com.persistent.cloudninja.scheduler.TenantDeletionTask.java Source code

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Here is the source code for com.persistent.cloudninja.scheduler.TenantDeletionTask.java

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/*******************************************************************************
 * Copyright 2012 Persistent Systems Ltd.
 * 
 * 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 com.persistent.cloudninja.scheduler;

import java.net.URISyntaxException;
import java.security.InvalidKeyException;

import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.util.StopWatch;

import com.microsoft.windowsazure.services.core.storage.StorageException;
import com.persistent.cloudninja.dao.TaskCompletionDao;
import com.persistent.cloudninja.service.ProvisioningService;
import com.persistent.cloudninja.utils.SchedulerSettings;
import com.persistent.cloudninja.utils.StorageClientUtility;

/**
 * Task which listens to TenantDeletionQueue. After receiving a message it deletes
 * the tenant specified in message.
 */
@Component
public class TenantDeletionTask extends TaskActivityBase {

    private static final Logger LOGGER = Logger.getLogger(TenantDeletionTask.class);

    @Autowired
    private TaskCompletionDao taskCompletionDao;

    @Autowired
    private ProvisioningService provisioningService;

    public TenantDeletionTask() throws InvalidKeyException, URISyntaxException {
        super(new TenantDeletionQueue(SchedulerSettings.TenantDeletionQueue,
                StorageClientUtility.getCloudStorageAccount().createCloudQueueClient()));
    }

    @Override
    public boolean execute() {
        boolean retval = true;
        try {
            TenantDeletionQueue tntDeletionQueue = (TenantDeletionQueue) getWorkQueue();
            String tenantId = tntDeletionQueue.dequeue(SchedulerSettings.MessageVisibilityTimeout);
            if (tenantId == null) {
                LOGGER.debug("Msg is null");
                retval = false;
            } else {
                StopWatch watch = new StopWatch();
                watch.start();
                provisioningService.removeTenant(tenantId);
                LOGGER.debug("tenant deleted :" + tenantId);
                watch.stop();
                taskCompletionDao.updateTaskCompletionDetails(watch.getTotalTimeSeconds(), "DeleteTenant",
                        "Tenant Id " + tenantId + " is deleted.");
            }
        } catch (StorageException e) {
            retval = false;
            LOGGER.error(e.getMessage(), e);
        }
        return retval;
    }

}