event_admin/event_admin/private/src/event_admin_activator.c

/**
 *Licensed to the Apache Software Foundation (ASF) under one
 *or more contributor license agreements.  See the NOTICE file
 *distributed with this work for additional information
 *regarding copyright ownership.  The ASF licenses this file
 *to you under the Apache License, Version 2.0 (the
 *"License"); you may not use this file except in compliance
 *with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *Unless required by applicable law or agreed to in writing,
 *software distributed under the License is distributed on an
 *"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 *specific language governing permissions and limitations
 *under the License.
 */
/*
 * activator.c
 *
 *  Created on: Jul 9, 2013
 *  \author    	<a href="mailto:dev@celix.apache.org">Apache Celix Project Team</a>
 *  \copyright	Apache License, Version 2.0
 */

#include <stdlib.h>

#include "event_admin_impl.h"
#include "log_helper.h"
#include "log_service.h"

struct activator {

	event_admin_service_pt event_admin_service;
	event_admin_pt event_admin;
	service_registration_pt registration;
	service_tracker_pt tracker;
	bundle_context_pt context;
};

celix_status_t bundleActivator_create(bundle_context_pt context, void **userData) {
	celix_status_t status = CELIX_SUCCESS;

	struct activator *activator;
	activator = calloc(1, sizeof(*activator));

	if(!activator) {
		status = CELIX_BUNDLE_EXCEPTION;
	}else {
		activator->registration = NULL;


		*userData = activator;
		event_admin_pt event_admin = NULL;
		event_admin_service_pt event_admin_service = NULL;
		status = eventAdmin_create(context, &event_admin);
		if(status == CELIX_SUCCESS){
			activator->event_admin = event_admin;
			event_admin_service = calloc(1, sizeof(*event_admin_service));
			if(!event_admin_service){
				status = CELIX_ENOMEM;
			} else {
				event_admin->context = context;
				event_admin_service->eventAdmin = event_admin;
				event_admin_service->postEvent = eventAdmin_postEvent;
				event_admin_service->sendEvent = eventAdmin_sendEvent;
				event_admin_service->createEvent = eventAdmin_createEvent;
				event_admin_service->containsProperty = eventAdmin_containsProperty;
				event_admin_service->event_equals = eventAdmin_event_equals;
				event_admin_service->getProperty = eventAdmin_getProperty;
				event_admin_service->getPropertyNames = eventAdmin_getPropertyNames;
				event_admin_service->getTopic = eventAdmin_getTopic;
				event_admin_service->hashCode = eventAdmin_hashCode;
				event_admin_service->matches = eventAdmin_matches;
				event_admin_service->toString = eventAdmin_toString;

				service_tracker_customizer_pt cust = NULL;
				service_tracker_pt tracker = NULL;
				serviceTrackerCustomizer_create(event_admin_service->eventAdmin, eventAdmin_addingService, eventAdmin_addedService, eventAdmin_modifiedService, eventAdmin_removedService, &cust);
				serviceTracker_create(context, (char *) EVENT_HANDLER_SERVICE, cust, &tracker);
				activator->tracker = tracker;
			}
		}
		activator->event_admin_service = event_admin_service;
	}


	return status;
}

celix_status_t bundleActivator_start(void * userData, bundle_context_pt context) {
	celix_status_t status = CELIX_SUCCESS;
	struct activator *activator = userData;
	event_admin_service_pt event_admin_service = NULL;
	properties_pt properties = NULL;

	if(status == CELIX_SUCCESS) {
		struct activator * data = (struct activator *) userData;
		data->context = context;
		serviceTracker_open(data->tracker);
		properties = properties_create();
		event_admin_service = activator->event_admin_service;
		eventAdmin_start(event_admin_service->eventAdmin);
		bundleContext_registerService(context, (char *) EVENT_ADMIN_NAME, event_admin_service, properties, &activator->registration);

	}
	return status;
}

celix_status_t bundleActivator_stop(void * userData, bundle_context_pt context) {
	celix_status_t status = CELIX_SUCCESS;
	struct activator * data =  userData;
    serviceRegistration_unregister(data->registration);
	serviceTracker_close(data->tracker);
	eventAdmin_stop(data->event_admin_service->eventAdmin);
	printf("event admin stopped\n");
	return status;
}


celix_status_t bundleActivator_destroy(void * userData, bundle_context_pt context) {
	celix_status_t status = CELIX_SUCCESS;
	struct activator * data =  userData;
	event_admin_pt event_admin = data->event_admin;
	event_admin_service_pt event_admin_service = data->event_admin_service;
	eventAdmin_destroy(event_admin);
	free(event_admin_service);
	serviceTracker_destroy(data->tracker);

    free(data);

	return status;
}