ServiceTemplate usage

The ServiceTemplates class allows to get the definition of the services defined in the autodescripted module manifest, and check the compatibility of a Service with the stored definition.

Check the compatibility of a Service

The following methods allow to check the compatibility of a Service with the stored definition:

• ServiceTemplates.checkService(ServiceDefinition) to check a service definition with the stored definition
• ServiceTemplates.checkService(ServiceInstance) to check a service instance with the stored definition

Example

In this example, we want to check if one service is present and compatible with a module declaration.

      // create a ServiceTemplates with the XML files defining the expected servixes and types
      ServiceTemplates template = new ServiceTemplates(module, <services definition>, <types definition>);

      // get the service to check
      ServiceInstance<?, ?> service = ...

      // // check a service, not taking into account its direction, the module can provide the service or subscribe to it
      short state = template.checkService(service);

      // check a service, the service will be considered unconsistent if it is not provided by the module
      state = template.checkService(service, ServiceTemplates.PROVIDER);

      // check a service, the service will be considered unconsistent if the module does not subscribe to it
      state = template.checkService(service, ServiceTemplates.SUBSCRIBER);

Return the provider or subscriber interfaces

The following methods allow to return the provider or subscriber interfaces declared in the stored definition:

• ServiceTemplates.getProviderInterfaces()return the provider interfaces defined in the stored definition
• ServiceTemplates.getSubscriberInterfaces()return the provider interfaces defined in the stored definition