update dynamically targeting provider in iPOJO - ipojo

Question

I have a component declared as:
<ipojo>
<component classname="HelloClass" name="helloCom" immediate="true">
<requires field="delayService" id="id1">
</requires>
</component>
<instance component="helloCom" name="hello">
<property name="requires.from">
<property name="id1" value="A"/>
</property>
</instance>
</ipojo>
The jar file of this component :helloComponent.jar
Now, i want to update (value="A") to (value="AA"). Thus, i implement a component using ConfigurationAdmin to update this property
public class ControllerReconfiguration {
private ConfigurationAdmin m_configAdmin;
#SuppressWarnings({ "rawtypes", "unchecked" })
public void reconfigure() throws IOException {
Configuration configuration = m_configAdmin.getConfiguration("hello","file:./helloComponent.jar");
configuration.setBundleLocation("file:./helloComponent.jar");
Properties props = new Properties();
//Dictionary props = new Hashtable();
props.put("id1", "AA");
configuration.update(props);
System.out.println("Update");
}
}
However, this ControllerReconfiguration component can't update the value 'A' (by 'AA') in 'hello' instance.
How to modify this ControllerReconfiguration component, please ?
Thanks you for your help.

Answer 1

Unfortunately, you can't push new 'from' configuration like this.
However, you can use the iPOJO introspection API directly: http://felix.apache.org/documentation/subprojects/apache-felix-ipojo/apache-felix-ipojo-userguide/ipojo-advanced-topics/using-ipojo-introspection-api.html
Retrieve the Architecture service of the instance
Retrieve the InstanceDescription and DependencyDescription
Call the setFilter method

Answer 2

Thanks Clement,
it works fine !!!!! :) I access InstanceManager using Factory.
Ex, in order to access InstanceManager of component "hello.call.CallHello"
#require
private Factory[] factories;
for (Factory factory : factories) {
/*
* "hello.call.CallHello" is a component name
* note: it is not component instance name
*/
if (factory.getName().equals("hello.call.CallHello")) {
/*
* a component can have many instances
* if there is only one instance.
* get(0) return the first instance.
*/
InstanceManager im = (InstanceManager) factory.getInstances().get(0);
}