internal static ClassTypeInformation LoadTypeInformation(Type type, BindingFlags bindingFlags = BindingFlags.NonPublic | BindingFlags.Instance)
{
// Validation
if (ClassTypeList == null)
{
return(null);
}
// Check To See If Type Is Already Cached
ClassTypeInformation classTypeInfo = ClassTypeList.Where(cls => cls.Type == type).FirstOrDefault();
// Validation
if (classTypeInfo != null)
{
return(classTypeInfo);
}
// Create Class Information
ClassTypeInformation classInfo = new ClassTypeInformation(type);
// Add Class Information To Cache List
ClassTypeList.Add(classInfo);
// For Each Class Child Type
classInfo.ChildTypes
.ForEach(childType =>
// Load Child Type Information
LoadTypeInformation(childType, bindingFlags));
return(classInfo);
}
internal void LoadChildMemberData(object obj, DataRow dr, BindingFlags bindingFlags = BindingFlags.NonPublic | BindingFlags.Instance)
{
try
{
#region Get Class Information
// Get Cached Class Information Collection
ClassTypeInformation classInfo = CacheRepository.LoadTypeInformation(obj.GetType(), bindingFlags);
// Validation
if (classInfo == null || classInfo.DataTable == null)
{
return;
}
#endregion
#region Get Class Common Primary Keys
// Create New List Of Common Primary Keys
List <MemberTypeInformation> listCommonPrimaryKeys = new List <MemberTypeInformation>();
// Loop Primary Key Members
foreach (MemberTypeInformation memberPK in this.PrimaryKeyMembers)
{
MemberTypeInformation commonPrimaryKey = classInfo.PrimaryKeyMembers.Where(pk => pk.ColumnName == memberPK.ColumnName).FirstOrDefault();
// Validation
if (commonPrimaryKey != null)
{
// Add Primary Key To List
listCommonPrimaryKeys.Add(commonPrimaryKey);
}
}
#endregion
#region Load Collection And Instance Members
// Load Object Instance Properties
this.LoadInstanceList(obj, listCommonPrimaryKeys, bindingFlags);
// Load Instance Collection Properties
this.LoadCollectionList(obj, dr, listCommonPrimaryKeys, bindingFlags);
#endregion
}
catch (Exception ex)
{
Console.WriteLine("ERROR IN TYPE " + this.Type + " - ROW INDEX: " + this.DataTable.Rows.IndexOf(dr) + " Detail: " + ex.ToString());
}
}
private void LoadInstanceList(object obj, List <MemberTypeInformation> listPrimaryKeyMembers, BindingFlags bindingFlags = BindingFlags.NonPublic | BindingFlags.Instance)
{
string strError = "";
// Loop Instance Fields
foreach (FieldInfo fieldChildInstance in obj.InstanceFields(bindingFlags))
{
#region Get Class Information
// Get Cached Class Information Collection
ClassTypeInformation classInfoInstance = CacheRepository.LoadTypeInformation(fieldChildInstance.CollectionFieldType(), bindingFlags);
// Validation
if (classInfoInstance == null || classInfoInstance.DataTable == null || classInfoInstance.CanBeHydrated == false)
{
return;
}
#endregion
#region Filter Class DataTable
// Create Data Filter
string strFilter = String.Join(" AND ", listPrimaryKeyMembers.Select(pk => pk.ColumnName + "=" + classInfoInstance.DataTable.Rows[0][pk.ColumnName]).ToArray());
// Get DataRow
DataRow drInstance = classInfoInstance.DataTable.Select(strFilter).First();
// Validation
if (drInstance == null)
{
return;
}
#endregion
#region Create Instance With Filtered DataTable
// Create Instance
object objNew = classInfoInstance.CreateInstance(fieldChildInstance.FieldType, drInstance, ref strError, bindingFlags);
// Set Value
fieldChildInstance.SetValue(obj, objNew);
#endregion
}
}
internal List <object> CreateInstanceList(ClassTypeInformation classInfo, DataTable dt, ref string strError, BindingFlags bindingFlags = BindingFlags.NonPublic | BindingFlags.Instance)
{
List <object> listObjects = new List <object>();
try
{
// Validation
if (classInfo.Type.HasParameterlessConstructor() == false)
{
return(null);
}
// Loop DataRows
foreach (DataRow dr in dt.Rows)
{
// Check Kill Switch To Break Out Of Recursive Reflection
if (CacheRepository.KILL_SWITCH == true)
{
break;
}
// Create New Instance
object obj = this.CreateInstance(classInfo.Type, dr, ref strError, bindingFlags);
// Validation
if (obj == null || strError != "")
{
return(null);
}
// Load Child Member Data
this.LoadChildMemberData(obj, dr, bindingFlags);
// Add Object To List
listObjects.Add(obj);
}
return(listObjects);
}
catch (Exception ex)
{
strError = ex.ToString();
return(null);
}
}
public static List <T> CreateInstanceList <T>(DataTable dt, ref string strError, BindingFlags bindingFlags = BindingFlags.NonPublic | BindingFlags.Instance)
{
DateTime dtStart = DateTime.Now;
// Validation
if (typeof(T).HasParameterlessConstructor() == false)
{
return(null);
}
// Set Cache Repository DataTable
CacheRepository.DataTable = dt;
// Spider Crawl Load Reflection And Data
ClassTypeInformation classInfo = CacheRepository.LoadTypeInformation(typeof(T), bindingFlags);
// Validation
if (classInfo == null)
{
return(default(List <T>));
}
// Load All Class Type DataTables
CacheRepository.ClassTypeList.ForEach(cls => cls.LoadDataTable());
// Create Instance List
List <object> listTemp = classInfo.CreateInstanceList(classInfo, classInfo.DataTable, ref strError, bindingFlags);
// Validation
if (listTemp == null)
{
return(default(List <T>));
}
// Convert Objects To Type <T>
List <T> listObjects = (List <T>)listTemp.Select(obj => (T)obj).ToList();
// Remove Null Objects
listObjects = listObjects.Where(obj => obj != null).ToList();
return(listObjects);
}
public static T CreateInstance <T>(DataRow dr, ref string strError, BindingFlags bindingFlags = BindingFlags.NonPublic | BindingFlags.Instance)
{
try
{
// Get Cached Class Information Instance
ClassTypeInformation classInfo = CacheRepository.ClassTypeList.Where(cls => cls.Type == typeof(T)).FirstOrDefault();
// Validation
if (classInfo == null)
{
return(default(T));
}
object obj = classInfo.CreateInstance(typeof(T), dr, ref strError, bindingFlags);
return((T)obj);
}
catch (Exception ex)
{
strError = ex.ToString();
return(default(T));
}
}
private void LoadCollectionList(object obj, DataRow dr, List <MemberTypeInformation> listPrimaryKeyMembers, BindingFlags bindingFlags = BindingFlags.NonPublic | BindingFlags.Instance)
{
string strError = "";
// Loop Collection Fields
foreach (FieldInfo fieldChildCollection in obj.CollectionFields(bindingFlags))
{
#region Get Class Information
// Get Cached Class Information Collection
ClassTypeInformation classInfoCollection = CacheRepository.LoadTypeInformation(fieldChildCollection.CollectionFieldType(), bindingFlags);
// Validation
if (classInfoCollection == null || classInfoCollection.DataTable == null || classInfoCollection.CanBeHydrated == false)
{
return;
}
#endregion
#region Filter Class DataTable
// Create Data Filter
string strFilter = String.Join(" AND ", listPrimaryKeyMembers.Select(pk => pk.GetQueryFilterString(dr[pk.ColumnName])).ToArray());
// Get DataRows Based On Filter
DataRow[] rows = classInfoCollection.DataTable.Select(strFilter);
// Validation
if (rows == null || rows.Count() == 0)
{
return;
}
// Copy Rows To DataTable
DataTable dtInstance = rows.CopyToDataTable();
#endregion
#region Create Instance List With Filtered DataTable
// Create Instance List
List <object> listItems = classInfoCollection.CreateInstanceList(classInfoCollection, dtInstance, ref strError, bindingFlags);
// Validation
if (listItems == null)
{
continue;
}
// Create List Instance
object objList = Activator.CreateInstance(fieldChildCollection.FieldType, null);
// Loop Instance List
foreach (object objItem in listItems)
{
// Invoke Add Method And Add Instance To List
fieldChildCollection.FieldType.GetMethod("Add")
.Invoke(objList, new object[] { objItem });
}
// Set List Value
fieldChildCollection.SetValue(obj, objList);
#endregion
}
}
public static DataTable CreateDataTable <T>(List <T> listObjects, ref string strError)
{
// Get Class Type
ClassTypeInformation classInfo = CacheRepository.ClassTypeList.Where(cls => cls.Type == typeof(T)).FirstOrDefault();
// Validation
if (classInfo == null)
{
return(null);
}
// Create New DataTable
DataTable dt = new DataTable();
// Loop Class Type Members
foreach (MemberTypeInformation member in classInfo.Members)
{
// Validation
if (member.ColumnName == null || member.ColumnName == "" || member.DataType == null || member.FieldInfo == null)
{
continue;
}
DataColumn column = new DataColumn(member.ColumnName, member.DataType);
column.AllowDBNull = member.Nullable;
if (member.DataType == typeof(string))
{
column.MaxLength = (member.FieldLength > 0) ? member.FieldLength : 255;
}
dt.Columns.Add(column);
}
// Loop Object List
foreach (T obj in listObjects)
{
// Create New Row
DataRow dr = dt.NewRow();
// Loop Class Members
foreach (MemberTypeInformation member in classInfo.Members)
{
// Validation
if (member.ColumnName == null || member.ColumnName == "" || member.DataType == null || member.FieldInfo == null)
{
continue;
}
// Get Member Value
object objValue = member.FieldInfo.GetValue(obj);
// Set DataColumn Value
dr[member.ColumnName] = objValue;
}
// Add Row To Table
dt.Rows.Add(dr);
}
return(dt);
}
