Global overview

Configurtion File contains RoSe machine description language

Name of file supposed to start with “rose-conf” and saved as a json file, name example:

json-conf-x.json

where x can be either digits or chars

And need to be placed in deploy folder or other if different has been set in felix.fileinstall.dir platform property.

Root of configuration file is “machine” and it contains 4 sections:

• id – identification name
• host – network node address
• connection – specify importing and/or exporting particular services; has 2 sections:
• in – for importing purpose
• out – for exporting purpose
• component – section to easily instantiate components with given properties

“IN” in connection

This section specifies which services are demanded to be imported.

To import endpoints just set a filter in “endpoint_filter” property, example:

"endpoint_filter" : "(endpoint.id=*)"

This filter will import every discovered endpoints.

“OUT” in connection

This section specifies which services are demanded to be exported.

To export services set a filter in “service_filter” property a filter, example:

"service_filter" : "(objectClass= objectClass=org.osgi.service.log.LogService)"

Using this filter service providing LogService will be exported

Some additional properties can be added by setting “properties” property:

"properties" : { "tag" : ["log","service","id"]

“COMPONENT” section

This section was created in order to simplify a components instantiations. Required is “factory” section which specifies a factory method, additional properties can be set in “properties” property , example:

{"factory" : "factory_name", "properties" : { "property1" : "value1", "property2":"value2" } }

Example file

Full example of configuration file is available here