Added System.Text.Json serialization-based JsonPatch implementation

AspNetCore.slnx

@@ -211,6 +211,10 @@
     <Project Path="src/DefaultBuilder/test/Microsoft.AspNetCore.Tests/Microsoft.AspNetCore.Tests.csproj" />
   </Folder>
   <Folder Name="/src/Features/" Id="e81caa0a-8d6a-e3b6-28b3-ab416e1657a7" />
+  <Folder Name="/src/Features/JsonPatch.SystemTextJson/" Id="02ea681e-c7d8-13c7-8484-4ac65e1b71e8">
+    <Project Path="src/Features/JsonPatch.SystemTextJson/src/Microsoft.AspNetCore.JsonPatch.SystemTextJson.csproj" />
+    <Project Path="src/Features/JsonPatch.SystemTextJson/test/Microsoft.AspNetCore.JsonPatch.SystemTextJson.Tests.csproj" />
+  </Folder>
   <Folder Name="/src/Features/JsonPatch/" Id="077a40ee-d664-9e06-acde-21ca54b47638">
     <Project Path="src/Features/JsonPatch/src/Microsoft.AspNetCore.JsonPatch.csproj" />
     <Project Path="src/Features/JsonPatch/test/Microsoft.AspNetCore.JsonPatch.Tests.csproj" />

src/Features/JsonPatch.SystemTextJson/.vsconfig

@@ -0,0 +1,12 @@
+{
+  "version": "1.0",
+  "components": [
+    "Microsoft.Net.Component.4.6.2.TargetingPack",
+    "Microsoft.Net.Component.4.7.2.SDK",
+    "Microsoft.Net.Component.4.7.2.TargetingPack",
+    "Microsoft.VisualStudio.Workload.ManagedDesktop",
+    "Microsoft.VisualStudio.Workload.NetCoreTools",
+    "Microsoft.VisualStudio.Workload.NetWeb",
+    "Microsoft.VisualStudio.Workload.VisualStudioExtension"
+  ]
+}

src/Features/JsonPatch.SystemTextJson/JsonPatch.SystemTextJson.slnf

@@ -0,0 +1,9 @@
+{
+  "solution": {
+    "path": "..\\..\\..\\AspNetCore.slnx",
+    "projects" : [
+      "src\\Features\\JsonPatch.SystemTextJson\\src\\Microsoft.AspNetCore.JsonPatch.SystemTextJson.csproj",
+      "src\\Features\\JsonPatch.SystemTextJson\\test\\Microsoft.AspNetCore.JsonPatch.SystemTextJson.Tests.csproj"
+    ]
+  }
+}

src/Features/JsonPatch.SystemTextJson/build.cmd

@@ -0,0 +1,4 @@
+
+@ECHO OFF
+SET RepoRoot=%~dp0..\..\..
+%RepoRoot%\eng\build.cmd -projects %~dp0**\*.*proj %*

src/Features/JsonPatch.SystemTextJson/build.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+repo_root="$DIR/../.."
+"$repo_root/eng/build.sh" --projects "$DIR/**/*.*proj" "$@"

src/Features/JsonPatch.SystemTextJson/src/Adapters/AdapterFactory.cs

@@ -0,0 +1,40 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Text.Json.Nodes;
+using Microsoft.AspNetCore.JsonPatch.SystemTextJson.Internal;
+using Microsoft.AspNetCore.Shared;
+
+namespace Microsoft.AspNetCore.JsonPatch.SystemTextJson.Adapters;
+
+/// <summary>
+/// The default AdapterFactory to be used for resolving <see cref="IAdapter"/>.
+/// </summary>
+internal class AdapterFactory : IAdapterFactory
+{
+    internal static AdapterFactory Default { get; } = new();
+
+    /// <inheritdoc />
+    public virtual IAdapter Create(object target)
+    {
+        ArgumentNullThrowHelper.ThrowIfNull(target);
+
+        var typeToConvert = target.GetType();
+        if (typeToConvert.IsGenericType && typeToConvert.GetGenericTypeDefinition() == typeof(Dictionary<,>))
+        {
+            return (IAdapter)Activator.CreateInstance(typeof(DictionaryAdapter<,>).MakeGenericType(typeToConvert.GenericTypeArguments[0], typeToConvert.GenericTypeArguments[1]));
+        }
+
+        return target switch
+        {
+            JsonObject => new JsonObjectAdapter(),
+            JsonArray => new ListAdapter(),
+            IList => new ListAdapter(),
+            _ => new PocoAdapter()
+        };
+    }
+}
+

src/Features/JsonPatch.SystemTextJson/src/Adapters/IAdapterFactory.cs

@@ -0,0 +1,19 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using Microsoft.AspNetCore.JsonPatch.SystemTextJson.Internal;
+
+namespace Microsoft.AspNetCore.JsonPatch.SystemTextJson.Adapters;
+
+/// <summary>
+/// Defines the operations used for loading an <see cref="IAdapter"/> based on the current object and ContractResolver.
+/// </summary>
+internal interface IAdapterFactory
+{
+    /// <summary>
+    /// Creates an <see cref="IAdapter"/> for the current object
+    /// </summary>
+    /// <param name="target">The target object</param>
+    /// <returns>The needed <see cref="IAdapter"/></returns>
+    IAdapter Create(object target);
+}

src/Features/JsonPatch.SystemTextJson/src/Adapters/IObjectAdapter.cs

@@ -0,0 +1,111 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using Microsoft.AspNetCore.JsonPatch.SystemTextJson.Operations;
+
+namespace Microsoft.AspNetCore.JsonPatch.SystemTextJson.Adapters;
+
+/// <summary>
+/// Defines the operations that can be performed on a JSON patch document.
+/// </summary>
+public interface IObjectAdapter
+{
+    /// <summary>
+    /// Using the "add" operation a new value is inserted into the root of the target
+    /// document, into the target array at the specified valid index, or to a target object at
+    /// the specified location.
+    ///
+    /// When adding to arrays, the specified index MUST NOT be greater than the number of elements in the array.
+    /// To append the value to the array, the index of "-" character is used (see [RFC6901]).
+    ///
+    /// When adding to an object, if an object member does not already exist, a new member is added to the object at the
+    /// specified location or if an object member does exist, that member's value is replaced.
+    ///
+    /// The operation object MUST contain a "value" member whose content
+    /// specifies the value to be added.
+    ///
+    /// For example:
+    ///
+    /// { "op": "add", "path": "/a/b/c", "value": [ "foo", "bar" ] }
+    ///
+    /// See RFC 6902 <see href="https://tools.ietf.org/html/rfc6902#page-4"/>
+    /// </summary>
+    /// <param name="operation">The add operation.</param>
+    /// <param name="objectToApplyTo">Object to apply the operation to.</param>
+    void Add(Operation operation, object objectToApplyTo);
+
+    /// <summary>
+    ///  Using the "copy" operation, a value is copied from a specified location to the
+    ///  target location.
+    ///
+    ///  The operation object MUST contain a "from" member, which references the location in the
+    ///  target document to copy the value from.
+    ///
+    ///  The "from" location MUST exist for the operation to be successful.
+    ///
+    ///  For example:
+    ///
+    ///  { "op": "copy", "from": "/a/b/c", "path": "/a/b/e" }
+    ///
+    /// See RFC 6902 <see href="https://tools.ietf.org/html/rfc6902#page-7"/>
+    /// </summary>
+    /// <param name="operation">The copy operation.</param>
+    /// <param name="objectToApplyTo">Object to apply the operation to.</param>
+    void Copy(Operation operation, object objectToApplyTo);
+
+    /// <summary>
+    /// Using the "move" operation the value at a specified location is removed and
+    /// added to the target location.
+    ///
+    /// The operation object MUST contain a "from" member, which references the location in the
+    /// target document to move the value from.
+    ///
+    /// The "from" location MUST exist for the operation to be successful.
+    ///
+    /// For example:
+    ///
+    /// { "op": "move", "from": "/a/b/c", "path": "/a/b/d" }
+    ///
+    /// A location cannot be moved into one of its children.
+    ///
+    /// See RFC 6902 <see href="https://tools.ietf.org/html/rfc6902#page-6"/>
+    /// </summary>
+    /// <param name="operation">The move operation.</param>
+    /// <param name="objectToApplyTo">Object to apply the operation to.</param>
+    void Move(Operation operation, object objectToApplyTo);
+
+    /// <summary>
+    /// Using the "remove" operation the value at the target location is removed.
+    ///
+    /// The target location MUST exist for the operation to be successful.
+    ///
+    /// For example:
+    ///
+    /// { "op": "remove", "path": "/a/b/c" }
+    ///
+    /// If removing an element from an array, any elements above the
+    /// specified index are shifted one position to the left.
+    ///
+    /// See RFC 6902 <see href="https://tools.ietf.org/html/rfc6902#page-6"/>
+    /// </summary>
+    /// <param name="operation">The remove operation.</param>
+    /// <param name="objectToApplyTo">Object to apply the operation to.</param>
+    void Remove(Operation operation, object objectToApplyTo);
+
+    /// <summary>
+    /// Using the "replace" operation the value at the target location is replaced
+    /// with a new value.  The operation object MUST contain a "value" member
+    /// which specifies the replacement value.
+    ///
+    /// The target location MUST exist for the operation to be successful.
+    ///
+    /// For example:
+    ///
+    /// { "op": "replace", "path": "/a/b/c", "value": 42 }
+    ///
+    /// See RFC 6902 <see href="https://tools.ietf.org/html/rfc6902#page-6"/>
+    /// </summary>
+    /// <param name="operation">The replace operation.</param>
+    /// <param name="objectToApplyTo">Object to apply the operation to.</param>
+    void Replace(Operation operation, object objectToApplyTo);
+}

src/Features/JsonPatch.SystemTextJson/src/Adapters/IObjectAdapterWithTest.cs

@@ -0,0 +1,31 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using Microsoft.AspNetCore.JsonPatch.SystemTextJson.Operations;
+
+namespace Microsoft.AspNetCore.JsonPatch.SystemTextJson.Adapters;
+
+/// <summary>
+/// Defines the operations that can be performed on a JSON patch document, including "test".
+/// </summary>
+public interface IObjectAdapterWithTest : IObjectAdapter
+{
+    /// <summary>
+    /// Using the "test" operation a value at the target location is compared for
+    /// equality to a specified value.
+    ///
+    /// The operation object MUST contain a "value" member that specifies
+    /// value to be compared to the target location's value.
+    ///
+    /// The target location MUST be equal to the "value" value for the
+    /// operation to be considered successful.
+    ///
+    /// For example:
+    /// { "op": "test", "path": "/a/b/c", "value": "foo" }
+    ///
+    /// See RFC 6902 <see href="https://tools.ietf.org/html/rfc6902#page-7"/>
+    /// </summary>
+    /// <param name="operation">The test operation.</param>
+    /// <param name="objectToApplyTo">Object to apply the operation to.</param>
+    void Test(Operation operation, object objectToApplyTo);
+}