Elasticsearch est le moteur de recherche par défaut dans Liferay depuis la version 7.0 sortie en 2016. Auparavant, Liferay utilisait Solr un moteur aussi basé sur Lucene et qui est toujours compatible avec Liferay. Dans cette présentation, nous allons voir comment Liferay est construit afin d’être “agnostique” de la solution de recherche, et comment Elasticsearch est utilisé au sein de cette DXP. Nous allons également voir comment il est possible de construire sa propre application de recherche dans Liferay au travers d’un exemple open-source “Liferay GSearch” qui permet d’avoir une expérience de recherche “à la Google”.

1. Replace
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Liferay, Search &
Customization
Louis-Guillaume Durand
Elastic Paris Meetup #38
09/07/2019

2. LIFERAY
What is “Liferay”?

3. Open-source Portal created by Brian Chan in
2000
Incorporated in 2004
Leader in « Gartner’s Magic Quadrant »
950 employees
40 countries
What is “Liferay”?

5. LIFERAYLIFERAYPRODUCTS

6. LIFERAY
7 Popular Use Cases

7. 7 Popular Use Cases
How do customers use Liferay?

8. How do customers use Liferay?
1. Digital Workplace
2. Extranets
3. Self-Service Customer Portals
4. Public Websites
7 Popular Use Cases
5. Integration Platforms
6. Campus Portals
7. Learning Management Systems
Source: http://bit.ly/PopularLiferayUseCases

9. LIFERAY
Liferay DXP Architecture

10. Tech stack
Liferay DXP Architecture

12. LIFERAY
Search in Liferay DXP

13. Search Framework
Search in Liferay DXP
Search Widget Search API
Elasticsearch
Adapter
Solr
Adapter
ou

14. Indexing & Analysis
Search in Liferay DXP
Submit an Asset
Run Asset Indexer
Run Post Indexer
Processors
Inverted index
Send to search engine
Character Filtering
Tokenizing
Token Filtering

15. Searching
Search in Liferay DXP
Submit a query
Build the query
Run Post Indexer
Processors
Inverted index
Send to search engine
Character Filtering
Tokenizing
Token Filtering

16. Searching
Search in Liferay DXP
Run Hits Processors
Run Post Filtering
Show Results in the UI
Inverted index
Return results
Character Filtering
Tokenizing
Token Filtering

17. LIFERAY
Customization

18. Indexer Post Processors
● Customize documents
● Customize queries
Customization

19. Hits Processors
& Post Filtering
● Customize results
Customization

20. System Configuration
● Keyword Query Contributors
● Additional Type Mappings
● Override Type Mappings
● …
Customization

21. Widgets Configuration
● Custom Facet
● Suggestions
Customization

22. What if I want…
● … to customize the UI?
● … to add support for other query types?
● … to add autocomplete?
● …
Customization
Business photo created by dashu83 - www.freepik.com

23. LIFERAY
Example: Liferay GSearch

24. Overview
Open-source project:
github.com/peerkar/liferay-gsearch
A modular and highly configurable,
Google-like search application.
Example: Liferay GSearch

25. Features
● Google like appearance and UX
● Completely ajaxed interface (no page transitions)
● 5 selectable search result layouts
● Sortable search results (not available in default Liferay search)
● Keyword suggestions (autocompletion) using configurable
aggregate suggester (phrase and completion suggesters)
● …
Example: Liferay GSearch

26. Démonstration

27. LIFERAY
Thanks!
lgdd
_lgdd