This is Ditto’s first major release which is tied to project graduation in Eclipse IoT.
This release is completely IP (intellectual property) checked by the Eclipse Foundation meaning that project code as well as all used dependencies were “[…] reviewed to ensure that the copyrights expressed are correct, licensing is valid and compatible, and that other issues have been uncovered and properly investigated.”
Changelog
Eclipse Ditto 1.0.0 focuses on the following areas:
- Addition of “definition” field in thing at model level containing the model ID a thing may follow
- Improved connection response handling/mapping
Compared to the latest milestone release 1.0.0-M2, the following changes, new features and bugfixes were added.
Changes
Remove suffixed collections
We removed suffixed collection support from Things and Policies persistence. These collections do not scale well with increased amount of namespaces and lead to massive problems with mongodb as sharding can’t be used.
New features
Comprehensive support for command responses
Adds the possibility to define a “reply target” for connection sources where
- the response address may be configured
- response header mappings may be configured
Both accepting placeholders, so e.g. with that feature it is possible to send replies whenever an incoming command
specified a reply-to address.
Used in combination with Eclipse Hono it is possible to send responses to devices which e.g. need to retrieve data from Ditto.
Add “definition” to Thing in order to reference used model
In order to specify which model a Thing follows, the JSON of the Thing entity was enhanced with a single string for
"definintion". This can e.g. be used in order to place an Eclipse Vorto
“Information Model” reference to a Thing.
Bugfixes
Fixed NullPointer in StreamingSessionActor
When closing a WebSocket session, a NullPointerException occurred which is fixed now.
Migration notes
OpenID Connect URLs are now prefixed with https:// per default. Any configured URLs containing https:// will break the configuration.
Instead of https://auth.eclipse.de/auth/realms/ditto it has to be auth.eclipse.de/auth/realms/ditto instead.
The Configuration option is ditto.gateway.authentication.oauth.openid-connect-issuers.myprovider.
Because we removed support for suffixed collections with this release, an offline migration with the provided script is needed.
The script will copy all Thing and Policy events and snapshots from suffixed collections to one journal for each entity, e.g. from things_journal@org.eclipse.ditto and things_journal@org.eclipse.hono to things_journal.
- Completely stop Ditto.
- Execute the migration script via mongo shell.
- Update Ditto to 1.0.0.
- Start Ditto.