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Scenario

From ML thread http://www.mail-archive.com/tuscany-dev@ws.apache.org/msg27362.html

There are three contributions in the tutorial:

  • assets.jar containing most implementation artifacts
  • store.jar containing the main store components
  • cloud.jar containing utility components in the service "cloud"

Both store.jar and cloud.jar import artifacts from assets.jar.

1. Create assets.jar and store.jar (using scheme B).

2. Open my tutorial domain in my Web browser, upload store.jar to the
domain.

3. List the contributions in the domain, store.jar shows a red-x error
as some of its imports are not resolvable.

4. Upload assets.jar. Both assets.jar and store.jar show in the list
with no red-x.

5. List the deployable composites, find http://store#store under
store.jar. Open it in my browser to check it's what I want.

6. Mark http://store#store as deployed. Store has a reference to a
CurrencyConverter service (from composite http://cloud#cloud which is
not in my domain yet) so it shows a red-x and appears disabled.

7. Upload cloud.jar, find deployable composite http://cloud#cloud in it,
mark it deployed. The red-x on deployed composite http://store#store is
now gone.

8. Assuming I have 2 machines for running SCA in my network and have
already declared these 2 machines to my domain, allocate composites to
them. Select http://store#store and associate it with machine1.
Store.jar and assets.jar are downloaded to machine1 and machine1
configured with http://store#store.

9. Select http://cloud#cloud and associate it with machine2. Cloud.jar
and assets.jar are downloaded to machine2 and machine2 is configured
with http://cloud#cloud.

10. Display the list of deployed composites, select http://store#store,
click the start button, select http://cloud#cloud, click start.

Tuscany Functions

Form ML thread http://www.mail-archive.com/tuscany-dev@ws.apache.org/msg27609.html

A) Contribution workspace (containing installed contributions):

  • Contribution model representing a contribution
  • Reader for the contribution model
  • Workspace model representing a collection of contributions
  • Reader/writer for the workspace model
  • HTTP based service for accessing the workspace
  • Web browser client for the workspace service
  • Command line client for the workspace service
  • Validator for contributions in a workspace

B) Domain composite (containing deployed composites):

  • We can just reuse the existing composite model
  • HTTP based service for accessing the domain composite
  • Web browser client for the domain composite service
  • Command line client for the domain composite service
  • Validator for composites deployed in the domain composite
  • Function for processing wiring in the domain

C) Node configuration

  • Implementation.node model
  • Reader/writer for the implementation.node model
  • Function for configuring composites assigned to nodes
  • Function for pushing contributions and composites to nodes

D) Node runtime

  • Runtime that loads a set of contributions and a composite
  • HTTP based service for starting/stopping a node
  • A node runtime needs to provide a way to monitor its status.

Contribution Features/Phases?

From ML thread http://www.mail-archive.com/tuscany-dev%40ws.apache.org/msg28311.html

  • add/list/remove contributions/composites/nodes
  • analyze/resolve/validate contributions and their dependencies
  • associate composites with nodes/apply physical binding defaults/propogate physical addresses based on domain level wiring
  • read/compile-build/write composites without requiring a runtime
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