/// <summary>
/// Determines whether the specified <see cref="T:System.Object"/> is equal to the current <see cref="T:System.Object"/>.
/// </summary>
/// <param name="obj">The <see cref="T:System.Object"/> to compare with the current <see cref="T:System.Object"/>.</param>
/// <returns>
/// true if the specified <see cref="T:System.Object"/> is equal to the current <see cref="T:System.Object"/>; otherwise, false.
/// </returns>
/// <exception cref="T:System.NullReferenceException">
/// The <paramref name="obj"/> parameter is null.
/// </exception>
public override bool Equals(object obj)
{
RmAttributeValue other = obj as RmAttributeValue;
if (other == null)
{
return(false);
}
lock (this.attributeValues) {
lock (other.attributeValues) {
if (this.attributeValues.Count != other.attributeValues.Count)
{
return(false);
}
this.attributeValues.Sort();
other.attributeValues.Sort();
for (int i = 0; i < this.attributeValues.Count; i++)
{
if (this.attributeValues[i].Equals(other.attributeValues[i]) == false)
{
return(false);
}
}
}
}
return(true);
}
/// <summary>
/// Starts tracking changes in the underlying <see cref="RmResource"/>.
/// </summary>
public void BeginChanges()
{
EnsureNotDisposed();
lock (rmObject.attributes) {
this.originalAttributes = new Dictionary <RmAttributeName, RmAttributeValue>();
foreach (RmAttributeName key in rmObject.attributes.Keys)
{
RmAttributeValue value = rmObject.attributes[key];
this.originalAttributes[key] = value.Clone() as RmAttributeValue;
}
}
}
/// <summary>
/// Return a string with the value of the attribute whose name is passed
/// as format.
/// If the attribute is multi valued, returns a string with the
/// concatenation of the values separated by ';'
/// </summary>
/// <example>
/// obj.ToString("DisplayName") -> returns DisplayName of the object.
/// string.Format("{0:DisplayName}",obj) -> returns DisplayName of the object.
/// </example>
public string ToString(
string format,
IFormatProvider formatProvider)
{
if (string.IsNullOrEmpty(format))
{
return(this.ToString());
}
RmAttributeName key = new RmAttributeName(format);
if (!attributes.ContainsKey(key))
{
return(string.Empty);
}
RmAttributeValue value = attributes[key];
if (value.IsMultiValue)
{
// make an array of string values
string[] values = value.Values.ConvertAll <string>(x => GetString(x)).ToArray();
return(string.Join("; ", values));
}
return(GetString(value.Value));
}
/// <summary>
/// Creates a new object that is a copy of the current instance.
/// </summary>
/// <returns>
/// A new object that is a copy of this instance.
/// </returns>
public object Clone()
{
RmAttributeValue newValue = new RmAttributeValue(IsMultiValue);
newValue.attributeValues = new List <IComparable>();
foreach (IComparable value in this.attributeValues)
{
ICloneable cloneValue = value as ICloneable;
if (cloneValue == null)
{
newValue.attributeValues.Add(value);
}
else
{
IComparable cloneInsert = cloneValue.Clone() as IComparable;
if (cloneInsert == null)
{
throw new InvalidOperationException("A comparable, when cloned, returned a non-comparable: " + cloneValue.ToString());
}
newValue.attributeValues.Add(cloneInsert);
}
}
return(newValue);
}
/// <summary>
/// Gets the differences from source and destination attributes.
/// </summary>
/// <param name="sourceAttributes">The source attributes.</param>
/// <param name="destinationAttributes">The destination attributes.</param>
/// <returns></returns>
private static IList <RmAttributeChange> GetDifference(
Dictionary <RmAttributeName, RmAttributeValue> sourceAttributes,
Dictionary <RmAttributeName, RmAttributeValue> destinationAttributes)
{
IList <RmAttributeChange> changedAttributes = new List <RmAttributeChange>();
// iterate source attributes
foreach (KeyValuePair <RmAttributeName, RmAttributeValue> sourceItem in sourceAttributes)
{
RmAttributeName sourceName = sourceItem.Key;
RmAttributeValue sourceValue = sourceItem.Value;
if (!destinationAttributes.ContainsKey(sourceName))
{
// the destination does not contain the attribute
if (sourceValue.IsMultiValue)
{
// add all the values
foreach (IComparable value1 in sourceValue.Values)
{
changedAttributes.Add(new RmAttributeChange(sourceName, value1, RmAttributeChangeOperation.Add));
}
}
else
{
changedAttributes.Add(new RmAttributeChange(sourceItem.Key, null, RmAttributeChangeOperation.Replace));
}
}
else
{
// the destination contains the attribute
RmAttributeValue destinationValue = destinationAttributes[sourceItem.Key];
if (sourceValue.IsMultiValue)
{
foreach (IComparable value1 in sourceValue.Values)
{
if (destinationValue.Values.Contains(value1) == false)
{
changedAttributes.Add(new RmAttributeChange(sourceItem.Key, value1, RmAttributeChangeOperation.Add));
}
}
foreach (IComparable value2 in destinationValue.Values)
{
if (sourceItem.Value.Values.Contains(value2) == false)
{
changedAttributes.Add(new RmAttributeChange(sourceItem.Key, value2, RmAttributeChangeOperation.Delete));
}
}
}
else
{
if (destinationValue.Value != sourceValue.Value)
{
changedAttributes.Add(new RmAttributeChange(sourceItem.Key, sourceValue.Value, RmAttributeChangeOperation.Replace));
}
}
}
}
// iterate destination attributes
foreach (KeyValuePair <RmAttributeName, RmAttributeValue> destinationItem in destinationAttributes)
{
if (sourceAttributes.ContainsKey(destinationItem.Key) == false)
{
foreach (IComparable value2 in destinationItem.Value.Values)
{
changedAttributes.Add(new RmAttributeChange(destinationItem.Key, value2, RmAttributeChangeOperation.Delete));
}
}
}
return(changedAttributes);
}
/// <summary>
/// Creates a new object that is a copy of the current instance.
/// </summary>
/// <returns>
/// A new object that is a copy of this instance.
/// </returns>
public object Clone()
{
RmAttributeValue newValue = new RmAttributeValue(IsMultiValue);
newValue.attributeValues = new List<IComparable>();
foreach (IComparable value in this.attributeValues) {
ICloneable cloneValue = value as ICloneable;
if (cloneValue == null) {
newValue.attributeValues.Add(value);
} else {
IComparable cloneInsert = cloneValue.Clone() as IComparable;
if (cloneInsert == null)
throw new InvalidOperationException("A comparable, when cloned, returned a non-comparable: " + cloneValue.ToString());
newValue.attributeValues.Add(cloneInsert);
}
}
return newValue;
}
/// <summary>
/// Gets the differences from source and destination attributes.
/// </summary>
/// <param name="sourceAttributes">The source attributes.</param>
/// <param name="destinationAttributes">The destination attributes.</param>
/// <returns></returns>
private static IList <RmAttributeChange> GetDifference(
Dictionary <RmAttributeName, RmAttributeValue> sourceAttributes,
Dictionary <RmAttributeName, RmAttributeValue> destinationAttributes)
{
IList <RmAttributeChange> changedAttributes = new List <RmAttributeChange>();
// iterate source attributes
foreach (KeyValuePair <RmAttributeName, RmAttributeValue> sourceItem in sourceAttributes)
{
RmAttributeName sourceName = sourceItem.Key;
RmAttributeValue sourceValue = sourceItem.Value;
if (!destinationAttributes.ContainsKey(sourceName))
{
// the destination does not contain the attribute
if (sourceValue.IsMultiValue)
{
// add all the values
foreach (IComparable value1 in sourceValue.Values)
{
changedAttributes.Add(new RmAttributeChange(sourceName, value1, RmAttributeChangeOperation.Add));
}
}
else
{
changedAttributes.Add(new RmAttributeChange(sourceItem.Key, null, RmAttributeChangeOperation.Replace));
}
}
else
{
// the destination contains the attribute
RmAttributeValue destinationValue = destinationAttributes[sourceItem.Key];
if (sourceValue.IsMultiValue)
{
foreach (IComparable value1 in sourceValue.Values)
{
if (destinationValue.Values.Contains(value1) == false)
{
changedAttributes.Add(new RmAttributeChange(sourceItem.Key, value1, RmAttributeChangeOperation.Add));
}
}
foreach (IComparable value2 in destinationValue.Values)
{
if (sourceItem.Value.Values.Contains(value2) == false)
{
changedAttributes.Add(new RmAttributeChange(sourceItem.Key, value2, RmAttributeChangeOperation.Delete));
}
}
}
else
{
if (destinationValue.Value != sourceValue.Value)
{
RmAttributeChangeOperation operation;
if (
(
// <[MA] change 24-11-2011> - cleared reference attributes require Delete operation
destinationValue.Value is RmReference
||
// <[MA] change 05-03-2012> - cleared date attributes require Delete operation
destinationValue.Value is DateTime?
) &&
sourceValue.Value == null
)
{
operation = RmAttributeChangeOperation.Delete;
}
else
{
operation = RmAttributeChangeOperation.Replace;
}
changedAttributes.Add(new RmAttributeChange(sourceItem.Key, sourceValue.Value, operation));
// </[MA]>
}
}
}
}
// iterate destination attributes
foreach (KeyValuePair <RmAttributeName, RmAttributeValue> destinationItem in destinationAttributes)
{
if (sourceAttributes.ContainsKey(destinationItem.Key) == false)
{
foreach (IComparable value2 in destinationItem.Value.Values)
{
changedAttributes.Add(new RmAttributeChange(destinationItem.Key, value2, RmAttributeChangeOperation.Delete));
}
}
}
return(changedAttributes);
}
