private static bool CheckExistence(DbSession session, Guid spiderId, EGrabType grabType, string issueName)
{
var query = IORMProvider.GetDbQueryBuilder(session).SelectBuilder;
query.ComponentSelect.Add(new ComponentValueOfSelect("1"));
query.ComponentWhere.Add(new ComponentValueOfWhere(TGrabRequestProperties.SpiderId, spiderId, LocateType.Equal));
query.ComponentWhere.Add(new ComponentValueOfWhere(TGrabRequestProperties.GrabType, grabType, LocateType.Equal));
query.ComponentWhere.Add(new ComponentValueOfWhere(TGrabRequestProperties.IssueName, issueName, LocateType.Equal));
var result = IORMProvider.GetQueryOperator(session).SelectAsInt <TGrabRequest>(session, query);
return(result != null);
}
public CreateGrabRequestResult Create(DbSession session, Guid spiderId, EGrabType grabType, string issueName, string spiderName)
{
if (CheckExistence(session, spiderId, grabType, issueName))
{
return(CreateGrabRequestResult.Existed);
}
RequestId = Guid.NewGuid();
SpiderId = spiderId;
GrabType = grabType;
IssueName = issueName;
SpiderName = spiderName;
ProcessStatus = EProcessStatus.Ready;
Message = "";
return(this.DbInsert(session) ? CreateGrabRequestResult.Success : CreateGrabRequestResult.DbOperationFailed);
}
public static IGrabConfig GetGrabConfig(XElement element, ConfigOfSpider spiderConfig)
{
EGrabType grabType = (EGrabType)Enum.Parse(typeof(EGrabType), element.Attribute(nameof(EGrabType)).Value);
switch (grabType)
{
case EGrabType.File:
return(new GrabConfigOfFile(spiderConfig, element));
case EGrabType.StaticList:
return(new GrabConfigOfStaticList(element, spiderConfig));
case EGrabType.DynamicList:
return(new GrabConfigOfDynamicList(element, spiderConfig));
default:
throw new NotImplementedException("暂未实现该类型的抓取配置" + grabType);
}
}
public static IGrabConfig GetGrabConfig(EGrabType grabType, ConfigOfSpider spiderConfig)
{
switch (grabType)
{
case EGrabType.File:
return(new GrabConfigOfFile(spiderConfig));
case EGrabType.StaticList:
return(new GrabConfigOfStaticList(spiderConfig));
case EGrabType.DynamicList:
return(new GrabConfigOfDynamicList(spiderConfig));
case EGrabType.Detail:
return(new GrabConfigOfDetail(spiderConfig));
default:
throw new NotImplementedException("暂未实现该类型的抓取配置" + grabType);
}
}
private void SetDetailForGrabConfig(object sender, RoutedEventArgs e)
{
string type = (e.OriginalSource as Button).Content.ToString();
EGrabType grabType = (EGrabType)Enum.Parse(typeof(EGrabType), type);
var grabConfig = SpiderManager.CurrentConfigOfSpider.GrabConfigs.FirstOrDefault(c => c.GetGrabType() == grabType);
switch (grabType)
{
case EGrabType.File:
new GrabManageOfFileGrab(this, SpiderManager, grabConfig == null ? new GrabConfigOfFile(SpiderManager.CurrentConfigOfSpider) : grabConfig as GrabConfigOfFile).Show();
break;
case EGrabType.StaticList:
new GrabManageOfSListContent(this, SpiderManager, grabConfig == null ? new GrabConfigOfStaticList(SpiderManager.CurrentConfigOfSpider) : grabConfig as GrabConfigOfStaticList).Show();
break;
case EGrabType.Detail:
case EGrabType.DynamicList:
default:
MessageBox.Show("未实现该类型的编辑窗口");
break;
}
}
public TGrabRequest(Guid spiderId, EGrabType grabType, String issueName)
{
SpiderId = spiderId;
GrabType = grabType;
IssueName = issueName;
}
