providing interoperability using the open geoservices rest … · 2014-06-04 · providing...
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Providing Interoperability Using the Open GeoServices
REST Specification Satish Sankaran
Kevin Sigwart
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Agenda
Esri’s participation in Standards Bodies
Interoperability Challenges - Tackling Interoperability challenges using Service Standards
Service Standards - The Open GeoServices REST Specification - The W*S Open Geospatial Consortium Standards
ArcGIS Online – Leveraging Interoperability
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ESRI Participates in Many Standards Organizations
ISO
OGC
ANSI/INCITS
OASIS
IHO
WS-I
OMA
FGDC
GSDI
CEN
DGIWG ACSM ASPRS EPSG
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ISO Participation • ESRI provides leadership role in ISO TC 211 Standards Development:
- ISO 19115: Metadata (Project Leader) - ISO 19115-2: Metadata – Imagery extension (Editor) - ISO 19125: Simple Feature Access (Editor)
- Part 1 – Common Architecture - Part 2 – SQL Option
- ISO 19139: Metadata – Implementation Specification (Project Leader – supported Editor/committee process)
- ISO 19142 : Web Feature Service ( Editing committee member representing USA) - ISO 19143 : Filter Encoding ( Editing committee member representing USA)
• Provide technical experts on many WI project teams
• Harmonization with ISO JTC SC 32: ISO/IEC 13249-3: 1999
- SQL Multimedia and Application Packages – Part 3: Spatial
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• ESRI - Principal member - Actively participates:
- Technical Committee - Planning Committee - Board of Directors - All three OGC programs
- Interoperability program - Standards program - Community Outreach and Adoption program
- Current chair - Metadata Working Group - Web Map Service Working Group
- Has an elected member in the OGC Architecture Board
OGC Participation
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Interoperability
• Challenges
- Multiple Platforms ( Operating Systems, Databases, …)
- Multiple Architecture ( Local, Enterprise, Web, Cloud,…)
- Multiple Clients ( Desktop, Web, Mobile, …)
- Multiple Developer Environments (.NET, Java,…)
- Multiple Protocols (SOAP, REST, OGC,….)
- Multiple Encodings ( XML, Raster Formats, GML, JSON, ….)
Cloud
Enterprise
Local
• Create • Manage • Visualize • Analyze • Collaborate • Discover
Mobile
Desktop
Web
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ArcGIS
Easier More Powerful and Everywhere
Cloud
Enterprise
Local
• Discover • Create • Manage • Visualize • Analyze • Collaborate
Mobile
Desktop
Web
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File GDB
Open API’s / Open Specifications SOAP
WCS ISO
KML
WFS
WWW
SQL
INSPIRE
Standards
OGC
WMS
Open Data Access
ArcGIS - is Open & Interoperable
Shapefile
Geoservices REST
Vendor Specific Files
ETL
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Interoperability Enablers
• Data Standards - Simple Features Model, …
- WKT, WKB, Spatial Types, GML, netCDF, …
• Metadata Standards - ISO 19115, 119, 139, FGDC, ….
• Service Standards
- GeoServices REST Specification
- OGC Web Services - WMS, WFS, WCS, CS-W, WMTS, WPS
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Digital Government Strategy
• Make Open Data, Content, and Web APIs the New Default.
• Make Existing High-Value Data and Content Available through Web APIs
• ….from Digital Government - Building a 21st Century Platform to Better Serve the American People
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Interoperability
• Challenges
- Multiple Platforms ( Operating Systems, Databases, …) - Multiple Architecture ( Local, Enterprise, Web, Cloud,…) - Multiple Clients ( Desktop, Web, Mobile, …) - Multiple Developer Environments (.NET, Java,…) - Multiple Protocols (SOAP, REST, OGC,….) - Multiple Encodings ( XML, Raster Formats, GML, JSON, ….)
• Solution - Build interoperable Web services across platforms,
applications, and programming languages.
Cloud
Enterprise
Local
• Create • Manage • Visualize • Analyze • Collaborate • Discover
Mobile
Desktop
Web
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Powerful GIS capabilities
Delivered as Web services
To help solve real problems
ArcGIS Server
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ArcGIS for Server
Web Server
Publisher
Web, Mobile and Desktop Clients
Administrator
Web Adaptor
Data Server
GIS Server(s)
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ArcGIS Server -
ArcGIS Server
Building open and interoperable Systems
ArcGIS Online
ArcGIS for Desktop
ArcGIS for Mobile
Esri Client Solutions
Google Maps
Microsoft VE
Yahoo Maps
Popular Mass market Mapping Environments Intergraph
Autodesk
PitneyBowes
GIS Software
Python
php
Ruby
Solution Developer Frameworks
SAP
Sharepoint
IBM WebSphere Portal
Business Applications
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SOAP
REST
OGC
Internet
Catering to Multiple Communities: Spatial Data Infrastructures (SDI) Enterprise Architectures (EA) Neogeography/ Mashup (WEB 2.0)
Supporting Multiple Protocols
- Representational State Transfer (REST)
- Simple Object Access Protocol (SOAP)
- Open Geospatial Consortium (OGC)
ArcGIS Server - Building open and interoperable Systems
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REST Internet
ArcGIS Server - Building open and interoperable Systems
Representational State Transfer (REST)
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REST – The Elevator Pitch
4 Key Principles*
Identification Of Resources Everything is a URL
Manipulation Of Resources Through Representations
Exchange standard formats using standard verbs
Self-Descriptive Messages Every request asks the full question, every response includes the full answer
Hypermedia As The Engine Of Application State
Hyperlinks <a href=“url”>Yeah!</a>
http://www.intertwingly.net/blog/2198.html
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ArcGIS Server -
ArcGIS Server
Building open and interoperable Systems
Javascript
Flex
Silverlight Google Maps
Microsoft VE
Yahoo Maps
iOS
Android
Windows Mobile
Python
php
Ruby
REST Services SAP
Sharepoint
IBM WebSphere Portal
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ArcGIS Server – REST API
• The ArcGIS Server REST API provides a simple, open Web interface to services hosted by a Server.
• All GIS Services are exposed as resources
• All resources exposed by the REST API are accessible through a hierarchy of endpoints or Uniform Resource Locators (URLs) for each GIS service published with the Server.
• Some resources have operations - Ex. Map Resource (export, find, identify)
Example: http://sampleserver3.arcgisonline.com/arcgis/rest/services
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Types of GIS Services
Map
View or query a 2D map on the server
Geocode
Perform address matching on the server
Geometry
Provides geometric calculations such as buffer, simplify, and project.
Geoprocessing
Provides spatial analysis and data processing services.
Image
Provide access to raster data though a Web service
Feature
Provide access to feature querying and editing
…….
http://resources.arcgis.com/content/web/gis-services
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Client Libraries – Consuming the REST Services
• Client Libraries
• ArcGIS Developer Tools support for REST API
- Web API
- ArcGIS API for JavaScript - ArcGIS API for Flex . - ArcGIS API for Silverlight
- Mobile Runtime SDK’s
- ArcGIS Runtime SDK for iOS - ArcGIS Runtime SDK for Windows Phone - ArcGIS Runtime SDK for Android
REST
Web Link
REST
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Open Layers - Supporting ArcGIS REST Services
http://openlayers.org/dev/examples/arcgis93rest.html
ArcGIS Server
Open layers
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GDAL - Supporting ArcGIS REST Features Services
• “Starting with OGR 1.8.0, the GeoJSON driver can read the JSON output of Feature Service request following the GeoServices REST Specification, like implemented by ArcGIS Server REST API”
http://www.gdal.org/ogr/drv_geojson.html
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ArcGIS Server’s REST API is an “Open” Specification
The Geoservices REST Specification
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Esri – Open Specifications
http://www.esri.com/library/whitepapers/pdfs/shapefile.pdf
http://www.esri.com/library/whitepapers/pdfs/geoservices-rest-spec.pdf
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….in Progress
• The Geoservices REST Specification has been submitted to the OGC for Consideration
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Can I support Esri’s REST Specification on my non ArcGIS Server Platform ?
GeoServices REST
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Arc2Earth and the Geoservices REST Specification
https://www.arcgis.com/home/webmap/viewer.html?webmap=e1cdc4855ea54edf8ff9451e32fff5cb
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Geometry Service
http://dl.dropbox.com/u/35158796/REST%20Demo1.wmv
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ArcGIS Server -
ArcGIS Server
Building open and interoperable Systems
Javascript
Flex
Silverlight Google Maps
Microsoft VE
Yahoo Maps
iOS
Android
Windows Mobile
Python
php
Ruby
REST Services SAP
Sharepoint
IBM WebSphere Portal
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ArcGIS Server -
Google Earth
ENVI
Imagine
MapInfo
Ionic GeoMedia
ArcGIS Server
ArcGIS Desktop
ArcGIS Online ArcExplorer
Gaia
gvSig
OpenLayers
uDig QGIS
AutoCAD
OGC Services
Building open and interoperable Systems
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OGC Internet
ArcGIS Server - Building open and interoperable Systems
Open GeoSpatial Consortium (OGC)
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OGC Standards
WMS
WMTS
WCS
WFS
WPS
OGC Services
KML
Web Map Service Web Map Tiling Specification Web Coverage Service Web Feature Service Web processing service OGC Keyhole Markup Language
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OGC Support in ArcGIS Server
Map Service
Tiled Map Service
Geoprocessing Service
Image Service
Feature Service
ArcGIS Server
WMS
WMTS
WCS
WFS
WPS
• Inherits from ArcGIS Server
- Cartography - Security Framework - Performance & Scalability - Authoring, Publishing & Sharing
OGC Services
KML
WMTS and WPS Support – New in 10.1
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OGC / ISO standards support ( ArcGIS 10.1)
• WMS + SLD + Filter Encoding Support + Time Support
• WFS + Transactions + Filter Encoding Support
• WCS +GeoTiff, NITF, HDF, JPEG, JPEG2000, PNG
• WMTS + REST & KVP Encoding
• WPS
+ Synchronous + Asynchronous + Data and Services as
inputs
• CSW + OGC Core + ISO 19139 + ebRIM
http://www.esri.com/library/whitepapers/pdfs/supported-ogc-iso-standards.pdf
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ArcGIS Support for OGC Web services
• Server - ArcGIS Server - Esri Geoportal Server - ……
• Client - Desktop Applications - API’s - Viewers - …..
• More Information
• ESRI Web Site : White papers, Product Support Matrix, OGC compliancy
- http://www.esri.com/standards
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ArcGIS 10.1 – OGC Compliancy
Compliancy Certificates available for WMS WFS WCS CS-W Simple Features
http://www.opengeospatial.org/resource/products/compliant#ESRI
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ArcGIS Online
A complete, cloud-based, collaborative content management system for working with geographic information.
Supporting Interoperability thru GeoServices REST Specification, OGC WMS, CSV, OGC KML, OGC WMTS, ….
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GIS
• Creating and Managing Geo Information Products - Proprietary - Open Specifications - Standards
• Dissemination of Geo Products
- Proprietary - Open Specifications - Standards
Shapefiles
Geoservices REST Specification
Geoservices REST Specification
Open FGDB Api
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Thank you!