public void RemoveShard(string name)
{
lock (ShardInfo)
{
ShardInfo.Remove(name);
}
}
public void AddShard(ShardInfo shard)
{
lock (ShardInfo)
{
ShardInfo.Add(shard.Name, shard);
}
}
public void AddShard(string name, ShardInfo server)
{
lock (ShardInfo)
{
ShardInfo.Add(name, server);
}
}
public void MarkShardForGracefullRemoval(string shard)
{
ShardInfo shardInfo = GetShard(shard);
if (shardInfo != null)
{
shardInfo.GracefullRemovalInProcess = true;
}
}
public bool IsShardUnderRemoval(string shard)
{
ShardInfo shardInfo = GetShard(shard);
if (shardInfo != null)
{
return(shardInfo.GracefullRemovalInProcess);
}
return(false);
}
public ShardInfo GetShard(string name)
{
lock (ShardInfo)
{
if (ShardInfo.ContainsKey(name))
{
return(ShardInfo[name]);
}
return(null);
}
}
public object Clone()
{
ClusterInfo clusterInfo = new ClusterInfo();
clusterInfo.Name = Name;
clusterInfo._shards = ShardInfo != null?ShardInfo.Clone <string, ShardInfo>() : null;
clusterInfo._databases = Databases != null?Databases.Clone <string, DatabaseInfo>() : null;
clusterInfo.UID = UID;
return(clusterInfo);
}
private ChangeType CheckForClusterInfoConfigChange(ClusterInfo oldInfo, ClusterInfo latestInfo)
{
//Check for Deployment[cluster] change
//For Phase I we will only check for if there is any membership change in remote shards info
if (latestInfo.ShardInfo != null)
{
foreach (ShardInfo latestShard in latestInfo.ShardInfo.Values)
{
if (latestShard.Name.Equals(context.LocalShardName, StringComparison.OrdinalIgnoreCase))
{
continue;
}
ShardInfo oldShard = null;
foreach (ShardInfo shard in clusterInfo.ShardInfo.Values)
{
if (shard.Name.Equals(latestShard.Name, StringComparison.OrdinalIgnoreCase))
{
oldShard = shard;
break;
}
}
if (oldShard != null)
{
if (oldShard.Primary == null && latestShard.Primary == null)
{
continue;
}
if ((oldShard.Primary == null && latestShard.Primary != null) || (oldShard.Primary != null && latestShard.Primary == null) || (!oldShard.Primary.Equals(latestShard.Primary)))
{
//if (affectedShards == null)
// affectedShards = new List<ShardInfo>();
//if (!affectedShards.Contains(latestShard))
// affectedShards.Add(latestShard);
affectedShard = latestShard;
return(ChangeType.MembershipChanged);
}
}
}
}
//Check for DDL[database] change
return(ChangeType.None);
}
public bool ContainsShard(string name)
{
return(ShardInfo.ContainsKey(name));
}