GeoKettle: A powerful open source spatial ETL tool
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GeoKettle is an open source spatial ETL tool that is part of a geospatial business intelligence software stack. It is based on Pentaho Data Integration and provides consistent integration of spatial data types and capabilities. GeoKettle allows automated extraction, transformation, and loading of data across various sources into data warehouses. It supports spatial operations and can be deployed in cloud environments for scalable geospatial data processing.
GeoKettle: A powerful open source spatial ETL tool
- 1. GeoKettle: A powerful open source spatial ETL tool FOSS4G 2010 Dr. Thierry Badard, CTO Spatialytics inc. Quebec, Canada tbadard@spatialytics.com Barcelona, Spain – Sept 9th, 2010
- 2. What is GeoKettle? ● It is part of the geospatial BI software stack developed initially by the GeoSOA research group at Laval University in Quebec … – GeoKettle – GeoMondrian – SOLAPLayers ● But are now developed and supported by Spatialytics – http://www.spatialytics.org (open source community) – http://www.spatialytics.com (professional support, training) ● OK but … what is geospatial BI? ;-)
- 3. As you probably know … ● Business Intelligence applications are usually used to better understand historical, current and future aspects of business operations in a company. ● The applications typically offer ways to mine database- and spreadsheet-centric data, and produce graphical, table-based and other types of analytics regarding business operations. ● They support the decision process and allow to take more informed decision!
- 4. Data visualization to support decision …
- 5. As you probably know … ● Business Intelligence applications are usually used to better understand historical, current and future aspects of business operations in a company. ● The applications typically offer ways to mine database- and spreadsheet-centric data, and produce graphical, table-based and other types of analytics regarding business operations. ● They support the decision process and allow to take more informed decision! ● Rely on an architecture with robust components and applications: − ETL tools & data warehousing (DW) − On-line Analytical Processing (OLAP) servers and clients − Reporting tools & dashboards − Data mining
- 6. So, an ETL tool is … ● A type of software used to populate databases or data warehouses from heterogeneous data sources. ● ETL stands for: − Extract – Extract data from data sources − Transform – Transformation of data in order to correct errors, make some data cleansing, change the data structure, make them compliant to defined standards, etc. − Load – Load transformed data into the target DBMS ● An ETL tool should manage the insertion of new data and the updating of existing data. ● Should be able to perform transformations from : − An OLTP system to another OLTP system − An OLTP system to an analytical data warehouse
- 7. Why use an ETL tool? ● Automation of complex and repetitive data processing without producing any specific code ● Conversion between various data formats ● Migration of data from a DBMS to another ● Data feeding into various DBMS ● Population of analytical data warehouses for decision support purposes ● etc.
- 8. GeoKettle ● GeoKettle is a "spatially-enabled" version of Pentaho Data Integration (Kettle) ● Kettle is a metadata-driven ETL with direct execution of transformations − No intermediate code generation! ● Support of several DBMS and file formats − DBMS support: MySQL, PostgreSQL, Oracle, DB2, MS SQL Server, ... (total of 37) − Read/write support of various data file formats: text, Excel, Access, DBF, XML, ... ● Numerous transformation steps ● Support of methods for the updating of DW
- 9. GeoKettle ● GeoKettle provides a true and consistent integration of the spatial component − All steps provided by Kettle are able to deal with geospatial data types − Some geospatial dedicated steps have been added ● First release in May 2008: 2.5.2-20080531 ● Current stable version: 3.2.0-r188-20090706 ● To be released shortly: GeoKettle 2.0 with many new features! ● Released under LGPL at http://www.geokettle.org ● Used in different organizations and countries: − Some ministries, bank, insurance, integrators, … − E.g. GeoETL from Inova is in fact GeoKettle! :-) ● A growing community of users and developers
- 10. GeoKettle ● Transformations vs. Jobs: − Running in parallel vs. running sequentially ● All can be stored in a central repository (database) − But each transformation or job could also be saved in a simple XML file! ● Offers different interfaces: − Spoon: GUI for the edition of transformations and jobs − Pan: command line interface for running transformations − Kitchen: command line interface for running jobs − Carte: Web service for the remote execution of transformations and jobs
- 12. ● Provides support for: GeoKettle − Handling geometry data types (based on JTS) − Accessing Geometry objects in JavaScript − It allows the definition of custom transformation steps by the user (“Modified JavaScript Value” step) − Topological predicates (Intersects, crosses, etc.) and aggregation operators (envelope, union, geometry collection, ...) − SRS definition and transformations − Input / Output with some spatial DBMS - Native support for Oracle, PostGIS and MySQL - MS SQL Server 2008 and IBM DB2 can be used but it requires some tricks − GIS file Input / Output: Shapefile, GML 3, KML 2.2 and OGR support (~33 vector data formats and DBMS) − Cartographic preview
- 13. GeoKettle ● GeoKettle releases are aligned with the ones of Pentaho Data Integration (Kettle), − GeoKettle then benefits all new features provided by PDI (Kettle). ● Kettle is natively designed to be deployed in cluster and web service environments. − It makes GeoKettle a perfect software component to be deployed as a service (SaaS) in cloud computing environments as those provided by Amazon EC2. − It enables then the scalable, distributed and on demand processing of large and complex volumes of geospatial data in minutes for critical applications and without requiring a company to invest in an expensive IT infrastructure of servers, networks and software.
- 14. GeoKettle – Requirements and install ● Very simple installation procedure ● All you need is a Java Runtime Environment – Version 5 or higher ● Just unzip the binary archive of GeoKettle ... ● And let’s go ! – Run spoon.sh (UNIX/Linux/Mac) or spoon.bat (Windows) ● Need help, please visit our wiki: – http://wiki.spatialytics.org
- 16. GeoKettle ● Upcoming features: − Implementation of data matching and conflation steps/jobs in order to allow geometric data cleansing and comparison of geospatial datasets (results of a Google Summer of Code, should be available in version 2.x) − Read/write support for other DBMS, GIS file formats and services − LAS (LiDAR), ... − Native support for MS SQL Server 2008, ... − WFS-T, Sensor Web (TML, SensorML, SOS, ...), ... − GIS metadata and CSW − Implementation of a “Spatial analysis” step with a GUI − Dedicated steps for social media (Twitter, ...), OSM, generalization, ... − Support of the third dimension − Raster support: development in progress of a plugin to integrate all capabilities provided by the Sextante library (BeETLe)
- 17. Questions? ● Thanks for your attention and do not hesitate to ask for more demos! ● Contact: Dr. Thierry Badard, CTO Spatialytics inc. Quebec, Canada Email: tbadard@spatialytics.com Web: http://www.spatialytics.org http://www.spatialytics.com Twitter: tbadard & spatialytics http://www.geokettle.org Twitter : geokettle http://www.geo-mondrian.org Twitter : geomondrian http://www.solaplayers.org Twitter : solaplayers