasticsearch/IndexFactoryTest.php

@@ -0,0 +1,132 @@
+<?php
+namespace Codappix\SearchCore\Tests\Unit\Connection\Elasticsearch;
+
+/*
+ * Copyright (C) 2017  Daniel Siepmann <coding@daniel-siepmann.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+use Codappix\SearchCore\Configuration\ConfigurationContainerInterface;
+use Codappix\SearchCore\Connection\Elasticsearch\Connection;
+use Codappix\SearchCore\Connection\Elasticsearch\IndexFactory;
+use Codappix\SearchCore\Tests\Unit\AbstractUnitTestCase;
+
+class IndexFactoryTest extends AbstractUnitTestCase
+{
+    /**
+     * @var IndexFactory
+     */
+    protected $subject;
+
+    public function setUp()
+    {
+        parent::setUp();
+
+        $this->configuration = $this->getMockBuilder(ConfigurationContainerInterface::class)->getMock();
+        $this->subject = new IndexFactory($this->configuration);
+    }
+
+    /**
+     * @test
+     */
+    public function indexIsNotCreatedIfAlreadyExisting()
+    {
+        $indexMock = $this->getMockBuilder(\Elastica\Index::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $indexMock->expects($this->once())
+            ->method('exists')
+            ->willReturn(true);
+        $indexMock->expects($this->never())
+            ->method('create');
+        $clientMock = $this->getMockBuilder(\Elastica\Client::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $clientMock->expects($this->once())
+            ->method('getIndex')
+            ->with('typo3content')
+            ->willReturn($indexMock);
+        $connection = $this->getMockBuilder(Connection::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $connection->expects($this->once())
+            ->method('getClient')
+            ->willReturn($clientMock);
+
+        $this->subject->getIndex($connection, 'someIndex');
+    }
+
+    /**
+     * @test
+     */
+    public function typoScriptConfigurationIsProvidedToIndex()
+    {
+        $configuration = [
+            'analysis' => [
+                'analyzer' => [
+                    'ngram4' => [
+                        'type' => 'custom',
+                        'tokenizer' => 'ngram4',
+                        'char_filter' => 'html_strip',
+                        'filter' => 'lowercase, ,  asciifolding',
+                    ],
+                ],
+                'tokenizer' => [
+                    'ngram4' => [
+                        'type' => 'ngram',
+                        'min_gram' => 4,
+                        'max_gram' => 4,
+                    ],
+                ],
+            ],
+        ];
+
+        $expectedConfiguration = $configuration;
+        $expectedConfiguration['analysis']['analyzer']['ngram4']['char_filter'] = ['html_strip'];
+        $expectedConfiguration['analysis']['analyzer']['ngram4']['filter'] = ['lowercase', 'asciifolding'];
+
+        $indexMock = $this->getMockBuilder(\Elastica\Index::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $indexMock->expects($this->once())
+            ->method('exists')
+            ->willReturn(false);
+        $indexMock->expects($this->once())
+            ->method('create')
+            ->with($expectedConfiguration);
+        $clientMock = $this->getMockBuilder(\Elastica\Client::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $clientMock->expects($this->once())
+            ->method('getIndex')
+            ->with('typo3content')
+            ->willReturn($indexMock);
+        $connection = $this->getMockBuilder(Connection::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $connection->expects($this->once())
+            ->method('getClient')
+            ->willReturn($clientMock);
+
+        $this->configuration->expects($this->once())
+            ->method('get')
+            ->with('indexing.someIndex.index')
+            ->willReturn($configuration);
+
+        $this->subject->getIndex($connection, 'someIndex');
+    }
+}

Tests/Unit/Connection/Elasticsearch/MappingFactoryTest.php

@@ -0,0 +1,86 @@
+<?php
+namespace Codappix\SearchCore\Tests\Unit\Connection\Elasticsearch;
+
+/*
+ * Copyright (C) 2017  Daniel Siepmann <coding@daniel-siepmann.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+use Codappix\SearchCore\Configuration\ConfigurationContainerInterface;
+use Codappix\SearchCore\Connection\Elasticsearch\MappingFactory;
+use Codappix\SearchCore\Tests\Unit\AbstractUnitTestCase;
+
+class MappingFactoryTest extends AbstractUnitTestCase
+{
+    /**
+     * @var MappingFactory
+     */
+    protected $subject;
+
+    public function setUp()
+    {
+        parent::setUp();
+
+        $this->configuration = $this->getMockBuilder(ConfigurationContainerInterface::class)->getMock();
+        $this->subject = new MappingFactory($this->configuration);
+    }
+
+    /**
+     * @test
+     */
+    public function typoScriptConfigurationIsProvidedToIndex()
+    {
+        $indexName = 'someIndex';
+        $configuration = [
+            '_all' => [
+                'type' => 'text',
+                'analyzer' => 'ngram4',
+            ],
+            'channel' => [
+                'type' => 'keyword',
+            ],
+        ];
+        $type = $this->getMockBuilder(\Elastica\Type::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $type->expects($this->any())
+            ->method('getName')
+            ->willReturn($indexName);
+        $this->configuration->expects($this->once())
+            ->method('get')
+            ->with('indexing.' . $indexName . '.mapping')
+            ->willReturn($configuration);
+
+        $mapping = $this->subject->getMapping($type)->toArray()[$indexName];
+        $this->assertArraySubset(
+            [
+                '_all' => $configuration['_all']
+            ],
+            $mapping,
+            true,
+            'Configuration of _all field was not set for mapping.'
+        );
+        $this->assertArraySubset(
+            [
+                'channel' => $configuration['channel']
+            ],
+            $mapping['properties'],
+            true,
+            'Configuration for properties was not set for mapping.'
+        );
+    }
+}

Tests/Unit/Domain/Search/QueryFactoryTest.php

@@ -20,6 +20,7 @@ namespace Codappix\SearchCore\Tests\Unit\Domain\Search;
  * 02110-1301, USA.
  */
 
+use Codappix\SearchCore\Configuration\ConfigurationContainerInterface;
 use Codappix\SearchCore\Domain\Model\FacetRequest;
 use Codappix\SearchCore\Domain\Model\SearchRequest;
 use Codappix\SearchCore\Domain\Search\QueryFactory;
@@ -32,11 +33,17 @@ class QueryFactoryTest extends AbstractUnitTestCase
      */
     protected $subject;
 
+    /**
+     * @var ConfigurationContainerInterface
+     */
+    protected $configuration;
+
     public function setUp()
     {
         parent::setUp();
 
-        $this->subject = new QueryFactory($this->getMockedLogger());
+        $this->configuration = $this->getMockBuilder(ConfigurationContainerInterface::class)->getMock();
+        $this->subject = new QueryFactory($this->getMockedLogger(), $this->configuration);
     }
 
     /**
@@ -97,27 +104,6 @@ class QueryFactoryTest extends AbstractUnitTestCase
         );
     }
 
-    /**
-     * @test
-     */
-    public function userInputIsAlwaysString()
-    {
-        $searchRequest = new SearchRequest(10);
-        $searchRequest->setFilter(['field' => 20]);
-
-        $query = $this->subject->create($searchRequest);
-        $this->assertSame(
-            '10',
-            $query->toArray()['query']['bool']['must'][0]['match']['_all'],
-            'Search word was not escaped as expected.'
-        );
-        $this->assertSame(
-            '20',
-            $query->toArray()['query']['bool']['filter'][0]['term']['field'],
-            'Search word was not escaped as expected.'
-        );
-    }
-
     /**
      * @test
      */
@@ -145,4 +131,62 @@ class QueryFactoryTest extends AbstractUnitTestCase
             'Facets were not added to query.'
         );
     }
+
+    /**
+     * @test
+     */
+    public function searchTermIsAddedToQuery()
+    {
+        $searchRequest = new SearchRequest('SearchWord');
+        $query = $this->subject->create($searchRequest);
+
+        $this->assertSame(
+            [
+                'bool' => [
+                    'must' => [
+                        [
+                            'match' => [
+                                '_all' => [
+                                    'query' => 'SearchWord',
+                                ],
+                            ],
+                        ],
+                    ],
+                ],
+            ],
+            $query->toArray()['query'],
+            'Search term was not added to query as expected.'
+        );
+    }
+
+    /**
+     * @test
+     */
+    public function minimumShouldMatchIsAddedToQuery()
+    {
+        $searchRequest = new SearchRequest('SearchWord');
+        $this->configuration->expects($this->once())
+            ->method('getIfExists')
+            ->with('searching.minimumShouldMatch')
+            ->willReturn('50%');
+        $query = $this->subject->create($searchRequest);
+
+        $this->assertArraySubset(
+            [
+                'bool' => [
+                    'must' => [
+                        [
+                            'match' => [
+                                '_all' => [
+                                    'minimum_should_match' => '50%',
+                                ],
+                            ],
+                        ],
+                    ],
+                ],
+            ],
+            $query->toArray()['query'],
+            'minimum_should_match was not added to query as configured.'
+        );
+    }
 }