// 内部初始化，调用WebServices类中的ApiQuery从Webapi读取数据
private static void InitDateInfo(int year, int month)
{
if (year < 1 || year > 9999 || month < 1 || month > 12)
{
throw new ArgumentOutOfRangeException(); // 参数错误
}
initProgess = 0;
//DateTime sampleDate = new DateTime(year, month, 1);
months[storedMonthCount] = new DateMonth(year, month); // 存储月份索引
int maxDayInMonth = DateTime.DaysInMonth(year, month); // 当前月的天数
for (int i = 0; i < maxDayInMonth; i++)
{
// 仅在第一次加载时（MainForm还未Show）向外界通报进度信息
if (isFirstLoad)
{
initCurrentDay = i + 1; // 记录正在初始化的天数
initProgess = initCurrentDay * 100 / maxDayInMonth; // 记录初始化进度
}
DateTime date = new DateTime(year, month, i + 1);
dateInfosInMonth[storedMonthCount, i + 1] = WebServices.ApiQueryOnJuhe(date); // 查询黄历信息
Console.WriteLine(year.ToString() + "/" + month.ToString() + "/" + (i + 1).ToString());
}
isFirstLoad = false;
storedMonthCount++;
}
// 分配ApiQuery任务中月份的优先级
private static void AssignPriority(DateMonth centralMonth)
{
int assignedMonthCount = 0;
// 清空awaitingMonthsQueue
awaitingMonthsQueue.Clear();
// 分配顺序：摆动数列，如centralMonth为2016.8，队列为：(2016.8), 2016.9, 2016.7, 2016.10, 2016.6 ...
for (int i = 0, loopCount = 0; assignedMonthCount < MAXMONTHSTORAGE; loopCount++)
{
i = -i;
if ((loopCount + 1) % 2 == 0) // 每隔一次待分配的月份加1
{
i++;
}
DateMonth month = centralMonth.AddMonth(i);
// 跳过已queried的月份
if (!queriedMonthList.Exists(var => var.Year == month.Year && var.Month == month.Month))
{
awaitingMonthsQueue.Enqueue(month); // 加入队列
assignedMonthCount++;
}
}
}
private static void CurrentShowingMonthChangedHandler(object o)
{
DateMonth newMonth = o as DateMonth;
if (newMonth == null)
{
throw new ArgumentException();
}
AssignPriority(newMonth); // 按当前月份为中心月份重新分配优先级
}
private static void NewMonthQueryRequestedHandler(object o)
{
DateMonth newMonth = o as DateMonth;
if (newMonth == null)
{
throw new ArgumentException();
}
// 将刚查询的月份加入queriedMonthList
queriedMonthList.Add(newMonth);
}
// 初始化
public static void Initialize(DateMonth currentShowingMonth)
{
queriedMonthList.Add(currentShowingMonth); // 添加本月到已查询的月份列表
// 事件布线
DynamicApiQueryQueue.NewMonthQueryRequested += new MyEventHandlerArgs(NewMonthQueryRequestedHandler);
OnlineDateInfoDatabase.NewMonthQueried += new MyEventHandlerArgs(NewMonthQueriedHandler);
MainForm.CurrentShowingMonthChanged += new MyEventHandlerArgs(CurrentShowingMonthChangedHandler);
AssignPriority(currentShowingMonth); // 为边界范围内的所有月份分配优先级
DynamicApiQuery(); // 启动工作线程
isInitialized = true;
isRunning = true;
}
// 动态查询Api，核心方法
private static void DynamicApiQuery()
{
Task queryTask = Task.Factory.StartNew(delegate
{
Thread.Sleep(1000); // 每分配完一个月份后阻塞线程，防止占用大量带宽
if (awaitingMonthsQueue.Count > 0)
{
queryingMonth = awaitingMonthsQueue.Dequeue();
OnNewMonthQueryRequested(queryingMonth); // 请求查询api
}
else
{
throw new InvalidOperationException(); // 发生未知错误，队列中无元素
}
});
}
private static void NewMonthQueryRequestedHandler(object o)
{
DateMonth newMonth = o as DateMonth;
if (newMonth == null)
{
throw new ArgumentException();
}
if (searchMonth(newMonth.Year, newMonth.Month) != -1) // 异常：指定月份的黄历信息已存在于数据库中
{
// ignore
}
else
{
InitDateInfo(newMonth.Year, newMonth.Month);
}
OnNewMonthQueried(newMonth);
}
private static void NewMonthQueriedHandler(object o)
{
DateMonth newMonth = o as DateMonth;
if (newMonth == null)
{
throw new ArgumentException();
}
// 重新启动DynamicApiQuery线程
if (awaitingMonthsQueue.Count != 0)
{
DynamicApiQuery();
}
else
{
Console.WriteLine("DynamicApiQueryFinished!");
isRunning = false;
}
}
/// <summary>
/// 比较两个DateMonth类型相距的月份数，返回正数说明this更大，否则anotherMonth更大
/// </summary>
/// <param name="anotherMonth">待比较的月份</param>
/// <returns></returns>
public int Compare(DateMonth anotherMonth)
{
if (this.Year == anotherMonth.Year)
{
return(this.Month - anotherMonth.Month);
}
else if (this.Year - anotherMonth.Year == 1)
{
return(this.Month + (12 - anotherMonth.Month));
}
else if (this.Year - anotherMonth.Year == -1)
{
return(-((12 - this.Month) + anotherMonth.Month));
}
else if (this.Year - anotherMonth.Year > 1)
{
return((this.Year - anotherMonth.Year - 1) * 12 + this.Month + (12 - anotherMonth.Month));
}
else
{
return(-(this.Year - anotherMonth.Year - 1) * 12 + -((12 - this.Month) + anotherMonth.Month));
}
}
public static event MyEventHandlerArgs NewMonthQueried; // 新月份已查询事件，在DynamicApiQueryQueue和MainForm中被处理
private static void OnNewMonthQueried(DateMonth dateMonth)
{
NewMonthQueried?.Invoke(dateMonth);
}
/// <summary>
/// 比较该月份与另一月份相距的月份数，返回正数说明this更大，否则anotherMonth更大
/// </summary>
/// <param name="year">年</param>
/// <param name="month">月</param>
/// <returns></returns>
public int Compare(int year, int month)
{
DateMonth dateMonth = new DateMonth(year, month);
return(Compare(dateMonth));
}