GfossDAY2011 GeoServer Presentation

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

Ing. Andrea Aime, GeoSolutions
Ing. Simone Giannecchini, GeoSolutions

GFOSS DAY 2011, Foggia
25 Novembre, 2011

Outline
 GeoSolutions
 GeoServer 2.1
 User Interface

 Security

 Administration

 OGC Services

 Extensions and Additional Modules

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GeoSolutions
 Founded in Italy in late 2006
 Expertise
• 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…

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GeoServer
 GeoSpatial enterprise gateway
 Java Enterprise
 Management of raster and vector data
 Standards compliant
 OGC WCS 1.0 - 1.1.1 (RI)
 OGC WFS 1.0 - 1.1 (RI), 2.0 ongoing
 OGC WMS 1.1.1, 1.3
 OGC WPS 1.0.0
 Google Earth/Maps support
 KML, GeoSearch, etc..

25 Novembre, 2011

----------
----------
----------
---------
PNG, GIF
----------
Shapefile ----------
--------- WMS JPEG
---------- 1.1.1 TIFF,
1.3.0 GeoTIFF
Formats and Protocols
Vector files
PostGIS SVG, PDF
Oracle Styled KML/KMZ
Google* maps
H2
DB2
SQL Server Shapefile
MySql WFSv* GML2

GeoServer
Spatialite GML3
DBMS
GeoCouch WFS GeoRSS
1.0, 1.1, Raw vector GeoJSON
data
2.0 CSV/XLS
ArcSDE
WFS WPS
1.0.0 GeoTIFF
Servers WCS ArcGrid
GeoTIFF 1.0 GTopo30
WMS 1.1.1 Raw raster
Img+World
ArcGrid data
GTopo30 GWC
Img+world (WMTS, KML superoverlays
Mosaic Raster files TMS, Google maps tiles
MrSID WMS-C) OGC tiles
JPEG 2000
ECW,Pyramid, Oracle GeoRaster, … OSGEO tiles

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Architecture

WCS WMS WFS WFSv REST Google GWC

GeoTools

ImageIO JAI JTS

GDAL Kakadu JAITools

Vector Style Raster
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Integrated Security

 Spring Security
 RBAC on layers and services
 Built-in version with simplified rules

namespace.layer.mode=role1,role2,...

A name, or * to r: read The roles that will
mean “any” w: write be authorized to
access the data
under this rule
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Integrated Security

*.*.r=*
RDONLY
*.*.w=NO_ONE lock down

private.*.r=TRUSTED_ROLE
private.*.w=TRUSTED_ROLE Per-layer
override
topp.districts.w=LEGISLATORS

topp. Other
private.* topp.* districts layers
TRUSTED_ROLE r/w r r r
LEGISLATORS (no access) r r/w r
(all other users) (no access) r r r

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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, open source
implementation needed!

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GeoRepository

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RESTful Configuration
 Programmatic configuration of layers via REST
calls
 Workspaces
 DataStores/CoverageStores
 Layers and Styles
 Exposing internal configuration to remote clients
 Ajax-JavaScript friendly
 “Core” Module since 2.1
 Integrated Security
 Admin credentials required for modifications

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WFS
 Dissemination and filtering of vector data
 WFS 1.0 and 1.1 support with transactions
 Formats:
 GML 2, 3.1 e 3.2
 GeoRSS, GeoJSON
 Shapefile (zipped)
 OGR (configurable)

 Extensions
 CQL
 WFS 1.0 with on-the-fly reprojection
 WFS 2.0 on the unstable branch!
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WCS*
 Raster data dissemination
 Raw raster data useful for analysis, no maps!
 Support for TIME and ELEVATION (via ImageMosaic plugin)

 WCS 1.0 e 1.1.1
 Output formats
 GeoTiff, ArcGrid
 GDAL based formats*

 Extensions
 ELEVATION as band management*

 Refactor Ongoing!

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WMS
 Dissemination of Maps
 Fusing raster and vector data seamlessly
 With styling!

 WMS 1.1.1 and 1.3 support
 INSPIRE!
 SLD
 Basic support for SLD 1.1 and SE 1.1
 Full support for SLD 1.0
 Many rendering extensions available!
 Integration with GeoWebCache
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KML/KMZ

TEMPORAL SERIES

KML EXTRUDE KML SUPEROVERLAY

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Advanced Projection Handling

Management of dateline
Change and
map-wrapping

Cutting un-reprojectable
geometries

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Raster Symbolizer

Raw 256
Data Colors

65536
Colors

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

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

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ImageIO-Ext Support
 JAI ImageIO Extension
 Plugins:
 BigTiff
 netCDF-CF, GriB1

 MatFile 5
 HDF4
 JP2000 (Kakadu)

 GDAL 1.7.3

 GDAL integration via ImageIO-ext
 JPEG2000,MrSID, ECW
 BigTIFF, ERDAS Image, HDF4

25 Novembre, 2011

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

25 Novembre, 2011

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
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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:2000000;high:5000000
 Default values for parameters
 Validation with regular expressions

25 Novembre, 2011

Improved Clustering
 New parameters to allow multiple GeoServers to work
against the same network shared data directory
 Per server log file location
 Disabling GWC meta store
 Disabling GWC disk quota management
 GeoWebCache Enhancements
 disable the embedded GWC completely,
 hide the embedded GWC to the public
 keep the embedded GWC only for fast layer seeding
 only one GWC at a time is allowed to write on disk

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Virtual Services
 Expose multiple OGC service endpoints per installation
 One virtual service per workspace
 Expose only layers defined in such workspace

 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
 Service metadata (point of contacts and the like) still configured
centrally

25 Novembre, 2011

WMS* Cascading
 GetMap and GetFeatureInfo
Cascading
 Support for reprojection
on-the-fly
 GUI based mass import of
remote layers
 TODO: Securing unsecure
WMS Services

25 Novembre, 2011

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

25 Novembre, 2011

WPS*
 Deficiencies
 No support for asynchronous requests
 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)

25 Novembre, 2011

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:404000
 See here
 Improved support for data with
bad/missing geo-reference!

25 Novembre, 2011

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

25 Novembre, 2011

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!

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The End

Questions?
simone.giannecchini@geo-solutions.it
http://demo.geo-solutions.it/share/osgis2011/
25 Novembre, 2011

Administration GUI

25 Novembre, 2011

GUI: security configuration

25 Novembre, 2011

 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
25 Novembre, 2011

RESTful Configuration

Automatic Configuration Styles
of recurring flows of data Javascript
client
GeoBatch

GeoServer

Server side Desktop
scripts Mass
app
publishing of
Layers Layers
Publishing
25 Novembre, 2011

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

25 Novembre, 2011

Dynamic symbolizers

25 Novembre, 2011

Advanced Styling

Advanced Labeling

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Advanced Styling

Geometry
Filter Functions Transformations

Drop
Number Shadow
Formatting

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Advanced Styling

Continuous Maps

CSS Styling
<PolygonSymbolizer>
<Fill> 
<CssParameter name="fill">#4DFF4D</CssParameter>
<CssParameter name="fill-opacity">0.7</CssParameter>
</Fill>
</PolygonSymbolizer>

25 Novembre, 2011

WMS - CQL
 GeoServer WMS – CQL Examples
 STATE_NAME = 'Montana'

 MALE > FEMALE

 LAND_KM > 300000

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WMS TIME and ELEVATION

TIME = 20100512T0000000Z
ELEVATION = 0.0

FeatureType Editor

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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

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WPS: demo builder

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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)

25 Novembre, 2011

WMS Animator
 Animations for WMS requests across custom GetMap
params
 Controlled via aparam/avalues couples
 Generates multiple frames through multiple GetMap requests
 http://localhost:8080/geoserver/wms/animate?LAYERS=topp%3Aworld&apara
m=time&avalues=2004-01-01T00:00:00.000Z,,2004-07-
01T00:00:00.000Z&format=image/gif;subtype=animated&format_options=gif_l
oop_continuosly:true

25 Novembre, 2011

GfossDAY2011 GeoServer Presentation

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