libxmltv/Core/PropertyDictionary.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using libxmltv.Interfaces;
using System.Runtime.Serialization;
using System.Collections;
using System.Runtime.InteropServices;
using System.Reflection;

namespace libxmltv.Core
{

    public class PropertyCollection<T> : IPropertyCollection<T>
    {
        private List<T> items = new List<T>();
        public PropertyCollection() : this(new List<T>()) { }
        public PropertyCollection(ICollection<T> collection) { foreach (var t in collection) { items.Add(t); } }
        public int PropertyCount { get { return items.Count; } }

        public bool IsReadOnly
        {
            get
            {
                ICollection<T> collection = (items as ICollection<T>);
                if (collection == null)
                {
                    throw new InvalidCastException(string.Format("Unable to cast: '{0}' to '{1}'", items.GetType().Name, typeof(ICollection<T>).Name));
                }
                return collection.IsReadOnly;
            }
        }

        public void AddProperty(T item) { items.Add(item); }
        public void ClearProperties() { items.Clear(); }
        public bool ContainsProperty(T item) { return items.Contains(item); }
        public void CopyPropertiesTo(T[] array, int arrayIndex) { items.CopyTo(array, arrayIndex); }
        public bool RemoveProperty(T item) { return items.Remove(item); }
        public IEnumerator<T> GetEnumerator() { return items.GetEnumerator(); }
        System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() { return items.GetEnumerator(); }
    }
    public class PropertyDictionary : PropertyDictionary<string, object>, IPropertyDictionary
    {
        public PropertyDictionary() : base() { }
        public PropertyDictionary(IPropertyDictionary dictionary) : base(dictionary) { }
        public PropertyDictionary(IEqualityComparer<string> comparer) : base(comparer) { }
        public PropertyDictionary(int capacity) :base(capacity) { }
        public PropertyDictionary(IPropertyDictionary dictionary, IEqualityComparer<string> comparer) : base(dictionary, comparer) { }
        public PropertyDictionary(int capacity, IEqualityComparer<string> comparer) : base(capacity, comparer) { }
        protected PropertyDictionary(SerializationInfo info, StreamingContext context) : base(info, context) { }
    }
    public class PropertyDictionary<TKey, TValue> : IPropertyDictionary<TKey, TValue>
    {
        [StructLayout(LayoutKind.Sequential)]
        private struct Entry
        {
            public int hashCode;
            public int next;
            public TKey name;
            public TValue value;
        }
        private Entry[] entries
        {
           get{
               List<Entry> list = new List<Entry>();
               int index = 0;
               foreach (var t in properties)
               {
                   Entry entry = new Entry();
                   entry.hashCode = this.properties.Comparer.GetHashCode(t.Key) & 0x7fffffff;
                   entry.next = index + 1;
                   entry.name = t.Key;
                   entry.value = t.Value;
                   list.Add(entry);
                   index++;
               }
               return list.ToArray();
           }
        }

        private int version
        {
            get
            {
                Type t = typeof(Dictionary<TKey, TValue>);
                var field = t.GetField("version", BindingFlags.NonPublic | BindingFlags.Instance);
                var v = Convert.ToInt32(field.GetValue(properties));
                return v;
            }
        }
        private Dictionary<TKey, TValue> properties;
        public PropertyDictionary() { properties = new Dictionary<TKey, TValue>(); }
        public PropertyDictionary(IPropertyDictionary<TKey, TValue> dictionary) :this() { foreach (var d in dictionary) { properties.Add(d.Name, d.Value); } }
        public PropertyDictionary(IEqualityComparer<TKey> comparer) { properties = new Dictionary<TKey, TValue>(comparer); }
        public PropertyDictionary(int capacity) { properties = new Dictionary<TKey, TValue>(capacity); }
        public PropertyDictionary(IPropertyDictionary<TKey, TValue> dictionary, IEqualityComparer<TKey> comparer) : this(comparer) { foreach (var d in dictionary) { properties.Add(d.Name, d.Value); } }
        public PropertyDictionary(int capacity, IEqualityComparer<TKey> comparer) { properties = new Dictionary<TKey, TValue>(capacity, comparer); }
        protected PropertyDictionary(SerializationInfo info, StreamingContext context) { }
        public IPropertyCollection<TKey> PropertyKeys { get { return new PropertyCollection<TKey>(properties.Keys); } }
        public IPropertyCollection<TValue> PropertyValues { get { return new PropertyCollection<TValue>(properties.Values); } }
        public TValue this[TKey key]
        {
            get
            {
                if (this.ContainsProperty(key))
                {
                    return properties[key];
                }
                else
                {
                    throw new KeyNotFoundException(string.Format("Property '{0}' does not exist.", key));
                }
            }
            set
            {
                if (this.ContainsProperty(key))
                {
                    properties[key] = value;
                }
                else
                {
                    throw new KeyNotFoundException(string.Format("Property '{0}' does not exist.", key));
                }
            }
        }

        public void AddProperty(TKey key, TValue value) { if (properties.ContainsKey(key)) { this[key] = value; } else { properties.Add(key, value); } }
        public bool ContainsProperty(TKey key) { return properties.ContainsKey(key); }
        public bool RemoveProperty(TKey key) { return properties.Remove(key); }
        public bool TryGetPropertyValue(TKey key, out TValue value) { return properties.TryGetValue(key, out value); }
        public int PropertyCount { get { return properties.Count; } }
        public bool IsReadOnly
        {
            get
            {
                IDictionary<TKey, TValue> collection = (properties as IDictionary<TKey, TValue>);
                if (collection == null)
                {
                    throw new InvalidCastException(string.Format("Unable to cast: '{0}' to '{1}'", properties.GetType().Name, typeof(IDictionary<TKey, TValue>).Name));
                }
                return collection.IsReadOnly;
            }
        }
        public void AddProperty(IPropertyValuePair<TKey, TValue> item) { AddProperty(item.Name, item.Value); }
        public void ClearProperties() { properties.Clear(); }
        public bool ContainsProperty(IPropertyValuePair<TKey, TValue> item) { return ContainsProperty(item.Name); }
        public void CopyPropertiesTo(IPropertyValuePair<TKey, TValue>[] array, int arrayIndex) 
        {
            var list = properties.ToList().Cast<IPropertyValuePair<TKey, TValue>>().ToList();
            list.CopyTo(array, arrayIndex); 
        }
        public bool RemoveProperty(IPropertyValuePair<TKey, TValue> item) { return RemoveProperty(item.Name); }
        IEnumerator<IPropertyValuePair<TKey, TValue>> IEnumerable<IPropertyValuePair<TKey, TValue>>.GetEnumerator() { return new PropertyDictionaryEnumerator(this, 2); }
        System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() { return properties.GetEnumerator(); }

        #region enumerator support
        public class PropertyDictionaryEnumerator : IEnumerator<IPropertyValuePair<TKey, TValue>>, IDisposable
        {
            private PropertyDictionary<TKey, TValue> dictionary;
            private int index;
            private IPropertyValuePair<TKey, TValue> current;
            private int getEnumeratorRetType;
            internal const int DictEntry = 1;
            internal const int KeyValuePair = 2;
            private int version;
            public PropertyDictionaryEnumerator(PropertyDictionary<TKey, TValue> dictionary, int getEnumeratorRetType) 
            {
                this.dictionary = dictionary;
                this.version = dictionary.version;
                this.index = 0;
                this.getEnumeratorRetType = getEnumeratorRetType;
                this.current = new PropertyValuePair<TKey, TValue>();
            }

            public IPropertyValuePair<TKey, TValue> Current
            {
                get { return this.current; }
            }

            public void Dispose()
            {
            }

            object IEnumerator.Current
            {
                get
                {
                    if ((this.index == 0) || (this.index == (this.dictionary.Count() + 1)))
                    {
                        throw new InvalidOperationException("Operation can't happen");
                    }
                    if (this.getEnumeratorRetType == 1)
                    {
                        return new DictionaryEntry(this.current.Name, this.current.Value);
                    }
                    return new PropertyValuePair<TKey, TValue>(this.current.Name, this.current.Value);
                }
            }

            public bool MoveNext()
            {
                if (this.version != this.dictionary.version)
                {
                    ThrowHelper.ThrowInvalidOperationException(ExceptionResource.InvalidOperation_EnumFailedVersion);
                }
                while (this.index < this.dictionary.Count())
                {
                    if (this.dictionary.entries[this.index].hashCode >= 0)
                    {
                        this.current =(IPropertyValuePair<TKey,TValue>)(PropertyValuePair<TKey,TValue>)new KeyValuePair<TKey, TValue>(this.dictionary.entries[this.index].name, this.dictionary.entries[this.index].value);
                        this.index++;
                        return true;
                    }
                    this.index++;
                }
                this.index = this.dictionary.Count() + 1;
                this.current = new PropertyValuePair<TKey, TValue>();
                return false;
            }
            public void Reset()
            {
                if (this.version != this.dictionary.version)
                {
                    ThrowHelper.ThrowInvalidOperationException(ExceptionResource.InvalidOperation_EnumFailedVersion);
                }
                this.index = 0;
                this.current = (IPropertyValuePair<TKey, TValue>)(PropertyValuePair<TKey, TValue>)new KeyValuePair<TKey, TValue>();
            }
        }
        #endregion   
    }

   
}
1	using System;
2	using System.Collections.Generic;
3	using System.Linq;
4	using System.Text;
5	using libxmltv.Interfaces;
6	using System.Runtime.Serialization;
7	using System.Collections;
8	using System.Runtime.InteropServices;
9	using System.Reflection;
10
11	namespace libxmltv.Core
12	{
13
14	public class PropertyCollection<T> : IPropertyCollection<T>
15	{
16	private List<T> items = new List<T>();
17	public PropertyCollection() : this(new List<T>()) { }
18	public PropertyCollection(ICollection<T> collection) { foreach (var t in collection) { items.Add(t); } }
19	public int PropertyCount { get { return items.Count; } }
20
21	public bool IsReadOnly
22	{
23	get
24	{
25	ICollection<T> collection = (items as ICollection<T>);
26	if (collection == null)
27	{
28	throw new InvalidCastException(string.Format("Unable to cast: '{0}' to '{1}'", items.GetType().Name, typeof(ICollection<T>).Name));
29	}
30	return collection.IsReadOnly;
31	}
32	}
33
34	public void AddProperty(T item) { items.Add(item); }
35	public void ClearProperties() { items.Clear(); }
36	public bool ContainsProperty(T item) { return items.Contains(item); }
37	public void CopyPropertiesTo(T[] array, int arrayIndex) { items.CopyTo(array, arrayIndex); }
38	public bool RemoveProperty(T item) { return items.Remove(item); }
39	public IEnumerator<T> GetEnumerator() { return items.GetEnumerator(); }
40	System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() { return items.GetEnumerator(); }
41	}
42	public class PropertyDictionary : PropertyDictionary<string, object>, IPropertyDictionary
43	{
44	public PropertyDictionary() : base() { }
45	public PropertyDictionary(IPropertyDictionary dictionary) : base(dictionary) { }
46	public PropertyDictionary(IEqualityComparer<string> comparer) : base(comparer) { }
47	public PropertyDictionary(int capacity) :base(capacity) { }
48	public PropertyDictionary(IPropertyDictionary dictionary, IEqualityComparer<string> comparer) : base(dictionary, comparer) { }
49	public PropertyDictionary(int capacity, IEqualityComparer<string> comparer) : base(capacity, comparer) { }
50	protected PropertyDictionary(SerializationInfo info, StreamingContext context) : base(info, context) { }
51	}
52	public class PropertyDictionary<TKey, TValue> : IPropertyDictionary<TKey, TValue>
53	{
54	[StructLayout(LayoutKind.Sequential)]
55	private struct Entry
56	{
57	public int hashCode;
58	public int next;
59	public TKey name;
60	public TValue value;
61	}
62	private Entry[] entries
63	{
64	get{
65	List<Entry> list = new List<Entry>();
66	int index = 0;
67	foreach (var t in properties)
68	{
69	Entry entry = new Entry();
70	entry.hashCode = this.properties.Comparer.GetHashCode(t.Key) & 0x7fffffff;
71	entry.next = index + 1;
72	entry.name = t.Key;
73	entry.value = t.Value;
74	list.Add(entry);
75	index++;
76	}
77	return list.ToArray();
78	}
79	}
80
81	private int version
82	{
83	get
84	{
85	Type t = typeof(Dictionary<TKey, TValue>);
86	var field = t.GetField("version", BindingFlags.NonPublic \| BindingFlags.Instance);
87	var v = Convert.ToInt32(field.GetValue(properties));
88	return v;
89	}
90	}
91	private Dictionary<TKey, TValue> properties;
92	public PropertyDictionary() { properties = new Dictionary<TKey, TValue>(); }
93	public PropertyDictionary(IPropertyDictionary<TKey, TValue> dictionary) :this() { foreach (var d in dictionary) { properties.Add(d.Name, d.Value); } }
94	public PropertyDictionary(IEqualityComparer<TKey> comparer) { properties = new Dictionary<TKey, TValue>(comparer); }
95	public PropertyDictionary(int capacity) { properties = new Dictionary<TKey, TValue>(capacity); }
96	public PropertyDictionary(IPropertyDictionary<TKey, TValue> dictionary, IEqualityComparer<TKey> comparer) : this(comparer) { foreach (var d in dictionary) { properties.Add(d.Name, d.Value); } }
97	public PropertyDictionary(int capacity, IEqualityComparer<TKey> comparer) { properties = new Dictionary<TKey, TValue>(capacity, comparer); }
98	protected PropertyDictionary(SerializationInfo info, StreamingContext context) { }
99	public IPropertyCollection<TKey> PropertyKeys { get { return new PropertyCollection<TKey>(properties.Keys); } }
100	public IPropertyCollection<TValue> PropertyValues { get { return new PropertyCollection<TValue>(properties.Values); } }
101	public TValue this[TKey key]
102	{
103	get
104	{
105	if (this.ContainsProperty(key))
106	{
107	return properties[key];
108	}
109	else
110	{
111	throw new KeyNotFoundException(string.Format("Property '{0}' does not exist.", key));
112	}
113	}
114	set
115	{
116	if (this.ContainsProperty(key))
117	{
118	properties[key] = value;
119	}
120	else
121	{
122	throw new KeyNotFoundException(string.Format("Property '{0}' does not exist.", key));
123	}
124	}
125	}
126
127	public void AddProperty(TKey key, TValue value) { if (properties.ContainsKey(key)) { this[key] = value; } else { properties.Add(key, value); } }
128	public bool ContainsProperty(TKey key) { return properties.ContainsKey(key); }
129	public bool RemoveProperty(TKey key) { return properties.Remove(key); }
130	public bool TryGetPropertyValue(TKey key, out TValue value) { return properties.TryGetValue(key, out value); }
131	public int PropertyCount { get { return properties.Count; } }
132	public bool IsReadOnly
133	{
134	get
135	{
136	IDictionary<TKey, TValue> collection = (properties as IDictionary<TKey, TValue>);
137	if (collection == null)
138	{
139	throw new InvalidCastException(string.Format("Unable to cast: '{0}' to '{1}'", properties.GetType().Name, typeof(IDictionary<TKey, TValue>).Name));
140	}
141	return collection.IsReadOnly;
142	}
143	}
144	public void AddProperty(IPropertyValuePair<TKey, TValue> item) { AddProperty(item.Name, item.Value); }
145	public void ClearProperties() { properties.Clear(); }
146	public bool ContainsProperty(IPropertyValuePair<TKey, TValue> item) { return ContainsProperty(item.Name); }
147	public void CopyPropertiesTo(IPropertyValuePair<TKey, TValue>[] array, int arrayIndex)
148	{
149	var list = properties.ToList().Cast<IPropertyValuePair<TKey, TValue>>().ToList();
150	list.CopyTo(array, arrayIndex);
151	}
152	public bool RemoveProperty(IPropertyValuePair<TKey, TValue> item) { return RemoveProperty(item.Name); }
153	IEnumerator<IPropertyValuePair<TKey, TValue>> IEnumerable<IPropertyValuePair<TKey, TValue>>.GetEnumerator() { return new PropertyDictionaryEnumerator(this, 2); }
154	System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() { return properties.GetEnumerator(); }
155
156	#region enumerator support
157	public class PropertyDictionaryEnumerator : IEnumerator<IPropertyValuePair<TKey, TValue>>, IDisposable
158	{
159	private PropertyDictionary<TKey, TValue> dictionary;
160	private int index;
161	private IPropertyValuePair<TKey, TValue> current;
162	private int getEnumeratorRetType;
163	internal const int DictEntry = 1;
164	internal const int KeyValuePair = 2;
165	private int version;
166	public PropertyDictionaryEnumerator(PropertyDictionary<TKey, TValue> dictionary, int getEnumeratorRetType)
167	{
168	this.dictionary = dictionary;
169	this.version = dictionary.version;
170	this.index = 0;
171	this.getEnumeratorRetType = getEnumeratorRetType;
172	this.current = new PropertyValuePair<TKey, TValue>();
173	}
174
175	public IPropertyValuePair<TKey, TValue> Current
176	{
177	get { return this.current; }
178	}
179
180	public void Dispose()
181	{
182	}
183
184	object IEnumerator.Current
185	{
186	get
187	{
188	if ((this.index == 0) \|\| (this.index == (this.dictionary.Count() + 1)))
189	{
190	throw new InvalidOperationException("Operation can't happen");
191	}
192	if (this.getEnumeratorRetType == 1)
193	{
194	return new DictionaryEntry(this.current.Name, this.current.Value);
195	}
196	return new PropertyValuePair<TKey, TValue>(this.current.Name, this.current.Value);
197	}
198	}
199
200	public bool MoveNext()
201	{
202	if (this.version != this.dictionary.version)
203	{
204	ThrowHelper.ThrowInvalidOperationException(ExceptionResource.InvalidOperation_EnumFailedVersion);
205	}
206	while (this.index < this.dictionary.Count())
207	{
208	if (this.dictionary.entries[this.index].hashCode >= 0)
209	{
210	this.current =(IPropertyValuePair<TKey,TValue>)(PropertyValuePair<TKey,TValue>)new KeyValuePair<TKey, TValue>(this.dictionary.entries[this.index].name, this.dictionary.entries[this.index].value);
211	this.index++;
212	return true;
213	}
214	this.index++;
215	}
216	this.index = this.dictionary.Count() + 1;
217	this.current = new PropertyValuePair<TKey, TValue>();
218	return false;
219	}
220	public void Reset()
221	{
222	if (this.version != this.dictionary.version)
223	{
224	ThrowHelper.ThrowInvalidOperationException(ExceptionResource.InvalidOperation_EnumFailedVersion);
225	}
226	this.index = 0;
227	this.current = (IPropertyValuePair<TKey, TValue>)(PropertyValuePair<TKey, TValue>)new KeyValuePair<TKey, TValue>();
228	}
229	}
230	#endregion
231	}
232
233
234	}