/*
* Configuration management APIs
*/
public ReplicatedTableQuorumReadResult RetrieveConfiguration(out ReplicatedTableConfiguration configuration)
{
List <string> eTags;
ReplicatedTableQuorumReadResult
result = CloudBlobHelpers.TryReadBlobQuorum(
this.configManager.GetBlobs(),
out configuration,
out eTags,
ReplicatedTableConfiguration.FromJson);
if (result.Code != ReplicatedTableQuorumReadCode.Success)
{
ReplicatedTableLogger.LogError("Failed to read configuration, \n{0}", result.ToString());
}
return(result);
}
/// <summary>
/// Parses the RTable configuration blobs.
/// Returns the list of views, the list of configured tables and the lease duration.
/// If null is returned, then the value of tableConfigList/leaseDuration are not relevant.
/// </summary>
/// <param name="blobs"></param>
/// <param name="useHttps"></param>
/// <param name="tableConfigList"></param>
/// <param name="leaseDuration"></param>
/// <returns></returns>
public List <View> ParseBlob(
List <CloudBlockBlob> blobs,
Action <ReplicaInfo> SetConnectionString,
out List <ReplicatedTableConfiguredTable> tableConfigList,
out int leaseDuration,
out Guid configId)
{
tableConfigList = null;
leaseDuration = 0;
configId = Guid.Empty;
ReplicatedTableConfiguration configuration;
List <string> eTags;
ReplicatedTableQuorumReadResult result = CloudBlobHelpers.TryReadBlobQuorum(
blobs,
out configuration,
out eTags,
ReplicatedTableConfiguration.FromJson);
if (result.Code != ReplicatedTableQuorumReadCode.Success)
{
ReplicatedTableLogger.LogError("Unable to refresh views, \n{0}", result.ToString());
return(null);
}
/**
* Views:
*/
var viewList = new List <View>();
foreach (var entry in configuration.viewMap)
{
ReplicatedTableConfigurationStore configurationStore = entry.Value;
var view = View.InitFromConfigVer2(entry.Key, configurationStore, SetConnectionString);
view.RefreshTime = DateTime.UtcNow;
if (view.ViewId <= 0)
{
ReplicatedTableLogger.LogError("ViewId={0} of ViewName={1} is invalid. Must be >= 1.", view.ViewId, view.Name);
continue;
}
if (view.IsEmpty)
{
ReplicatedTableLogger.LogError("ViewName={0} is empty, skipping ...", view.Name);
continue;
}
// - ERROR!
if (view.ReadHeadIndex > view.TailIndex)
{
ReplicatedTableLogger.LogError("ReadHeadIndex={0} of ViewName={1} is out of range. Must be <= {2}", view.ReadHeadIndex, view.Name, view.TailIndex);
continue;
}
viewList.Add(view);
}
if (!viewList.Any())
{
ReplicatedTableLogger.LogError("Config has no active Views !");
return(null);
}
/**
* Tables:
*/
tableConfigList = configuration.tableList.ToList();
// - lease duration
leaseDuration = configuration.LeaseDuration;
// - ConfigId
configId = configuration.GetConfigId();
return(viewList);
}
/// <summary>
/// Parses the RTable configuration blobs.
/// Returns the list of views, the list of configured tables and the lease duration.
/// If null is returned, then the value of tableConfigList/leaseDuration are not relevant.
/// </summary>
/// <param name="blobs"></param>
/// <param name="useHttps"></param>
/// <param name="tableConfigList"></param>
/// <param name="leaseDuration"></param>
/// <returns></returns>
public List <View> ParseBlob(
List <CloudBlockBlob> blobs,
Action <ReplicaInfo> SetConnectionString,
out List <ReplicatedTableConfiguredTable> tableConfigList,
out int leaseDuration,
out Guid configId)
{
tableConfigList = null;
leaseDuration = 0;
configId = Guid.Empty;
ReplicatedTableConfigurationStore configurationStore;
List <string> eTags;
ReplicatedTableQuorumReadResult result = CloudBlobHelpers.TryReadBlobQuorum(
blobs,
out configurationStore,
out eTags,
JsonStore <ReplicatedTableConfigurationStore> .Deserialize);
if (result.Code != ReplicatedTableQuorumReadCode.Success)
{
ReplicatedTableLogger.LogError("Unable to refresh view, \n{0}", result.ToString());
return(null);
}
/**
* View:
*/
var view = View.InitFromConfigVer1(DefaultViewName, configurationStore, SetConnectionString);
view.RefreshTime = DateTime.UtcNow;
if (view.ViewId <= 0)
{
ReplicatedTableLogger.LogError("ViewId={0} is invalid. Must be >= 1.", view.ViewId);
return(null);
}
if (view.IsEmpty)
{
ReplicatedTableLogger.LogError("ViewName={0} is empty, skipping ...", view.Name);
return(null);
}
/**
* Tables:
*/
tableConfigList = new List <ReplicatedTableConfiguredTable>
{
new ReplicatedTableConfiguredTable
{
TableName = AllTables,
ViewName = DefaultViewName,
ConvertToRTable = configurationStore.ConvertXStoreTableMode,
}
};
// - lease duration
leaseDuration = configurationStore.LeaseDuration;
return(new List <View> {
view
});
}