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Viewing changes to lib/ServiceStack/src/ServiceStack.Common/DictionaryExtensions.cs

  • Committer: Package Import Robot
  • Author(s): Mirco Bauer
  • Date: 2013-05-25 22:11:31 UTC
  • mfrom: (1.2.12)
  • Revision ID: package-import@ubuntu.com-20130525221131-nd2mc0kzubuwyx20
Tags: 0.8.11-1
* [22d13d5] Imported Upstream version 0.8.11
* [6d2b95a] Refreshed patches
* [89eb66e] Added ServiceStack libraries to smuxi-engine package
* [848ab10] Enable Campfire engine
* [c6dbdc7] Always build db4o for predictable build result
* [13ec489] Exclude OS X specific libraries from dh_clideps

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lib/ServiceStack/src/ServiceStack.Common/DictionaryExtensions.cs
 
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using System;
 
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using System.Collections.Generic;
 
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using ServiceStack.Common.Extensions;
 
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namespace ServiceStack.Common
 
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{
 
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    public static class DictionaryExtensions
 
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    {
 
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        public static TValue GetValueOrDefault<TValue, TKey>(this Dictionary<TKey, TValue> dictionary, TKey key)
 
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        {
 
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            return dictionary.ContainsKey(key) ? dictionary[key] : default(TValue);
 
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        }
 
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        public static void ForEach<TKey, TValue>(this Dictionary<TKey, TValue> dictionary, Action<TKey, TValue> onEachFn)
 
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        {
 
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            foreach (var entry in dictionary)
 
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            {
 
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                onEachFn(entry.Key, entry.Value);
 
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            }
 
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        }
 
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        public static bool EquivalentTo<K, V>(this IDictionary<K, V> thisMap, IDictionary<K, V> otherMap)
 
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        {
 
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            if (thisMap == null || otherMap == null) return thisMap == otherMap;
 
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            if (thisMap.Count != otherMap.Count) return false;
 
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            foreach (var entry in thisMap)
 
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            {
 
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                V otherValue;
 
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                if (!otherMap.TryGetValue(entry.Key, out otherValue)) return false;
 
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                if (!Equals(entry.Value, otherValue)) return false;
 
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            }
 
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            return true;
 
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        }
 
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        public static List<T> ConvertAll<T, K, V>(IDictionary<K, V> map, Func<K, V, T> createFn)
 
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        {
 
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            var list = new List<T>();
 
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            map.ForEach((kvp) => list.Add(createFn(kvp.Key, kvp.Value)));
 
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            return list;
 
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        }
 
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        public static V GetOrAdd<K, V>(this Dictionary<K, V> map, K key, Func<K,V> createFn)
 
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        {
 
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            //simulate ConcurrentDictionary.GetOrAdd
 
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            lock (map)
 
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            {
 
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                V val;
 
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                if (!map.TryGetValue(key, out val))
 
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                    map[key] = val = createFn(key);
 
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                return val;
 
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            }
 
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        }
 
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    }
 
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}
 
 
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