_Core/Utilities/Attributes.cs

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/*
 * Author: Kishore Reddy
 * Url: http://commonlibrarynet.codeplex.com/
 * Title: CommonLibrary.NET
 * Copyright: � 2009 Kishore Reddy
 * License: LGPL License
 * LicenseUrl: http://commonlibrarynet.codeplex.com/license
 * Description: A C# based .NET 3.5 Open-Source collection of reusable components.
 * Usage: Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
using System;
using System.Collections.Generic;
using System.Text;
using System.Reflection;


namespace ComLib
{
    /// <summary>
    /// Reflection utility class for attributes.
    /// </summary>
    public class Attributes
    {
        /// <summary>
        /// Get the description attribute from the assembly associated with <paramref name="type"/>.
        /// </summary>
        /// <param name="type">The type who's assembly's description should be obtained.</param>
        /// <param name="defaultVal">Default value to use if description is not available.</param>
        /// <returns>Assembly info description.</returns>
        public static string GetAssemblyInfoDescription(Type type, string defaultVal)
        {
            // Get the assembly object.
            Assembly assembly = type.Assembly;

            // See if the Assembly Description is defined.
            bool isDefined = Attribute.IsDefined(assembly, typeof(AssemblyDescriptionAttribute));
            string description = defaultVal;

            if (isDefined)
            {
                AssemblyDescriptionAttribute adAttr = (AssemblyDescriptionAttribute)Attribute.GetCustomAttribute(assembly, 
                    typeof(AssemblyDescriptionAttribute));

                if (adAttr != null) description = adAttr.Description;
            }
            return description;

        }


        /// <summary>
        /// Gets the attributes of the specified type applied to the class.
        /// </summary>
        /// <typeparam name="T">Type of attributes.</typeparam>
        /// <param name="obj">The obj.</param>
        /// <returns>List of attributes from the specified object.</returns>