public static IAttachmentTransformer GetAttachmentTransformer(SlackMessageSubject subject, MessageTransformation transformation)
{
switch (subject)
{
case SlackMessageSubject.BuildCompleted:
return(new BuildCompletedTransformer(transformation));
default:
return(new MessageNoChangeTransformer());
}
}
public void ProcessMessage(JObject message, SlackMessageSubject subject)
{
var slackMessage = JsonConvert.DeserializeObject <SlackMessage>(message.ToString());
if (slackMessage == null)
{
_logger.Log(LogLevel.Warning, $"Invalid message received {message}");
return;
}
foreach (var teamConfiguration in _configuration.TeamConfigurations)
{
_logger.Log(LogLevel.Information, $"Checking filters for team {teamConfiguration.Name}...");
ProcessMessageByTeam(subject, slackMessage, teamConfiguration);
}
}
public static IAttachmentFilter GetAttachmentFilter(SlackMessageSubject subject, TeamConfiguration teamConfiguration, SlackFilterConfiguration configuration)
{
switch (subject)
{
case SlackMessageSubject.BuildCompleted:
return(new BuildCompletedFilter(teamConfiguration, new VstsClient(configuration)));
case SlackMessageSubject.PullRequestCreated:
return(new PullRequestCreatedFilter(teamConfiguration));
case SlackMessageSubject.ReleaseCompleted:
return(new ReleaseCompletedFilter(teamConfiguration, new VstsClient(configuration)));
default:
return(new MessageWithNoFilter());
}
}
private void ProcessMessageByTeam(SlackMessageSubject subject, SlackMessage slackMessage,
TeamConfiguration teamConfiguration)
{
var passingAttachments = slackMessage.Attachments
.Where(_ => PassFilter(_, subject, teamConfiguration)).ToArray();
if (passingAttachments.Any())
{
var messageToPost = new SlackMessage
{
Attachments = passingAttachments
.Select(_ => TransformMessage(_, subject, teamConfiguration.MessageTransformation))
.ToArray()
};
PostMessageToSlack(JsonConvert.SerializeObject(messageToPost), teamConfiguration.SlackUrl);
}
else
{
_logger.Log(LogLevel.Information, "Failed to pass the filter.");
}
}
private static MessageAttachment TransformMessage(MessageAttachment attachment, SlackMessageSubject subject, MessageTransformation transformation)
{
var attachmentTransformer = AttachmentTransformerFactory.GetAttachmentTransformer(subject, transformation);
return(attachmentTransformer.TransformAttachment(attachment));
}
private static bool PassFilter(MessageAttachment attachment, SlackMessageSubject subject, TeamConfiguration configuration)
{
var attachmentFilter = AttachmentFilterFactory.GetAttachmentFilter(subject, configuration, _configuration);
return(attachmentFilter != null && attachmentFilter.PassFilter(attachment));
}
