/// <summary>
/// 根据配置和指定的数据源初始化<see cref="SyncSession"/>。
/// </summary>
/// <param name="planName">配置文件中的计划名称</param>
/// <param name="dataProvider"><see cref="DataProviderBase"/>的派生类型的对象，提供源数据。</param>
/// <returns></returns>
public static SyncSession CreateSession(string planName, DataProviderBase dataProvider)
{
Configuration.PermissionCenterIncomeSyncSettings config = Configuration.PermissionCenterIncomeSyncSettings.GetConfig();
var planConfig = config.SyncPlans[planName];
if (planConfig == null)
{
throw new ArgumentException("未找到同步方案 " + planName, "providerName");
}
HashSet <string> comparerNames = new HashSet <string>();
HashSet <string> setterNames = new HashSet <string>();
PropertyMappingCollection mappings = new PropertyMappingCollection();
mappings.SourceKeyProperty = planConfig.SourceKeyProperty;
foreach (PropertyMappingConfigurationElement item in planConfig.PropertyMappings)
{
comparerNames.Add(item.ComparerName);
setterNames.Add(item.SetterName); //需要哪些比较器和设置器
mappings.Add(item.SourceProperty, new PropertyMapping(item.SourceProperty, item.TargetProperty, item.ComparerName, item.SetterName, new WrappedNameValueCollection(item.Parameters)));
}
var comparers = CreateComparers(comparerNames, config.Comparers);
var setters = CreateSetters(setterNames, config.PropertySetters);
IList <LogProviderBase> loggers = CreateLoggers(planConfig);
SyncSession task = new SyncSession(planName, dataProvider, comparers, setters, loggers, mappings);
task.batchSize = planConfig.BatchSize;
return(task);
}
private SyncSession(string planName, DataProviderBase provider, PropertyComparerCollection comparers, PropertySetterCollection setters, IList <LogProviderBase> loggers, PropertyMappingCollection mappings)
{
this.planName = planName;
this.provider = provider;
this.comparers = comparers;
this.setters = setters;
this.loggers = loggers;
this.mappings = mappings;
this.batchSize = 1;
}
public virtual void Execute(string planName, DataProviderBase dataProvider)
{
SyncSession session = SyncSession.CreateSession(planName, dataProvider);
SyncEventArgs e = new SyncEventArgs(session);
OnBeforeExecute(e);
SCDataOperationLockContext.Current.DoAddLockAction(true, "向权限中心同步", () => InnerExecute(session));
OnAfterExecute(e);
}
public virtual void Execute(string planName, DataProviderBase dataProvider)
{
SyncSession session = SyncSession.CreateSession(planName, dataProvider);
SyncEventArgs e = new SyncEventArgs(session);
OnBeforeExecute(e);
SCDataOperationLockContext.Current.DoAddLockAction(true, "向权限中心同步", () => InnerExecute(session));
OnAfterExecute(e);
}
private int FetchToBuffer(List <NameObjectCollection> buffer, DataProviderBase dataSource, int size)
{
int count = 0;
while (count < size && dataSource.MoveNext())
{
count++;
NameObjectCollection data = new NameObjectCollection(dataSource.CurrentData);
buffer.Add(data);
}
return(count);
}
private void DoOneByOneExecute(SyncSession session)
{
DataProviderBase provider = session.SourceProvider;
provider.Reset();
while (provider.MoveNext())
{
string key = (string)provider.CurrentData[session.Mappings.SourceKeyProperty];
if (string.IsNullOrWhiteSpace(key))
{
throw new SyncException("数据源提供的对象的ID为空");
}
SchemaObjectBase scObj = LoadSchemaObject(key);
CompareAndChange(session, provider.CurrentData, session.Mappings.AllObjectValues, scObj);
}
}
/// <summary>
/// 根据配置初始化一个<see cref="SyncSession"/>
/// </summary>
/// <param name="planName">配置文件中的计划名称</param>
/// <returns></returns>
public static SyncSession CreateSession(string planName)
{
Configuration.PermissionCenterIncomeSyncSettings config = Configuration.PermissionCenterIncomeSyncSettings.GetConfig();
var planConfig = config.SyncPlans[planName];
if (planConfig == null)
{
throw new ArgumentException("未找到同步方案 " + planName, "providerName");
}
if (planConfig.DataProvider == null)
{
throw new System.Configuration.ConfigurationErrorsException("配置文件中，未配置dataProvider");
}
DataProviderBase provider = (DataProviderBase)CreateDataProvider(planConfig.DataProvider);
return(CreateSession(planName, provider));
}
private void DoBatchExecute(SyncSession session)
{
DataProviderBase provider = session.SourceProvider;
provider.Reset();
List <NameObjectCollection> buffer = new List <NameObjectCollection>(session.BatchSize);
int len;
do
{
buffer.Clear();
len = FetchToBuffer(buffer, provider, session.BatchSize);
if (len > 0)
{
string[] keys = new string[len];
for (int i = buffer.Count - 1; i >= 0; i--)
{
keys[i] = (string)buffer[i][session.Mappings.SourceKeyProperty];
if (string.IsNullOrWhiteSpace(keys[i]))
{
throw new SyncException("数据源提供的对象的ID为空");
}
}
SchemaObjectCollection scObjs = LoadSchemaObjects(keys);
foreach (NameObjectCollection item in buffer)
{
string id = (string)item[session.Mappings.SourceKeyProperty];
SchemaObjectBase scObj = scObjs[id];
if (scObjs != null)
{
CompareAndChange(session, item, session.Mappings.AllObjectValues, scObj);
}
}
}
} while (len > 0 && len != session.BatchSize);
}
private int FetchToBuffer(List<NameObjectCollection> buffer, DataProviderBase dataSource, int size)
{
int count = 0;
while (count < size && dataSource.MoveNext())
{
count++;
NameObjectCollection data = new NameObjectCollection(dataSource.CurrentData);
buffer.Add(data);
}
return count;
}
