public static async Task Execute(ConnectionManager connectionManager, string partitionId, string objectId, string value)
{
Server server = null;
try
{
server = connectionManager.ChooseServer(partitionId, "-1");
if (!server.Alive)
{
server = null;
}
}
catch (ServerBindException)
{
// nothing
}
while (true)
{
if (server == null)
{
IImmutableSet <Server> replicas = connectionManager.GetAliveServers(partitionId);
Random rnd = new Random();
server = replicas.ElementAt(rnd.Next(0, replicas.Count));
connectionManager.Attach(server);
}
Console.WriteLine($"Trying: {server.Id}");
GStoreWriteRequest writeRequest = new GStoreWriteRequest()
{
Object = new DataObject()
{
ObjectIdentifier = new DataObjectIdentifier
{
PartitionId = partitionId,
ObjectId = objectId
},
Value = value
}
};
try
{
await server.Stub.WriteAsync(writeRequest);
return;
}
catch (Grpc.Core.RpcException e) when(e.StatusCode == Grpc.Core.StatusCode.Internal)
{
connectionManager.DeclareDead(server.Id);
server = null;
}
}
}
public static async Task <GStoreObject> Execute(ConnectionManager connectionManager, string partitionId, string serverId, string objectId)
{
Server server = null;
try
{
server = connectionManager.ChooseServerForRead(partitionId, serverId);
if (!server.Alive)
{
server = null;
}
}
catch (ServerBindException)
{
// nothing
}
while (true)
{
if (server == null)
{
IImmutableSet <Server> replicas = connectionManager.GetPartitionAliveReplicas(partitionId);
Random rnd = new Random();
server = replicas.ElementAt(rnd.Next(0, replicas.Count));
}
Console.WriteLine($"Trying: {server.Id}");
GStoreReadRequest gStoreReadRequest = new GStoreReadRequest()
{
ObjectIdentifier = new DataObjectIdentifier
{
PartitionId = partitionId,
ObjectId = objectId
}
};
try
{
GStoreReadReply gStoreReadReply = await server.Stub.ReadAsync(gStoreReadRequest);
return(CreateObject(gStoreReadReply.Object));
}
catch (Grpc.Core.RpcException e) when(e.StatusCode == Grpc.Core.StatusCode.Internal)
{
await connectionManager.DeclareDead(server.Id);
server = null;
}
}
}
