internal void SerializeContents(WorkflowMarkupSerializationManager serializationManager, object obj, XmlWriter writer, bool dictionaryKey)
{
if (serializationManager == null)
throw new ArgumentNullException("serializationManager");
if (obj == null)
throw new ArgumentNullException("obj");
if (writer == null)
throw new ArgumentNullException("writer");
WorkflowMarkupSerializer serializer = null;
try
{
//Now get the serializer to persist the properties, if the serializer is not found then we dont serialize the properties
serializer = serializationManager.GetSerializer(obj.GetType(), typeof(WorkflowMarkupSerializer)) as WorkflowMarkupSerializer;
}
catch (Exception e)
{
serializationManager.ReportError(new WorkflowMarkupSerializationException(SR.GetString(SR.Error_SerializerThrewException, obj.GetType().FullName, e.Message), e));
return;
}
if (serializer == null)
{
serializationManager.ReportError(new WorkflowMarkupSerializationException(SR.GetString(SR.Error_SerializerNotAvailableForSerialize, obj.GetType().FullName)));
return;
}
try
{
serializer.OnBeforeSerialize(serializationManager, obj);
}
catch (Exception e)
{
serializationManager.ReportError(new WorkflowMarkupSerializationException(SR.GetString(SR.Error_SerializerThrewException, obj.GetType().FullName, e.Message), e));
return;
}
Hashtable allProperties = new Hashtable();
ArrayList complexProperties = new ArrayList();
IDictionary<DependencyProperty, object> dependencyProperties = null;
List<PropertyInfo> properties = new List<PropertyInfo>();
List<EventInfo> events = new List<EventInfo>();
Hashtable designTimeTypeNames = null;
// Serialize the extended properties for primitive types also
if (obj.GetType().IsPrimitive || obj.GetType() == typeof(string) || obj.GetType() == typeof(decimal) ||
obj.GetType() == typeof(DateTime) || obj.GetType() == typeof(TimeSpan) || obj.GetType().IsEnum ||
obj.GetType() == typeof(Guid))
{
if (obj.GetType() == typeof(char) || obj.GetType() == typeof(byte) ||
obj.GetType() == typeof(System.Int16) || obj.GetType() == typeof(decimal) ||
obj.GetType() == typeof(DateTime) || obj.GetType() == typeof(TimeSpan) ||
obj.GetType().IsEnum || obj.GetType() == typeof(Guid))
{
//These non CLS-compliant are not supported in the XmlWriter
if ((obj.GetType() != typeof(char)) || (char)obj != '\0')
{
//These non CLS-compliant are not supported in the XmlReader
string stringValue = String.Empty;
if (obj.GetType() == typeof(DateTime))
{
stringValue = ((DateTime)obj).ToString("o", CultureInfo.InvariantCulture);
}
else
{
TypeConverter typeConverter = TypeDescriptor.GetConverter(obj.GetType());
if (typeConverter != null && typeConverter.CanConvertTo(typeof(string)))
stringValue = typeConverter.ConvertTo(null, CultureInfo.InvariantCulture, obj, typeof(string)) as string;
else
stringValue = Convert.ToString(obj, CultureInfo.InvariantCulture);
}
writer.WriteValue(stringValue);
}
}
else if (obj.GetType() == typeof(string))
{
string attribValue = obj as string;
attribValue = attribValue.Replace('\0', ' ');
if (!(attribValue.StartsWith("{", StringComparison.Ordinal) && attribValue.EndsWith("}", StringComparison.Ordinal)))
writer.WriteValue(attribValue);
else
writer.WriteValue("{}" + attribValue);
}
else
{
writer.WriteValue(obj);
}
// For Key properties, we don;t want to get the extended properties
if (!dictionaryKey)
properties.AddRange(serializationManager.GetExtendedProperties(obj));
}
else
{
// Serialize properties
//We first get all the properties, once we have them all, we start distinguishing between
//simple and complex properties, the reason for that is XmlWriter needs to write attributes
//first and elements later
// Dependency events are treated as the same as dependency properties.
try
{
if (obj is DependencyObject && ((DependencyObject)obj).UserData.Contains(UserDataKeys.DesignTimeTypeNames))
designTimeTypeNames = ((DependencyObject)obj).UserData[UserDataKeys.DesignTimeTypeNames] as Hashtable;
dependencyProperties = serializer.GetDependencyProperties(serializationManager, obj);
properties.AddRange(serializer.GetProperties(serializationManager, obj));
// For Key properties, we don;t want to get the extended properties
if (!dictionaryKey)
properties.AddRange(serializationManager.GetExtendedProperties(obj));
events.AddRange(serializer.GetEvents(serializationManager, obj));
}
catch (Exception e)
{
serializationManager.ReportError(new WorkflowMarkupSerializationException(SR.GetString(SR.Error_SerializerThrewException, obj.GetType().FullName, e.Message), e));
return;
}
}
if (dependencyProperties != null)
{
// For attached properties that does not have a corresponding real property on the object, if the value is a design time
// type, it may not be set through dependency property SetValue, therefore will not be present in the dependencyProperties
// collection, we'll have to get the dependency property object ourselves.
if (designTimeTypeNames != null)
{
foreach (object key in designTimeTypeNames.Keys)
{
DependencyProperty dependencyProperty = key as DependencyProperty;
if (dependencyProperty != null && !dependencyProperties.ContainsKey(dependencyProperty))
dependencyProperties.Add(dependencyProperty, designTimeTypeNames[dependencyProperty]);
}
}
// Add all dependency properties to the master collection.
foreach (DependencyProperty dependencyProperty in dependencyProperties.Keys)
{
string propertyName = String.Empty;
if (dependencyProperty.IsAttached)
{
string prefix = String.Empty;
XmlQualifiedName qualifiedName = serializationManager.GetXmlQualifiedName(dependencyProperty.OwnerType, out prefix);
propertyName = qualifiedName.Name + "." + dependencyProperty.Name;
}
else
{
propertyName = dependencyProperty.Name;
}
if (dependencyProperty.IsAttached || !dependencyProperty.DefaultMetadata.IsMetaProperty)
allProperties.Add(propertyName, dependencyProperty);
}
}
if (properties != null)
{
foreach (PropertyInfo propInfo in properties)
{
// Do not serialize properties that have corresponding dynamic properties.
if (propInfo != null && !allProperties.ContainsKey(propInfo.Name))
allProperties.Add(propInfo.Name, propInfo);
}
}
if (events != null)
{
foreach (EventInfo eventInfo in events)
{
// Do not serialize events that have corresponding dynamic properties.
if (eventInfo != null && !allProperties.ContainsKey(eventInfo.Name))
allProperties.Add(eventInfo.Name, eventInfo);
}
}
using (ContentProperty contentProperty = new ContentProperty(serializationManager, serializer, obj))
{
foreach (object propertyObj in allProperties.Values)
{
string propertyName = String.Empty;
object propertyValue = null;
Type propertyInfoType = null;
try
{
if (propertyObj is PropertyInfo)
{
PropertyInfo property = propertyObj as PropertyInfo;
// If the property has parameters we can not serialize it , we just move on.
ParameterInfo[] indexParameters = property.GetIndexParameters();
if (indexParameters != null && indexParameters.Length > 0)
continue;
propertyName = property.Name;
propertyValue = null;
if (property.CanRead)
{
propertyValue = property.GetValue(obj, null);
if (propertyValue == null && TypeProvider.IsAssignable(typeof(Type), property.PropertyType))
{
// See if we have a design time value for the property
DependencyProperty dependencyProperty = DependencyProperty.FromName(property.Name, property.ReflectedType);
if (dependencyProperty != null)
propertyValue = Helpers.GetDesignTimeTypeName(obj, dependencyProperty);
if (propertyValue == null)
{
string key = property.ReflectedType.FullName + "." + property.Name;
propertyValue = Helpers.GetDesignTimeTypeName(obj, key);
}
if (propertyValue != null)
propertyValue = new TypeExtension((string)propertyValue);
}
}
propertyInfoType = property.PropertyType;
}
else if (propertyObj is EventInfo)
{
EventInfo evt = propertyObj as EventInfo;
propertyName = evt.Name;
propertyValue = WorkflowMarkupSerializationHelpers.GetEventHandlerName(obj, evt.Name);
if ((propertyValue == null || (propertyValue is string && string.IsNullOrEmpty((string)propertyValue)))
&& obj is DependencyObject)
{
// The object is not created through deserialization, we should check to see if the delegate is
// created and added to list. We can only serialize the handler if its target type is the same
// as the activity type that's be designed.
DependencyProperty dependencyProperty = DependencyProperty.FromName(propertyName, obj.GetType());
if (dependencyProperty != null)
{
Activity activity = serializationManager.Context[typeof(Activity)] as Activity;
Delegate handler = ((DependencyObject)obj).GetHandler(dependencyProperty) as Delegate;
if (handler != null && activity != null && TypeProvider.Equals(handler.Target.GetType(), Helpers.GetRootActivity(activity).GetType()))
propertyValue = handler;
}
}
propertyInfoType = evt.EventHandlerType;
}
else if (propertyObj is DependencyProperty)
{
DependencyProperty dependencyProperty = propertyObj as DependencyProperty;
propertyName = dependencyProperty.Name;
propertyValue = dependencyProperties[dependencyProperty];
propertyInfoType = dependencyProperty.PropertyType;
}
}
catch (Exception e)
{
while (e is TargetInvocationException && e.InnerException != null)
e = e.InnerException;
serializationManager.ReportError(new WorkflowMarkupSerializationException(SR.GetString(SR.Error_SerializerPropertyGetFailed, new object[] { propertyName, obj.GetType().FullName, e.Message })));
continue;
}
if (propertyObj is PropertyInfo && contentProperty.Property == (PropertyInfo)propertyObj)
continue;
Type propertyValueType = null;
if (propertyValue != null)
{
propertyValue = GetMarkupExtensionFromValue(propertyValue);
propertyValueType = propertyValue.GetType();
}
else if (propertyObj is PropertyInfo)
{
propertyValue = new NullExtension();
propertyValueType = propertyValue.GetType();
Attribute[] attributes = Attribute.GetCustomAttributes(propertyObj as PropertyInfo, typeof(DefaultValueAttribute), true);
if (attributes.Length > 0)
{
DefaultValueAttribute defaultValueAttr = attributes[0] as DefaultValueAttribute;
if (defaultValueAttr.Value == null)
propertyValue = null;
}
}
if (propertyValue != null)
propertyValueType = propertyValue.GetType();
//Now get the serializer to persist the properties, if the serializer is not found then we dont serialize the properties
serializationManager.Context.Push(propertyObj);
WorkflowMarkupSerializer propValueSerializer = null;
try
{
propValueSerializer = serializationManager.GetSerializer(propertyValueType, typeof(WorkflowMarkupSerializer)) as WorkflowMarkupSerializer;
}
catch (Exception e)
{
serializationManager.ReportError(new WorkflowMarkupSerializationException(SR.GetString(SR.Error_SerializerThrewException, obj.GetType().FullName, e.Message), e));
serializationManager.Context.Pop();
continue;
}
if (propValueSerializer == null)
{
serializationManager.ReportError(new WorkflowMarkupSerializationException(SR.GetString(SR.Error_SerializerNotAvailableForSerialize, propertyValueType.FullName)));
serializationManager.Context.Pop();
continue;
}
// ask serializer if we can serialize
try
{
if (propValueSerializer.ShouldSerializeValue(serializationManager, propertyValue))
{
//NOTE: THE FOLLOWING CONDITION ABOUT propertyInfoType != typeof(object) is VALID AS WE SHOULD NOT SERIALIZE A PROPERTY OF TYPE OBJECT TO STRING
//IF WE DO THAT THEN WE DO NOT KNOWN WHAT WAS THE TYPE OF ORIGINAL OBJECT AND SERIALIZER WONT BE ABLE TO GET THE STRING BACK INTO THE CORRECT TYPE,
//AS THE TYPE INFORMATION IS LOST
if (propValueSerializer.CanSerializeToString(serializationManager, propertyValue) && propertyInfoType != typeof(object))
{
using (new SafeXmlNodeWriter(serializationManager, obj, propertyObj, XmlNodeType.Attribute))
{
//This is a work around to special case the markup extension serializer as it writes to the stream using writer
if (propValueSerializer is MarkupExtensionSerializer)
{
propValueSerializer.SerializeToString(serializationManager, propertyValue);
}
else
{
string stringValue = propValueSerializer.SerializeToString(serializationManager, propertyValue);
if (!string.IsNullOrEmpty(stringValue))
{
stringValue = stringValue.Replace('\0', ' ');
if (propertyValue is MarkupExtension || !(stringValue.StartsWith("{", StringComparison.Ordinal) && stringValue.EndsWith("}", StringComparison.Ordinal)))
writer.WriteString(stringValue);
else
writer.WriteString("{}" + stringValue);
}
}
}
}
else
{
complexProperties.Add(propertyObj);
}
}
}
catch (Exception e)
{
serializationManager.ReportError(new WorkflowMarkupSerializationException(SR.GetString(SR.Error_SerializerNoSerializeLogic, new object[] { propertyName, obj.GetType().FullName }), e));
}
finally
{
Debug.Assert(serializationManager.Context.Current == propertyObj, "Serializer did not remove an object it pushed into stack.");
serializationManager.Context.Pop();
}
}
try
{
serializer.OnBeforeSerializeContents(serializationManager, obj);
}
catch (Exception e)
{
serializationManager.ReportError(new WorkflowMarkupSerializationException(SR.GetString(SR.Error_SerializerThrewException, obj.GetType().FullName, e.Message), e));
return;
}
// serialize compound properties as child elements of the current node.
foreach (object propertyObj in complexProperties)
{
// get value and check for null
string propertyName = String.Empty;
object propertyValue = null;
Type ownerType = null;
bool isReadOnly = false;
try
{
if (propertyObj is PropertyInfo)
{
PropertyInfo property = propertyObj as PropertyInfo;
propertyName = property.Name;
propertyValue = property.CanRead ? property.GetValue(obj, null) : null;
ownerType = obj.GetType();
isReadOnly = (!property.CanWrite);
}
else if (propertyObj is DependencyProperty)
{
DependencyProperty dependencyProperty = propertyObj as DependencyProperty;
propertyName = dependencyProperty.Name;
propertyValue = dependencyProperties[dependencyProperty];
ownerType = dependencyProperty.OwnerType;
isReadOnly = ((dependencyProperty.DefaultMetadata.Options & DependencyPropertyOptions.ReadOnly) == DependencyPropertyOptions.ReadOnly);
}
}
catch (Exception e)
{
while (e is TargetInvocationException && e.InnerException != null)
e = e.InnerException;
serializationManager.ReportError(new WorkflowMarkupSerializationException(SR.GetString(SR.Error_SerializerPropertyGetFailed, propertyName, ownerType.FullName, e.Message)));
continue;
}
if (propertyObj is PropertyInfo && (PropertyInfo)propertyObj == contentProperty.Property)
continue;
if (propertyValue != null)
{
propertyValue = GetMarkupExtensionFromValue(propertyValue);
WorkflowMarkupSerializer propValueSerializer = serializationManager.GetSerializer(propertyValue.GetType(), typeof(WorkflowMarkupSerializer)) as WorkflowMarkupSerializer;
if (propValueSerializer != null)
{
using (new SafeXmlNodeWriter(serializationManager, obj, propertyObj, XmlNodeType.Element))
{
if (isReadOnly)
propValueSerializer.SerializeContents(serializationManager, propertyValue, writer, false);
else
propValueSerializer.SerializeObject(serializationManager, propertyValue, writer);
}
}
else
{
serializationManager.ReportError(new WorkflowMarkupSerializationException(SR.GetString(SR.Error_SerializerNotAvailableForSerialize, propertyValue.GetType().FullName)));
}
}
}
// serialize the contents
try
{
object contents = contentProperty.GetContents();
if (contents != null)
{
contents = GetMarkupExtensionFromValue(contents);
WorkflowMarkupSerializer propValueSerializer = serializationManager.GetSerializer(contents.GetType(), typeof(WorkflowMarkupSerializer)) as WorkflowMarkupSerializer;
if (propValueSerializer == null)
{
serializationManager.ReportError(new WorkflowMarkupSerializationException(SR.GetString(SR.Error_SerializerNotAvailableForSerialize, contents.GetType())));
}
else
{
//
//NOTE: THE FOLLOWING CONDITION ABOUT contentProperty.Property.PropertyType != typeof(object) is VALID AS WE SHOULD NOT SERIALIZE A PROPERTY OF TYPE OBJECT TO STRING
//IF WE DO THAT THEN WE DO NOT KNOWN WHAT WAS THE TYPE OF ORIGINAL OBJECT AND SERIALIZER WONT BE ABLE TO GET THE STRING BACK INTO THE CORRECT TYPE,
//AS THE TYPE INFORMATION IS LOST
if (propValueSerializer.CanSerializeToString(serializationManager, contents) &&
(contentProperty.Property == null || contentProperty.Property.PropertyType != typeof(object)))
{
string stringValue = propValueSerializer.SerializeToString(serializationManager, contents);
if (!string.IsNullOrEmpty(stringValue))
{
stringValue = stringValue.Replace('\0', ' ');
if (contents is MarkupExtension || !(stringValue.StartsWith("{", StringComparison.Ordinal) && stringValue.EndsWith("}", StringComparison.Ordinal)))
writer.WriteString(stringValue);
else
writer.WriteString("{}" + stringValue);
}
}
else if (CollectionMarkupSerializer.IsValidCollectionType(contents.GetType()))
{
if (contentProperty.Property == null)
{
IEnumerable enumerableContents = contents as IEnumerable;
foreach (object childObj in enumerableContents)
{
if (childObj == null)
{
SerializeObject(serializationManager, new NullExtension(), writer);
}
else
{
object childObj2 = childObj;
bool dictionaryEntry = (childObj2 is DictionaryEntry);
try
{
if (dictionaryEntry)
{
serializationManager.WorkflowMarkupStack.Push(childObj);
childObj2 = ((DictionaryEntry)childObj2).Value;
}
childObj2 = GetMarkupExtensionFromValue(childObj2);
WorkflowMarkupSerializer childObjectSerializer = serializationManager.GetSerializer(childObj2.GetType(), typeof(WorkflowMarkupSerializer)) as WorkflowMarkupSerializer;
if (childObjectSerializer != null)
childObjectSerializer.SerializeObject(serializationManager, childObj2, writer);
else
serializationManager.ReportError(new WorkflowMarkupSerializationException(SR.GetString(SR.Error_SerializerNotAvailableForSerialize, childObj2.GetType())));
}
finally
{
if (dictionaryEntry)
serializationManager.WorkflowMarkupStack.Pop();
}
}
}
}
else
{
propValueSerializer.SerializeContents(serializationManager, contents, writer, false);
}
}
else
{
propValueSerializer.SerializeObject(serializationManager, contents, writer);
}
}
}
}
catch (Exception e)
{
serializationManager.ReportError(new WorkflowMarkupSerializationException(SR.GetString(SR.Error_SerializerThrewException, obj.GetType().FullName, e.Message), e));
return;
}
}
try
{
serializer.OnAfterSerialize(serializationManager, obj);
}
catch (Exception e)
{
serializationManager.ReportError(new WorkflowMarkupSerializationException(SR.GetString(SR.Error_SerializerThrewException, obj.GetType().FullName, e.Message), e));
return;
}
}
