public ResponseDecoder(TsTtbResp response)
{
using (var s = new OtpInputStream(response.Response))
{
byte tag = s.Read1();
if (tag != OtpExternal.VersionTag)
{
string msg = string.Format(
"Expected OTP input stream to start with {0}, got {1}",
OtpExternal.VersionTag,
tag);
throw new InvalidOperationException(msg);
}
tag = s.Peek();
switch (tag)
{
case OtpExternal.AtomTag:
string atom = s.ReadAtom();
decodedResponse = ParseAtomResult(atom);
break;
case OtpExternal.SmallTupleTag:
case OtpExternal.LargeTupleTag:
decodedResponse = ParseTupleResult(s);
break;
default:
throw new InvalidOperationException("Expected an atom or tuple.");
}
}
}
public ResponseDecoder(TsTtbResp response)
{
using (var s = new OtpInputStream(response.Response))
{
byte tag = s.Read1();
if (tag != OtpExternal.VersionTag)
{
string msg = string.Format(
"Expected OTP input stream to start with {0}, got {1}",
OtpExternal.VersionTag,
tag);
throw new InvalidOperationException(msg);
}
tag = s.Peek();
switch (tag)
{
case OtpExternal.AtomTag:
string atom = s.ReadAtom();
decodedResponse = ParseAtomResult(atom);
break;
case OtpExternal.SmallTupleTag:
case OtpExternal.LargeTupleTag:
decodedResponse = ParseTupleResult(s);
break;
default:
throw new InvalidOperationException("Expected an atom or tuple.");
}
}
}
public void Can_Peek(byte[] buf, bool want)
{
using (var s = new OtpInputStream(buf))
{
byte b = s.Read1();
Assert.AreEqual(OtpExternal.VersionTag, b);
b = s.Peek();
Assert.AreEqual(OtpExternal.AtomTag, b);
string atom = s.ReadAtom();
Assert.AreEqual(want.ToString().ToLowerInvariant(), atom);
}
}
private static Cell ParseCell(OtpInputStream s, int i, Column[] cols)
{
string msg;
Column col = cols[i];
byte tag = s.Peek();
switch (tag)
{
case OtpExternal.NilTag:
tag = s.Read1(); // NB: actually consume the byte
return(new Cell());
case OtpExternal.BinTag:
if (col.Type == ColumnType.Varchar || col.Type == ColumnType.Blob)
{
return(new Cell(s.ReadBinaryAsString()));
}
else
{
throw OnBadTag(tag, col, ColumnType.Varchar, ColumnType.Blob);
}
case OtpExternal.SmallIntTag:
case OtpExternal.IntTag:
case OtpExternal.SmallBigTag:
case OtpExternal.LargeBigTag:
long val = s.ReadLong();
switch (col.Type)
{
case ColumnType.SInt64:
return(new Cell(val, isUnixTimestamp: false));
case ColumnType.Timestamp:
return(new Cell(val, isUnixTimestamp: true));
default:
throw OnBadTag(tag, col, ColumnType.SInt64, ColumnType.Timestamp);
}
case OtpExternal.FloatTag:
case OtpExternal.NewFloatTag:
if (col.Type != ColumnType.Double)
{
throw OnBadTag(tag, col, ColumnType.Double);
}
return(new Cell(s.ReadDouble()));
case OtpExternal.AtomTag:
if (col.Type != ColumnType.Boolean)
{
throw OnBadTag(tag, col, ColumnType.Boolean);
}
return(new Cell(s.ReadBoolean()));
case OtpExternal.ListTag:
int arity = s.ReadNil();
if (arity == 0)
{
// null cell
return(new Cell());
}
else
{
msg = string.Format(
"Expected nil list, got one with arity {0}",
arity);
throw new InvalidOperationException(msg);
}
default:
msg = string.Format(
"Unknown cell type encountered, tag {0}, '{1}:{2}'",
tag,
col.Name,
col.Type);
throw new InvalidOperationException(msg);
}
}
private static Cell ParseCell(OtpInputStream s, int i, Column[] cols)
{
string msg;
Column col = cols[i];
byte tag = s.Peek();
switch (tag)
{
case OtpExternal.NilTag:
tag = s.Read1(); // NB: actually consume the byte
return new Cell();
case OtpExternal.BinTag:
if (col.Type == ColumnType.Varchar || col.Type == ColumnType.Blob)
{
return new Cell(s.ReadBinaryAsString());
}
else
{
throw OnBadTag(tag, col, ColumnType.Varchar, ColumnType.Blob);
}
case OtpExternal.SmallIntTag:
case OtpExternal.IntTag:
case OtpExternal.SmallBigTag:
case OtpExternal.LargeBigTag:
long val = s.ReadLong();
switch (col.Type)
{
case ColumnType.SInt64:
return new Cell(val, isUnixTimestamp: false);
case ColumnType.Timestamp:
return new Cell(val, isUnixTimestamp: true);
default:
throw OnBadTag(tag, col, ColumnType.SInt64, ColumnType.Timestamp);
}
case OtpExternal.FloatTag:
case OtpExternal.NewFloatTag:
if (col.Type != ColumnType.Double)
{
throw OnBadTag(tag, col, ColumnType.Double);
}
return new Cell(s.ReadDouble());
case OtpExternal.AtomTag:
if (col.Type != ColumnType.Boolean)
{
throw OnBadTag(tag, col, ColumnType.Boolean);
}
return new Cell(s.ReadBoolean());
case OtpExternal.ListTag:
int arity = s.ReadNil();
if (arity == 0)
{
// null cell
return new Cell();
}
else
{
msg = string.Format(
"Expected nil list, got one with arity {0}",
arity);
throw new InvalidOperationException(msg);
}
default:
msg = string.Format(
"Unknown cell type encountered, tag {0}, '{1}:{2}'",
tag,
col.Name,
col.Type);
throw new InvalidOperationException(msg);
}
}