/*
* Copyright (c) 2005-2008, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* WSO2 Inc. 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.
*
*/
package org.wso2.carbon.governance.registry.eventing.internal;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.axis2.engine.ListenerManager;
import org.osgi.service.component.ComponentContext;
import org.wso2.carbon.registry.core.service.RegistryService;
import org.wso2.carbon.registry.core.Registry;
import org.wso2.carbon.registry.core.jdbc.handlers.filters.URLMatcher;
import org.wso2.carbon.registry.core.jdbc.handlers.HandlerLifecycleManager;
import org.wso2.carbon.registry.app.RemoteRegistryService;
import org.wso2.carbon.registry.common.eventing.NotificationService;
import org.wso2.carbon.governance.registry.eventing.handlers.GovernanceEventingHandler;
/**
* @scr.component name="org.wso2.carbon.governance.registry.eventing" immediate="true"
* @scr.reference name="registry.service"
* interface="org.wso2.carbon.registry.core.service.RegistryService" cardinality="1..1"
* policy="dynamic" bind="setRegistryService" unbind="unsetRegistryService"
* @scr.reference name="listener.manager.service"
* interface="org.apache.axis2.engine.ListenerManager" cardinality="0..1" policy="dynamic"
* bind="setListenerManager" unbind="unsetListenerManager"
* @scr.reference name="registry.notification.service"
* interface="org.wso2.carbon.registry.common.eventing.NotificationService" cardinality="1..1"
* policy="dynamic" bind="setRegistryNotificationService" unbind="unsetRegistryNotificationService"
*/
public class GovernanceRegistryEventingServiceComponent {
private static Log log = LogFactory.getLog(GovernanceRegistryEventingServiceComponent.class);
private Registry registry = null;
private ListenerManager listenerManager = null;
private boolean initialized = false;
protected void activate(ComponentContext context) {
log.debug("Governance Eventing bundle is activated ");
}
protected void deactivate(ComponentContext context) {
log.debug("Governance Eventing bundle is deactivated ");
}
protected void setRegistryService(RegistryService registryService) {
Utils.setRegistryService(registryService);
initailize();
}
protected void unsetRegistryService(RegistryService registryService) {
Utils.setRegistryService(null);
}
protected void setRegistryNotificationService(NotificationService notificationService) {
Utils.setRegistryNotificationService(notificationService);
initailize();
}
protected void unsetRegistryNotificationService(NotificationService notificationService) {
Utils.setRegistryNotificationService(null);
}
protected void setListenerManager(ListenerManager listenerManager) {
this.listenerManager = listenerManager;
initailize();
}
protected void unsetListenerManager(ListenerManager listenerManager) {
this.listenerManager = null;
}
private void initailize() {
RegistryService registryService = Utils.getRegistryService();
if (!initialized &&
listenerManager != null && registryService != null &&
Utils.getRegistryNotificationService() != null) {
if (registryService instanceof RemoteRegistryService) {
initialized = true;
log.warn("Eventing is not available on Remote Registry");
return;
}
initialized = true;
try {
// We can't get Registry from Utils, as the MessageContext is not available at
// activation time.
Registry systemRegistry = registryService.getConfigSystemRegistry();
if (registry != null && registry == systemRegistry) {
// Handler has already been set.
return;
}
registry = systemRegistry;
if (registry == null ||
registry.getRegistryContext() == null ||
registry.getRegistryContext().getHandlerManager() == null) {
String msg = "Error Initializing Governance Eventing Handler";
log.error(msg);
} else {
URLMatcher filter = new URLMatcher();
filter.setPutPattern(".*");
filter.setInvokeAspectPattern(".*");
GovernanceEventingHandler handler = new GovernanceEventingHandler();
registry.getRegistryContext().getHandlerManager().addHandler(null, filter,
handler, HandlerLifecycleManager.DEFAULT_REPORTING_HANDLER_PHASE);
handler.init(registry.getEventingServiceURL(null));
log.debug("Successfully Initialized the Governance Eventing Handler");
}
} catch (Exception e) {
String msg = "Error Initializing Eventing on Registry";
log.error(msg, e);
throw new RuntimeException(msg, e);
}
}
}
}