public static void TrySavingTopologyToLocalCache(string serverHash, ClusterTopologyResponse clusterTopology, JsonOperationContext context)
{
try
{
var path = GetClusterTopologyPath(serverHash);
if (clusterTopology == null)
{
ClearTopologyFromLocalCache(serverHash);
return;
}
using (var stream = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.Read))
using (var writer = new BlittableJsonTextWriter(context, stream))
{
var json = new DynamicJsonValue
{
[nameof(clusterTopology.Topology)] = clusterTopology.Topology.ToJson(),
[nameof(clusterTopology.Leader)] = clusterTopology.Leader,
[nameof(clusterTopology.NodeTag)] = clusterTopology.NodeTag
};
context.Write(writer, json);
writer.Flush();
}
}
catch (Exception e)
{
if (_logger.IsInfoEnabled)
{
_logger.Info("Could not persist the replication information", e);
}
}
}
public static void TrySaving(string topologyHash, ClusterTopologyResponse clusterTopology, JsonOperationContext context)
{
try
{
var path = GetPath(topologyHash);
if (clusterTopology == null)
{
Clear(path);
return;
}
using (var stream = SafeFileStream.Create(path, FileMode.Create, FileAccess.Write, FileShare.Read))
using (var writer = new BlittableJsonTextWriter(context, stream))
{
var json = new DynamicJsonValue
{
[nameof(clusterTopology.Topology)] = clusterTopology.Topology.ToJson(),
[nameof(clusterTopology.Leader)] = clusterTopology.Leader,
[nameof(clusterTopology.NodeTag)] = clusterTopology.NodeTag,
["PersistedAt"] = DateTimeOffset.UtcNow.ToString(DefaultFormat.DateTimeOffsetFormatsToWrite),
};
context.Write(writer, json);
writer.Flush();
}
}
catch (Exception e)
{
if (_logger.IsInfoEnabled)
{
_logger.Info("Could not persist the cluster topology", e);
}
}
}
public static async Task TrySavingAsync(string topologyHash, ClusterTopologyResponse clusterTopology, DocumentConventions conventions, JsonOperationContext context, CancellationToken token)
{
try
{
if (conventions.DisableTopologyCache)
{
return;
}
var path = GetPath(topologyHash, conventions);
if (clusterTopology == null)
{
Clear(path);
return;
}
using (var stream = SafeFileStream.Create(path, FileMode.Create, FileAccess.Write, FileShare.Read))
await using (var writer = new AsyncBlittableJsonTextWriter(context, stream))
{
var json = new DynamicJsonValue
{
[nameof(clusterTopology.Topology)] = clusterTopology.Topology.ToJson(),
[nameof(clusterTopology.Leader)] = clusterTopology.Leader,
[nameof(clusterTopology.NodeTag)] = clusterTopology.NodeTag,
[nameof(clusterTopology.Etag)] = clusterTopology.Etag,
["PersistedAt"] = DateTimeOffset.UtcNow.ToString(DefaultFormat.DateTimeOffsetFormatsToWrite),
};
context.Write(writer, json);
await writer.FlushAsync(token).ConfigureAwait(false);
}
}
catch (Exception e)
{
if (_logger.IsInfoEnabled)
{
_logger.Info("Could not persist the cluster topology", e);
}
}
}