public override void SelectFromProxyHandler(SelectMessageReader request)
{
List <List <long> > cellIds = request.cellIds;
//利用发送来的信息构造condition
Table table = new Table(request.columnNameList, request.columnTypeList);
Condition con = new Condition(table, request.condition);
List <List <long> > result = new List <List <long> >();
List <Thread> threads = new List <Thread>();
foreach (List <long> cellId in cellIds)
{
if (Global.CloudStorage.GetServerIdByCellId(cellId[0]) == Global.MyServerId) //这一行第一列存储于本服务器
{
//每行开一个线程处理
RowMessage rm = new RowMessage();
rm.cellId = cellId;
rm.con = con;
rm.types = request.columnTypeList;
rm.usedIndex = request.usedIndex;
rm.result = result;
Thread thread = new Thread(new ParameterizedThreadStart(filter));
threads.Add(thread);
thread.Start(rm);
}
}
foreach (Thread thr in threads)
{
thr.Join();
}
//此时已经处理完结果
Global.CloudStorage.SelectFromServerToDatabaseProxy(0,
new SelectResultResponseWriter(Global.MyServerId, result));
}
Dictionary <int, List <List <long> > > idDict = new Dictionary <int, List <List <long> > >(); //收集cellid消息
#region 邹开发 select
public override void SelectFromClientHandler(SelectMessageReader request, SelectResponseWriter response)
{
idDict.Clear();
for (int i = 0; i < Global.ServerCount; i++)
{
//每个服务器挨个发送
SelectMessageWriter smw = new SelectMessageWriter(request.columnNameList,
request.columnTypeList, request.cellIds, request.usedIndex, request.condition);
Global.CloudStorage.SelectFromProxyToDatabaseServer(i, smw);
}
sem.WaitOne(); //等待服务器全部返回信息
response.cellIds = new List <List <long> >();
//将信息合并
for (int i = 0; i < Global.ServerCount; i++)
{
response.cellIds.AddRange(idDict[i]);
}
}
