/*
* 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.
*/
package org.apache.stratos.messaging.message.processor.tenant;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.stratos.messaging.domain.tenant.Tenant;
import org.apache.stratos.messaging.event.tenant.TenantSubscribedEvent;
import org.apache.stratos.messaging.message.processor.MessageProcessor;
import org.apache.stratos.messaging.message.receiver.tenant.TenantManager;
import org.apache.stratos.messaging.util.Util;
/**
* Tenant subscribed message processor for updating a tenant in tenant manager and
* triggering tenant subscribed event listeners.
*/
public class TenantSubscribedMessageProcessor extends MessageProcessor {
private static final Log log = LogFactory.getLog(TenantSubscribedMessageProcessor.class);
private MessageProcessor nextProcessor;
@Override
public void setNext(MessageProcessor nextProcessor) {
this.nextProcessor = nextProcessor;
}
@Override
public boolean process(String type, String message, Object object) {
if (TenantSubscribedEvent.class.getName().equals(type)) {
// Return if tenant manager has not initialized
if(!TenantManager.getInstance().isInitialized()) {
return false;
}
// Parse complete message and build event
TenantSubscribedEvent event = (TenantSubscribedEvent) Util.jsonToObject(message, TenantSubscribedEvent.class);
try {
TenantManager.acquireWriteLock();
Tenant tenant = TenantManager.getInstance().getTenant(event.getTenantId());
if(tenant == null) {
if(log.isWarnEnabled()) {
log.warn(String.format("Tenant not found: [tenant-id] %d", event.getTenantId()));
}
return false;
}
tenant.addServiceSubscription(event.getServiceName());
if(log.isInfoEnabled()) {
log.info(String.format("Tenant subscribed to service: [tenant-id] %d [tenant-domain] %s [service] %s",
tenant.getTenantId(), tenant.getTenantDomain(), event.getServiceName()));
}
// Notify event listeners
notifyEventListeners(event);
return true;
}
finally {
TenantManager.releaseWriteLock();
}
}
else {
if(nextProcessor != null) {
return nextProcessor.process(type, message, object);
}
else {
throw new RuntimeException(String.format("Failed to process tenant message using available message processors: [type] %s [body] %s", type, message));
}
}
}
}