[1280] | 1 | using System;
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| 2 | using System.Collections;
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| 3 | using System.Reflection;
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| 4 | using System.Collections.Generic;
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| 5 | namespace Persistence {
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| 6 |
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[1314] | 7 | public interface ICompoundSerializer {
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[1280] | 8 | bool CanSerialize(Type type);
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| 9 | IEnumerable Serialize(object o);
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| 10 | object DeSerialize(IEnumerable o, Type t);
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| 11 | }
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| 12 |
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[1314] | 13 | public class EnumerableSerializer : ICompoundSerializer {
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[1280] | 14 | public bool CanSerialize(Type type) {
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| 15 | if (type.GetInterface("IEnumerable") == null)
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| 16 | return false;
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| 17 | if (type.GetMethod("GetEnumerator", new Type[] { }) == null)
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| 18 | return false;
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| 19 | MethodInfo addMethod = type.GetMethod("Add");
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| 20 | if (addMethod == null)
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| 21 | return false;
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| 22 | if (addMethod.GetParameters().Length != 1)
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| 23 | return false;
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| 24 | return true;
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| 25 | }
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| 26 | public IEnumerable Serialize(object o) {
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| 27 | return (IEnumerable)o;
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| 28 | }
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| 29 | public object DeSerialize(IEnumerable objects, Type t) {
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| 30 | object instance = Activator.CreateInstance(t);
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| 31 | foreach (object o in objects) {
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| 32 | t.GetMethod("Add").Invoke(instance, new object[] { o });
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| 33 | }
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| 34 | return instance;
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| 35 | }
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| 36 | }
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| 37 |
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[1314] | 38 | public class ArraySerializer : ICompoundSerializer {
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[1280] | 39 |
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[1313] | 40 | public bool CanSerialize(Type type) {
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[1280] | 41 | return type.IsArray;
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| 42 | }
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| 43 |
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| 44 | public IEnumerable Serialize(object array) {
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[1313] | 45 | Array a = (Array)array;
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| 46 | yield return a.Rank;
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| 47 | for (int i = 0; i < a.Rank; i++) {
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| 48 | yield return a.GetLength(i);
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| 49 | }
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[1280] | 50 | foreach (object o in (Array)array) {
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| 51 | yield return o;
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| 52 | }
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| 53 | }
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| 54 |
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| 55 | public object DeSerialize(IEnumerable elements, Type t) {
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[1313] | 56 | IEnumerator e = elements.GetEnumerator();
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| 57 | e.MoveNext();
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| 58 | int rank = (int)e.Current;
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| 59 | int[] lengths = new int[rank];
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| 60 | for (int i = 0; i < rank; i++) {
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| 61 | e.MoveNext();
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| 62 | lengths[i] = (int)e.Current;
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[1280] | 63 | }
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[1313] | 64 | Array a = Array.CreateInstance(t.GetElementType(), lengths);
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| 65 | int[] positions = new int[rank];
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| 66 | while (e.MoveNext()) {
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| 67 | a.SetValue(e.Current, positions);
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| 68 | positions[0] += 1;
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| 69 | for (int i = 0; i < rank-1; i++) {
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| 70 | if (positions[i] >= lengths[i]) {
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| 71 | positions[i] = 0;
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| 72 | positions[i + 1] += 1;
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| 73 | } else {
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| 74 | break;
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| 75 | }
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| 76 | }
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[1280] | 77 | }
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[1313] | 78 | return a;
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[1280] | 79 | }
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| 80 |
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| 81 | }
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| 82 |
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| 83 |
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| 84 | }
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