Remoting patterns

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Pattern: Server Request Handler • Context: 28 • You are providing remote objects in a server application, and invokers are used for message dispatching • Problem: • The request message has to be received from the network • Managing communication channels efficiently and effectively is essential • Network communication needs to be coordinated and optimized • Solution: • Server request handler deals with all communication issues of a server application: • Receives messages from the network • Combines the message fragments to complete messages • Dispatches the messages to the correct invoker • Manages all the required resources (connections, threads, …) Uwe Zdun, Markus Voelter, Michael Kircher - <strong>Remoting</strong> Patterns.
Pattern: Server Request Handler (2) Client Process Server Process Client Requestor Proxy Client Request Handler Machine Boundary Server Request Handler OS APIs Invoker Invoker Invoker thread pool connection pool 29 Uwe Zdun, Markus Voelter, Michael Kircher - <strong>Remoting</strong> Patterns.
Page 1 and 2: Remoting Patterns Uwe Zdun, Markus
Page 3 and 4: Patterns and Pattern Languages 3 Uw
Page 5 and 6: Elements of a Pattern • Name •
Page 7 and 8: From Patterns to Pattern Languages
Page 9 and 10: Distributed Systems: Application Ar
Page 11 and 12: Distributed Systems: Challenges •
Page 13 and 14: Remoting Styles • There are syste
Page 15 and 16: Remoting Patterns • Numerous proj
Page 17 and 18: Pattern: Broker (2) Process A Proce
Page 19 and 20: Server Application • Remote objec
Page 21 and 22: Basic Remoting Patterns INTERFACE D
Page 23 and 24: Pattern: Requestor (2) Process A Pr
Page 25 and 26: Pattern: Client Proxy (2) Process A
Page 27: Pattern: Invoker (2) Process A2 Cli
Page 31 and 32: Pattern: Client Request Handler (2)
Page 33 and 34: Pattern: Marshaller (2) Client Proc
Page 35 and 36: Pattern: Interface Description (2)
Page 37 and 38: Pattern: Remoting Error (2) Process
Page 39 and 40: Interactions: Client-Side Invocatio
Page 41 and 42: Interactions: Remoting Error Propag
Page 43 and 44: Identification Patterns Client look
Page 45 and 46: Pattern: Object ID (2) Process A1 C
Page 47 and 48: Pattern: Absolute Object Reference
Page 49 and 50: Pattern: Lookup (2) Process C Proce
Page 51 and 52: Interactions: Marshalling of Absolu
Page 53 and 54: Lifecycle Management Patterns SERVE
Page 55 and 56: Pattern: Static Instance (2) Proces
Page 57 and 58: Pattern: Per-Request Instance (2) P
Page 59 and 60: Pattern: Client-Dependent Instance
Page 61 and 62: Pattern: Lazy Acquisition (2) Proce
Page 63 and 64: Pattern: Pooling (2) Process A Clie
Page 65 and 66: Pattern: Leasing (2) Process A Clie
Page 67 and 68: Pattern: Passivation (2) Process A
Page 69 and 70: Interactions: Per-Request Instance
Page 71 and 72: Interactions: Leased Creation Clien
Page 73 and 74: Interactions: Passivation Invoker i
Page 75 and 76: Extension Patterns Client CLIENT PR
Page 77 and 78: Pattern: Invocation Interceptor (2)
Page 79 and 80:
Pattern: Invocation Context (2) Pro
Page 81 and 82:
Pattern: Protocol Plug-In (2) Proce
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Interactions: Server-Side Security
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optimizes resource consumption upda
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Pattern: Lifecycle Manager (2) 2a)
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Pattern: Configuration Group (2) Se
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Pattern: Local Object (2) Server Pr
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Pattern: QoS Observer (2) 1) Serve
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Pattern: Location Forwarder (2) Pro
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Invocation Asynchrony Patterns 97 U
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Pattern: Fire and Forget • Contex
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Pattern: Sync with Server • Conte
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Pattern: Poll Object • Context: 1
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Pattern: Result Callback • Contex
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Pattern: Message Queue • Context:
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Relations among the Patterns Acknow
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Interactions: Sync with Server Clie
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Interactions: Result Callback Clien
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Technology Projections 115 Uwe Zdun
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CORBA Technology Projection Name Se
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Web Services • Definition: • A
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Dynamic Invocation on Server Side O
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Constructing an Invocation with a R
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Marshalling • Conversion to SOAP
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Message Processing (2) Client Clien
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Example: Log Handler public class L
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Protocol Integration • Heterogene
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Client-Side Asynchrony • Axis doe
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SAIWS - Invocation Handlers AsyncRe
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SAIWS - Example: Result Callback In
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Other Web Service Frameworks Discus
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Remoting patterns

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