public static void GeneratorCreate(SqlString code, SqlInt64 seed, SqlInt32 offset)
{
CheckSystemLock();
if (code.IsNull)
{
throw new ArgumentException("code");
}
if (seed.IsNull)
{
throw new ArgumentException("seed");
}
if (offset.IsNull)
{
throw new ArgumentException("offset");
}
var filename = Path.Combine(GeneratorsDirectory, code.Value + ".xml");
if (File.Exists(filename))
{
throw new Exception("generator with given code already existed");
}
using (var f = new FileLock(filename)) {
f.WriteFile(DefineGeneratorXml(seed.Value, offset.Value).ToString());
}
SqlContext.Pipe.Send("generator created sucessfully");
}
public static SqlInt64 GeneratorNext(SqlString code)
{
if (code.IsNull)
{
throw new ArgumentException("code");
}
CheckSystemLock();
var filename = Path.Combine(GeneratorsDirectory, code.Value + ".xml");
if (!File.Exists(filename))
{
throw new Exception("generator not existed");
}
long result = 0;
using (var f = new FileLock(filename)) {
var x = XElement.Parse(f.ReadFile());
var value = Convert.ToInt64(x.Attr("value"));
var offset = Convert.ToInt32(x.Attr("offset"));
result = value + offset;
x.SetAttributeValue("value", result);
f.WriteFile(x.ToString());
}
return(result);
}
public static void GeneratorCreate(SqlString code, SqlInt64 seed, SqlInt32 offset) {
CheckSystemLock();
if (code.IsNull) {
throw new ArgumentException("code");
}
if (seed.IsNull) {
throw new ArgumentException("seed");
}
if (offset.IsNull) {
throw new ArgumentException("offset");
}
var filename = Path.Combine(GeneratorsDirectory, code.Value + ".xml");
if (File.Exists(filename)) {
throw new IOException("generator with given code already existed");
}
using (var f = new FileLock(filename)) {
f.WriteFile(DefineGeneratorXml(seed.Value, offset.Value).ToString());
}
SqlContext.Pipe.Send("generator created sucessfully");
}
public static SqlInt64 GeneratorNext(SqlString code) {
if (code.IsNull) {
throw new ArgumentException("code");
}
CheckSystemLock();
var filename = Path.Combine(GeneratorsDirectory, code.Value + ".xml");
if (!File.Exists(filename)) {
throw new IOException("generator not existed");
}
long result = 0;
using (var f = new FileLock(filename)) {
var x = XElement.Parse(f.ReadFile());
var value = Convert.ToInt64(x.Attr("value"));
var offset = Convert.ToInt32(x.Attr("offset"));
result = value + offset;
x.SetAttributeValue("value", result);
f.WriteFile(x.ToString());
}
return result;
}
