mkhudyakov commented on issue #1205:
URL:
https://github.com/apache/camel-kamelets/issues/1205#issuecomment-1350194783
Thank you @oscerd
Could you provide an example of dependency defined through the Kamelet, so
that beans and processors are automatically bound to the registry?
1. I have an example of an application
```
final KameletMain main = new KameletMain();
main.configure().setBasePackageScan("com.apache.kamelet.poc");
```
and a `application.properties`
```
camel.component.kamelet.location =
classpath:/kamelets,github:apache:camel-kamelets/kamelets
camel.main.routes-include-pattern = classpath:camel/*
camel.main.routes-reload-enabled = true
camel.main.routes-reload-directory = src/main/resources
camel.main.routes-reload-pattern = camel/*.yaml
camel.main.shutdown-timeout = 5
camel.main.lightweight = false
camel.main.autoConfigurationEnabled=true
camel.main.autoConfigurationEnvironmentVariablesEnabled=true
camel.main.autowiredEnabled=true
camel.main.basePackageScanEnabled=true
```
The application defines the route- `camel/application-route.yaml`
```
- route:
id: "example"
from:
uri: "kamelet:example-source?topic=kafka_topic"
steps:
- log: "${body}"
```
2. The `kamelet:example-source` is defined in separate dependency
(classpath-based lookup above allows application to see it)
```
apiVersion: camel.apache.org/v1alpha1
kind: Kamelet
metadata:
name: example-source
annotations:
camel.apache.org/kamelet.support.level: "Stable"
...
spec:
definition:
...
types:
out:
mediaType: text/plain
dependencies:
- "camel:kamelet"
- "camel:core"
- "camel:kafka"
- "mvn:com.apache.kamelet.poc:kamelet-poc-processors:1.0.0-SNAPSHOT"
template:
from:
uri: "kafka:{{topic}}"
parameters:
brokers: "{{?bootstrapServers}}"
groupId: "{{?consumerGroup}}"
autoCommitEnable: "{{autoCommitEnable}}"
steps:
- bean: "customProcessor"
- to: "kamelet:sink"
```
3. `kamelet-poc-processors` module defines bean & configuration
```
@Configuration
public class CustomConfiguration implements CamelConfiguration {
@BindToRegistry
public CustomProcessor customProcessor() {
return new CustomProcessor();
}
...
public class CustomProcessor {
public void handle(Exchange exchange) throws Exception {
...
```
`KameletMain` pulls dependencies indeed, but then fails with
```
Caused by: org.apache.camel.NoSuchBeanException: No bean could be found in
the registry for: customProcessor
at
org.apache.camel.component.bean.RegistryBean.doGetBean(RegistryBean.java:134)
at
org.apache.camel.component.bean.RegistryBean.getBean(RegistryBean.java:102)
at
org.apache.camel.component.bean.RegistryBean.createCacheHolder(RegistryBean.java:95)
```
However, once we add
`com.apache.kamelet.poc:kamelet-poc-processors:1.0.0-SNAPSHOT` dependency to
application's classpath, the error goes away.
How can such a problem be fixed, so that dependency is defined through the
Kamelet? I will be glad to create a pull request in case such an issue can be
resolved
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