DeleteErrorFileListener.java example

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atlas-lb-master
package org.openstack.atlas.api.async;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.openstack.atlas.service.domain.entities.LoadBalancer;
import org.openstack.atlas.service.domain.entities.LoadBalancerStatus;
import org.openstack.atlas.service.domain.exceptions.EntityNotFoundException;
import org.openstack.atlas.service.domain.pojos.MessageDataContainer;
import org.openstack.atlas.service.domain.services.helpers.AlertType;

import javax.jms.Message;

import static org.openstack.atlas.service.domain.services.helpers.AlertType.DATABASE_FAILURE;

public class DeleteErrorFileListener extends BaseListener {

    private final Log LOG = LogFactory.getLog(DeleteErrorFileListener.class);

    public void doOnMessage(final Message message) throws Exception {
        String msg = String.format("Inside %s.doMessage", this.getClass().getName());
        LOG.debug("Entering " + getClass());
        LOG.debug(message);
        MessageDataContainer data = getDataContainerFromMessage(message);

        LoadBalancer dbLoadBalancer = null;

        if (data.getAccountId() != null && data.getLoadBalancerId() != null) {
            try {
                dbLoadBalancer = loadBalancerService.get(data.getLoadBalancerId(), data.getAccountId());
            } catch (EntityNotFoundException enfe) {
                String alertDescription = String.format("Load balancer '%d' not found in database.", data.getLoadBalancerId());
                LOG.error(alertDescription, enfe);
                notificationService.saveAlert(data.getAccountId(), data.getLoadBalancerId(), enfe, DATABASE_FAILURE.name(), alertDescription);
                return;
            }

            LOG.debug("About to remove the error file from zeus... ");

            try {
                if (isRestAdapter()) {
                    LOG.debug(String.format("Deleting error file for %s in STM...", dbLoadBalancer.getId()));
                    reverseProxyLoadBalancerStmService.deleteErrorFile(dbLoadBalancer, loadBalancerService.getUserPages(data.getLoadBalancerId(), data.getAccountId()));
                    LOG.debug(String.format("Successfully deleted error file for %s in Zeus...", dbLoadBalancer.getId()));
                } else {
                    LOG.debug(String.format("Deleting error file for %s in ZXTM...", dbLoadBalancer.getId()));
                    reverseProxyLoadBalancerService.deleteErrorFile(dbLoadBalancer);
                    LOG.debug(String.format("Successfully deleted error file for %s in Zeus...", dbLoadBalancer.getId()));
                }
            } catch (Exception e) {
                loadBalancerService.setStatus(dbLoadBalancer, LoadBalancerStatus.ERROR);
                String tmpMsg = String.format("Error setting Errorfile for %d_%d", data.getAccountId(), data.getLoadBalancerId());
                LOG.error(tmpMsg, e);
                notificationService.saveAlert(data.getAccountId(), data.getLoadBalancerId(), e, AlertType.ZEUS_FAILURE.name(), msg);
                return;
            }

            //Set status record
            loadBalancerService.setStatus(dbLoadBalancer, LoadBalancerStatus.ACTIVE);
            LOG.debug("Successfully removed the error file from zeus... ");
        } else {
            //TODO I feel like there should be something else here -- this whole listener is a bit sparse
            LOG.error("Error LoadbalancerId or accountId was null in call to DeleteErrorFileListener");
        }
    }
}