forked from ln-dotnet/ln.json
JSONMapper
parent
8ded5ec2af
commit
9b2d2fe6b5
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@ -1,15 +1,17 @@
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<Properties StartupConfiguration="{49FFBD9F-655E-4C74-A078-99B5E09059C6}|Default">
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<MonoDevelop.Ide.Workbench>
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<MonoDevelop.Ide.Workbench ActiveDocument="json.test/Program.cs">
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<Files>
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<File FileName="json.test/Program.cs" Line="54" Column="9" />
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</Files>
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<Pads>
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<Pad Id="ProjectPad">
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<State name="__root__">
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<Node name="sharp.json" expanded="True">
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<Node name="json.test" expanded="True" />
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<Node name="ln.json" expanded="True">
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<Node name="JSONParser.cs" selected="True" />
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<Node name="json.test" expanded="True">
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<Node name="Program.cs" selected="True" />
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</Node>
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<Node name="ln.types" expanded="True">
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<Node name="stream" expanded="True" />
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<Node name="ln.json" expanded="True">
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<Node name="mapping" expanded="True" />
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</Node>
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</Node>
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</State>
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@ -9,6 +9,8 @@ namespace ln.json
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public override IEnumerable<JSONValue> Children => Values;
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public override bool HasChildren => true;
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public int Count => values.Count;
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JSONValue[] Values
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{
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get => values.ToArray();
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@ -5,6 +5,7 @@ namespace ln.json
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{
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public class JSONNumber : JSONValue
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{
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public Decimal Decimal => decValue;
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readonly decimal decValue;
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public JSONNumber(int i)
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@ -16,6 +17,15 @@ namespace ln.json
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decValue = new decimal(integer);
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}
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public JSONNumber(uint i)
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: this((ulong)i) { }
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public JSONNumber(ulong integer)
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: base(JSONValueType.NUMBER)
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{
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decValue = new decimal(integer);
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}
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public JSONNumber(double doubleValue)
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: base(JSONValueType.NUMBER)
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{
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@ -15,6 +15,8 @@ namespace ln.json
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public override IEnumerable<JSONValue> Children => values.Values;
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public override bool HasChildren => true;
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public int Count => values.Count;
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BTree<string, JSONValue> values = new BTree<string, JSONValue>();
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public JSONObject()
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@ -32,6 +34,11 @@ namespace ln.json
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return this;
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}
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public bool ContainsKey(string key)
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{
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return values.ContainsKey(key);
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}
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public override string ToString()
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{
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StringBuilder sb = new StringBuilder();
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@ -2,6 +2,7 @@
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using System.IO;
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using ln.json;
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using ln.json.mapping;
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namespace json.test
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{
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@ -37,6 +38,26 @@ namespace json.test
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Console.WriteLine("");
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Console.WriteLine("test.json file:");
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Console.WriteLine("PARSED: {0}",value.ToString());
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Person person = new Person()
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{
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firstname = "Harald",
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lastname = "Wolff-Thobaben",
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age = 39
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};
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JSONValue jsonPerson = JSONMapper.DefaultMapper.ToJson(person);
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Console.WriteLine(jsonPerson.ToString());
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Person p2 = JSONMapper.DefaultMapper.FromJson<Person>(jsonPerson);
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}
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}
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class Person
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{
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public string firstname;
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public string lastname;
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public int age;
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}
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}
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}
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@ -38,6 +38,11 @@
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<Compile Include="JSONNumber.cs" />
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<Compile Include="JSONValue.cs" />
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<Compile Include="JSONParser.cs" />
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<Compile Include="mapping\JSONMapper.cs" />
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<Compile Include="mapping\JSONMapping.cs" />
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<Compile Include="mapping\JSONArrayMapping.cs" />
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<Compile Include="mapping\JSONObjectMapping.cs" />
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<Compile Include="mapping\JSONEnumerableMapping.cs" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="ln.types\ln.types.csproj">
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@ -45,6 +50,9 @@
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<Name>ln.types</Name>
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</ProjectReference>
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</ItemGroup>
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<ItemGroup>
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<Folder Include="mapping\" />
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</ItemGroup>
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<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
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<ProjectExtensions>
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<MonoDevelop>
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@ -0,0 +1,45 @@
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// /**
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// * File: JSONArrayMapping.cs
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// * Author: haraldwolff
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// *
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// * This file and it's content is copyrighted by the Author and / or copyright holder.
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// * Any use wihtout proper permission is illegal and may lead to legal actions.
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// *
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// *
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// **/
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using System;
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namespace ln.json.mapping
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{
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public class JSONArrayMapping : JSONMapping
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{
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Type elementType;
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public JSONArrayMapping(Type type)
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:base(type)
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{
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elementType = type.GetElementType();
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}
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public override object FromJson(JSONMapper mapper, JSONValue json)
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{
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JSONArray jsonArray = (JSONArray)json;
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Array array = Array.CreateInstance(elementType,jsonArray.Count);
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for (int n = 0; n < array.Length; n++)
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array.SetValue(mapper.FromJson(jsonArray[n],elementType),n);
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return array;
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}
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public override JSONValue ToJson(JSONMapper mapper, object value)
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{
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Array array = (Array)value;
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JSONArray jsonArray = new JSONArray();
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foreach (object element in array)
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jsonArray.Add(mapper.ToJson(element));
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return jsonArray;
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}
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}
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}
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@ -0,0 +1,41 @@
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// /**
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// * File: JSONArrayMapping.cs
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// * Author: haraldwolff
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// *
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// * This file and it's content is copyrighted by the Author and / or copyright holder.
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// * Any use wihtout proper permission is illegal and may lead to legal actions.
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// *
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// *
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// **/
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using System;
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using System.Collections;
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using System.Collections.Generic;
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namespace ln.json.mapping
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{
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public class JSONEnumerableMapping<T> : JSONMapping
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{
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Type elementType;
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public JSONEnumerableMapping()
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:base(typeof(T))
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{
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elementType = typeof(T).GetGenericArguments()[0];
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}
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public override object FromJson(JSONMapper mapper, JSONValue json)
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{
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throw new NotSupportedException("IEnumerable<> can not be set from JSON");
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}
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public override JSONValue ToJson(JSONMapper mapper, object value)
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{
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IEnumerable<T> ie = (IEnumerable<T>)value;
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JSONArray jsonArray = new JSONArray();
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foreach (object element in ie)
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jsonArray.Add(mapper.ToJson(element));
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return jsonArray;
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}
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}
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}
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@ -0,0 +1,151 @@
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// /**
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// * File: JSONMapper.cs
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// * Author: haraldwolff
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// *
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// * This file and it's content is copyrighted by the Author and / or copyright holder.
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// * Any use wihtout proper permission is illegal and may lead to legal actions.
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// *
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// *
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// **/
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using System;
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using System.Reflection;
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using System.Collections.Generic;
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using System.Collections;
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using System.Diagnostics.Tracing;
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namespace ln.json.mapping
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{
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public class JSONMapper
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{
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public static JSONMapper DefaultMapper { get; set; } = new JSONMapper(true);
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Dictionary<Type, JSONMapping> mappings = new Dictionary<Type, JSONMapping>();
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public JSONMapper()
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{
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}
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private JSONMapper(bool defaultMapper)
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{
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/**
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* Integer
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**/
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Add(new JSONMapping(
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typeof(byte),
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(JSONMapper arg1, object arg2) => new JSONNumber((int)arg2),
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(JSONMapper arg1, JSONValue arg2) => Decimal.ToByte(((JSONNumber)arg2).Decimal)
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));
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Add(new JSONMapping(
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typeof(short),
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(JSONMapper arg1, object arg2) => new JSONNumber((int)arg2),
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(JSONMapper arg1, JSONValue arg2) => Decimal.ToInt16(((JSONNumber)arg2).Decimal)
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));
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Add(new JSONMapping(
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typeof(int),
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(JSONMapper arg1, object arg2) => new JSONNumber((int)arg2),
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(JSONMapper arg1, JSONValue arg2) => Decimal.ToInt32(((JSONNumber)arg2).Decimal)
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));
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Add(new JSONMapping(
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typeof(long),
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(JSONMapper arg1, object arg2) => new JSONNumber((long)arg2),
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(JSONMapper arg1, JSONValue arg2) => Decimal.ToInt64(((JSONNumber)arg2).Decimal)
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));
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Add(new JSONMapping(
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typeof(ushort),
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(JSONMapper arg1, object arg2) => new JSONNumber((uint)arg2),
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(JSONMapper arg1, JSONValue arg2) => Decimal.ToUInt16(((JSONNumber)arg2).Decimal)
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));
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Add(new JSONMapping(
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typeof(uint),
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(JSONMapper arg1, object arg2) => new JSONNumber((uint)arg2),
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(JSONMapper arg1, JSONValue arg2) => Decimal.ToUInt32(((JSONNumber)arg2).Decimal)
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));
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Add(new JSONMapping(
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typeof(ulong),
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(JSONMapper arg1, object arg2) => new JSONNumber((ulong)arg2),
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(JSONMapper arg1, JSONValue arg2) => Decimal.ToUInt64(((JSONNumber)arg2).Decimal)
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));
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/**
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* Float
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**/
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Add(new JSONMapping(
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typeof(float),
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(JSONMapper arg1, object arg2) => new JSONNumber((float)arg2),
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(JSONMapper arg1, JSONValue arg2) => (float)Decimal.ToDouble(((JSONNumber)arg2).Decimal)
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));
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Add(new JSONMapping(
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typeof(double),
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(JSONMapper arg1, object arg2) => new JSONNumber((double)arg2),
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(JSONMapper arg1, JSONValue arg2) => Decimal.ToDouble(((JSONNumber)arg2).Decimal)
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));
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/**
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* Strings
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**/
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Add(new JSONMapping(
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typeof(string),
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(JSONMapper arg1, object arg2) => new JSONString((string)arg2),
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(JSONMapper arg1, JSONValue arg2) => ((JSONString)arg2).Value
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));
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/**
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* Others
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**/
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Add(new JSONMapping(
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typeof(bool),
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(JSONMapper arg1, object arg2) => ((bool)arg2) ? (JSONValue)JSONTrue.Instance : (JSONValue)JSONFalse.Instance,
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(JSONMapper arg1, JSONValue arg2) => (arg2.ValueType == JSONValueType.TRUE) || (arg2.ValueType == JSONValueType.FALSE) ? false : throw new NotSupportedException()
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));
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}
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public void Add(JSONMapping mapping)
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{
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mappings[mapping.TargetType] = mapping;
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}
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private JSONMapping FindMapping(Type targetType)
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{
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if (mappings.ContainsKey(targetType))
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return mappings[targetType];
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if (this != DefaultMapper)
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return DefaultMapper.FindMapping(targetType);
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if (!targetType.IsPrimitive && !targetType.IsValueType)
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{
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if (targetType.IsArray)
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{
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Add(new JSONArrayMapping(targetType));
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} else if (targetType.IsGenericType && targetType.GetGenericTypeDefinition().Equals(typeof(IEnumerable<>)))
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{
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Add((JSONMapping)Activator.CreateInstance(typeof(JSONEnumerableMapping<>).MakeGenericType(targetType.GetGenericArguments()[0])));
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} else
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{
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Add(new JSONObjectMapping(targetType));
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}
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return mappings[targetType];
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}
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throw new NotSupportedException();
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}
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public T FromJson<T>(JSONValue json) => (T)FromJson(json, typeof(T));
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public object FromJson(JSONValue json, Type targetType)
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{
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if (json.ValueType == JSONValueType.NULL)
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return null;
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return FindMapping(targetType).FromJson(this, json);
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}
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public JSONValue ToJson(object value)
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{
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if (value == null)
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return JSONNull.Instance;
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Type sourceType = value.GetType();
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return FindMapping(sourceType).ToJson(this, value);
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}
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}
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}
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// /**
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// * File: JSONMapping.cs
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// * Author: haraldwolff
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// *
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// * This file and it's content is copyrighted by the Author and / or copyright holder.
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// * Any use wihtout proper permission is illegal and may lead to legal actions.
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// *
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// *
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// **/
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using System;
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namespace ln.json.mapping
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{
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public class JSONMapping
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{
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public Type TargetType { get; }
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Func<JSONMapper, object, JSONValue> tojson;
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Func<JSONMapper, JSONValue, object> fromjson;
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public JSONMapping(Type targetType,Func<JSONMapper, object, JSONValue> tojson, Func<JSONMapper, JSONValue, object> fromjson)
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{
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TargetType = targetType;
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this.fromjson = fromjson;
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this.tojson = tojson;
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}
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protected JSONMapping(Type targetType)
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{
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TargetType = targetType;
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}
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public virtual object FromJson(JSONMapper mapper,JSONValue json)
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{
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return fromjson(mapper, json);
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}
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public virtual JSONValue ToJson(JSONMapper mapper,object value)
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{
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return tojson(mapper, value);
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}
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}
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}
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@ -0,0 +1,62 @@
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// /**
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// * File: JSONObjectMapping.cs
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// * Author: haraldwolff
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// *
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// * This file and it's content is copyrighted by the Author and / or copyright holder.
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// * Any use wihtout proper permission is illegal and may lead to legal actions.
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// *
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// *
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// **/
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using System;
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using System.Collections.Generic;
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using System.Reflection;
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namespace ln.json.mapping
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{
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public class JSONObjectMapping : JSONMapping
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{
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Dictionary<string, Action<object,object>> setters = new Dictionary<string, Action<object,object>>();
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Dictionary<string, Func<object, object>> getters = new Dictionary<string, Func<object, object>>();
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Dictionary<string, Type> types = new Dictionary<string, Type>();
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public JSONObjectMapping(Type type)
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:base(type)
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{
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foreach (FieldInfo fieldInfo in type.GetFields(BindingFlags.Instance | BindingFlags.Public))
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{
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setters.Add(fieldInfo.Name, (object arg1, object arg2) => fieldInfo.SetValue(arg1, arg2));
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getters.Add(fieldInfo.Name, (object arg) => fieldInfo.GetValue(arg));
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types.Add(fieldInfo.Name, fieldInfo.FieldType);
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}
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foreach (PropertyInfo propertyInfo in type.GetProperties(BindingFlags.Instance | BindingFlags.Public))
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{
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setters.Add(propertyInfo.Name, (object arg1, object arg2) => propertyInfo.SetValue(arg1, arg2));
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getters.Add(propertyInfo.Name, (object arg) => propertyInfo.GetValue(arg));
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types.Add(propertyInfo.Name, propertyInfo.PropertyType);
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}
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}
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public override object FromJson(JSONMapper mapper, JSONValue json)
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{
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JSONObject jObject = (JSONObject)json;
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object o = Activator.CreateInstance(TargetType);
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foreach (string name in setters.Keys)
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{
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if (jObject.ContainsKey(name))
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setters[name](o, mapper.FromJson(jObject[name], types[name]));
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}
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return o;
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}
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public override JSONValue ToJson(JSONMapper mapper, object value)
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{
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JSONObject json = new JSONObject();
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foreach (string name in getters.Keys)
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{
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json[name] = mapper.ToJson(getters[name](value));
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}
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return json;
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}
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}
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}
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Reference in New Issue