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ErrorOrNoticeMessage.cs
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executable file
·171 lines (165 loc) · 6.94 KB
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#region License
// The PostgreSQL License
//
// Copyright (C) 2015 The Npgsql Development Team
//
// Permission to use, copy, modify, and distribute this software and its
// documentation for any purpose, without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph and the following two paragraphs appear in all copies.
//
// IN NO EVENT SHALL THE NPGSQL DEVELOPMENT TEAM BE LIABLE TO ANY PARTY
// FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
// INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
// DOCUMENTATION, EVEN IF THE NPGSQL DEVELOPMENT TEAM HAS BEEN ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.
//
// THE NPGSQL DEVELOPMENT TEAM SPECIFICALLY DISCLAIMS ANY WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
// ON AN "AS IS" BASIS, AND THE NPGSQL DEVELOPMENT TEAM HAS NO OBLIGATIONS
// TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
#endregion
using System;
using System.Diagnostics.Contracts;
using Npgsql.Logging;
#if !DNXCORE50
using System.Runtime.Serialization;
#endif
namespace Npgsql.BackendMessages
{
#if !DNXCORE50
[Serializable]
#endif
class ErrorOrNoticeMessage
{
static readonly NpgsqlLogger Log = NpgsqlLogManager.GetCurrentClassLogger();
internal string Severity { get; private set; }
internal string Code { get; private set; }
internal string Message { get; private set; }
internal string Detail { get; private set; }
internal string Hint { get; private set; }
internal int Position { get; private set; }
internal int InternalPosition { get; private set; }
internal string InternalQuery { get; private set; }
internal string Where { get; private set; }
internal string SchemaName { get; private set; }
internal string TableName { get; private set; }
internal string ColumnName { get; private set; }
internal string DataTypeName { get; private set; }
internal string ConstraintName { get; private set; }
internal string File { get; private set; }
internal string Line { get; private set; }
internal string Routine { get; private set; }
// ReSharper disable once FunctionComplexityOverflow
internal ErrorOrNoticeMessage(NpgsqlBuffer buf)
{
while (true)
{
var code = (ErrorFieldTypeCode)buf.ReadByte();
switch (code) {
case ErrorFieldTypeCode.Done:
// Null terminator; error message fully consumed.
return;
case ErrorFieldTypeCode.Severity:
Severity = buf.ReadNullTerminatedString(PGUtil.RelaxedUTF8Encoding);
break;
case ErrorFieldTypeCode.Code:
Code = buf.ReadNullTerminatedString();
break;
case ErrorFieldTypeCode.Message:
Message = buf.ReadNullTerminatedString(PGUtil.RelaxedUTF8Encoding);
break;
case ErrorFieldTypeCode.Detail:
Detail = buf.ReadNullTerminatedString(PGUtil.RelaxedUTF8Encoding);
break;
case ErrorFieldTypeCode.Hint:
Hint = buf.ReadNullTerminatedString(PGUtil.RelaxedUTF8Encoding);
break;
case ErrorFieldTypeCode.Position:
var positionStr = buf.ReadNullTerminatedString();
int position;
if (!int.TryParse(positionStr, out position)) {
Log.Warn("Non-numeric position in ErrorResponse: " + positionStr);
continue;
}
Position = position;
break;
case ErrorFieldTypeCode.InternalPosition:
var internalPositionStr = buf.ReadNullTerminatedString();
int internalPosition;
if (!Int32.TryParse(internalPositionStr, out internalPosition)) {
Log.Warn("Non-numeric position in ErrorResponse: " + internalPositionStr);
continue;
}
InternalPosition = internalPosition;
break;
case ErrorFieldTypeCode.InternalQuery:
InternalQuery = buf.ReadNullTerminatedString();
break;
case ErrorFieldTypeCode.Where:
Where = buf.ReadNullTerminatedString();
break;
case ErrorFieldTypeCode.File:
File = buf.ReadNullTerminatedString(PGUtil.RelaxedUTF8Encoding);
break;
case ErrorFieldTypeCode.Line:
Line = buf.ReadNullTerminatedString();
break;
case ErrorFieldTypeCode.Routine:
Routine = buf.ReadNullTerminatedString();
break;
case ErrorFieldTypeCode.SchemaName:
SchemaName = buf.ReadNullTerminatedString();
break;
case ErrorFieldTypeCode.TableName:
TableName = buf.ReadNullTerminatedString();
break;
case ErrorFieldTypeCode.ColumnName:
ColumnName = buf.ReadNullTerminatedString();
break;
case ErrorFieldTypeCode.DataTypeName:
DataTypeName = buf.ReadNullTerminatedString();
break;
case ErrorFieldTypeCode.ConstraintName:
ConstraintName = buf.ReadNullTerminatedString();
break;
default:
// Unknown error field; consume and discard.
buf.ReadNullTerminatedString();
break;
}
}
}
[ContractInvariantMethod]
void ObjectInvariants()
{
Contract.Invariant(Code != null);
Contract.Invariant(Message != null);
}
/// <summary>
/// Error and notice message field codes
/// </summary>
enum ErrorFieldTypeCode : byte
{
Done = 0,
Severity = (byte)'S',
Code = (byte)'C',
Message = (byte)'M',
Detail = (byte)'D',
Hint = (byte)'H',
Position = (byte)'P',
InternalPosition = (byte)'p',
InternalQuery = (byte)'q',
Where = (byte)'W',
SchemaName = (byte)'s',
TableName = (byte)'t',
ColumnName = (byte)'c',
DataTypeName = (byte)'d',
ConstraintName = (byte)'n',
File = (byte)'F',
Line = (byte)'L',
Routine = (byte)'R'
}
}
}