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This code is derived from jgit (http://eclipse.org/jgit).
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Copyright owners are documented in jgit's IP log.
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This program and the accompanying materials are made available
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under the terms of the Eclipse Distribution License v1.0 which
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accompanies this distribution, is reproduced below, and is
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available at http://www.eclipse.org/org/documents/edl-v10.php
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Redistribution and use in source and binary forms, with or
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without modification, are permitted provided that the following
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- Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the following
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disclaimer in the documentation and/or other materials provided
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with the distribution.
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- Neither the name of the Eclipse Foundation, Inc. nor the
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names of its contributors may be used to endorse or promote
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products derived from this software without specific prior
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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using System.Collections.Generic;
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using System.Globalization;
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/// <summary>Global cache of translation bundles.</summary>
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/// Global cache of translation bundles.
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/// Every translation bundle will be cached here when it gets loaded for the
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/// first time from a thread. Another lookup for the same translation bundle
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/// (same locale and type) from the same or a different thread will return the
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/// Note that NLS instances maintain per-thread Map of loaded translation
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/// bundles. Once a thread accesses a translation bundle it will keep reference
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/// to it and will not call
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/// <see cref="LookupBundle{T}(System.Globalization.CultureInfo, System.Type{T})">LookupBundle<T>(System.Globalization.CultureInfo, System.Type<T>)
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/// same translation bundle as long as its locale doesn't change.
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internal class GlobalBundleCache
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private static readonly IDictionary<CultureInfo, IDictionary<Type, TranslationBundle
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>> cachedBundles = new Dictionary<CultureInfo, IDictionary<Type, TranslationBundle
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/// <summary>Looks up for a translation bundle in the global cache.</summary>
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/// Looks up for a translation bundle in the global cache. If found returns
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/// the cached bundle. If not found creates a new instance puts it into the
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/// cache and returns it.
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/// <param name="locale">the preferred locale</param>
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/// <param name="type">required bundle type</param>
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/// <returns>an instance of the required bundle type</returns>
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/// TranslationBundleLoadingException
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/// <see cref="TranslationBundle.Load(System.Globalization.CultureInfo)">TranslationBundle.Load(System.Globalization.CultureInfo)
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/// TranslationStringMissingException
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/// <see cref="TranslationBundle.Load(System.Globalization.CultureInfo)">TranslationBundle.Load(System.Globalization.CultureInfo)
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internal static T LookupBundle<T>(CultureInfo locale) where T:TranslationBundle
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System.Type type = typeof(T);
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lock (typeof(GlobalBundleCache))
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IDictionary<Type, TranslationBundle> bundles = cachedBundles.Get(locale);
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bundles = new Dictionary<Type, TranslationBundle>();
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cachedBundles.Put(locale, bundles);
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TranslationBundle bundle = bundles.Get(type);
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bundle = (TranslationBundle) System.Activator.CreateInstance(type);
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bundles.Put(type, bundle);
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catch (InstantiationException e)
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catch (MemberAccessException e)