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| <li class="subfolders"> |
| <a href="#"><span></span>Ditto Protocol</a> |
| <ul> |
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| <li><a href="protocol-overview.html">Overview</a></li> |
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| <li><a href="protocol-twinlive.html">Twin/live channel</a></li> |
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| <li><a href="protocol-specification.html">Specification</a></li> |
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| <li><a href="protocol-specification-topic.html">Protocol topic</a></li> |
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| <li><a href="protocol-specification-things.html">Things group</a></li> |
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| <li class="subfolders"> |
| <a href="#"><span></span>→ commands/events</a> |
| <ul> |
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| <li><a href="protocol-specification-things-create-or-modify.html">Create/Modify</a></li> |
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| <li><a href="protocol-specification-things-retrieve.html">Retrieve</a></li> |
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| <li><a href="protocol-specification-acks.html">Acknowledgements</a></li> |
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| <li><a href="protocol-specification-errors.html">Errors</a></li> |
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| </li> |
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| <li class="subfolders"> |
| <a href="#"><span></span>→ search/messages</a> |
| <ul> |
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| <li><a href="protocol-specification-things-search.html">Search</a></li> |
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| <li><a href="protocol-specification-things-messages.html">Messages</a></li> |
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| </ul> |
| </li> |
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| <li><a href="protocol-specification-policies.html">Policies group</a></li> |
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| <li class="subfolders"> |
| <a href="#"><span></span>→ commands/events</a> |
| <ul> |
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| <li><a href="protocol-specification-policies-create-or-modify.html">Create/Modify</a></li> |
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| <li><a href="protocol-specification-policies-retrieve.html">Retrieve</a></li> |
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| <li><a href="protocol-specification-policies-delete.html">Delete</a></li> |
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| </ul> |
| </li> |
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| <li><a href="protocol-bindings.html">Bindings</a></li> |
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| <li><a href="protocol-examples.html">Examples</a></li> |
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| <li class="subfolders"> |
| <a href="#"><span></span>→ Things examples</a> |
| <ul> |
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| <li><a href="protocol-examples-creatething.html">Create a Thing</a></li> |
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| <li><a href="protocol-examples-deletething.html">Delete a Thing</a></li> |
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| <li><a href="protocol-examples-retrievething.html">Retrieve a Thing</a></li> |
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| <li><a href="protocol-examples-retrievethings.html">Retrieve multiple Things</a></li> |
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| <li><a href="protocol-examples-modifypolicyid.html">Modify the Policy ID of a Thing</a></li> |
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| <li><a href="protocol-examples-createattributes.html">Create Attributes</a></li> |
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| <li><a href="protocol-examples-modifyattributes.html">Modify Attributes</a></li> |
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| <li><a href="protocol-examples-retrieveattributes.html">Retrieve Attributes</a></li> |
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| <li><a href="protocol-examples-createattribute.html">Create a single Attribute</a></li> |
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| <li><a href="protocol-examples-deleteattribute.html">Delete a single Attribute</a></li> |
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| <li><a href="protocol-examples-modifyattribute.html">Modify a single Attribute</a></li> |
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| <li><a href="protocol-examples-retrieveattribute.html">Retrieve a single Attribute</a></li> |
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| <li><a href="protocol-examples-createthingdefinition.html">Create a Definition</a></li> |
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| <li><a href="protocol-examples-deletethingdefinition.html">Delete a Definition</a></li> |
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| <li><a href="protocol-examples-modifythingdefinition.html">Modify a Definition</a></li> |
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| <li><a href="protocol-examples-retrievethingdefinition.html">Retrieve a Definition</a></li> |
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| <li><a href="protocol-examples-createfeatures.html">Create Features</a></li> |
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| <li><a href="protocol-examples-deletefeatures.html">Delete Features</a></li> |
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| <li><a href="protocol-examples-modifyfeatures.html">Modify Features</a></li> |
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| <li><a href="protocol-examples-retrievefeatures.html">Retrieve Features</a></li> |
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| <li><a href="protocol-examples-createfeature.html">Create a single Feature</a></li> |
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| <li><a href="protocol-examples-deletefeature.html">Delete a single Feature</a></li> |
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| <li><a href="protocol-examples-modifyfeature.html">Modify a single Feature</a></li> |
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| <li><a href="protocol-examples-retrievefeature.html">Retrieve a single Feature</a></li> |
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| <li><a href="protocol-examples-createdefinition.html">Create Feature Definition</a></li> |
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| <li><a href="protocol-examples-modifydefinition.html">Modify Feature Definition</a></li> |
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| <li><a href="protocol-examples-retrievedefinition.html">Retrieve Feature Definition</a></li> |
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| <li><a href="protocol-examples-createproperties.html">Create Feature Properties</a></li> |
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| <li><a href="protocol-examples-retrieveproperties.html">Retrieve Feature Properties</a></li> |
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| <li><a href="protocol-examples-createproperty.html">Create a single Property</a></li> |
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| <li><a href="protocol-examples-deleteproperty.html">Delete a single Property</a></li> |
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| <li><a href="protocol-examples-modifyproperty.html">Modify a single Property</a></li> |
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| <li><a href="protocol-examples-retrieveproperty.html">Retrieve a single Property</a></li> |
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| <li><a href="protocol-examples-createdesiredproperties.html">Create desired Feature Properties</a></li> |
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| <li><a href="protocol-examples-deletedesiredproperties.html">Delete desired Feature Properties</a></li> |
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| <li><a href="protocol-examples-modifydesiredproperties.html">Modify desired Feature Properties</a></li> |
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| <li><a href="protocol-examples-retrievedesiredproperties.html">Retrieve desired Feature Properties</a></li> |
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| <li><a href="protocol-examples-createdesiredproperty.html">Create a single desired Property</a></li> |
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| <li><a href="protocol-examples-deletedesiredproperty.html">Delete a single desired Property</a></li> |
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| <li><a href="protocol-examples-modifydesiredproperty.html">Modify a single desired Property</a></li> |
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| <li><a href="protocol-examples-retrievedesiredproperty.html">Retrieve a single desired Property</a></li> |
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| <li><a href="protocol-examples-errorresponses.html">Error responses</a></li> |
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| </ul> |
| </li> |
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| <li class="subfolders"> |
| <a href="#"><span></span>→ Policies examples</a> |
| <ul> |
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| <li><a href="protocol-examples-policies-createpolicy.html">Create a Policy</a></li> |
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| <li><a href="protocol-examples-policies-deletepolicy.html">Delete a Policy</a></li> |
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| <li><a href="protocol-examples-policies-modifypolicy.html">Modify a Policy</a></li> |
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| <li><a href="protocol-examples-policies-retrievepolicy.html">Retrieve a Policy</a></li> |
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| <li><a href="protocol-examples-policies-modifypolicyentries.html">Modify entries</a></li> |
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| <li><a href="protocol-examples-policies-retrievepolicyentries.html">Retrieve entries</a></li> |
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| <li><a href="protocol-examples-policies-createpolicyentry.html">Create a single entry</a></li> |
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| <li><a href="protocol-examples-policies-deletepolicyentry.html">Delete a single entry</a></li> |
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| <li><a href="protocol-examples-policies-modifypolicyentry.html">Modify a single entry</a></li> |
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| <li><a href="protocol-examples-policies-retrievepolicyentry.html">Retrieve a single entry</a></li> |
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| <li><a href="protocol-examples-policies-modifysubjects.html">Modify subjects</a></li> |
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| <li><a href="protocol-examples-policies-retrievesubjects.html">Retrieve subjects</a></li> |
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| <li><a href="protocol-examples-policies-createsubject.html">Create a single subject</a></li> |
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| <li><a href="protocol-examples-policies-deletesubject.html">Delete a single subject</a></li> |
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| <li><a href="protocol-examples-policies-modifysubject.html">Modify a single subject</a></li> |
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| <li><a href="protocol-examples-policies-retrievesubject.html">Retrieve a single subject</a></li> |
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| <li><a href="protocol-examples-policies-modifyresources.html">Modify resources</a></li> |
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| <li><a href="protocol-examples-policies-retrieveresources.html">Retrieve resources</a></li> |
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| <li><a href="protocol-examples-policies-createresource.html">Create a single resource</a></li> |
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| <li><a href="protocol-examples-policies-deleteresource.html">Delete a single resource</a></li> |
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| <li><a href="protocol-examples-policies-modifyresource.html">Modify a single resource</a></li> |
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| <li><a href="protocol-examples-policies-retrieveresource.html">Retrieve a single resource</a></li> |
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| <li><a href="protocol-examples-policies-errorresponses.html">Error responses</a></li> |
| |
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| </ul> |
| </li> |
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| <li><a href="protocol-examples-search.html">→ Search examples</a></li> |
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| <div class="post-header"> |
| <h1 class="post-title-main">Release notes 1.5.0</h1> |
| </div> |
| |
| |
| |
| <div class="post-content"> |
| |
| |
| <div class="summary">Version 1.5.0 of Eclipse Ditto, released on 10.12.2020</div> |
| |
| |
| |
| |
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| <div id="toc"></div> |
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| |
| <p>Ditto <strong>1.5.0</strong> is API and <a href="https://github.com/eclipse/ditto/blob/master/documentation/src/main/resources/architecture/DADR-0005-semantic-versioning.md">binary compatible</a> |
| to prior Eclipse Ditto 1.x versions.</p> |
| |
| <h2 id="changelog">Changelog</h2> |
| |
| <p>Compared to the latest release <a href="release_notes_140.html">1.4.0</a>, the following changes, new features and |
| bugfixes were added.</p> |
| |
| <div class="alert alert-danger" role="alert"><i class="fa fa-exclamation-circle"></i> <b>Warning:</b> If you want to upgrade an existing Ditto installation to 1.5.0, the migration has to be |
| done before upgrading: <strong>Follow the steps documented in <a href="#migration-notes">the migration notes</a></strong>.</div> |
| |
| <h3 id="changes">Changes</h3> |
| |
| <h4 id="negatively-settling-processed-amqp-10-messages-changed-to-rejected"><a href="https://github.com/eclipse/ditto/pull/907">Negatively settling processed AMQP 1.0 messages changed to <code class="highlighter-rouge">rejected</code></a></h4> |
| |
| <p>In previous versions, Ditto negatively settled messages consumed via AMQP 1.0 which could not be applied to Ditto |
| (e.g. because the received message could not be understood or permissions were missing) with <code class="highlighter-rouge">modified[undeliverable-here]</code>.</p> |
| |
| <p>This was changed to settle with <code class="highlighter-rouge">rejected</code> |
| (see <a href="http://docs.oasis-open.org/amqp/core/v1.0/os/amqp-core-messaging-v1.0-os.html#type-rejected">AMQP 1.0 spec</a>) |
| instead, as this is the more correct settlement outcome.</p> |
| |
| <h4 id="mongodb-for-unit-tests-was-increased-to-version-42"><a href="https://github.com/eclipse/ditto/pull/896">MongoDB for unit tests was increased to version 4.2</a></h4> |
| |
| <p>Prior to Ditto 1.5.0, the unit tests still were done against MongoDB version 3.6 which reaches end-of-life in April 2021.</p> |
| |
| <h4 id="config-files-consolidation"><a href="https://github.com/eclipse/ditto/pull/888">Config files consolidation</a></h4> |
| |
| <p>No special <code class="highlighter-rouge">-cloud.conf</code> and <code class="highlighter-rouge">-docker.conf</code> config files are needed any longer, there are only special config files |
| ending with <code class="highlighter-rouge">-dev.conf</code> which contain configuration in order to start Eclipse Ditto e.g. locally in an IDE.</p> |
| |
| <h3 id="new-features">New features</h3> |
| |
| <h4 id="header-mapping-for-feature-id-in-connectivity"><a href="https://github.com/eclipse/ditto/issues/857">Header mapping for Feature ID in connectivity</a></h4> |
| |
| <p>Feature IDs may now be used as placeholders in <a href="basic-placeholders.html#scope-connections">Connectivity header mappings</a>.</p> |
| |
| <h4 id="addition-of-desired-feature-properties-in-model-and-apis"><a href="https://github.com/eclipse/ditto/issues/697">Addition of “desired” feature properties in model and APIs</a></h4> |
| |
| <p>A feature which was long on the roadmap of Eclipse Ditto is the ability to distinguish between reported and <a href="basic-feature.html#feature-desired-properties">desired |
| twin state</a>.</p> |
| |
| <p>“reported” twin state can be seen as data/state coming from the actual device (the current “truth”) whereas the |
| “desired” state is something an application in the backend or a mobile app would set as the new requested target state |
| for a property.</p> |
| |
| <p>This issue layed the foundation by creating the model and the APIs in order to manage those <code class="highlighter-rouge">desiredProperties</code>.</p> |
| |
| <h4 id="issuing-weak-acknowledgements-when-a-command-requesting-acks-was-filtered-out"><a href="https://github.com/eclipse/ditto/issues/852">Issuing “weak acknowledgements” when a command requesting acks was filtered out</a></h4> |
| |
| <p>When using <a href="basic-acknowledgements.html">acknowledgements</a> in order to guarantee “at least once” (QoS 1) delivery and |
| scenarios like:</p> |
| <ul> |
| <li>a subscriber that declared an ack label requested by the publisher is not authorized to receive a published signal</li> |
| <li>or: a subscriber that declared an ack label requested by the publisher discards the published signal due to namespace or RQL filtering</li> |
| </ul> |
| |
| <p>resending the signal will not help. |
| Ditto now emits a “weak acknowledgement” for such cases that does not trigger redelivery.</p> |
| |
| <h4 id="ditto-internal-pubsub-supports-using-a-grouping-concept"><a href="https://github.com/eclipse/ditto/issues/878">Ditto internal pub/sub supports using a “grouping” concept</a></h4> |
| |
| <p>A “group” concept was added to Ditto pub/sub:</p> |
| <ul> |
| <li>Subscribers may subscribe with a group name.</li> |
| <li>Published signals are delivered to exactly 1 subscriber within each group chosen consistently according to the entity ID.</li> |
| </ul> |
| |
| <p>With this feature, the event publishing at connections will scale with the number of client actors by having the client |
| actors subscribe for events directly using the connection ID as group.</p> |
| |
| <h4 id="addition-of-cloudevents-http-endpoint"><a href="https://github.com/eclipse/ditto/issues/889">Addition of “cloudevents” HTTP endpoint</a></h4> |
| |
| <p>While <a href="https://cloudevents.io">cloud events</a> provide bindings for Kafka, MQTT, … they also have an HTTP endpoint |
| binding, which can easily be used in the combination with Knative.</p> |
| |
| <p>With addition of a new HTTP endpoint <code class="highlighter-rouge">/cloudevents</code>, it is now possible to easily map incoming messages from any |
| Knative eventing source to Eclipse Ditto, acting as a Knative eventing sink.</p> |
| |
| <p>A special thanks to <a href="https://github.com/ctron">Jens Reimann (ctron)</a> from <a href="https://github.com/RedHatOfficial">RedHat</a> |
| for this addition to Eclipse Ditto.</p> |
| |
| <h3 id="bugfixes">Bugfixes</h3> |
| |
| <p>Several bugs in Ditto 1.4.0 were fixed for 1.5.0.<br /> |
| This is a complete list of the |
| <a href="https://github.com/eclipse/ditto/pulls?q=is%3Apr+milestone%3A1.5.0">merged pull requests</a>, including the fixed bugs.<br /> |
| Here as well for the Ditto Java Client: <a href="https://github.com/eclipse/ditto-clients/pulls?q=is%3Apr+milestone%3A1.5.0">merged pull requests</a></p> |
| |
| <h4 id="fix-that-sending-messages-with-non-existing-value-was-not-possible-via-http-endpoints"><a href="https://github.com/eclipse/ditto/pull/875">Fix that sending messages with non-existing “value” was not possible via HTTP endpoints</a></h4> |
| |
| <p>The HTTP <code class="highlighter-rouge">/messages</code> endpoints did not allow that a Ditto Protocol messages with non-existing <code class="highlighter-rouge">"value"</code> were created for |
| HTTP invocations which did not include payload at all.</p> |
| |
| <p>That was fixed in the way that for requests with <code class="highlighter-rouge">Content-Length: 0</code> the <code class="highlighter-rouge">"value"</code> is now removed from the resulting |
| Ditto Protocol message instead of being <code class="highlighter-rouge">"value": ""</code> (empty JSON string).</p> |
| |
| <h4 id="ditto-java-client-when-starting-consumption-with-invalid-filter-wrongly-timeout-exception-is-propagate-to-the-user"><a href="https://github.com/eclipse/ditto-clients/pull/105">Ditto Java client: When starting consumption with invalid filter, wrongly timeout exception is propagate to the user</a></h4> |
| |
| <p><code class="highlighter-rouge">dittoClient.twin().startConsumption(org.eclipse.ditto.client.options.Options.Consumption.filter("invalidFilter"))</code> |
| throwed a wrong exception and did not propagate the real error to the user.</p> |
| |
| <p>Affected <a href="https://github.com/eclipse/ditto/pull/902">Ditto PR</a>.</p> |
| |
| <h4 id="ditto-java-client-fix-featurechange-consumption-for-specific-feature-change-registration"><a href="https://github.com/eclipse/ditto-clients/pull/101">Ditto Java client: Fix FeatureChange consumption for specific feature change-registration</a></h4> |
| |
| <p>This fixes a bug that caused ignoring features in a FeatureChange for change-registrations on single features, |
| when only a single subpath exists in the feature (i.e. feature with only properties).</p> |
| |
| <h2 id="migration-notes">Migration notes</h2> |
| |
| <h3 id="mongodb-hostname-configuration">MongoDB hostname configuration</h3> |
| |
| <p>Due to the <a href="https://github.com/eclipse/ditto/pull/888">consolidation of config files</a>, it is now <strong>required to configure |
| the MongoDB <code class="highlighter-rouge">hostname</code> explicitly</strong> as the default hostname was changed to <code class="highlighter-rouge">localhost</code>.<br /> |
| Previously, this hostname was automatically set to <code class="highlighter-rouge">mongodb</code> (which is the hostname of the MongoDB when e.g. the |
| <code class="highlighter-rouge">docker-compose.yaml</code> deployment is used) in Docker based environments.</p> |
| |
| <p>This now has to be manually done via the environment variable <code class="highlighter-rouge">MONGO_DB_HOSTNAME</code>.</p> |
| |
| <p>The default <code class="highlighter-rouge">docker-compose.yaml</code> was also adjusted accordingly: |
| <a href="https://github.com/eclipse/ditto/blob/master/deployment/docker/docker-compose.yml">docker-compose.yml</a></p> |
| |
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