public void ClassArray()
{
FieldCloneClassArrayModel model = new FieldCloneClassArrayModel
{
Models = new FieldCloneNormalModel[10]
};
for (int i = 0; i < 10; i++)
{
model.Models[i] = new FieldCloneNormalModel()
{
Age = i, Name = i.ToString()
};
}
SnapshotOperator.MakeSnapshot(model);
for (int i = 5; i < 10; i++)
{
model.Models[i] = new FieldCloneNormalModel()
{
Age = i + 100, Name = (i + 100).ToString()
};
}
var reuslt = SnapshotOperator.Compare(model);
var value = (HashSet <FieldCloneNormalModel>)reuslt["Models"].Value;
int temp = 5;
foreach (var item in value)
{
Assert.Equal(temp.ToString(), item.Name);
Assert.Equal(temp, item.Age);
temp++;
}
}
public void PropSubClassArray()
{
PropCloneSubNodeModel model = new PropCloneSubNodeModel
{
Node = new PropCloneNormalModel()
{
Age = 1, Name = "111"
}
};
SnapshotOperator.MakeSnapshot(model);
model.Node = new PropCloneNormalModel()
{
Age = 2, Name = "222"
};
var result = SnapshotOperator.Compare(model);
var value = (Dictionary <string, DiffModel>)(result["Node"].Value);
Assert.NotEqual(model.Node.Name, (string)(value["Name"].Value));
Assert.NotEqual(model.Node.Age, (int)(value["Age"].Value));
Assert.Equal("111", (string)(value["Name"].Value));
Assert.Equal(1, (int)(value["Age"].Value));
}
public void NotClassArray()
{
FieldCloneArrayModel model = new FieldCloneArrayModel
{
Name = new string[10]
};
for (int i = 0; i < 10; i++)
{
model.Name[i] = i.ToString();
}
SnapshotOperator.MakeSnapshot(model);
for (int i = 5; i < 10; i++)
{
model.Name[i] = (i + 100).ToString();
}
var reuslt = SnapshotOperator.Compare(model);
var value = (HashSet <string>)reuslt["Name"].Value;
int temp = 5;
foreach (var item in value)
{
Assert.Equal(temp.ToString(), item);
temp++;
}
}
public void Normal()
{
FieldCloneNormalModel model = new FieldCloneNormalModel
{
Age = 1000,
Name = "ababab",
Timer = DateTime.Now,
money = 100000,
Flag = CloneEnum.A,
Title = false,
Id = 100000
};
SnapshotOperator.MakeSnapshot(model);
model.Age = 1001;
model.Name = "hahaha";
model.Flag = CloneEnum.B;
model.Title = true;
var reuslt = SnapshotOperator.Compare(model);
Assert.NotEqual(model.Age, (int)(reuslt["Age"].Value));
Assert.NotEqual(model.Title, (bool)(reuslt["Title"].Value));
Assert.NotEqual(model.Name, (string)(reuslt["Name"].Value));
Assert.NotEqual(model.Flag, (CloneEnum)(reuslt["Flag"].Value));
Assert.Equal(1000, (int)(reuslt["Age"].Value));
Assert.False((bool)(reuslt["Title"].Value));
Assert.Equal("ababab", (string)(reuslt["Name"].Value));
Assert.Equal(CloneEnum.A, (CloneEnum)(reuslt["Flag"].Value));
}
public void PropClassCollectionTest()
{
PropCloneClassCollectionModel model = new PropCloneClassCollectionModel();
model.Nodes = new List <PropCloneNormalModel>();
for (int i = 0; i < 10; i++)
{
model.Nodes.Add(new PropCloneNormalModel()
{
Age = i, Name = i.ToString()
});
}
SnapshotOperator.MakeSnapshot(model);
for (int i = 5; i < 10; i++)
{
model.Nodes.Add(new PropCloneNormalModel()
{
Age = i + 100, Name = (i + 100).ToString()
});
}
var reuslt = SnapshotOperator.Compare(model);
var value = (HashSet <PropCloneNormalModel>)reuslt["Nodes"].Value;
int temp = 5;
foreach (var item in value)
{
Assert.Equal(temp.ToString(), item.Name);
Assert.Equal(temp, item.Age);
temp++;
}
}
public void PropNormal()
{
var tempDate = DateTime.Now;
PropCloneNormalModel model = new PropCloneNormalModel();
model.Age = 1000;
model.Name = "ababab";
model.Timer = tempDate;
model.money = 100000;
model.Title = false;
model.Id = 100000;
//生成快照
SnapshotOperator.MakeSnapshot(model);
//更改model
model.Age = 1001;
model.Name = "hahaha";
model.Timer = DateTime.Now;
model.Title = true;
//对比快照
var reuslt = SnapshotOperator.Compare(model);
Assert.NotEqual(model.Age, (int)(reuslt["Age"].Value));
Assert.NotEqual(model.Title, (bool)(reuslt["Title"].Value));
Assert.NotEqual(model.Name, (string)(reuslt["Name"].Value));
Assert.NotEqual(model.Timer, (DateTime)(reuslt["Timer"].Value));
Assert.Equal(1000, (int)(reuslt["Age"].Value));
Assert.False((bool)(reuslt["Title"].Value));
Assert.Equal("ababab", (string)(reuslt["Name"].Value));
Assert.Equal(tempDate, (DateTime)(reuslt["Timer"].Value));
}
public static void MakeSnapshot <T>(T needSnapshot)
{
SnapshotOperator <T> .MakeSnapshot(needSnapshot);
}
public static Dictionary <string, DiffModel> Compare <T>(T instance)
{
return(SnapshotOperator <T> .Compare(instance));
}
public static bool IsDiffernt <T>(T instance)
{
return(SnapshotOperator <T> .Compare(instance).Count != 0);
}
public static Dictionary <string, DiffModel> Diff <T>(T newInstance, T oldInstance)
{
return(SnapshotOperator <T> .Diff(newInstance, oldInstance));
}
private async Task SendSnapshot(
IRaftServer proxy,
AsyncPolicy policy,
Peer peer,
long nextIndex,
long matchIndex)
{
var logOffset = LogPersister.LogOffset;
var term = State.CurrentTerm;
Snapshot ss;
if (!SnapshotOperator.TryGetLastSnapshot(out ss))
{
throw new InvalidProgramException($"WE DO NOT HAVE A SNAPSHOT for client {peer.Address} whose nextIndex is {nextIndex} yet our LogOffset is {logOffset}");
}
if (ss.LastIncludedIndex + 1 < nextIndex)
{
throw new InvalidProgramException($"WE DO NOT HAVE A <<PROPER>> SNAPSHOT for client {peer.Address} whose nextIndex is {nextIndex} yet our LogOffset is {logOffset}. Snapshot was have ({ss.FullName}) is short {ss.LastIncludedIndex}");
}
// make a copy since it might be cleaned up or opened by another thread for another client
var fileName = Path.GetTempFileName();
File.Copy(ss.FullName, fileName, true);
TheTrace.TraceInformation($"[{_meAsAPeer.ShortName}] About to send Snapshot copy file {fileName} to [{peer.ShortName}] and copy of {ss.FullName}.");
using (var fs = new FileStream(fileName, FileMode.Open))
{
var start = 0;
var total = 0;
var length = fs.Length;
var buffer = new byte[_settings.MaxSnapshotChunkSentInBytes];
TheTrace.TraceInformation($"[{_meAsAPeer.ShortName}] Snapshot copy file size is {length}. Location is {fileName} and copy of {ss.FullName}.");
while (total < length)
{
var count = fs.Read(buffer, 0, buffer.Length);
total += count;
var result = await proxy.InstallSnapshotAsync(new InstallSnapshotRequest()
{
CurrentTerm = term,
Data = count == buffer.Length ? buffer : buffer.Take(count).ToArray(),
LastIncludedIndex = ss.LastIncludedIndex,
LastIncludedTerm = term,
IsDone = total == length,
LeaderId = State.Id,
Offset = start
});
TheTrace.TraceInformation($"[{_meAsAPeer.ShortName}] Sent snapshot for peer {peer.Address} with {count} bytes totalling {total}.");
start += count;
if (result.CurrentTerm != term)
{
TheTrace.TraceWarning($"[{_meAsAPeer.ShortName}] I am sending snapshot but this peer {peer.Address} has term {result.CurrentTerm} vs my started term {term} and current term {State.CurrentTerm}.");
}
}
}
_volatileLeaderState.SetMatchIndex(peer.Id, ss.LastIncludedIndex);
_volatileLeaderState.SetNextIndex(peer.Id, ss.LastIncludedIndex + 1); // the rest will be done by sending logs
File.Delete(fileName);
}
public static void MakeSnapshot <T>(this T instance)
{
SnapshotOperator.MakeSnapshot(instance);
}