1. Tuscany Java SCA Architecture

2. The Tuscany Java SCA Runtime

3. Inside The Tuscany SCA Java Runtime

4. Tuscany Extensions Support SCA Assembly Extensions

5. Logical Tuscany Core Modules
Runtime Model
Invocation
Activation
Assembly Model
Policy Model
Builders
Contribution
Extensibility

6. Tuscany Node Start Up 8. Start the runtime artefacts
7. Activate the assembly model to create runtime artefacts
6. Build the assembly model to determine all component types, connect references to services and connect promoted references and services.
Assembly Model
Contribution
Builders
Activation
Extensibility
Policy Model
Invocation
Runtime Model
4. Consolidate definitions.xml from contribution into policy model
5. Parse .composite file into assembly model
2. Consolidate definitions.xml from extensions into policy model
3. Load contribution and identify all contribution artefacts
1. Locate extensions via META-INF/services

7. Invocation - Runtime Wire Overview
Databinding
Interceptor
Binding
Invoker
Databinding
Interceptor
Implementation
Invoker
Source
Component
Operation 1
Binding
Protocol
Stack
Binding
Protocol
Listener
Operation 1
Target
Component
Operation 2
Operation 2
Operation 3
Operation 3
Component reference
invocation chain
Component Service
invocation chain

8. Populating Wires Using Extension Providers
Composite File
<component name="HelloWorldClientComponent">
<implementation.java class="helloworld.HWClientImpl"/>
<reference name="helloWorldService">
<binding.ws url="
</reference>
</component>
<component name="HelloWorldServiceComponent">
<implementation.java class="helloworld.HWServiceImpl" />
<service name="HelloWorldService">
<binding.ws uri="
</service>
</component>
Assembly Model
HelloWorld
ClientComponent
Component
binding.ws
binding.ws
Reference
Service
Invoker
Listener
Runtime
Axis2BindingProviderFactory
createReferenceBindingProvider
createServiceBindingProvider
ReferenceBindingProvider
start()
stop()
createInvoker
ServiceBindingProvider
start()
stop()

9. Runtime Wire - End To End Web Service Binding Example
Component
Component
Reference
Service
Reference
Policy
Binding
Policy
Binding
Policy
Service
Policy
Implementation
Policy
Implementation
Databinding
binding.ws
Axis2
binding.ws
Databinding
Implementation
core
Runtime Wire
core
Runtime Wire
Impl
args
Implementation
Implementation
arguments
Proxy
JDKInvoationHandler
???
Data Transformation
Intercepetor
Tuscany
Message
???
Binding Invoker
Axis2
Axis2
Native
messages
Message Receiver
Binding Provider/Listener
Runtime Wire Invoker
???
Data Transformation
Intercepetor
Tuscany
Message
???
Implementation Invoker
Implementation

10. Component Interfaces <component> <component>
Reference
Service
<component>
<reference>
<interface>
<binding>
<component>
<implementation
<service>
<interface>
<binding>
Source
Interface Contract
Binding Interface Contract
Binding Interface Contract
Target
Interface Contract
Component Type
Reference Interface
Binding Interface
Binding Native
Interface
Axis2
Axis2
Binding Native
Interface
Binding Interface
Service Interface
Component Type
Interface
Databinding
Databinding