protected internal IMessage DecodeLine(ChannelBuffer buf, ITransaction parent,
Stack<ITransaction> stack, IMessageTree tree)
{
BufferHelper helper = _mBufferHelper;
byte identifier = buf.ReadByte();
String timestamp = helper.Read(buf, TAB);
String type = helper.Read(buf, TAB);
String name = helper.Read(buf, TAB);
if (identifier == 'E')
{
IMessage evt = new DefaultEvent(type, name);
String status = helper.Read(buf, TAB);
String data = helper.ReadRaw(buf, TAB);
helper.Read(buf, LF); // get rid of line feed
evt.Timestamp = _mDateHelper.Parse(timestamp);
evt.Status = status;
evt.AddData(data);
if (parent != null)
{
parent.AddChild(evt);
tree.EstimatedByteSize += evt.EstimateByteSize();
return parent;
}
return evt;
}
if (identifier == 'M')
{
DefaultMetric metric = new DefaultMetric(type, name);
String status = helper.Read(buf, TAB);
String data = helper.ReadRaw(buf, TAB);
helper.Read(buf, LF); // get rid of line feed
metric.Timestamp = _mDateHelper.Parse(timestamp);
metric.Status = status;
metric.AddData(data);
if (parent != null)
{
parent.AddChild(metric);
tree.EstimatedByteSize += metric.EstimateByteSize();
return parent;
}
return metric;
}
if (identifier == 'H')
{
IMessage heartbeat = new DefaultHeartbeat(type, name);
String status0 = helper.Read(buf, TAB);
String data1 = helper.ReadRaw(buf, TAB);
helper.Read(buf, LF); // get rid of line feed
heartbeat.Timestamp = _mDateHelper.Parse(timestamp);
heartbeat.Status = status0;
heartbeat.AddData(data1);
if (parent != null)
{
parent.AddChild(heartbeat);
tree.EstimatedByteSize += heartbeat.EstimateByteSize();
return parent;
}
return heartbeat;
}
if (identifier == 't')
{
IMessage transaction = new DefaultTransaction(type, name,
null);
helper.Read(buf, LF); // get rid of line feed
transaction.Timestamp = _mDateHelper.Parse(timestamp);
if (parent != null)
{
parent.AddChild(transaction);
}
stack.Push(parent);
return transaction;
}
if (identifier == 'A')
{
ITransaction transaction2 = new DefaultTransaction(type, name, null);
String status3 = helper.Read(buf, TAB);
String duration = helper.Read(buf, TAB);
String data4 = helper.ReadRaw(buf, TAB);
helper.Read(buf, LF); // get rid of line feed
transaction2.Timestamp = _mDateHelper.Parse(timestamp);
transaction2.Status = status3;
transaction2.AddData(data4);
long d = Int64.Parse(duration.Substring(0, duration.Length - 2), NumberStyles.Integer);
transaction2.DurationInMicros = d;
if (parent != null)
{
parent.AddChild(transaction2);
tree.EstimatedByteSize += transaction2.EstimateByteSize();
return parent;
}
return transaction2;
}
if (identifier == 'T')
{
String status5 = helper.Read(buf, TAB);
String duration6 = helper.Read(buf, TAB);
String data7 = helper.ReadRaw(buf, TAB);
helper.Read(buf, LF); // get rid of line feed
parent.Status = status5;
parent.AddData(data7);
long d8 = Int64.Parse(
duration6.Substring(0, duration6.Length - 2),
NumberStyles.Integer);
parent.DurationInMicros = d8;
tree.EstimatedByteSize += parent.EstimateByteSize();
return stack.Pop();
}
Logger.Error("Unknown identifier(" + identifier + ") of message: " + buf);
// unknown message, ignore it
return parent;
}
private IMessageTree MergeTree(BlockingThreadSafeQueue<IMessageTree> trees)
{
int max = MAX_ATOMIC_MESSAGES - 1;
DefaultTransaction tran = new DefaultTransaction("_CatMergeTree", "_CatMergeTree", null);
tran.Status = CatConstants.SUCCESS;
tran.SetCompleted(true);
IMessageTree first;
trees.TryPeek(out first, false);
// Usually this should not happen, because it is in the same thread with ShouldMerge()
if (first == null)
{
return null;
}
// Set merge tree start time to the first massage's timestamp
tran.Timestamp = first.Message.Timestamp;
long lastTimestamp = 0;
long lastDuration = 0;
int estimatedByteSize = 0;
while (max >= 0) {
IMessageTree tree;
trees.TryDequeue(out tree, false);
if (tree != null)
{
tran.AddChild(tree.Message);
estimatedByteSize += tree.EstimatedByteSize;
if (first!=tree)
{
_messageIdFactory.Reuse(tree.MessageId);
}
lastTimestamp = tree.Message.Timestamp;
if (tree.Message is DefaultTransaction)
{
lastDuration = ((DefaultTransaction)tree.Message).DurationInMillis;
}
else
{
lastDuration = 0;
}
}
if (tree == null || max == 0) {
// Set merge tree end time to the last massage's end time
tran.DurationInMillis = (lastTimestamp - tran.Timestamp + lastDuration);
break;
}
max--;
}
((DefaultMessageTree) first).Message = tran;
estimatedByteSize += tran.EstimateByteSize();
first.EstimatedByteSize = estimatedByteSize;
return first;
}
public void TruncateAndFlush(Context ctx, long timestamp)
{
IMessageTree tree = ctx.Tree;
Stack<ITransaction> stack = ctx.Stack;
IMessage message = tree.Message;
if (message is DefaultTransaction)
{
string id = tree.MessageId;
string rootId = tree.RootMessageId;
string childId = _mManager.NextMessageId();
DefaultTransaction source = (DefaultTransaction)message;
DefaultTransaction target = new DefaultTransaction(source.Type, source.Name, _mManager);
target.Timestamp = source.Timestamp;
target.DurationInMicros = source.DurationInMicros;
target.AddData(source.Data);
target.Status = CatConstants.SUCCESS;
MigrateMessage(stack, source, target, 1);
int reducedByteSize = 0;
foreach (ITransaction transaction in stack)
{
DefaultTransaction tran = (DefaultTransaction)transaction;
tran.Timestamp = timestamp;
reducedByteSize += transaction.EstimateByteSize();
}
DefaultEvent next = new DefaultEvent("RemoteCall", "Next");
next.AddData(childId);
next.Status = CatConstants.SUCCESS;
target.AddChild(next);
IMessageTree t = tree.Copy();
t.Message = target;
ctx.Tree.MessageId = childId;
ctx.Tree.ParentMessageId = id;
ctx.Tree.RootMessageId = (rootId != null ? rootId : id);
ctx._mLength = stack.Count;
// Update estimated byte size of the truncated tree to be the total size of all on-stack transactions.
ctx.Tree.EstimatedByteSize = reducedByteSize;
ctx._mTotalDurationInMicros = ctx._mTotalDurationInMicros + target.DurationInMicros;
_mManager.Flush(t);
}
}
private void MigrateMessage(Stack<ITransaction> stack, ITransaction source, ITransaction target, int level)
{
// Note that stack.ToArray() gives an array reversed, which is the opposite of Java.
ITransaction[] onStackTransactions = stack.ToArray();
ITransaction current = (level < stack.Count ? onStackTransactions[stack.Count - 1 - level] : null);
bool shouldKeep = false;
foreach (IMessage child in source.Children)
{
if (child != current)
{
target.AddChild(child);
}
else
{
DefaultTransaction cloned = new DefaultTransaction(current.Type, current.Name, _mManager);
cloned.Timestamp = current.Timestamp;
cloned.DurationInMicros = current.DurationInMicros;
cloned.AddData(current.Data);
cloned.Status = CatConstants.SUCCESS;
target.AddChild(cloned);
MigrateMessage(stack, current, cloned, level + 1);
shouldKeep = true;
}
}
source.Children.Clear();
if (shouldKeep)
{
source.AddChild(current);
}
}
public void markAsNotCompleted(DefaultTransaction transaction)
{
DefaultEvent evt = new DefaultEvent("cat", "BadInstrument");
evt.Status = "TransactionNotCompleted";
evt.SetCompleted(true);
transaction.AddChild(evt);
transaction.SetCompleted(true);
}
public virtual ITransaction NewTransaction(String type, String name)
{
// this enable CAT client logging cat message without explicit setup
if (!_mManager.HasContext())
{
_mManager.Setup();
}
if (_mManager.CatEnabled)
{
ITransaction transaction = new DefaultTransaction(type, name, _mManager);
_mManager.Start(transaction, false);
return transaction;
}
return new NullTransaction();
}
