private static void HandleRecursiveComparison(BindingFlags propertyBindingFlags, List <string> validationErrorsList, bool ignoreComplexTypes, string sourceObjectName, PropertyInfo propertyInfo,
Type sourceType,
ref bool allMatched, object sourceVal, object targetVal)
{
if (sourceVal != null || targetVal != null)
{
if (sourceVal != null)
{
if (targetVal == null)
{
// ReSharper disable once ExpressionIsAlwaysNull - this is for proper error handling (using consistent method for all comparisons)
ObjectComparison.CompareValues(sourceVal, targetVal, propertyInfo, sourceType, ref allMatched, validationErrorsList, sourceObjectName);
}
else
{
bool innerMatched = sourceVal.PropertiesAreEqual(targetVal, propertyBindingFlags,
throwIfNotEqual: false,
validationErrorsList: validationErrorsList,
ignoreComplexTypes: ignoreComplexTypes,
recursiveValidation: true,
sourceObjectName: propertyInfo.Name);
if (!innerMatched)
{
allMatched = false;
}
}
}
}
else
{
// ReSharper disable once ExpressionIsAlwaysNull - this is for proper error handling (using consistent method for all comparisons)
ObjectComparison.CompareValues(sourceVal, targetVal, propertyInfo, sourceType, ref allMatched, validationErrorsList, sourceObjectName);
}
}
private static void CompareProperties <T>(T source, T target, BindingFlags propertyBindingFlags, bool recursiveValidation, bool ignoreComplexTypes, List <string> validationErrorsList, string sourceObjectName,
PropertyInfo propertyInfo, Type sourceType, ref bool allMatched) where T : class
{
if (propertyInfo.IsNonStringEnumerable())
{
ObjectComparison.HandleListComparison(source, target, propertyBindingFlags, validationErrorsList, ignoreComplexTypes, propertyInfo, sourceType, ref allMatched);
}
else
{
object sourceVal = propertyInfo.GetValue(source, null);
object targetVal = propertyInfo.GetValue(target, null);
if (propertyInfo.GetUnderlyingType().IsSimpleType())
{
ObjectComparison.CompareValues(sourceVal, targetVal, propertyInfo, sourceType, ref allMatched, validationErrorsList, sourceObjectName);
}
else
{
if (ignoreComplexTypes)
{
return;
}
if (!recursiveValidation)
{
ObjectComparison.CompareValues(sourceVal, targetVal, propertyInfo, sourceType, ref allMatched, validationErrorsList, sourceObjectName);
}
else
{
ObjectComparison.HandleRecursiveComparison(propertyBindingFlags, validationErrorsList, false, sourceObjectName, propertyInfo, sourceType, ref allMatched, sourceVal,
targetVal);
}
}
}
}
/// <summary>
/// Returns true if property values are equal between the source and target objects
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="source">First object to compare</param>
/// <param name="target">Second object to compare</param>
/// <param name="propertyBindingFlags">Specifies which types of properties should be included</param>
/// <param name="throwIfNotEqual">If true - Throw Aggregate exception containing each incorrect property</param>
/// <param name="validationErrorsList">List of validation errors</param>
/// <param name="recursiveValidation">If true - Nested complex types will be processed recursively</param>
/// <param name="sourceObjectName">The name of the source object (for error logging purpose)</param>
/// <param name="ignoreProperties">List of property names to be ignored from the comparison</param>
/// <param name="ignoreComplexTypes">If true - Complex types comparison will be skipped</param>
/// <param name="includeProperties">
/// List of property names to be included in the comparison (anything not specified is
/// ignored!)
/// </param>
/// <returns></returns>
public static bool PropertiesAreEqual <T>(this T source, T target, BindingFlags propertyBindingFlags, bool throwIfNotEqual = false, bool recursiveValidation = false,
IEnumerable <string> ignoreProperties = null, bool ignoreComplexTypes = false, IEnumerable <string> includeProperties = null, List <string> validationErrorsList = null,
string sourceObjectName = null) where T : class
{
source.CheckArgumentNull("source");
if (validationErrorsList == null)
{
validationErrorsList = new List <string>();
}
bool allMatched = true;
if (target == null)
{
allMatched = false;
validationErrorsList.Add("Target object is NULL");
}
else
{
Type sourceType = source.GetType();
List <PropertyInfo> propertiesList = sourceType.GetProperties(propertyBindingFlags).ToList();
propertiesList = ObjectComparison.FilterPropertiesList(ignoreProperties, includeProperties, propertiesList);
foreach (PropertyInfo propertyInfo in propertiesList)
{
ObjectComparison.CompareProperties(source, target, propertyBindingFlags, recursiveValidation, ignoreComplexTypes, validationErrorsList, sourceObjectName, propertyInfo, sourceType,
ref allMatched);
}
}
if (throwIfNotEqual && !allMatched)
{
List <Exception> exList = new List <Exception>();
foreach (string error in validationErrorsList)
{
exList.Add(new Exception(error));
}
throw new AggregateException(exList);
}
return(allMatched);
}
