/// <summary>
/// Sets an entry value in the table if it does not exist.
/// </summary>
/// <param name="name">The entry name</param>
/// <param name="value">The value to set</param>
/// <returns>False if the type does not match existing value</returns>
public static bool SetDefaultEntryBoolean(string name, bool value)
{
#if CORE
return(CoreMethods.SetDefaultEntryBoolean(name, value));
#else
return(Storage.Instance.SetDefaultEntryValue(name, Value.MakeBoolean(value)));
#endif
}
/// <summary>
/// Sets an entry value
/// </summary>
/// <remarks>If the type of the new value differs from the type currently
/// stored and the force parameter is false (default), returns error and
/// does not update value. If force is true, the value type in the
/// table is changed</remarks>
/// <param name="name">The entry name</param>
/// <param name="value">The value to set</param>
/// <param name="force">True to force an update even if types are different</param>
/// <returns>True on success, otherwise false</returns>
public static bool SetEntryBoolean(string name, bool value, bool force = false)
{
#if CORE
return(CoreMethods.SetEntryBoolean(name, value, force));
#else
if (force)
{
Storage.Instance.SetEntryTypeValue(name, Value.MakeBoolean(value));
return(true);
}
return(Storage.Instance.SetEntryValue(name, Value.MakeBoolean(value)));
#endif
}
public async Task <bool> LoadPersistentAsync(Stream stream, Action <int, string> warn)
{
int lineNum = 1;
List <StoragePair> entries = new List <StoragePair>();
List <bool> boolArray = new List <bool>();
List <double> doubleArray = new List <double>();
List <string> stringArray = new List <string>();
using (StreamReader reader = new StreamReader(stream))
{
string lineStr;
while ((lineStr = await reader.ReadLineAsync().ConfigureAwait(false)) != null)
{
string line = lineStr.Trim();
if (line != string.Empty && line[0] != ';' && line[0] != '#')
{
break;
}
}
if (lineStr != "[NetworkTables Storage 3.0]")
{
warn?.Invoke(lineNum, "header line mismatch, ignoring rest of file");
return(false);
}
while ((lineStr = await reader.ReadLineAsync().ConfigureAwait(false)) != null)
{
string line = lineStr.Trim();
++lineNum;
if (line == string.Empty || line[0] == ';' || line[0] == '#')
{
continue;
}
string[] split = line.Split(new[] { ' ' }, 2);
var typeTok = split[0];
line = split[1];
NtType type = NtType.Unassigned;
if (typeTok == "boolean")
{
type = NtType.Boolean;
}
else if (typeTok == "double")
{
type = NtType.Double;
}
else if (typeTok == "string")
{
type = NtType.String;
}
else if (typeTok == "raw")
{
type = NtType.Raw;
}
else if (typeTok == "array")
{
split = line.Split(new[] { ' ' }, 2);
var arrayTok = split[0];
line = split[1];
if (arrayTok == "boolean")
{
type = NtType.BooleanArray;
}
else if (arrayTok == "double")
{
type = NtType.DoubleArray;
}
else if (arrayTok == "string")
{
type = NtType.StringArray;
}
}
if (type == NtType.Unassigned)
{
warn?.Invoke(lineNum, "unrecognized type");
continue;
}
string nameTok;
ReadStringToken(out nameTok, out line, line);
if (string.IsNullOrEmpty(nameTok))
{
warn?.Invoke(lineNum, "unterminated name string");
continue;
}
string name;
UnescapeString(nameTok, out name);
line = line.TrimStart('\t');
if (string.IsNullOrEmpty(line) || line[0] != '=')
{
warn?.Invoke(lineNum, "expected = after name");
continue;
}
line = line.Substring(1).TrimStart(' ', '\t');
Value value = null;
string str;
switch (type)
{
case NtType.Boolean:
if (line == "true")
{
value = Value.MakeBoolean(true);
}
else if (line == "false")
{
value = Value.MakeBoolean(false);
}
else
{
warn?.Invoke(lineNum, "unrecognized boolean value, not 'true' or 'false'");
continue;
}
break;
case NtType.Double:
str = line;
double tmpDouble;
var tmpBoolean = double.TryParse(str, out tmpDouble);
if (!tmpBoolean)
{
warn?.Invoke(lineNum, "invalid double value");
continue;
}
value = Value.MakeDouble(tmpDouble);
break;
case NtType.String:
string strTok;
ReadStringToken(out strTok, out line, line);
if (string.IsNullOrEmpty(strTok))
{
warn?.Invoke(lineNum, "missing string value");
continue;
}
if (strTok[strTok.Length - 1] != '"')
{
warn?.Invoke(lineNum, "unterminated string value");
continue;
}
UnescapeString(strTok, out str);
value = Value.MakeString(str);
break;
case NtType.Raw:
value = Value.MakeRaw(Convert.FromBase64String(line));
break;
case NtType.BooleanArray:
value = ReadBooleanArray(line, lineNum, boolArray, warn);
if (value == null)
{
continue;
}
break;
case NtType.DoubleArray:
value = ReadDoubleArray(line, lineNum, doubleArray, warn);
if (value == null)
{
continue;
}
break;
case NtType.StringArray:
value = ReadStringArray(line, lineNum, stringArray, warn);
if (value == null)
{
continue;
}
break;
}
if (name.Length != 0 && value != null)
{
entries.Add(new StoragePair(name, value));
}
}
List <Message> msgs = new List <Message>();
IDisposable monitor = null;
try
{
monitor = await m_monitor.EnterAsync().ConfigureAwait(false);
foreach (var i in entries)
{
Entry entry;
if (!m_entries.TryGetValue(i.First, out entry))
{
entry = new Entry(i.First);
m_entries.Add(i.First, entry);
}
var oldValue = entry.Value;
entry.Value = i.Second;
bool wasPersist = entry.IsPersistent();
if (!wasPersist)
{
entry.Flags |= EntryFlags.Persistent;
}
if (m_server && entry.Id == 0xffff)
{
uint id = (uint)m_idMap.Count;
entry.Id = id;
m_idMap.Add(entry);
}
if (m_notifier.LocalNotifiers())
{
if (oldValue != null)
{
m_notifier.NotifyEntry(i.First, i.Second, (NotifyFlags.NotifyNew | NotifyFlags.NotifyLocal));
}
else if (oldValue != i.Second)
{
NotifyFlags notifyFlags = NotifyFlags.NotifyUpdate | NotifyFlags.NotifyLocal;
if (!wasPersist)
{
notifyFlags |= NotifyFlags.NotifyFlagsChanged;
}
m_notifier.NotifyEntry(i.First, i.Second, notifyFlags);
}
}
if (m_queueOutgoing == null)
{
continue;
}
++entry.SeqNum;
if (oldValue == null || oldValue.Type != i.Second.Type)
{
msgs.Add(Message.EntryAssign(i.First, entry.Id, entry.SeqNum.Value, i.Second, entry.Flags));
}
else if (entry.Id != 0xffff)
{
if (oldValue != i.Second)
{
msgs.Add(Message.EntryUpdate(entry.Id, entry.SeqNum.Value, i.Second));
}
if (!wasPersist)
{
msgs.Add(Message.FlagsUpdate(entry.Id, entry.Flags));
}
}
}
if (m_queueOutgoing != null)
{
var queuOutgoing = m_queueOutgoing;
IDisposable monitorToUnlock = Interlocked.Exchange(ref monitor, null);
monitorToUnlock.Dispose();
foreach (var msg in msgs)
{
queuOutgoing(msg, null, null);
}
}
}
finally
{
monitor?.Dispose();
}
}
return(true);
}
