public IDataInput Let <D>(out D v, int proj = 0x00ff) where D : IData, new()
{
try
{
int ord = ordinal++;
if (!reader.IsDBNull(ord))
{
string str = reader.GetString(ord);
JsonParse p = new JsonParse(str);
JObj jo = (JObj)p.Parse();
v = new D();
v.Read(jo, proj);
// add shard if any
IShardable sharded = v as IShardable;
if (sharded != null)
{
sharded.Shard = service.Shard;
}
return(this);
}
}
catch
{
}
v = default(D);
return(this);
}
public bool Get <D>(string name, ref D[] v, int proj = 0x00ff) where D : IData, new()
{
try
{
int ord = reader.GetOrdinal(name);
if (!reader.IsDBNull(ord))
{
string str = reader.GetString(ord);
JsonParse parse = new JsonParse(str);
JArr ja = (JArr)parse.Parse();
int len = ja.Count;
v = new D[len];
for (int i = 0; i < len; i++)
{
JObj jo = ja[i];
D obj = new D();
obj.Read(jo, proj);
// add shard if any
IShardable sharded = obj as IShardable;
if (sharded != null)
{
sharded.Shard = service.Shard;
}
v[i] = obj;
}
return(true);
}
}
catch
{
}
return(false);
}
public bool Get <D>(string name, ref D v, int proj = 0x00ff) where D : IData, new()
{
try
{
int ord = reader.GetOrdinal(name);
if (!reader.IsDBNull(ord))
{
string str = reader.GetString(ord);
JsonParse p = new JsonParse(str);
JObj jo = (JObj)p.Parse();
v = new D();
v.Read(jo, proj);
// add shard if any
IShardable sharded = v as IShardable;
if (sharded != null)
{
sharded.Shard = service.Shard;
}
return(true);
}
}
catch
{
}
return(false);
}
public bool Get(string name, ref JArr v)
{
try
{
int ord = reader.GetOrdinal(name);
if (!reader.IsDBNull(ord))
{
string str = reader.GetString(ord);
JsonParse parse = new JsonParse(str);
v = (JArr)parse.Parse();
return(true);
}
}
catch
{
}
return(false);
}
public static bool TryCreate <S>(ServiceContext sc, bool load, object attachment = null) where S : Service
{
// initialize work context
sc.Attach = attachment;
sc.Parent = null;
sc.Level = 0;
sc.Directory = sc.Name;
if (load) // need to load configuration file
{
string file = sc.GetFilePath(CONFIG_FILE);
if (File.Exists(file))
{
byte[] bytes = File.ReadAllBytes(file);
JsonParse p = new JsonParse(bytes, bytes.Length);
JObj jo = (JObj)p.Parse();
// this will override values
sc.Read(jo, 0xffff);
}
else
{
return(false);
}
}
// create instance by reflection
Type typ = typeof(S);
ConstructorInfo ci = typ.GetConstructor(new[] { typeof(ServiceContext) });
if (ci == null)
{
throw new ServiceException(typ + " missing ServiceContext");
}
S service = (S)ci.Invoke(new object[] { sc });
Services.Add(service);
return(true);
}