fix errors and improve caffeine example
diff --git a/generic-examples/caffeine/README.md b/generic-examples/caffeine/README.md
index 0be603f..b10058a 100644
--- a/generic-examples/caffeine/README.md
+++ b/generic-examples/caffeine/README.md
@@ -1,3 +1,35 @@
# Caffeine Camel K examples
-Find useful examples about how to use Caffeine in a Camel K integration.
\ No newline at end of file
+This examples demonstrate how to use Caffeine cache in a Camel K integration.
+
+You can find more information about Apache Camel and Apache Camel K on the [official Camel website](https://camel.apache.org).
+
+## Before you begin
+
+Read the general instructions in the [root README.md file](/README.md) for setting up your environment and the Kubernetes cluster before looking at this example.
+
+Make sure you've read the [installation instructions](https://camel.apache.org/camel-k/latest/installation/installation.html) for your specific
+cluster before starting the example.
+
+## Understanding the Example
+
+- [`CaffeineCacheSample.java`](./CaffeineCacheSample.java) defines a route that every second:
+ - uses message headers to PUT a key-value pair in the cache and log the result
+ - uses message headers to GET the cached value for the key and log the result
+ - uses message headers to INVALIDATE the cached value for the key, logs about invalidating the data
+ - uses message headers to GET the now discarded cached value for the key and log the result
+- [`camel-caffeine.groovy`](./camel-caffeine.groovy) does the same thing as `CaffeineCacheSample.java` except that a bean is defined and accumulation of cache statistics is enabled.
+
+## Running the Example
+To see the logs in the terminal, run the integration in dev mode:
+```
+kamel run --dev CaffeineCacheSample.java
+```
+
+The following should be logged continuously to the terminal:
+```console
+[1] 2022-06-24 12:58:06,352 INFO [route1] (Camel (camel-1) thread #1 - timer://tick) Result of Action PUT with key 1 is: Hello
+[1] 2022-06-24 12:58:06,355 INFO [route1] (Camel (camel-1) thread #1 - timer://tick) Result of Action GET with key 1 is: Hello
+[1] 2022-06-24 12:58:06,355 INFO [route1] (Camel (camel-1) thread #1 - timer://tick) Invalidating entry with key 1
+[1] 2022-06-24 12:58:06,357 INFO [route1] (Camel (camel-1) thread #1 - timer://tick) The Action GET with key 1 has result? false
+```
\ No newline at end of file
diff --git a/generic-examples/caffeine/camel-caffeine.groovy b/generic-examples/caffeine/camel-caffeine.groovy
index fb09740..0987bfe 100644
--- a/generic-examples/caffeine/camel-caffeine.groovy
+++ b/generic-examples/caffeine/camel-caffeine.groovy
@@ -19,7 +19,7 @@
//
// To run this integration use:
//
-// kamel run groovy examples/camel-caffeine.groovy
+// kamel run camel-caffeine.groovy
//
import com.github.benmanes.caffeine.cache.Caffeine
@@ -34,26 +34,26 @@
it.in.headers['CamelCaffeineAction'] = 'PUT'
it.in.headers['CamelCaffeineKey'] = 1
}
- .toF('caffeine-cache://%s?cache=#caffeineCache', 'test')
+ .toF('caffeine-cache://%s', 'caffeineCache')
.log('Result of Action ${header.CamelCaffeineAction} with key ${header.CamelCaffeineKey} is: ${body}')
.setBody().constant(null)
.process {
it.in.headers['CamelCaffeineAction'] = 'GET'
it.in.headers['CamelCaffeineKey'] = 1
}
- .toF('caffeine-cache://%s?cache=#caffeineCache', 'test')
+ .toF('caffeine-cache://%s', 'caffeineCache')
.log('Result of Action ${header.CamelCaffeineAction} with key ${header.CamelCaffeineKey} is: ${body}')
.setBody().constant(null)
.process {
it.in.headers['CamelCaffeineAction'] = 'INVALIDATE'
it.in.headers['CamelCaffeineKey'] = 1
}
- .toF('caffeine-cache://%s?cache=#caffeineCache', 'test')
+ .toF('caffeine-cache://%s', 'caffeineCache')
.log('Invalidating entry with key ${header.CamelCaffeineKey}')
.setBody().constant(null)
.process {
it.in.headers['CamelCaffeineAction'] = 'GET'
it.in.headers['CamelCaffeineKey'] = 1
}
- .toF('caffeine-cache://%s?cache=#caffeineCache', 'test')
+ .toF('caffeine-cache://%s', 'caffeineCache')
.log('The Action ${header.CamelCaffeineAction} with key ${header.CamelCaffeineKey} has result? ${header.CamelCaffeineActionHasResult}');
