public static async Task BuildEvent(
[QueueTrigger(AzureConstants.QueueNames.BuildEvent)] string message,
[Queue(AzureConstants.QueueNames.ProcessBuild)] CloudQueue processBuildQueue,
[Table(AzureConstants.TableNames.UnprocessedBuild)] CloudTable unprocessedBuildTable,
TextWriter logger,
CancellationToken cancellationToken)
{
var messageJson = (BuildEventMessageJson)JsonConvert.DeserializeObject(message, typeof(BuildEventMessageJson));
// First make sure that we note this value in the unprocessed table as it has not yet
// been processed.
var entity = new UnprocessedBuildEntity(messageJson.BoundBuildId);
var operation = TableOperation.InsertOrReplace(entity);
await unprocessedBuildTable.ExecuteAsync(TableOperation.InsertOrReplace(entity));
// If this is a finalized event then the build is ready. Go ahead and process it now.
if (messageJson.Phase == "FINALIZED")
{
logger.WriteLine($"Queue event to process build {messageJson.BuildId}");
await StateUtil.EnqueueProcessBuild(processBuildQueue, messageJson.JenkinsHostName, messageJson.BuildId);
}
}
private async Task UpdateEntity(UnprocessedBuildEntity entity, CloudQueue processBuildQueue, CancellationToken cancellationToken)
{
var jenkinsUri = entity.BoundBuildId.HostUri;
var buildId = entity.BuildId;
var client = CreateJenkinsClient(jenkinsUri, entity.JobId);
try
{
var buildInfo = await client.GetBuildInfoAsync(buildId);
if (buildInfo.State == BuildState.Running)
{
_logger.WriteLine($"Build {buildId}: stil running");
if (string.IsNullOrEmpty(entity.StatusText))
{
entity.StatusText = "Still running";
try
{
await _unprocessedBuildTable.ExecuteAsync(TableOperation.Replace(entity));
}
catch
{
// Can be deleted in parallel. That's okay and should be ignored.
}
}
}
else
{
_logger.WriteLine($"Build {buildId}: sending for processing as it's completed");
await EnqueueProcessBuild(processBuildQueue, jenkinsUri.Host, buildId);
}
}
catch (Exception e)
{
_logger.WriteLine($"Build {buildId}: error querying Jenkins: {e}");
}
}
/// <summary>
/// Populate the given build and update the unprocessed table accordingly. If there is no
/// existing entity in the unprocessed table, this won't add one. It will only update existing
/// ones.
/// </summary>
internal async Task Populate(BuildId buildId, BuildTablePopulator populator, bool force, CancellationToken cancellationToken)
{
var key = UnprocessedBuildEntity.GetEntityKey(buildId);
try
{
// If we are not forcing the update then check for the existence of a completed run before
// requerying Jenkins.
if (force || !(await populator.IsPopulated(buildId)))
{
await populator.PopulateBuild(buildId);
}
await AzureUtil.MaybeDeleteAsync(_unprocessedBuildTable, key, cancellationToken);
}
catch (Exception e)
{
// Update the error state for the row.
var entity = await AzureUtil.QueryAsync <UnprocessedBuildEntity>(_unprocessedBuildTable, key, cancellationToken);
if (entity != null)
{
entity.StatusText = $"{e.Message} - {e.StackTrace.Take(1000)}";
var operation = TableOperation.Replace(entity);
try
{
await _unprocessedBuildTable.ExecuteAsync(operation);
}
catch
{
// It's possible the enity was deleted / updated in parallel. That's okay. This table
// is meant as an approximation of the build state and always moving towards complete.
}
}
}
}
