/source/library/Interlace/PropertyLists/PropertyDictionary.cs

#region Using Directives and Copyright Notice



// Copyright (c) 2007-2010, Computer Consultancy Pty Ltd

// All rights reserved.

// 

// Redistribution and use in source and binary forms, with or without

// modification, are permitted provided that the following conditions are met:

//     * Redistributions of source code must retain the above copyright

//       notice, this list of conditions and the following disclaimer.

//     * Redistributions in binary form must reproduce the above copyright

//       notice, this list of conditions and the following disclaimer in the

//       documentation and/or other materials provided with the distribution.

//     * Neither the name of the Computer Consultancy Pty Ltd nor the

//       names of its contributors may be used to endorse or promote products

//       derived from this software without specific prior written permission.

// 

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 

// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 

// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 

// ARE DISCLAIMED. IN NO EVENT SHALL COMPUTER CONSULTANCY PTY LTD BE LIABLE 

// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 

// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 

// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 

// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 

// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 

// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH

// DAMAGE.



using System;

using System.Collections;

using System.Collections.Generic;

using System.IO;

using System.Reflection;

using System.Text;



#endregion



namespace Interlace.PropertyLists

{

    [Serializable]

    public class PropertyDictionary : IEnumerable

    {

        Dictionary<object, object> _dictionary;



        internal PropertyDictionary()

        {

            _dictionary = new Dictionary<object, object>();

        }



        public static PropertyDictionary FromFileInExecutableDirectory(string relativePath)

        {

            string path = Path.Combine(

                Path.GetDirectoryName(Assembly.GetCallingAssembly().Location), relativePath);



            return FromFile(path);

        }



        public static PropertyDictionary FromStream(Stream stream, string nameForExceptions)

        {

            if (stream.Length > 0)

            {

                using (TextReader reader = new StreamReader(stream))

                {

                    return FromReader(reader, nameForExceptions);

                }

            }

            else

            {

                return PropertyDictionary.EmptyDictionary();

            }

        }



        public static PropertyDictionary FromReader(TextReader reader, string nameForExceptions)

        {

            Lexer lexer = new Lexer(reader, nameForExceptions);

            return Parser.Parse(lexer) as PropertyDictionary;

        }



        public static PropertyDictionary FromStream(Stream stream)

        {

            return PropertyDictionary.FromStream(stream, "unnamed stream");

        }



        public static PropertyDictionary FromReader(TextReader reader)

        {

            return PropertyDictionary.FromReader(reader, "unnamed stream");

        }



        public static PropertyDictionary FromFile(string path)

        {

            if (!File.Exists(path)) return null;



            using (StreamReader reader = new StreamReader(path))

            {

                return PropertyDictionary.FromReader(reader, path);

            }

        }



        public static PropertyDictionary FromString(string text)

        {

            if (string.IsNullOrEmpty(text)) return PropertyDictionary.EmptyDictionary();



            using (MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes(text)))

            {

                using (StreamReader reader = new StreamReader(stream))

                {

                    return PropertyDictionary.FromReader(reader, "text string");

                }

            }

        }



        public static PropertyDictionary EmptyDictionary()

        {

            return new PropertyDictionary();

        }



        public void PersistToFileInExecutableDirectory(string relativePath)

        {

            string path = Path.Combine(

                Path.GetDirectoryName(Assembly.GetCallingAssembly().Location), relativePath);



            PersistToFile(path);

        }



        public void PersistToFile(string path)

        {

            FileStream file = File.Open(path, FileMode.Create);



            byte[] bytes = Encoding.ASCII.GetBytes(GetPersistString());

            file.Write(bytes, 0, bytes.Length);



            file.Close();

        }



        public void PersistToStream(Stream stream)

        {

            byte[] bytes = Encoding.ASCII.GetBytes(GetPersistString());



            stream.Write(bytes, 0, bytes.Length);

        }



        string GetPersistString()

        {

            Writer writer = new Writer();

            writer.WriteDictionary(this);

            return writer.ToString();

        }



        public byte[] PersistToByteArray()

        {

            return Encoding.ASCII.GetBytes(GetPersistString());

        }



        public string PersistToString()

        {

            return GetPersistString();

        }



        private string AppendIndent(string value, int indentLevel)

        {

            for (int i = 0; i < indentLevel; ++i)

                value += "\t";



            return value;

        }



        public bool HasValueFor(params object[] keys)

        {

            foreach (object key in keys)

            {

                if (!_dictionary.ContainsKey(key)) return false;

            }



            return true;

        }



        public bool HasStringFor(params object[] keys)

        {

            foreach (object key in keys)

            {

                if (!_dictionary.ContainsKey(key) || !(_dictionary[key] is string)) return false;

            }



            return true;

        }



        public bool HasIntegerFor(params object[] keys)

        {

            foreach (object key in keys)

            {

                if (!_dictionary.ContainsKey(key) || !(_dictionary[key] is int)) return false;

            }



            return true;

        }



        public bool HasDoubleFor(params object[] keys)

        {

            foreach (object key in keys)

            {

                if (!_dictionary.ContainsKey(key) || !(_dictionary[key] is double || _dictionary[key] is int)) return false;

            }



            return true;

        }



        public bool HasDictionaryFor(params object[] keys)

        {

            foreach (object key in keys)

            {

                if (!_dictionary.ContainsKey(key) || !(_dictionary[key] is PropertyDictionary)) return false;

            }



            return true;

        }



        public bool HasArrayFor(params object[] keys)

        {

            foreach (object key in keys)

            {

                if (!_dictionary.ContainsKey(key) || !(_dictionary[key] is PropertyArray)) return false;

            }



            return true;

        }



        public object ValueFor(object key)

        {

            if (_dictionary.ContainsKey(key))

            {

                return _dictionary[key];

            }

            else

            {

                return null;

            }

        }



        public object ValueFor(object key, object defaultValue)

        {

            if (_dictionary.ContainsKey(key))

            {

                return _dictionary[key];

            }

            else

            {

                return defaultValue;

            }

        }



        public string StringFor(object key)

        {

            return ValueFor(key) as string;

        }



        public string StringFor(object key, string defaultValue)

        {

            string value = ValueFor(key) as string;



            return value != null ? value : defaultValue;

        }



        public int? IntegerFor(object key)

        {

            return ValueFor(key) as int?;

        }



        public double? DoubleFor(object key)

        {

            object value = ValueFor(key);



            if (value is int) return (double)(int)value;



            return value as double?;

        }



        public int IntegerFor(object key, int defaultValue)

        {

            int? value = ValueFor(key) as int?;



            return value != null ? (int)value : defaultValue;

        }



        public bool? BooleanFor(object key)

        {

            return ValueFor(key) as bool?;

        }



        public bool BooleanFor(object key, bool defaultValue)

        {

            bool? value = ValueFor(key) as bool?;



            return value != null ? (bool)value : defaultValue;

        }



        public byte[] DataFor(object key)

        {

            return ValueFor(key) as byte[];

        }



        public byte[] DataFor(object key, byte[] defaultValue)

        {

            byte[] value = ValueFor(key) as byte[];



            return value != null ? (byte[])value : defaultValue;

        }



        public PropertyArray ArrayFor(object key)

        {

            return ValueFor(key) as PropertyArray;

        }



        public PropertyDictionary DictionaryFor(object key)

        {

            return ValueFor(key) as PropertyDictionary;

        }



        public void SetValueFor(object key, object value)

        {

            _dictionary[key] = value;

        }



        public object[] Keys

        {

            get

            {

                object[] array = new object[_dictionary.Count];



                _dictionary.Keys.CopyTo(array, 0);



                return array;

            }

        }



        public object this[object key]

        {

            get { return _dictionary[key]; }

            set { _dictionary[key] = value; }

        }



        #region IEnumerable Members



        public IEnumerator GetEnumerator()

        {

            return _dictionary.GetEnumerator();

        }



        #endregion

    }

}