public async Task QueryByProceeGroup(string processGroupName, Func <SQueue, Task> callback)
{
List <SQueue> queueList = new List <SQueue>();
await DBTransactionHelper.SqlTransactionWorkAsync(DBTypes.SqlServer, true, false, _messageQueueConnectionFactory.CreateReadForMessageQueueMain(), async (conn, transaction) =>
{
Int64?sequence = null;
int pageSize = 500;
while (true)
{
queueList.Clear();
SqlTransaction sqlTran = null;
if (transaction != null)
{
sqlTran = (SqlTransaction)transaction;
}
await using (SqlCommand commond = new SqlCommand()
{
Connection = (SqlConnection)conn,
CommandType = CommandType.Text,
Transaction = sqlTran
})
{
if (!sequence.HasValue)
{
commond.CommandText = string.Format(@"select top (@pagesize) {0} from SQueue as q join SQueueProcessGroup as g on q.processgroupid=g.id where g.[name]=@processgroupname order by [sequence]", StoreHelper.GetSQueueSelectFields("q"));
}
else
{
commond.CommandText = string.Format(@"select top (@pagesize) {0} from SQueue as q join SQueueProcessGroup as g on q.processgroupid=g.id where g.[name]=@processgroupname and [q.sequence]>@sequence order by [sequence]", StoreHelper.GetSQueueSelectFields("q"));
}
var parameter = new SqlParameter("@processgroupname", SqlDbType.VarChar, 150)
{
Value = processGroupName
};
commond.Parameters.Add(parameter);
parameter = new SqlParameter("@pagesize", SqlDbType.Int)
{
Value = pageSize
};
commond.Parameters.Add(parameter);
if (sequence.HasValue)
{
parameter = new SqlParameter("@sequence", SqlDbType.BigInt)
{
Value = sequence
};
commond.Parameters.Add(parameter);
}
await commond.PrepareAsync();
SqlDataReader reader = null;
await using (reader = await commond.ExecuteReaderAsync())
{
while (await reader.ReadAsync())
{
var queue = new SQueue();
StoreHelper.SetSQueueSelectFields(queue, reader, string.Empty);
sequence = (Int64)reader["q.sequence"];
queueList.Add(queue);
}
await reader.CloseAsync();
}
}
foreach (var queueItem in queueList)
{
await callback(queueItem);
}
if (queueList.Count != pageSize)
{
break;
}
}
});
}
public async Task <SQueue> QueryById(Guid id)
{
SQueue queue = null;
await DBTransactionHelper.SqlTransactionWorkAsync(DBTypes.SqlServer, true, false, _messageQueueConnectionFactory.CreateReadForMessageQueueMain(), async (conn, transaction) =>
{
SqlTransaction sqlTran = null;
if (transaction != null)
{
sqlTran = (SqlTransaction)transaction;
}
await using (SqlCommand commond = new SqlCommand()
{
Connection = (SqlConnection)conn,
CommandType = CommandType.Text,
Transaction = sqlTran,
CommandText = string.Format(@"select {0} from SQueue where [id]=@id", StoreHelper.GetSQueueSelectFields(string.Empty))
})
{
var parameter = new SqlParameter("@id", SqlDbType.UniqueIdentifier)
{
Value = id
};
commond.Parameters.Add(parameter);
await commond.PrepareAsync();
SqlDataReader reader = null;
await using (reader = await commond.ExecuteReaderAsync())
{
if (await reader.ReadAsync())
{
queue = new SQueue();
StoreHelper.SetSQueueSelectFields(queue, reader, string.Empty);
}
await reader.CloseAsync();
}
}
});
return(queue);
}
public async Task <QueryResult <SQueue> > QueryByProceeGroup(string processGroupName, int page, int pageSize)
{
QueryResult <SQueue> result = new QueryResult <SQueue>();
await DBTransactionHelper.SqlTransactionWorkAsync(DBTypes.SqlServer, true, false, _messageQueueConnectionFactory.CreateReadForMessageQueueMain(), async (conn, transaction) =>
{
SqlTransaction sqlTran = null;
if (transaction != null)
{
sqlTran = (SqlTransaction)transaction;
}
await using (SqlCommand commond = new SqlCommand()
{
Connection = (SqlConnection)conn,
CommandType = CommandType.Text,
Transaction = sqlTran,
CommandText = string.Format(@"set @currentpage=@page
select @count= count(*) from SQueue as q join SQueueProcessGroup as g on q.processgroupid=g.id where g.[name]=@processgroupname
if @pagesize*@page>=@count
begin
set @currentpage= @count/@pagesize
if @count%@pagesize<>0
begin
set @currentpage=@currentpage+1
end
if @currentpage=0
set @currentpage=1
end
else if @page<1
begin
set @currentpage=1
end
select {0} from SQueue as q join SQueueProcessGroup as g on q.processgroupid=g.id where g.[name]=@processgroupname
order by [sequence]
offset (@pagesize * (@currentpage - 1)) rows
fetch next @pagesize rows only;" , StoreHelper.GetSQueueSelectFields("q"))
})
{
var parameter = new SqlParameter("@page", SqlDbType.Int)
{
Value = page
};
commond.Parameters.Add(parameter);
parameter = new SqlParameter("@pagesize", SqlDbType.Int)
{
Value = pageSize
};
commond.Parameters.Add(parameter);
parameter = new SqlParameter("@processgroupname", SqlDbType.NVarChar, 100)
{
Value = processGroupName
};
commond.Parameters.Add(parameter);
parameter = new SqlParameter("@count", SqlDbType.Int)
{
Direction = ParameterDirection.Output
};
commond.Parameters.Add(parameter);
parameter = new SqlParameter("@currentpage", SqlDbType.Int)
{
Direction = ParameterDirection.Output
};
commond.Parameters.Add(parameter);
await commond.PrepareAsync();
SqlDataReader reader = null;
await using (reader = await commond.ExecuteReaderAsync())
{
while (await reader.ReadAsync())
{
var queue = new SQueue();
StoreHelper.SetSQueueSelectFields(queue, reader, string.Empty);
result.Results.Add(queue);
}
await reader.CloseAsync();
result.TotalCount = (int)commond.Parameters["@count"].Value;
result.CurrentPage = (int)commond.Parameters["@currentpage"].Value;
}
}
});
return(result);
}
public async Task <SQueue> QueryByCode(string groupName, bool isDead, int code)
{
SQueue queue = null;
await DBTransactionHelper.SqlTransactionWorkAsync(DBTypes.SqlServer, true, false, _messageQueueConnectionFactory.CreateReadForMessageQueueMain(), async (conn, transaction) =>
{
SqlTransaction sqlTran = null;
if (transaction != null)
{
sqlTran = (SqlTransaction)transaction;
}
await using (SqlCommand commond = new SqlCommand()
{
Connection = (SqlConnection)conn,
CommandType = CommandType.Text,
Transaction = sqlTran,
CommandText = string.Format(@"select {0} from SQueue where [groupname]=@groupname and [code]=@code and [isdead]=@isdead", StoreHelper.GetSQueueSelectFields(string.Empty))
})
{
var parameter = new SqlParameter("@groupname", SqlDbType.VarChar, 150)
{
Value = groupName
};
commond.Parameters.Add(parameter);
parameter = new SqlParameter("@code", SqlDbType.Int)
{
Value = code
};
commond.Parameters.Add(parameter);
parameter = new SqlParameter("@isdead", SqlDbType.Bit)
{
Value = isDead
};
commond.Parameters.Add(parameter);
await commond.PrepareAsync();
SqlDataReader reader = null;
await using (reader = await commond.ExecuteReaderAsync())
{
if (await reader.ReadAsync())
{
queue = new SQueue();
StoreHelper.SetSQueueSelectFields(queue, reader, string.Empty);
}
await reader.CloseAsync();
}
}
});
return(queue);
}
