# 🔍 Solr (6.1.0+) search Engine & Tika (1.13+) Extractor

We are using solr for search index.

Solr need to be configured for drupal. Follow the INSTALL.txt found in the `search_api_solr` module.

As a pre-requisite for running your own Solr server, you'll need Java 6 or higher.

# Installation

Install all prerequisites and configuration from `web/modules/contrib/search_api_solr/INSTALL.txt` then

Start Solr with:
    $ bin/solr start

Create the new instance index-my-project
    $ bin/solr create -c index-my-project

The creation will generate a folder under `$SOLR_PATH/6.1.0/server/solr/index-my-project`

Copy all the configs files from `web/modules/contrib/search_api_solr/solr-conf/6.x/*` into `$SOLR_PATH/6.1.0/server/solr/index-my-project/conf`

    $ cp web/modules/contrib/search_api_solr/solr-conf/6.x/* $SOLR_PATH/6.1.0/server/solr/index-my-project/conf

Restart Solr
    $ bin/solr restart

Check your Solr status with `solr status` and with `http://localhost:8983/solr/#/`

## Usage

Start Solr with:

  ```shell
  $ bin/solr start
  ```

Index all your content with:

  ```shell
  $ drush cron
  ```

Clean the index:

  ```shell
  $ drush sapi-c [index]
  ```

Index everything at once:

  ```shell
  $ drush sapi-i [index]
  ```

## Drupal Configuration

Check the Solr configuration on `admin/config/search/search-api/server/solr/edit` and the Tika under `admin/config/search/search_api_attachments`

### Add partial search

By default Solr don't match partial search, you should edit the *schema.xml*
file and add the following filters on the `fieldType name="text"`.

  ```xml
  <fieldType name="text" class="solr.TextField" positionIncrementGap="100">
  ```

  ```xml
  <filter class="solr.LowerCaseFilterFactory"/>
  <filter class="solr.EdgeNGramFilterFactory" minGramSize="2" maxGramSize="25" />
  ```

### Improved natural language search

You should improved the natural search by editing the *stopwords.txt* file.
Check stopwords on [stopwords-iso](https://github.com/stopwords-iso/)

Replace the default `SnowballPorterFilterFactory` from `language="English"`
to `language="French"`,

You should improved the natural search by editing the *synonyms.txt* file.
 - Check synonyms for english (~1500 words) from [Roget's Thesaurus](http://www.gutenberg.org/ebooks/10681)
 - Check synonyms (~143405 words) for french from [termsuite](https://github.com/termsuite/termsuite-core/blob/master/src/main/resources/fr/univnantes/termsuite/resources/fr/french-synonyms.txt)
 - Check synonyms for french (~326 words) from [kevinbouge](https://sites.google.com/site/kevinbouge/synonyms-lists)

## Highlights

http://www.codewrecks.com/blog/index.php/2013/05/27/hilight-matched-text-inside-documents-indexed-with-solr-plus-tika/