/// <summary>
/// Compares the current instance with another object of the same type.
/// </summary>
/// <param name="obj">An object to compare with this instance.</param>
/// <returns>A 32-bit signed integer that indicates the relative order of the objects being compared.</returns>
/// <exception cref="ArgumentException">The <paramref name="obj"/> is not the expected <see cref="Type"/>.</exception>
public int CompareTo(object obj)
{
if (obj == null)
{
return(1);
}
AtomSource value = obj as AtomSource;
if (value != null)
{
int result = AtomFeed.CompareSequence(this.Authors, value.Authors);
result = result | AtomFeed.CompareSequence(this.Categories, value.Categories);
result = result | AtomFeed.CompareSequence(this.Contributors, value.Contributors);
if (this.Generator != null)
{
result = result | this.Generator.CompareTo(value.Generator);
}
else if (value.Generator != null)
{
result = result | -1;
}
if (this.Icon != null)
{
result = result | this.Icon.CompareTo(value.Icon);
}
else if (value.Icon != null)
{
result = result | -1;
}
if (this.Id != null)
{
result = result | this.Id.CompareTo(value.Id);
}
else if (value.Id != null)
{
result = result | -1;
}
result = result | AtomFeed.CompareSequence(this.Links, value.Links);
if (this.Logo != null)
{
result = result | this.Logo.CompareTo(value.Logo);
}
else if (value.Logo != null)
{
result = result | -1;
}
if (this.Rights != null)
{
result = result | this.Rights.CompareTo(value.Rights);
}
else if (value.Rights != null)
{
result = result | -1;
}
if (this.Subtitle != null)
{
result = result | this.Subtitle.CompareTo(value.Subtitle);
}
else if (value.Subtitle != null)
{
result = result | -1;
}
if (this.Title != null)
{
result = result | this.Title.CompareTo(value.Title);
}
else if (value.Title != null)
{
result = result | -1;
}
result = result | this.UpdatedOn.CompareTo(value.UpdatedOn);
result = result | AtomUtility.CompareCommonObjectAttributes(this, value);
return(result);
}
else
{
throw new ArgumentException(String.Format(null, "obj is not of type {0}, type was found to be '{1}'.", this.GetType().FullName, obj.GetType().FullName), "obj");
}
}