@Override
    public void getApi(String organizationId, String apiId, String apiVersion,
            IAsyncResultHandler<Api> handler) {
        String id = getApiId(organizationId, apiId, apiVersion);
        try {
            Api api = getApi(id);
            handler.handle(AsyncResultImpl.create(api));
        } catch (IOException e) {
            handler.handle(AsyncResultImpl.create(e, Api.class));
        }
    }
@see io.apiman.gateway.engine.IRegistry#getApi(java.lang.String, java.lang.String, java.lang.String, io.apiman.gateway.engine.async.IAsyncResultHandler)
gateway/engine/es/src/main/java/io/apiman/gateway/engine/es/EsRegistry.java