/Atlassian.Jira/ComparableString.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace Atlassian.Jira

{

    /// <summary>

    /// Type that wraps a string and exposes opertor overloads for

    /// easier LINQ queries

    /// </summary>

    /// <remarks>

    /// Allows comparisons in the form of issue.Key > "TST-1"

    /// </remarks>

    public class ComparableString

    {

        private const string JIRA_DATE_FORMAT_STRING = "yyyy/MM/dd";



        public string Value { get; set; }



        public ComparableString(string value)

        {

            this.Value = value;

        }



        public static implicit operator ComparableString(string value)

        {

            if (value != null)

            {

                return new ComparableString(value);

            }

            else

            {

                return null;

            }

        }



        public static bool operator ==(ComparableString field, string value)

        {

            if ((object) field == null)

            {

                return value == null;

            }

            else

            {

                return field.Value == value;

            }

        }



        public static bool operator !=(ComparableString field, string value)

        {

            if ((object) field == null)

            {

                return value != null;

            }

            else

            {

                return field.Value != value;

            }

        }



        public static bool operator >(ComparableString field, string value)

        {

            return field.Value.CompareTo(value) > 0;

        }



        public static bool operator <(ComparableString field, string value)

        {

            return field.Value.CompareTo(value) < 0;

        }



        public static bool operator <=(ComparableString field, string value)

        {

            return field.Value.CompareTo(value) <= 0;

        }



        public static bool operator >=(ComparableString field, string value)

        {

            return field.Value.CompareTo(value) >= 0;

        }



        public static bool operator ==(ComparableString field, DateTime value)

        {

            if ((object)field == null)

            {

                return value == null;

            }

            else

            {

                return field.Value == value.ToString(JIRA_DATE_FORMAT_STRING);

            }

        }



        public static bool operator !=(ComparableString field, DateTime value)

        {

            if ((object)field == null)

            {

                return value != null;

            }

            else

            {

                return field.Value != value.ToString(JIRA_DATE_FORMAT_STRING);

            }

        }



        public static bool operator >(ComparableString field, DateTime value)

        {

            return field.Value.CompareTo(value.ToString(JIRA_DATE_FORMAT_STRING)) > 0;

        }



        public static bool operator <(ComparableString field, DateTime value)

        {

            return field.Value.CompareTo(value.ToString(JIRA_DATE_FORMAT_STRING)) < 0;

        }



        public static bool operator <=(ComparableString field, DateTime value)

        {

            return field.Value.CompareTo(value.ToString(JIRA_DATE_FORMAT_STRING)) <= 0;

        }



        public static bool operator >=(ComparableString field, DateTime value)

        {

            return field.Value.CompareTo(value.ToString(JIRA_DATE_FORMAT_STRING)) >= 0;

        }



        public override string ToString()

        {

            return this.Value;

        }



        public override bool Equals(object obj)

        {

            if (obj is ComparableString)

            {

                return this.Value.Equals(((ComparableString)obj).Value);

            }

            else if (obj is string)

            {

                return this.Value.Equals((string)obj);

            }



            return base.Equals(obj);

        }

    }

}