[1454] | 1 | using System;
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| 2 | using System.Collections;
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| 3 | using HeuristicLab.Persistence.Core;
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| 4 | using HeuristicLab.Persistence.Interfaces;
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| 5 | using System.Collections.Generic;
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[1823] | 6 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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[1705] | 7 | using HeuristicLab.Persistence.Auxiliary;
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[1454] | 8 |
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[1823] | 9 | namespace HeuristicLab.Persistence.Default.CompositeSerializers {
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[1566] | 10 |
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[3017] | 11 | [StorableClass]
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[3036] | 12 | internal sealed class DictionarySerializer : ICompositeSerializer {
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[1454] | 13 |
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[1539] | 14 | public int Priority {
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| 15 | get { return 100; }
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| 16 | }
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| 17 |
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| 18 |
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[1823] | 19 | public bool CanSerialize(Type type) {
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[1705] | 20 | return ReflectionTools.HasDefaultConstructor(type) &&
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| 21 | type.GetInterface(typeof(IDictionary).FullName) != null;
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[1454] | 22 | }
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| 23 |
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[2993] | 24 | public string JustifyRejection(Type type) {
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| 25 | if (!ReflectionTools.HasDefaultConstructor(type))
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| 26 | return "no default constructor";
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| 27 | return "interface IDictionary not implemented";
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| 28 | }
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| 29 |
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[1553] | 30 | public IEnumerable<Tag> CreateMetaInfo(object o) {
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| 31 | return new Tag[] { };
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| 32 | }
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| 33 |
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[1542] | 34 | public IEnumerable<Tag> Decompose(object o) {
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[1566] | 35 | IDictionary dict = (IDictionary)o;
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| 36 | foreach (DictionaryEntry entry in dict) {
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[1454] | 37 | yield return new Tag("key", entry.Key);
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| 38 | yield return new Tag("value", entry.Value);
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| 39 | }
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| 40 | }
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| 41 |
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[1553] | 42 | public object CreateInstance(Type t, IEnumerable<Tag> metaInfo) {
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[1454] | 43 | return Activator.CreateInstance(t, true);
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| 44 | }
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| 45 |
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[1553] | 46 | public void Populate(object instance, IEnumerable<Tag> o, Type t) {
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[1454] | 47 | IDictionary dict = (IDictionary)instance;
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| 48 | IEnumerator<Tag> iter = o.GetEnumerator();
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[1625] | 49 | try {
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| 50 | while (iter.MoveNext()) {
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| 51 | Tag key = iter.Current;
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| 52 | iter.MoveNext();
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| 53 | Tag value = iter.Current;
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| 54 | dict.Add(key.Value, value.Value);
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| 55 | }
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| 56 | } catch (InvalidOperationException e) {
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| 57 | throw new PersistenceException("Dictionaries must contain an even number of elements (key+value).", e);
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| 58 | } catch (NotSupportedException e) {
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| 59 | throw new PersistenceException("The serialized dictionary type was read-only or had a fixed size and cannot be deserialized.", e);
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| 60 | } catch (ArgumentNullException e) {
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| 61 | throw new PersistenceException("Dictionary key was null.", e);
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| 62 | } catch (ArgumentException e) {
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| 63 | throw new PersistenceException("Duplicate dictionary key.", e);
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[1705] | 64 | }
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[1454] | 65 | }
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| 66 | }
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| 67 |
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| 68 | }
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