/// <summary>
/// Get the current value.
/// </summary>
/// <param name="exception"></param>
/// <returns>
/// Returns the current batch container.
/// If null then the stream has completed or there was a stream error.
/// If there was a stream error, an error exception will be provided in the output.
/// </returns>
public virtual IBatchContainer GetCurrent(out Exception exception)
{
SimpleQueueCache.Log(logger, "SimpleQueueCacheCursor.GetCurrent: {Current}", current);
exception = null;
return(current);
}
/// <summary>
/// Cursor into a simple queue cache
/// </summary>
/// <param name="cache"></param>
/// <param name="streamIdentity"></param>
/// <param name="logger"></param>
public SimpleQueueCacheCursor(SimpleQueueCache cache, IStreamIdentity streamIdentity, Logger logger)
{
if (cache == null)
{
throw new ArgumentNullException("cache");
}
this.cache = cache;
this.streamIdentity = streamIdentity;
this.logger = logger;
current = null;
SimpleQueueCache.Log(logger, "SimpleQueueCacheCursor New Cursor for {0}, {1}", streamIdentity.Guid, streamIdentity.Namespace);
}
/// <summary>
/// Cursor into a simple queue cache
/// </summary>
/// <param name="cache"></param>
/// <param name="streamIdentity"></param>
/// <param name="logger"></param>
public SimpleQueueCacheCursor(SimpleQueueCache cache, IStreamIdentity streamIdentity, ILogger logger)
{
if (cache == null)
{
throw new ArgumentNullException(nameof(cache));
}
this.cache = cache;
this.streamIdentity = streamIdentity;
this.logger = logger;
current = null;
SimpleQueueCache.Log(logger, "SimpleQueueCacheCursor New Cursor for {Guid}, {NameSpace}", streamIdentity.Guid, streamIdentity.Namespace);
}
/// <summary>
/// Cursor into a simple queue cache
/// </summary>
/// <param name="cache"></param>
/// <param name="streamId"></param>
/// <param name="logger"></param>
public SimpleQueueCacheCursor(SimpleQueueCache cache, StreamId streamId, ILogger logger)
{
if (cache == null)
{
throw new ArgumentNullException(nameof(cache));
}
this.cache = cache;
this.streamId = streamId;
this.logger = logger;
current = null;
SimpleQueueCache.Log(logger, "SimpleQueueCacheCursor New Cursor for {StreamId}, {NameSpace}", streamId);
}
public SimpleQueueCacheCursor(SimpleQueueCache cache, Guid streamGuid, string streamNamespace, Logger logger)
{
if (cache == null)
{
throw new ArgumentNullException("cache");
}
this.cache = cache;
this.streamGuid = streamGuid;
this.streamNamespace = streamNamespace;
this.logger = logger;
current = null;
SimpleQueueCache.Log(logger, "SimpleQueueCacheCursor New Cursor for {0}, {1}", streamGuid, streamNamespace);
}
public SimpleQueueCacheCursor(SimpleQueueCache cache, Guid streamGuid, string streamNamespace, Logger logger)
{
if (cache == null)
{
throw new ArgumentNullException("cache");
}
this.cache = cache;
this.streamGuid = streamGuid;
this.streamNamespace = streamNamespace;
this.logger = logger;
current = null;
SimpleQueueCache.Log(logger, "SimpleQueueCacheCursor New Cursor for {0}, {1}", streamGuid, streamNamespace);
}
/// <summary>
/// Cursor into a simple queue cache
/// </summary>
/// <param name="cache"></param>
/// <param name="streamId"></param>
/// <param name="logger"></param>
public SimpleQueueCacheCursor(SimpleQueueCache cache, StreamId streamId, ILogger logger)
{
if (cache == null)
{
throw new ArgumentNullException(nameof(cache));
}
this.cache = cache;
this.streamId = streamId;
this.logger = logger;
current = null;
if (logger.IsEnabled(LogLevel.Debug))
{
logger.LogDebug("SimpleQueueCacheCursor New Cursor for {StreamId}", streamId);
}
}