/*
* Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* Licensed 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.
*/
package org.wso2.carbon.event.stream.core.internal.ds;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.osgi.service.component.ComponentContext;
import org.wso2.carbon.event.stream.core.EventStreamListener;
import org.wso2.carbon.event.stream.core.EventStreamService;
import org.wso2.carbon.event.stream.core.internal.CarbonEventStreamService;
import org.wso2.carbon.event.stream.core.internal.EventStreamRuntime;
import org.wso2.carbon.utils.ConfigurationContextService;
/**
* @scr.component name="eventStreamService.component" immediate="true"
* @scr.reference name="config.context.service"
* interface="org.wso2.carbon.utils.ConfigurationContextService" cardinality="0..1" policy="dynamic"
* bind="setConfigurationContextService" unbind="unsetConfigurationContextService"
* @scr.reference name="eventStreamListener.service"
* interface="org.wso2.carbon.event.stream.core.EventStreamListener" cardinality="0..n" policy="dynamic"
* bind="setEventStreamListener" unbind="unsetEventStreamListener"
*/
public class EventStreamServiceDS {
private static final Log log = LogFactory.getLog(EventStreamServiceDS.class);
protected void activate(ComponentContext context) {
try {
EventStreamServiceValueHolder.registerEventStreamRuntime(new EventStreamRuntime());
CarbonEventStreamService carbonEventStreamService = new CarbonEventStreamService();
EventStreamServiceValueHolder.setCarbonEventStreamService(carbonEventStreamService);
context.getBundleContext().registerService(EventStreamService.class.getName(), carbonEventStreamService, null);
if (log.isDebugEnabled()) {
log.debug("Successfully deployed EventStreamService");
}
} catch (Throwable e) {
log.error("Could not create EventStreamService : " + e.getMessage(), e);
}
}
protected void setConfigurationContextService(ConfigurationContextService configurationContextService) {
EventStreamServiceValueHolder.registerConfigurationContextService(configurationContextService);
if (EventStreamServiceValueHolder.getCarbonEventStreamService() != null) {
EventStreamServiceValueHolder.getCarbonEventStreamService().addPendingStreams();
}
}
protected void unsetConfigurationContextService(ConfigurationContextService configurationContextService) {
EventStreamServiceValueHolder.registerConfigurationContextService(null);
}
protected void setEventStreamListener(EventStreamListener eventStreamListener) {
EventStreamServiceValueHolder.registerEventStreamListener(eventStreamListener);
}
protected void unsetEventStreamListener(EventStreamListener eventStreamListener) {
EventStreamServiceValueHolder.unregisterEventStreamListener(eventStreamListener);
}
}