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Posted to commits@activemq.apache.org by ma...@apache.org on 2016/10/21 09:56:15 UTC
[12/41] activemq-artemis git commit: Example showing how to use + in
topics
Example showing how to use + in topics
Project: http://git-wip-us.apache.org/repos/asf/activemq-artemis/repo
Commit: http://git-wip-us.apache.org/repos/asf/activemq-artemis/commit/6a9e4c05
Tree: http://git-wip-us.apache.org/repos/asf/activemq-artemis/tree/6a9e4c05
Diff: http://git-wip-us.apache.org/repos/asf/activemq-artemis/diff/6a9e4c05
Branch: refs/heads/ARTEMIS-780
Commit: 6a9e4c05e8a99f472f175f1e2f1e4c8072e968d0
Parents: 7d03bcf
Author: Antoine Toulme <an...@lunar-ocean.com>
Authored: Wed Oct 12 18:36:29 2016 -0700
Committer: Martyn Taylor <mt...@redhat.com>
Committed: Fri Oct 14 10:23:22 2016 +0100
----------------------------------------------------------------------
examples/protocols/mqtt/basic-pubsub/readme.html | 16 ++++++++++------
.../mqtt/example/MQTTBasicPubSubExample.java | 8 ++++++--
2 files changed, 16 insertions(+), 8 deletions(-)
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http://git-wip-us.apache.org/repos/asf/activemq-artemis/blob/6a9e4c05/examples/protocols/mqtt/basic-pubsub/readme.html
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diff --git a/examples/protocols/mqtt/basic-pubsub/readme.html b/examples/protocols/mqtt/basic-pubsub/readme.html
index d9abc9a..ca7dbff 100644
--- a/examples/protocols/mqtt/basic-pubsub/readme.html
+++ b/examples/protocols/mqtt/basic-pubsub/readme.html
@@ -87,26 +87,28 @@ under the License.
<p>Subscriptions in MQTT are realised by subscribing to a particular Topic. Each Topic has an address
and a quality of service level (QoS level). Subscriptions also support wildcards. In the code below we
- subscribe to a Topic with address "mqtt/example/publish" and also a wildcard address "mqtt/#" which will
- match anything starting with "mqtt/".</p>
+ subscribe to a Topic with address "mqtt/example/publish", a wildcard address "test/#" which will
+ match anything starting with "test/" and also a wildcard "foo/+/bar", where + matches a single level of the hierarchy (foo/something/bar)</p>
<pre class="prettyprint">
- Topic[] topics = { new Topic("mqtt/example/publish", QoS.AT_LEAST_ONCE), new Topic("mqtt/#", QoS.EXACTLY_ONCE) };
+ Topic[] topics = { new Topic("mqtt/example/publish", QoS.AT_LEAST_ONCE), new Topic("test/#", QoS.EXACTLY_ONCE), new Topic("foo/+/bar", QoS.AT_LEAST_ONCE) };
connection.subscribe(topics);
</pre>
<li>3. Sending messages</li>
- <p>There is no type system in MQTT, messages simply consist of a number of bytes. Below we send two messages with
- UTF8 encoded strings (as a byte array). Notice the second message is sent to "mqtt/test" which should match
- our wildcard subscription we defined previously.</p>
+ <p>There is no type system in MQTT, messages simply consist of a number of bytes. Below we send three messages with
+ UTF8 encoded strings (as a byte array). Notice the second message is sent to "test/test" which should match
+ the first wildcard subscription we defined previously. The third message is sent to "foo/1/bar", which matches the second wildcard subscription.</p>
<pre class="prettyprint">
String payload1 = "This is message 1";
String payload2 = "This is message 2";
+ String payload3 = "This is message 3";
connection.publish("mqtt/example/publish", payload1.getBytes(), QoS.AT_LEAST_ONCE, false);
connection.publish("mqtt/test", payload2.getBytes(), QoS.AT_MOST_ONCE, false);
+ connection.publish("foo/1/bar", payload3.getBytes(), QoS.AT_MOST_ONCE, false);
</pre>
<li>4. Receiving messages</li>
@@ -119,9 +121,11 @@ under the License.
<pre class="prettyprint">
Message message1 = connection.receive(5, TimeUnit.SECONDS);
Message message2 = connection.receive(5, TimeUnit.SECONDS);
+ Message message3 = connection.receive(5, TimeUnit.SECONDS);
System.out.println(new String(message1.getPayload()));
System.out.println(new String(message2.getPayload()));
+ System.out.println(new String(message3.getPayload()));
</pre>
</o1>
http://git-wip-us.apache.org/repos/asf/activemq-artemis/blob/6a9e4c05/examples/protocols/mqtt/basic-pubsub/src/main/java/org/apache/activemq/artemis/mqtt/example/MQTTBasicPubSubExample.java
----------------------------------------------------------------------
diff --git a/examples/protocols/mqtt/basic-pubsub/src/main/java/org/apache/activemq/artemis/mqtt/example/MQTTBasicPubSubExample.java b/examples/protocols/mqtt/basic-pubsub/src/main/java/org/apache/activemq/artemis/mqtt/example/MQTTBasicPubSubExample.java
index 93fb946..dd64731 100644
--- a/examples/protocols/mqtt/basic-pubsub/src/main/java/org/apache/activemq/artemis/mqtt/example/MQTTBasicPubSubExample.java
+++ b/examples/protocols/mqtt/basic-pubsub/src/main/java/org/apache/activemq/artemis/mqtt/example/MQTTBasicPubSubExample.java
@@ -39,23 +39,27 @@ public class MQTTBasicPubSubExample {
System.out.println("Connected to Artemis");
// Subscribe to topics
- Topic[] topics = {new Topic("mqtt/example/publish", QoS.AT_LEAST_ONCE), new Topic("mqtt/#", QoS.EXACTLY_ONCE)};
+ Topic[] topics = {new Topic("mqtt/example/publish", QoS.AT_LEAST_ONCE), new Topic("test/#", QoS.EXACTLY_ONCE), new Topic("foo/+/bar", QoS.AT_LEAST_ONCE)};
connection.subscribe(topics);
System.out.println("Subscribed to topics.");
// Publish Messages
String payload1 = "This is message 1";
String payload2 = "This is message 2";
+ String payload3 = "This is message 3";
connection.publish("mqtt/example/publish", payload1.getBytes(), QoS.AT_LEAST_ONCE, false);
- connection.publish("mqtt/test", payload2.getBytes(), QoS.AT_MOST_ONCE, false);
+ connection.publish("test/test", payload2.getBytes(), QoS.AT_MOST_ONCE, false);
+ connection.publish("foo/1/bar", payload3.getBytes(), QoS.AT_MOST_ONCE, false);
System.out.println("Sent messages.");
Message message1 = connection.receive(5, TimeUnit.SECONDS);
Message message2 = connection.receive(5, TimeUnit.SECONDS);
+ Message message3 = connection.receive(5, TimeUnit.SECONDS);
System.out.println("Received messages.");
System.out.println(new String(message1.getPayload()));
System.out.println(new String(message2.getPayload()));
+ System.out.println(new String(message3.getPayload()));
}
}