/// <summary>
/// Checks to see if a Object has a writable property/field be a given name
/// </summary>
/// <param name="obj"> The object to check</param>
/// <param name="propertyName">The property to check for</param>
/// <returns>True if the property exists and is writable</returns>
public static bool HasWritableProperty(object obj, string propertyName)
{
bool hasProperty = false;
if (obj is IDictionary)
{
hasProperty = ((IDictionary)obj).Contains(propertyName);
}
else
{
if (propertyName.IndexOf('.') > -1)
{
StringTokenizer parser = new StringTokenizer(propertyName, ".");
IEnumerator enumerator = parser.GetEnumerator();
Type type = obj.GetType();
while (enumerator.MoveNext())
{
propertyName = (string)enumerator.Current;
type = ReflectionInfo.GetInstance(type).GetGetterType(propertyName);
hasProperty = ReflectionInfo.GetInstance(type).HasWritableMember(propertyName);
}
}
else
{
hasProperty = ReflectionInfo.GetInstance(obj.GetType()).HasWritableMember(propertyName);
}
}
return hasProperty;
}
/// <summary>
/// Sets the member value.
/// </summary>
/// <param name="obj">he Object on which to invoke the specified mmber.</param>
/// <param name="memberName">Name of the member.</param>
/// <param name="memberValue">The member value.</param>
/// <param name="objectFactory">The object factory.</param>
/// <param name="accessorFactory">The accessor factory.</param>
public static void SetMemberValue(object obj, string memberName, object memberValue, IObjectFactory objectFactory, AccessorFactory accessorFactory)
{
if (memberName.IndexOf('.') > -1)
{
StringTokenizer parser = new StringTokenizer(memberName, ".");
IEnumerator enumerator = parser.GetEnumerator();
enumerator.MoveNext();
string currentPropertyName = (string)enumerator.Current;
object child = obj;
while (enumerator.MoveNext())
{
Type type = GetMemberTypeForSetter(child, currentPropertyName);
object parent = child;
child = GetMember(parent, currentPropertyName, accessorFactory);
if (child == null)
{
try
{
IFactory factory = objectFactory.CreateFactory(type, Type.EmptyTypes);
child = factory.CreateInstance(Type.EmptyTypes);
SetMemberValue(parent, currentPropertyName, child, objectFactory, accessorFactory);
}
catch (Exception e)
{
throw new ProbeException("Cannot set value of property '" + memberName + "' because '" + currentPropertyName + "' is null and cannot be instantiated on instance of " + type.Name + ". Cause:" + e.Message, e);
}
}
currentPropertyName = (string)enumerator.Current;
}
SetMember(child, currentPropertyName, memberValue, accessorFactory);
}
else
{
SetMember(obj, memberName, memberValue, accessorFactory);
}
}
/// <summary>
/// Return the specified member on an object.
/// </summary>
/// <param name="obj">The Object on which to invoke the specified property.</param>
/// <param name="memberName">Name of the member.</param>
/// <param name="accessorFactory">The accessor factory.</param>
/// <returns>An Object representing the return value of the invoked property.</returns>
public static object GetMemberValue(object obj, string memberName, AccessorFactory accessorFactory)
{
if (memberName.IndexOf('.') > -1)
{
StringTokenizer parser = new StringTokenizer(memberName, ".");
IEnumerator enumerator = parser.GetEnumerator();
object value = obj;
string token = null;
while (enumerator.MoveNext())
{
token = (string)enumerator.Current;
value = GetMember(value, token, accessorFactory);
if (value == null)
{
break;
}
}
return value;
}
else
{
return GetMember(obj, memberName, accessorFactory);
}
}
/// <summary>
/// Returns the type that the set expects to receive as a parameter when
/// setting a member value.
/// </summary>
/// <param name="type">The class type to check</param>
/// <param name="memberName">The name of the member</param>
/// <returns>The type of the member</returns>
public static Type GetMemberTypeForSetter(Type type, string memberName)
{
Type memberType = type;
if (memberName.IndexOf('.') > -1)
{
StringTokenizer parser = new StringTokenizer(memberName, ".");
IEnumerator enumerator = parser.GetEnumerator();
while (enumerator.MoveNext())
{
memberName = (string)enumerator.Current;
memberType = ReflectionInfo.GetInstance(memberType).GetSetterType(memberName);
}
}
else
{
memberType = ReflectionInfo.GetInstance(type).GetSetterType(memberName);
}
return memberType;
}
/// <summary>
/// Returns the type that the set expects to receive as a parameter when
/// setting a member value.
/// </summary>
/// <param name="obj">The object to check</param>
/// <param name="memberName">The name of the member</param>
/// <returns>The type of the member</returns>
public static Type GetMemberTypeForSetter(object obj, string memberName)
{
Type type = obj.GetType();
if (obj is IDictionary)
{
IDictionary map = (IDictionary)obj;
object value = map[memberName];
if (value == null)
{
type = typeof(object);
}
else
{
type = value.GetType();
}
}
else
{
if (memberName.IndexOf('.') > -1)
{
StringTokenizer parser = new StringTokenizer(memberName, ".");
IEnumerator enumerator = parser.GetEnumerator();
while (enumerator.MoveNext())
{
memberName = (string)enumerator.Current;
type = ReflectionInfo.GetInstance(type).GetSetterType(memberName);
}
}
else
{
type = ReflectionInfo.GetInstance(type).GetSetterType(memberName);
}
}
return type;
}
/// <summary>
/// Returns the MemberInfo of the set member on the specified type.
/// </summary>
/// <param name="type">The type to check</param>
/// <param name="memberName">The name of the member</param>
/// <returns>The type of the member</returns>
public static MemberInfo GetMemberInfoForSetter(Type type, string memberName)
{
MemberInfo memberInfo = null;
if (memberName.IndexOf('.') > -1)
{
StringTokenizer parser = new StringTokenizer(memberName, ".");
IEnumerator enumerator = parser.GetEnumerator();
Type parentType = null;
while (enumerator.MoveNext())
{
memberName = (string)enumerator.Current;
parentType = type;
type = ReflectionInfo.GetInstance(type).GetSetterType(memberName);
}
memberInfo = ReflectionInfo.GetInstance(parentType).GetSetterMethod(memberName);
}
else
{
memberInfo = ReflectionInfo.GetInstance(type).GetSetterMethod(memberName);
}
return memberInfo;
}
public StringTokenizerEnumerator(StringTokenizer stok)
{
_stokenizer = stok;
}
