Tutorial: Designing Eclipse APIs Boris Bokowski, John Arthorne, Jim ...

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ECF Discovery API – 1k feet above • A protocol and „space“ agnostic API for service discovery – Not bound to OSGi – Does not expose provider/protocol internals • Namespace/ID allows flexibility in service addressing • providerAService.equals(provdierBService); – Not limited to, e.g., the local subnet (LAN) • However some providers are restricted – No garantuees (just because something is discoverable, does not mean it is there) • Upper layers may fail to connect • Provides IDiscoveryLocator and IDiscoveryAdvertiser – Locator finds services – Advertiser registers/announces services • Consumer gets hold of discovery services • Transparent when used with RFC 119 (ServicePublication) © 2009 by Markus Alexander Kuppe, Scott Lewis; made available under the EPL v1.0 | March 23, 2009
Main Interfaces of ECF Discovery // Discovery and register services with… org.eclipse.ecf.discovery.IDiscoveryLocator org.eclipse.ecf.discovery.IDiscoveryAdvertiser // Uniqueness/Identity for service is handled by IDs org.eclipse.ecf.discovery.identity.IServiceID org.eclipse.ecf.discovery.identity.IServiceTypeID // Factory to create new IServiceTypeIDs org.eclipse.ecf.discovery.identity.IServiceIDFactory // The actual service instace (used in query by example too) org.eclipse.ecf.discovery.IServiceInfo Org.eclipse.ecf.discovery.IServiceProperties © 2009 by Markus Alexander Kuppe, Scott Lewis; made available under the EPL v1.0 | March 23, 2009
Page 1 and 2: Tutorial: Distributed OSGi - The EC
Page 3 and 4: Tutorial schedule - Agenda 13:30 -
Page 5 and 6: What you should learn/Goals for tod
Page 7 and 8: What you need � Your laptop � A
Page 9 and 10: © 2009 by Markus Alexander Kuppe,
Page 11 and 12: © 2009 by Markus Alexander Kuppe,
Page 13 and 14: Who is using ECF today? � Versant
Page 15 and 16: OSGi Services � OSGi services pro
Page 17 and 18: But there are multiple methods...ev
Page 19 and 20: ECF Architecture © 2009 by Markus
Page 21 and 22: ECF Remote Services � API Resembl
Page 23 and 24: R-OSGi Provider R-OSGi was one of t
Page 25 and 26: Code: Service Host // Create contai
Page 27 and 28: Lab 1: Implement Service Consumer
Page 29 and 30: RFC 119 � Discovery and Distribut
Page 31 and 32: Lab 2a: Service Consumer with RFC 1
Page 33 and 34: Do we want Transparent Usage? (as o
Page 35 and 36: ECF Discovery © 2009 by Markus Ale
Page 37 and 38: ECF Discovery & Remoteservice UI ©
Page 39: ECF Discovery & Remoteservices UI
Page 43 and 44: IDiscoveryLocator|Advertiser Provid
Page 45 and 46: IServiceTypeID & IServiceID & IServ
Page 47 and 48: Lab3 - Your own org.osgi.service.di
Page 49 and 50: Lab3 - Your own org.osgi.service.di
Page 51 and 52: File based discovery • Use Case:
Page 53 and 54: File based discovery à la RFC119
Page 55 and 56: Multicast based providers • Use c
Page 57 and 58: Service Locator Protocol (SLPv2) RF
Page 59 and 60: IP multicast DNS (mDNS) Dynamic Con
Page 61 and 62: Other service discovery protocols
Page 63 and 64: But that essentially creates two se
Page 65 and 66: DNS-SD with Bind @ IN SOA ns.smartc
Page 67 and 68: Demo Client running RCP App with EC
Page 69 and 70: ECF Distributed Testing © 2009 by
Page 71 and 72: Lessons learned © 2009 by Markus A
Page 73 and 74: More about distributed OSGi at Ecli
Page 75 and 76: Eclipse ECF Project http://www.ecli

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