architecture of iode odp v2 dr. sergey belov, et al. partnership centre for the iode ocean data...
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Architecture of IODE ODP V2
Dr. Sergey Belov, et al.Partnership Centre for the IODE Ocean Data Portal
MINCyT, Buenos Aires, Argentina, 7 – 11 October 2013
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IntroductionOcean Data Portal is not creating a new data system. ODP technology
provides an access to local data systems with a wide variety of structures, formats, coding systems and data storage types. ODP network links together two categories of components:
Data components, based on existing national, regional,
global data systems.
ODP data integration and dissemination components
Service-oriented
architecture
Service-oriented
architecture
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Component viewpoint
ODP V2 being unified distributed system is a set of interacting components.
Telecom
Hardware Software Information
Business layerBusiness layer
Presentation layerPresentation layer
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Component viewpoint
Component consists of a set of tools:
telecommunication equipment (routers, connectors, firewalls, etc.);
computing equipment (servers, workstations);
software - operating system, environment of operation (application servers, web-servers, etc.), specialized software;
information resources (data sets and metadata).
Each component fulfills certain services grouped by following layers:
interface layer (data exchange with data sources and other components);
business logic layer (data conversion, metadata generation, etc.);
presentation layer - a visual (tabular, graphical and map) presentation of information in graphical interfaces for ODP end users.
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ODP V2 components
Data Cache
Integration Server
Data Provider
Integration, delivery, exchange
Portal
Portlets
Presentation
Monitoring
Service Bus
ManagementSecurity
Global nodeGlobal node
Regional nodeRegional node
National nodeNational node
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ODP V2 technical architecture
ODP V2 components are developed and operates using ONLY open-source and (L)GPL software!
Operational environment: OS – CentOS 5.8 Linux Virtualization – VMware ESXi 5 Database – PostgreSQL 8 Application server – JBoss 4/5 Platform – Java 6/7 Portal software – JBoss Portal 2.7 AAA – (Single-sign-on) JOSSO Metadata service- GeoNetwork 2.7
JOSSO Identity Provider
Security
Users Administrators
Service Bus
Thematic Portlets
PORTAL
Service portlets
Administration
Database
Metadata Service
Distribution
Harvesting
Conversion CSW
HTTP
HTTP
SOAP
JDBC
JDBC
Metadata access Data
access
Subscription
GIS
Integration Server
Request
Third-party software
ODP components
Retrieval Collection Replication
System management Dissemination
Data Cache
SOAP FTPEmail
Data Provider
Metadata creation
Data connection
DatabaseFiles
HTTP FTPOGC
HTTP/SOAP
SOAP
Cont
rol
Monitoring
StatisticsMessaging
JDBC
SOAP
SeaDataNet
WIS
GEOSS
….
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ODP V2 functional entities
ODP V2 toolkit is a complete set of components used for “plug and play” of the ODP node. Specific composition of the ODP V2 components is building an ODP node.
Data Cache
Integration Server
Data Provider
Integration, delivery, exchange
Portal
Portlets
Presentation
Monitoring
Service Bus
ManagementSecurity
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Integration, data provision and delivery - Data Provider
Major functions: Connection and processing of local
data sources; Creation and provision of discovery
metadata; Discovery metadata update
according to data updates; Automatic “data-metadata”
bridging; Data transformation (for structured
data) into NetCDF format (cache mode, on request, on data update event)
Processing of requests for data and products;
JOSSO Identity Provider
Security
Users Administrators
Service Bus
Thematic Portlets
PORTAL
Service portlets
Administration
Database
Metadata Service
Distribution
Harvesting
Conversion CSW
HTTP
HTTP
SOAP
JDBC
JDBC
Metadata access Data
access
Subscription
GIS
Integration Server
Request
Third-party software
ODP components
Retrieval Collection Replication
System management Dissemination
Data Cache
SOAP FTPEmail
Data Provider
Metadata creation
Data connection
DatabaseFiles
HTTP FTPOGC
HTTP/SOAP
SOAP
Cont
rol
Monitoring
StatisticsMessaging
JDBC
SOAP
SeaDataNet
WIS
GEOSS
….
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Integration, data provision and delivery - Data Provider
Features:Provides support for following data
storage types: SQL-oriented databases; CSV-like structured data files (CSV,
TSV and derivatives); Fixed position structured files
(IMMT-3, ARGO, etc.); Any unstructured data files (or
unrecognizable by ODP services) – multimedia, documents, etc.
Web links WMS, WFS services (under
development)
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Integration, data provision and delivery - Data Provider
Features:Support for a various types of data
granularity
i.e. makes it possible to create discovery metadata, search and deliver full datasets or subsets ( single cruise, number of profiles, single profile, profiles with required parameters, etc.)
Data granule
Data subset
netCDF
netCDF
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Integration, data provision and delivery – Light Data Provider
Features:Pro No installation is required Online access with dedicated
username and password using facility of existing Data Provider installation
Same functionality with usual Data Provider except absence of database support
One usual Data Provider can host multiple centres through the Light functionality
Contra Management functions are
unavailable Storage quota should be agreed with
hosting side No database support available
Data granule
Data subset
netCDF
netCDF
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Integration, data provision and delivery - Data Provider – user interface examples
Metadata entry online tool – identification and data connection step
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Integration, data provision and delivery - Data Provider – user interface examples
Information on platforms, processing level, spatial & temporal resolution, quality info, distribution info
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Integration, data provision and delivery - Data Provider – user interface examples
Temporal, vertical and spatial extents of the data (can be calculated from data automatically)
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Integration, data provision and delivery - Data Provider – user interface examples
Data connection interface – structured files
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Integration, data provision and delivery - Data Provider – user interface examples
Data connection interface – files (local, upload, remote)
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Integration, data provision and delivery - Data Provider – user interface examples
Data connection interface – files, fields mapping
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Integration, data provision and delivery - Data Provider – user interface examples
Data connection interface – SQL database
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Integration, data provision and delivery - Data Provider – user interface examples
Metadata catalogue management – publish/block, test, set data scan -> metadata update schedule, validate, check completeness, add/remove/edit
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Integration, data provision and delivery - Data Provider – user interface examples
Data catalogue management – view parent/child metadata, edit/remove, view ASCII, NetCDF
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Integration, data provision and delivery - Integration Server
Major functions: Metadata harvesting (on
demand,schedule, event-driven) Metadata catalogue services (HTTP,
SOAP, CSW) Request for data processing - data
location calculation, call for data, data retrieval and transformation (netCDF -> ASCII, zip, etc.)
Data submission for Data Cache Data dissemination according to the
distribution catalogue (service-based)Additional functions: Data provider network monitoring Metadata backup and restore Data cache backup and restore
JOSSO Identity Provider
Security
Users Administrators
Service Bus
Thematic Portlets
PORTAL
Service portlets
Administration
Database
Metadata Service
Distribution
Harvesting
Conversion CSW
HTTP
HTTP
SOAP
JDBC
JDBC
Metadata access Data
access
Subscription
GIS
Integration Server
Request
Third-party software
ODP components
Retrieval Collection Replication
System management Dissemination
Data Cache
SOAP FTPEmail
Data Provider
Metadata creation
Data connection
DatabaseFiles
HTTP FTPOGC
HTTP/SOAP
SOAP
Cont
rol
Monitoring
StatisticsMessaging
JDBC
SOAP
SeaDataNet
WIS
GEOSS
….
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Integration, data provision and delivery - Integration Server – user interface examples
Data providers management and monitoring
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Integration, data provision and delivery - Integration Server – user interface examples
Consolidated metadata catalogue
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Integration, data provision and delivery - Integration Server – user interface examples
Consolidated metadata catalogue
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Integration, data provision and delivery - Integration Server – user interface examples
Consolidated metadata catalogue
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Integration, data provision and delivery - Integration Server – user interface examples
Real-time metadata & data update and delivery monitoring
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Integration, data provision and delivery - Integration Server – user interface examples
Management of data dissemination catalogue
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Integration, data provision and delivery - Integration Server – user interface examples
System management and reporting tools – settings, access to logs
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Integration, data provision and delivery – Data Cache
Major functions: Centralized data
storage facility for essential data and backup data acces
Event-driven update model;
Data access facility (SOAP, HTTP) for ODP Portal services;
Graphical user interface for accessing Data Cache is provided via Integration Server
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Global Node
Regional Node 1 Regional Node N
National Node 1National Node N
databases files products services
3. harvesting
4. Broadcast signal (SOAP)
4. Broadcast signal
4. Broadcast signal
5. Harvesting (SOAP)
5. Harvesting
5. harvesting
Metadata “broadcasting” model
1. Metadata add/update/delete
2. Event signal (SOAP)
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Global Node
Regional Node 1 Regional Node N
National Node 1
databases files products services
1. Data update
2. Event signal4. Subscriptions check5. Data pull (REST)6. Caching & conversion7. Data user delivery (FTP, SMTP, WS)
3. Broadcast signal
Data dissemination model
4. Subscriptions check5. Data pull (SOAP)6. Caching & conversion7. Data user delivery (FTP, SMTP, WS)
4. Subscriptions check5. Data pull (SOAP)6. Caching & conversion7. Data user delivery (FTP, SMTP, WS)
3. Broadcast signal
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Metadata serviceMajor functions: Metadata standards
(ISO19115/ISO19119/ISO19110 following ISO19139, FGDC and Dublin Core)
Harvesting and synchronization of metadata from external metadata catalogs (OGC-CSW 2.0.2 ISO Profile, OAI-PMH, Z39.50 protocols)
Catalog interfaces (OGC-CSW2.0.2 ISO profile client and server, OAI-PMH client and server, GeoRSS server, GEO OpenSearch server, WebDAV harvesting, GeoNetwork to GeoNetwork harvesting support)
More information about Geonetwork at
www.geonetwork-opensource.org
databases files products services
ODP Data Provider
METADATA CATALOGUE
Service layer
SOAP REST HTTP FTP
Metadata import
CSW
Events: add, update, delete, remove
ODP data cache
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User access - Portal
Major functions:Entry point for ODP consumers
and specified users (administrators, operators) and mean of integrated access to information resources and management of the ODP.
ODP Portal includes two sub portals: User and Administrator.
Portal contains a number of services and solutions to search and discover data/services, provide data visualization, news and other relevant information to the user community.
JOSSO Identity Provider
Security
Users Administrators
Service Bus
Thematic Portlets
PORTAL
Service portlets
Administration
Database
Metadata Service
Distribution
Harvesting
Conversion CSW
HTTP
HTTP
SOAP
JDBC
JDBC
Metadata access Data
access
Subscription
GIS
Integration Server
Request
Third-party software
ODP components
Retrieval Collection Replication
System management Dissemination
Data Cache
SOAP FTPEmail
Data Provider
Metadata creation
Data connection
DatabaseFiles
HTTP FTPOGC
HTTP/SOAP
SOAP
Cont
rol
Monitoring
StatisticsMessaging
JDBC
SOAP
SeaDataNet
WIS
GEOSS
….
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User access – Portal – user interface examples
Home page
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User access – Portal – user interface examples
Information about present ODP data providers
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User access – Portal – user interface examples
ODP network metadata and data - view/download access
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User access – Portal – user interface examples
Related projects metadata and data access – simple and advanced search and access interfaces
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User access – Portal – user interface examples
Services – feeds, maps and web services
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Control and management - Service Bus
Major functions: Communication layer
between components; XML-driven model; Service registry
management; Operation control and
logging; Dynamic web service
invocation.allows composition of simple and
complex services using OASIS Business Process Execution Language – BPEL2, typically from multiple service providers. The orchestration engine is the service used to execute the resulting composite services
Node
Service Bus
Data types & structures
XML-schema
Interface controller
Internaldatabase
API
SOAP web service
XML,SOAP
Client
XML,SOAP
Data types & structures
XML-schema
Data types & structures
XML-schema
XML-processor
Component N
Web-serviceNSOAP XML
Additional modules
Java-API
BPEL API
Component 1
Web-service1SOAPXML
Additional modules
Java-API
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Control and management - Service Bus – user interface examples
Components activity journals, service bus “health” and stats
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Security servicesMajor functions: Single-sign-on (SSO) user authentication
and authorization among ODP components and services and other trusted nodes, equipped with same ODP system.
The user authentication process allows a user to enter one name and password in order to access other components without being prompted to log in again at each of them.
Security service is responsible for centralization and share of user roles and user records among other ODP components and services and well as among other trusted ODP nodes. User records and roles are communalized with Portal.
3rd Session of the ETDMP, 16-19 October 2012, Oostende, BelgiumMINCyT, Buenos Aires, Argentina, 7 – 11 October 2013
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VM OSRAM(min/
norm.)
HDD(Gb) Middleware Components
VM_ODP_01_PORTAL
CentOS v.6 x_6
4
4/8 32 JDK 1.7, JBoss Portal Security, Portal, Thematic portlets
VM_ODP_02_DB
CentOS v.6 x_6
4
4/8 64 PostgreSQL Database (for Security, Portal, Service Bus, Statistics)
VM_ODP_03_SOI
CentOS v.6 x_6
4
8 32 JDK 1.6, JBoss Service BusStatistics
VM_ODP_04_IS
CentOS v.6 x_6
4
8 32 JDK 1.7, JBoss Integration Server
VM_ODP_05_DP
CentOS v.6 x_6
4
4/8 32 JDK 1.7, JBoss Data Provider, Light Data Provider
Summary 28/40 256
Hardware requirements
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Questions?
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