The Apache project released Apache ActiveMQ 5.15.4.
A list of issues resolved in this release is available here:
https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12311210&version=12342685
The Wiki page for the release is here:
http://activemq.apache.org/activemq-5154-release.html
Release announcement: http://activemq.2283324.n4.nabble.com/ANNOUNCE-Apache-ActiveMQ-5-15-4-Released-td4739771.html
The Apache Software Foundation released Apache ActiveMQ Artemis 2.6.0.
Release notes: https://activemq.apache.org/artemis/release-notes-2.6.0.html
Documentation: https://activemq.apache.org/artemis/docs.html
Release announcement: http://activemq.2283324.n4.nabble.com/ANNOUNCE-ActiveMQ-Artemis-2-6-0-Released-td4739757.html
The RabbitMQ team announced the release of RabbitMQ 3.7.5. Binary and source distributions of the new release can be found on the download page.
RabbitMQ 3.7.5 is a patch release with some bug fixes and enhancements. You can view the changes in the changelog.
Release announcement: https://groups.google.com/forum/#!topic/rabbitmq-users/XkkHZCdDQMg
The 6.0 release will include a new simplified API. You can read more about it here: https://habarisoft.wordpress.com/2018/05/16/habari-client-libraries-6-0-preview-new-api/
The second snapshot fixes a bug in the TBTMQProducer class.
The new snapshot is available in the Habari Client for ActiveMQ and the Habari Client for RabbitMQ download areas:
Release 6.0 is planned for Q4/2018. Users of the 5.x releases are encouraged to download and test the 6.0 snapshot. Feedback is always welcome.
Habari Client libraries enable Object Pascal applications to take advantage of message broker / message queue technology – which is distributed, loosely coupled, reliable and asynchronous – to build integrated systems, using peer-to-peer and publish-subscribe communication models.
The new API in Habari Client libraries 6.0 is based on three new interfaces which reduce the amount of client code:
A IMQContext object encapsulates both the IConnection and the ISession object of the classic API. The connection factory interface contains new methods to create IMQContext objects:
function CreateContext: IMQContext; overload;
function CreateContext(const AcknowledgeMode:
TAcknowledgementMode): IMQContext; overload;
function CreateContext(const Username, Password: string):
IMQContext; overload;
function CreateContext(const Username, Password: string;
const AcknowledgeMode: TAcknowledgementMode):
IMQContext; overload;
The IMQContext provides methods to create messages, producer and consumer objects, destinations (queues, topics, temporary queues, temporary topics, durable subscribers and so forth), and for transaction control (commit, rollback).
A IMQProducer object provides methods to produce and send messages to the broker. As a shortcut, a method allows to send text or bytes messages without creating ITextMessage or IBytesMessage object by providing the text or bytes as a parameter.
function Send(const Destination: IDestination;
const Body: string): IMQProducer; overload;
function Send(const Destination: IDestination;
const AMessage: IMessage): IMQProducer; overload;
...
A IMQConsumer object provides methods to consume messages from the broker.
The following example is taken from the unit tests. It uses the new API to create and send a text message to a broker queue destination, and then receives the message from this queue.
procedure TNewApiTests.TestSendMessage;
var
Context: IMQContext;
Destination: IQueue;
Producer: IMQProducer;
Consumer: IMQConsumer;
TextMessage: ITextMessage;
begin
Context := Factory.CreateContext;
Destination := Context.CreateQueue(GetQueueName);
Producer := Context.CreateProducer;
Producer.Send(Destination, 'Hello World');
Consumer := Context.CreateConsumer(Destination);
TextMessage := Consumer.Receive(2500) as ITextMessage;
CheckEquals('Hello World', TextMessage.Text);
Context.Close;
end;
A snapshot of the new 6.0 release is available in the Habari Client for ActiveMQ and the Habari Client for RabbitMQ download areas:
Release 6.0 is planned for Q4/2018. Users of the 5.x releases are encouraged to download and test the 6.0 snapshot. Feedback is always welcome.
Habari Client libraries enable Object Pascal applications to take advantage of message broker / message queue technology – which is distributed, loosely coupled, reliable and asynchronous – to build integrated systems, using peer-to-peer and publish-subscribe communication models.
Earlier this year, Red Hat released WildFly 12 Final, a free and open source Java EE application server for the Java platform. If you need to exchange data between Delphi or Free Pascal code and WildFly, you can follow these steps for a quick demonstration of the Habari Client for Artemis library from Habarisoft
<subsystem xmlns="urn:jboss:domain:messaging-activemq:3.0">
<server name="default">
...
<acceptor name="stomp-acceptor" factory-class="org.apache.activemq.artemis.core.remoting.impl.netty.NettyAcceptorFactory">
<param name="protocols" value="STOMP"/>
<param name="port" value="61613"/>
</acceptor>
...
<jms-topic name="ExampleTopic" entries="java:/jms/topic/ExampleTopic" />
</server>
</subsystem>The Delphi application now can use the ExampleTopic as the ‘chat room’ for messages between all running instances (and, of course, allows also non-Delphi clients to receive and send messages within this chat room topic as well).
The Apache Software Foundation released Apache ActiveMQ Artemis 2.5.0.
Release notes: https://activemq.apache.org/artemis/release-notes-2.5.0.html
Documentation: https://activemq.apache.org/artemis/docs.html
