[jira] [Created] (ARIES-1424) Support to load namespace handler for class implementing the interface org.apache.aries.blueprint.NamespaceHandler

[Charles Moulliard (JIRA)]

Charles Moulliard created ARIES-1424:
----------------------------------------

             Summary: Support to load namespace handler for class implementing 
the interface org.apache.aries.blueprint.NamespaceHandler
                 Key: ARIES-1424
                 URL: https://issues.apache.org/jira/browse/ARIES-1424
             Project: Aries
          Issue Type: Improvement
          Components: Web
            Reporter: Charles Moulliard


The existing code of the Apache Aries Blueprint Web 
(org.apache.aries.blueprint.web.BlueprintContextListener) scans to find 
@Namespaces annotated class for namespace handler passed as parameter
like that within the web.xml file 

{code}
    <context-param>
        <param-name>blueprintNamespaceHandlers</param-name>
        
<param-value>org.apache.camel.blueprint.handler.CamelNamespaceHandler</param-value>
    </context-param>
{code}

So I propose to improve existing code to discover also class (like Apache Camel 
Blueprint - CamelNamespaceHandler) implementing - 
org.apache.aries.blueprint.NamespaceHandler

{code}
Namespaces namespaces = nsHandler.getClass().getAnnotation(Namespaces.class);
            if (namespaces != null) {
                for (String ns : namespaces.value()) {
                    servletContext.log("Namespace handler retrieved for 
@Namespaces : " + ns);
                    nsSet.addNamespace(URI.create(ns), 
nsHandler.getSchemaLocation(ns), nsHandler);   
                }
            } else {
                Class<?>[] interfaces = nsHandler.getClass().getInterfaces();
                for(Class<?> clazz : interfaces) {
                    String ns = clazz.getName();
                    if 
(ns.equals("org.apache.aries.blueprint.NamespaceHandler")) {
                        servletContext.log("Class implementing Blueprint 
NamespaceHandler : " + nsHandler.getClass().getName());
                        
nsSet.addNamespace(URI.create(nsHandler.getClass().getName()), 
nsHandler.getSchemaLocation(nsHandler.getClass().getName()), nsHandler);
                    }
                }
{code}



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