/*
* Copyright (c) 2006, 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.throttle.internal;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceRegistration;
import org.osgi.service.component.ComponentContext;
import org.wso2.carbon.registry.core.Registry;
import org.wso2.carbon.registry.core.exceptions.RegistryException;
import org.wso2.carbon.registry.core.service.RegistryService;
import org.wso2.carbon.registry.core.session.UserRegistry;
import org.wso2.carbon.throttle.ThrottlingAxis2ConfigurationContextObserver;
import org.wso2.carbon.throttle.ThrottlingUtils;
import org.wso2.carbon.user.core.service.RealmService;
import org.wso2.carbon.user.core.tenant.Tenant;
import org.wso2.carbon.utils.Axis2ConfigurationContextObserver;
import org.wso2.carbon.utils.CarbonUtils;
import java.io.IOException;
/**
* @scr.component name="throttle.services" immediate="true"
*@scr.reference name="user.realmservice.default" interface="org.wso2.carbon.user.core.service.RealmService"
* cardinality="1..1" policy="dynamic" bind="setRealmService" unbind="unsetRealmService"
* @scr.reference name="registry.service" interface="org.wso2.carbon.registry.core.service.RegistryService"
* cardinality="1..1" policy="dynamic" bind="setRegistryService" unbind="unsetRegistryService"
*/
public class ThrottleServiceComponent {
private static Log log = LogFactory.getLog(ThrottleServiceComponent.class);
private static RegistryService registryServiceInstance;
private static RealmService realmService;
private static BundleContext bundleContext;
private ServiceRegistration axisConfigContextObserverServiceReg;
protected void activate(ComponentContext ctxt) {
try {
bundleContext = ctxt.getBundleContext();
//Save the template policies in the registry.
saveTemplatePolicies(bundleContext);
axisConfigContextObserverServiceReg = bundleContext.registerService(Axis2ConfigurationContextObserver.class.getName(),
new ThrottlingAxis2ConfigurationContextObserver(),
null);
log.debug("Throttle bundle is activated");
} catch (Throwable e) {
log.error("Failed to activate Throttle bundle", e);
}
}
protected void deactivate(ComponentContext ctxt) {
axisConfigContextObserverServiceReg.unregister();
log.debug("Throttle bundle is deactivated");
}
protected void setRealmService(RealmService realmService) {
this.realmService = realmService;
}
protected void unsetRealmService(RealmService realmService) {
this.realmService = null;
}
protected void setRegistryService(RegistryService registryService) {
registryServiceInstance = registryService;
}
protected void unsetRegistryService(RegistryService registryService) {
registryServiceInstance = null;
}
public static RegistryService getRegistryService() throws Exception {
if (registryServiceInstance == null) {
String msg = "Before activating Throttle Admin bundle, an instance of "
+ "RegistryService should be in existance";
log.error(msg);
throw new Exception(msg);
}
return registryServiceInstance;
}
/**
* Save the template policies in the registry. These will be used to
* generate the policy file when the configuration data are sent
* by the user
*
* @param bundleContext execution context of the throttle bundle
* @throws java.io.IOException
* @throws org.wso2.carbon.registry.core.exceptions.RegistryException
*
*/
private void saveTemplatePolicies(BundleContext bundleContext)
throws RegistryException, IOException {
//Get the registry from the registry service
Registry registry;
if (registryServiceInstance != null) {
registry = registryServiceInstance.getConfigSystemRegistry();
} else {
log.error("Failed to save template policies in throttling component");
return;
}
try {
registry.beginTransaction();
ThrottlingUtils.saveTemplatePoliciesToRegistry(registry);
registry.commitTransaction();
} catch (Exception e) {
registry.rollbackTransaction();
String msg = "Failed to save template policies in throttling component";
log.error(msg, e);
}
}
public static BundleContext getBundleContext() {
CarbonUtils.checkSecurity();
return bundleContext;
}
}