File: GenerationContext.cs

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#region MIT license
// 
// MIT license
//
// Copyright (c) 2007-2008 Jiri Moudry, Pascal Craponne
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// 
#endregion
using System;
using System.Collections.Generic;
using System.Linq;
using DbLinq.Schema.Dbml;
using DbLinq.Schema.Dbml.Adapter;
using DbLinq.Vendor;
using DbMetal;
using DbMetal.Generator.EntityInterface;
using DbMetal.Generator.EntityInterface.Implementation;
using DbMetal.Utility;

namespace DbMetal.Generator
{
#if !MONO_STRICT
    public
#endif
    class GenerationContext
    {
        public class ExtendedTypeAndName
        {
            public Table Table;
            public INamedType Type;
        }

        public Parameters Parameters;
        public IDictionary<string, string> Variables;
        public ISchemaLoader SchemaLoader;
        public IDictionary<Column, ExtendedTypeAndName> ExtendedTypes;

        public List<IImplementation> AllImplementations = new List<IImplementation>();

        public string this[string key]
        {
            get { return Variables[key]; }
            set { Variables[key] = value; }
        }

        public GenerationContext(Parameters parameters, ISchemaLoader schemaLoader)
        {
            Parameters = parameters;
            Variables = new Dictionary<string, string>();
            SchemaLoader = schemaLoader;
            ExtendedTypes = new Dictionary<Column, ExtendedTypeAndName>();
            AllImplementations.Add(new IModifiedImplementation());
            AllImplementations.Add(new INotifyPropertyChangingImplementation());
            AllImplementations.Add(new INotifyPropertyChangedImplementation());
        }

        private GenerationContext(GenerationContext original)
        {
            Parameters = original.Parameters;
            Variables = new Dictionary<string, string>(original.Variables);
            SchemaLoader = original.SchemaLoader;
            ExtendedTypes = new Dictionary<Column, ExtendedTypeAndName>(original.ExtendedTypes);
            AllImplementations = new List<IImplementation>(original.AllImplementations);
        }

        public GenerationContext CopyContext()
        {
            return new GenerationContext(this);
        }

        public string Evaluate(string format)
        {
            return Variables.Evaluate(format);
        }

        /// <summary>
        /// Returns all known interface handler that apply to our current interfaces
        /// </summary>
        /// <returns></returns>
        public IEnumerable<IImplementation> Implementations()
        {
            foreach (IImplementation implementation in AllImplementations)
            {
                if (Array.Exists(Parameters.EntityInterfaces, interfaceName => implementation.InterfaceName == interfaceName))
                    yield return implementation;
            }
        }
    }
}