GeoServer, The Open Source Solution for the interoperable management of geospatial data

Transcription

1 GeoServer, The Open Source Solution for the interoperable management of geospatial data Ing. Andrea Aime, GeoSolutions Ing. Simone Giannecchini, GeoSolutions

2 Founded in Italy in late 2006 Expertise GeoSolutions Image Processing, GeoSpatial Data Fusion Java, Java Enterprise, C++, Python JPEG2000, JPIP, Advanced 2D visualization Supporting/Developing FOSS4G projects GeoTools, GeoServer GeoNetwork, GeoBatch ImageIO-Ext Focus on Consultancy agencies, large private companies, etc

3 Outline GeoSolutions GeoServer Quick introduction OGC services Data access news Security

4 GeoServer quick intro

5 GeoServer GeoSpatial enterprise gateway Java Enterprise Management of raster and vector data Standards compliant OGC WCS (RI) OGC WFS (RI), 2.0 OGC WMS 1.1.1, OGC WPS Google Earth/Maps support KML, GeoSearch, etc..

6 Formats and Protocols GeoServer Shapefile PostGIS Oracle H2 DB2 SQL Server MySql Spatialite GeoCouch ArcSDE WFS Vector files DBMS Servers GeoTIFF WMS ArcGrid GTopo30 Img+world Mosaic Raster files MrSID JPEG 2000 ECW,Pyramid, Oracle GeoRaster, WMS Google* WFSv* WFS 1.0, 1.1, 2.0 WPS WCS GWC (WMTS, TMS, WMS-C) Styled maps Raw vector data Raw raster data PNG, GIF JPEG TIFF, GeoTIFF SVG, PDF KML/KMZ Shapefile GML2 GML3 GeoRSS GeoJSON CSV/XLS GeoTIFF ArcGrid GTopo30 Img+World KML superoverlays Google maps tiles OGC tiles OSGEO tiles

7 Architecture WCS WMS WFS WPS REST Google GWC GeoTools ImageIO JAI JTS GDAL Kakadu JAITools Vector Style Raster

8 Administration GUI

9 RESTful Configuration Programmatic configuration of layers via REST service calls Workspaces DataStores/CoverageStores Layers and Styles Exposing internal configuration to remote clients Integrated Security Admin credentials required for modifications Client libraries: GeoServer Manager (Java), gsconfig.py (Python)

10 RESTful Configuration GeoBatch Automatic Configuration of recurring flows of data Styles Javascript client GeoServer Server side scripts Mass publishing of Layers Layers Publishing Desktop app

11 Virtual Services Expose multiple OGC service endpoints per installation One virtual service per workspace Expose only layers defined in such workspace Configure service metadata (point of contacts and the like) per workspace (only on 2.2.x) Use cases: Provide clients with focused/theme centered data sets Provide each department of a single organization with its own set of services Limitations: Single administrator for the whole server

12 OGC Protocols

13 Dissemination of Maps WMS Fusing raster and vector data seamlessly With styling! WMS and 1.3 support SLD Basic support for SLD 1.1 and SE 1.1 Full support for SLD 1.0 Geo-CSS (community module) Many rendering extensions available! Integration with GeoWebCache

14 KML/KMZ TEMPORAL SERIES KML EXTRUDE KML SUPEROVERLAY

15 New projections

16 Advanced Projection Handling Management of dateline Change and map-wrapping Cutting un-reprojectable geometries

17 Advanced Styling Filter Functions Geometry Transformations Number Formatting Drop Shadow

18 Rendering transformations On-the-fly data transformations Calling WPS processes from SLD docs Optimized for performance

19 Rendering transformations Point feature extraction from two band raster data (e.g. Wind(u,v)) Computation of direction and module from SLD

20 Time and elevation support Available on 2.2.x Supports both vector (fields) and rasters (mosaics with time/elevation associated to tiles) GetMap&time= T18:00:00Z/ T00:00:00Z GetMap&time= T18:00:00Z/ T00:00:00Z

21 WMS Animator Animations for WMS requests across custom GetMap params Controlled via aparam/avalues couples Generates multiple frames through multiple GetMap requests m=time&avalues= t00:00:00.000z,, T00:00:00.000Z&format=image/gif;subtype=animated&format_options=gif_l oop_continuosly:true

22 Cross-Layer filtering querylayer community module Find all sites within 100 meters from roads Single CQL filter with WMS: DWITHIN( the_geom, collectgeometries( querycollection('roads', 'the_geom', 'INCLUDE') ), 200, meters)

23 INSPIRE INSPIRE community module Adds new layer metadata fields Integrate the WMS capabilities documents to support the INSPIRE requirements

24 WMS Cascading Cascade WMS 1.1 and WMS 1.3 Auto-fill metadata based on caps document GetMap and GetFeatureInfo Cascading Support for reprojection on-the-fly GUI based mass import of remote layers Support for secured remote WMS services

25 WFS Dissemination and filtering of vector data WFS 1.0 and 1.1 support with transactions WFS 2.0 on the 2.2.x series Formats: GML 2, 3.1 e 3.2, CSV, GeoRSS, GeoJSON Shapefile (zipped), OGR (via ogr2ogr, configurable) Extensions CQL WFS 1.0 with on-the-fly reprojection Paging and sorting in WFS 1.0 and 1.1

26 WFS paging service=wfs&version=1.0.0&request=getfeature &typename=topp:states&outputformat=csv &propertyname=state_name,persons &maxfeatures=10&startindex=10 #FID,STATE_NAME,PERSONS states.11,arizona, states.12,oklahoma, states.13,north Carolina, states.14,tennessee, states.15,texas, states.16,new Mexico, states.17,alabama, states.18,mississippi, states.19,georgia, states.20,south Carolina,

27 WCS* Raster data dissemination Raw raster data useful for analysis, no maps! Support for TIME and ELEVATION (via ImageMosaic plugin) WCS 1.0 e Output formats GeoTiff, ArcGrid GDAL based formats* Extensions ELEVATION as band management*

28 WCS: request builder and limits

29 WPS WPS 1.0 Official Extension Raster and Vector data support High performance processes development (raster/vector statistics, raster/vector format conversions and more) Supports asynchronous requests Integrated WPS Automatic publishing of results Embedding processes into SLD styles Reuse processes as rendering transformations

30 WPS: news

31 WPS* Deficiencies Missing request limits enforcements (e.g. input/output maximum dimensions) Wish list: Scripting (Jython, GeoScript) Sextante, IDL, JGrass (Grass?) integration Improved robustness Jiffle (jai-tools) based raster algebra Create new layers as dynamic WPS processes (computing data on the fly as requested)

32 Data

33 New/improved vector stores Teradata (large databases + analytics/business intelligence) SQL Server: improved performance, added support for SQL Azure GeoCouch* (couch db) GeoGit* (distributed versioning) Simple Feature Service* client (aka MapFish++ protocol) New OGR data store* Aggregating data store* *: new/experimental

34 Aggregating data store N layers, remote or local, sharing the same structure Aggregating store puts them together dynamically, the client will think there is just one layer Parallel data fetching Can be configured to tolerate temporarily unreachable data sources

35 SQL Parametric Views SQL View as a GeoServer Layer No need to actually creating a view in the database View can be parametric WMS and WFS allow parameter substitution.&request=getmap&viewparams=low: ;high: Default values for parameters Validation with regular expressions

36 ImageIO-Ext Support JAI ImageIO Extension Plugins: BigTiff netcdf-cf, GriB1 MatFile 5 HDF4 JP2000 (Kakadu) GDAL GDAL integration via ImageIO-ext JPEG2000,MrSID, ECW BigTIFF, ERDAS Image, HDF4

37 Image Server* Turning GeoServer into an Image Server Serving pure Imagery No geo-reference need/available/(would make sense!) Special Coordinate Reference Systems defined Interoperability with WMS clients Respecting EPSG conventions EPSG: See here Improved support for data with bad/missing geo-reference!

38 Security

39 Integrated Security Spring Security RBAC on layers and services Built-in version with simplified rules namespace.layer.mode=role1,role2,... A name, or * to mean any r: read w: write The roles that will be authorized to access the data under this rule

40 Security Developments in 2.1 Security Management at the feature level (record in DBMS) read and write filtering Hide sensible attributes Discriminate visible areas on a per-user basis Rules for services and layers Server side framework available, but no integrated solution leveraging it. External tools available: GeoRepository, GeoShield

41 GeoRepository GeoRepository

42 Database level security Some enterprises want to control security at the database level (instead of at the application level) The connection pool user gets very limited rights Pass down the current GeoServer user to the database via SQL script

43 Security Developments in 2.2.x Some new security advances are in the works on the unstable series, will be available in 2.2.0: Pluggable authentication layer (use authentications others than HTTP BASIC ones) Pluggable user/roles database Password encryption in configuration files

44 The End Questions?

45 Raster Symbolizer Raw Data 256 Colors Colors

46 Administration GUI

47 GUI: security configuration

48 Integrated Security *.*.r=* *.*.w=no_one RDONLY lock down private.*.r=trusted_role private.*.w=trusted_role topp.districts.w=legislators Per-layer override private.* topp.* topp. districts Other layers TRUSTED_ROLE r/w r r r LEGISLATORS (all other users) (no access) r r/w r (no access) r r r

49 Security Developments in 2.1 GSIP 57 extended authorization management GeoRepository Role Base Access Control Services Operations Layers Attributes (alphanumeric and geospatial) External Web Application Web Services + UI Rule-based IPTables-like

50 Complex Feature* Application/community schemas Complex Features Attributes as sub-features Attributes as list of features Tree-like structure Heterogeneous data sources INSPIRE!

51 Dynamic symbolizers

52 Advanced Labeling Advanced Styling

53 WMS - CQL GeoServer WMS CQL Examples STATE_NAME = 'Montana' MALE > FEMALE LAND_KM >

54 WMS TIME and ELEVATION TIME = T Z ELEVATION = 0.0 FeatureType Editor

55 Raster Pyramids Preprocessing raster data for performance Multiple resolutions levels Scale decide best resolution level Multiple file (tiles) per resolutions level File Based Pyramids Support DBMS-based Pyramids Postgis DB2 Oracle (GeoRaster) MySQL

56 WPS: demo builder

57 Improved Raster Reprojection Raster reprojection complex process Idea: try to approximate the overall transformation with a simpler one, either a single affine transformation or a piecewise composition of them (grid warp) Ability to specify threshold for error acceptance Iterative approach (local optimization) Trade off between speed and precision

58 GeoWebCache Integration GeoServer GeoWebCache Persistent raster/kml tile cache Direct calls to GeoServer rendering engine Support for layers modified through WFT-T Support for various tile protocols GMap, Gearth OpenLayers, VEarth, Bing Speed-up factor 10/100 Disk quota support

59 GeoServer in da Cloud Standing Cloud Admin-Free Cloud Infrastructure Paas from Amazon, GoGrid, Linode, etc Pay per use Elastic resources at hand GeoServer SaaS Deploy and admin with UI No sysadmin skills Shell available for braves!