@Override
    public void getApi(String organizationId, String apiId, String apiVersion,
            IAsyncResultHandler<Api> handler) {
        Api api = getApiInternal(organizationId, apiId, apiVersion);
        handler.handle(AsyncResultImpl.create(api));
    }
@see io.apiman.gateway.engine.IRegistry#getApi(java.lang.String, java.lang.String, java.lang.String, io.apiman.gateway.engine.async.IAsyncResultHandler)
gateway/engine/core/src/main/java/io/apiman/gateway/engine/impl/InMemoryRegistry.java