Added initial implementation of Topology-related event and
event metrics collector. It can be loaded by one of the following two (new)
features: onos-app-metrics, onos-app-metrics-topology
After loading the module, it subscribes for topology-related events
and keeps the following state:
(a) The last 10 events
(b) The timestamp of the last event (ms after epoch) as observed by this
module
(c) The rate of the topology events: count, median rate, average rate
over the last 1, 5 or 15 minutes
The following CLI commands are added:
* onos:topology-events
Shows the last 10 topology events
* onos:topology-events-metrics
Shows the timestamp of the last event, and the rate of the topology
events: see (b) and (c) above
diff --git a/apps/metrics/pom.xml b/apps/metrics/pom.xml
new file mode 100644
index 0000000..0ce3913
--- /dev/null
+++ b/apps/metrics/pom.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+
+ <parent>
+ <groupId>org.onlab.onos</groupId>
+ <artifactId>onos-apps</artifactId>
+ <version>1.0.0-SNAPSHOT</version>
+ <relativePath>../pom.xml</relativePath>
+ </parent>
+
+ <artifactId>onos-app-metrics</artifactId>
+ <packaging>pom</packaging>
+
+ <description>ONOS metrics applications</description>
+
+ <modules>
+ <module>topology</module>
+ </modules>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.onlab.onos</groupId>
+ <artifactId>onlab-misc</artifactId>
+ </dependency>
+
+ <dependency>
+ <groupId>com.fasterxml.jackson.core</groupId>
+ <artifactId>jackson-databind</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>com.fasterxml.jackson.core</groupId>
+ <artifactId>jackson-annotations</artifactId>
+ </dependency>
+
+ </dependencies>
+
+</project>