package com.sequenceiq.cloudbreak.cloud.handler;
import javax.inject.Inject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import com.sequenceiq.cloudbreak.cloud.CloudConnector;
import com.sequenceiq.cloudbreak.cloud.context.AuthenticatedContext;
import com.sequenceiq.cloudbreak.cloud.context.CloudContext;
import com.sequenceiq.cloudbreak.cloud.event.resource.DownscaleStackCollectResourcesRequest;
import com.sequenceiq.cloudbreak.cloud.event.resource.DownscaleStackCollectResourcesResult;
import com.sequenceiq.cloudbreak.cloud.init.CloudPlatformConnectors;
import reactor.bus.Event;
import reactor.bus.EventBus;
@Component
public class DownscaleStackCollectResourcesHandler implements CloudPlatformEventHandler<DownscaleStackCollectResourcesRequest> {
private static final Logger LOGGER = LoggerFactory.getLogger(DownscaleStackCollectResourcesHandler.class);
@Inject
private CloudPlatformConnectors cloudPlatformConnectors;
@Inject
private EventBus eventBus;
@Override
public Class<DownscaleStackCollectResourcesRequest> type() {
return DownscaleStackCollectResourcesRequest.class;
}
@Override
public void accept(Event<DownscaleStackCollectResourcesRequest> collectResourcesRequestEvent) {
LOGGER.info("Received event: {}", collectResourcesRequestEvent);
DownscaleStackCollectResourcesRequest request = collectResourcesRequestEvent.getData();
DownscaleStackCollectResourcesResult result;
try {
CloudContext cloudContext = request.getCloudContext();
CloudConnector connector = cloudPlatformConnectors.get(cloudContext.getPlatformVariant());
AuthenticatedContext ac = connector.authentication().authenticate(cloudContext, request.getCloudCredential());
Object resourcesToScale = connector.resources().collectResourcesToRemove(ac, request.getCloudStack(),
request.getCloudResources(), request.getInstances());
LOGGER.info("Collect resources successfully finished for {}", cloudContext);
result = new DownscaleStackCollectResourcesResult(request, resourcesToScale);
} catch (Exception e) {
LOGGER.error("Failed to handle DownscaleStackCollectResourcesRequest.", e);
result = new DownscaleStackCollectResourcesResult(e.getMessage(), e, request);
}
request.getResult().onNext(result);
LOGGER.info("DownscaleStackCollectResourcesRequest finished");
eventBus.notify(result.selector(), new Event(collectResourcesRequestEvent.getHeaders(), result));
}
}