Present Status of Metbroker

Presentation on theme: "Present Status of Metbroker"— Presentation transcript:

1 Present Status of Metbroker
APAN Honolulu 2004 Seishi Ninomiya National Agricultural Research Organization 5時24分

2 Solution by Data Broker
Database heterogeneity is a big issue in distributed environments Data brokers provide consistent access to heterogeneous DBs APAN Honolulu 2004 Heterogeneous DBs Meta Data A-DB Rice Growth Prediction Farm Management MetBroker Pesticide Prediction Heterogeneity is absorbed by brokers (mediators) B-DB C-DB D-DB 5時24分

3 Data Brokers Developed
Meteorological DBs MetBroker（14DB, >6000 stations） Map DBs ChizuBroker（3DB，Japan，NZ，World） Digital Elevation DBS DEMBroker（2DB，Japan 50m, World 1Km） Soil DBs SoilBroker APAN Honolulu 2004 5時24分

4 New Architecture of Brokers
Clients ChizuBroker MetBroker DEMBroker RMI or HTTP with wrapper servelet APAN Honolulu 2004 Resource Server Country Server WebService-SOAP/XML Tight linkage based on Java objects XML-based Loose linkage 5時24分

5 Field Server linked to MetBroker
Client APP APAN Honolulu 2004 アプリケーション アプリケーション アプリケーション アプリケーション Weather DB 気象 気象 W 気象 DB DB DB DB Client APP アプリケーション アプリケーション アプリケーション アプリケーション 気象 気象 気象 気象 Weather DB DB DB DB DB MetBroker MetBroker MetBroker MetBroker MetBroker アプリケーション アプリケーション アプリケーション アプリケーション Client APP 気象 気象 気象 気象 Weather DB DB DB DB DB FS Weather DB 気象 気象 気象 気象 DB DB DB DB Weather Data XML FieldServerDB FieldServerDB FieldServerDB FS Data Archive Station Conf. XML 5時24分

6 Interpolation Service
APAN Honolulu 2004 WebService Client SOAP over HTTP DEMBroker DEM Broker RMI DB DB Interpolation SOAP Interpolation MetBroker DB DB SOAP MetBroker DB DB 5時24分

7 Thank you for your attention www.agmodel.org www.agmodel.net
APAN Honolulu 2004 Thank you for your attention 5時24分