/// <summary>
/// Initializes the subscription field.
/// </summary>
/// <param name="settings">The settings.</param>
/// <returns>The subscription.</returns>
private SubscriptionDescription GetSubscription(EventHubJobSettings settings)
{
var topicPath = settings.Subscription.TopicPath;
var subscriptionName = settings.Subscription.Name;
if (!this.TopicExists)
{
throw new InvalidOperationException(string.Format("The topic '{0}' does not exist.", topicPath));
}
var subscriptionExists = this.NamespaceManager.SubscriptionExists(topicPath, subscriptionName);
if (!subscriptionExists)
{
ADXTrace.Instance.TraceInfo(TraceCategory.Application, string.Format("Creating Subscription '{0}' for topic '{1}'.", subscriptionName, topicPath));
return(this.CreateSubscription(settings.Subscription));
}
if (settings.RecreateSubscription)
{
ADXTrace.Instance.TraceInfo(TraceCategory.Application, string.Format("Deleting Subscription '{0}' for topic '{1}'.", subscriptionName, topicPath));
this.NamespaceManager.DeleteSubscription(topicPath, subscriptionName);
ADXTrace.Instance.TraceInfo(TraceCategory.Application, string.Format("Creating Subscription '{0}' for topic '{1}'.", subscriptionName, topicPath));
return(this.CreateSubscription(settings.Subscription));
}
ADXTrace.Instance.TraceInfo(TraceCategory.Application, string.Format("Using Subscription '{0}' for topic '{1}'.", subscriptionName, topicPath));
return(this.NamespaceManager.GetSubscription(topicPath, subscriptionName));
}
/// <summary>
/// Initializes a new instance of the <see cref="EventHubJobManager" /> class.
/// </summary>
/// <param name="context">The organization service context.</param>
/// <param name="settings">The settings.</param>
public EventHubJobManager(CrmDbContext context, EventHubJobSettings settings)
{
this.Settings = settings;
this.organizationId = new Lazy <Guid>(() => GetOrganizationId(context), LazyThreadSafetyMode.PublicationOnly);
this.Reset();
}
/// <summary>
/// Creates the subscription client.
/// </summary>
/// <param name="settings">The settings.</param>
/// <returns>The subscription client.</returns>
private SubscriptionClient GetSubscriptionClient(EventHubJobSettings settings)
{
if (this.Subscription != null)
{
var topicPath = this.Subscription.TopicPath;
var subscriptionName = this.Subscription.Name;
return(SubscriptionClient.CreateFromConnectionString(settings.ConnectionString, topicPath, subscriptionName));
}
throw new InvalidOperationException(string.Format("The subscription '{0}' for topic '{1}' is not ready.", settings.Subscription.Name, settings.Subscription.TopicPath));
}
/// <summary>
/// Initializes the topic exists field.
/// </summary>
/// <param name="settings">The settings.</param>
/// <returns>The topic exists flag.</returns>
private bool GetTopicExists(EventHubJobSettings settings)
{
var topicPath = settings.Subscription.TopicPath;
var exists = this.NamespaceManager.TopicExists(topicPath);
if (!exists)
{
throw new InvalidOperationException(string.Format("The topic '{0}' does not exist.", topicPath));
}
return(true);
}
/// <summary>
/// Initializes the namespace manager field.
/// </summary>
/// <param name="settings">The settings.</param>
/// <returns>The namespace manager.</returns>
private static Func <NamespaceManager> CreateNamespaceManager(EventHubJobSettings settings)
{
return(() => NamespaceManager.CreateFromConnectionString(settings.ConnectionString));
}
