shalliwell
5 years ago
12 changed files with 678 additions and 259 deletions
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fileFormatVersion: 1 |
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guid: 6b700d54458b2824c934e039a95c468c |
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//#define PERFTEST //For testing performance of parse/stringify. Turn on editor profiling to see how we're doing |
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using UnityEngine; |
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using UnityEditor; |
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#if UNITY_2017_1_OR_NEWER |
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using UnityEngine.Networking; |
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#endif |
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|
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/* |
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Copyright (c) 2010-2019 Matt Schoen |
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|
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Permission is hereby granted, free of charge, to any person obtaining a copy |
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of this software and associated documentation files (the "Software"), to deal |
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in the Software without restriction, including without limitation the rights |
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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copies of the Software, and to permit persons to whom the Software is |
||||
furnished to do so, subject to the following conditions: |
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|
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The above copyright notice and this permission notice shall be included in |
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all copies or substantial portions of the Software. |
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|
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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THE SOFTWARE. |
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*/ |
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public class JSONChecker : EditorWindow { |
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string JSON = @"{
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""TestObject"": { |
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""SomeText"": ""Blah"", |
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""SomeObject"": { |
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""SomeNumber"": 42, |
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""SomeFloat"": 13.37, |
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""SomeBool"": true, |
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""SomeNull"": null |
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}, |
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""SomeEmptyObject"": { }, |
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""SomeEmptyArray"": [ ], |
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""EmbeddedObject"": ""{\""field\"":\""Value with \\\""escaped quotes\\\""\""}"" |
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} |
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}"; //dat string literal...
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string URL = ""; |
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JSONObject j; |
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[MenuItem("Window/JSONChecker")] |
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static void Init() { |
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GetWindow(typeof(JSONChecker)); |
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} |
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void OnGUI() { |
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JSON = EditorGUILayout.TextArea(JSON); |
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GUI.enabled = !string.IsNullOrEmpty(JSON); |
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if(GUILayout.Button("Check JSON")) { |
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#if PERFTEST |
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Profiler.BeginSample("JSONParse"); |
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j = JSONObject.Create(JSON); |
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Profiler.EndSample(); |
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Profiler.BeginSample("JSONStringify"); |
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j.ToString(true); |
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Profiler.EndSample(); |
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#else |
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j = JSONObject.Create(JSON); |
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#endif |
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Debug.Log(j.ToString(true)); |
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} |
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EditorGUILayout.Separator(); |
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URL = EditorGUILayout.TextField("URL", URL); |
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if (GUILayout.Button("Get JSON")) { |
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Debug.Log(URL); |
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#if UNITY_2017_1_OR_NEWER |
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var test = new UnityWebRequest(URL); |
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test.SendWebRequest(); |
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while (!test.isDone && !test.isNetworkError) ; |
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#else |
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var test = new WWW(URL); |
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while (!test.isDone) ; |
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#endif |
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if (!string.IsNullOrEmpty(test.error)) { |
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Debug.Log(test.error); |
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} else { |
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#if UNITY_2017_1_OR_NEWER |
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var text = test.downloadHandler.text; |
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#else |
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var text = test.text; |
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#endif |
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Debug.Log(text); |
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j = new JSONObject(text); |
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Debug.Log(j.ToString(true)); |
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} |
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} |
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if(j) { |
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//Debug.Log(System.GC.GetTotalMemory(false) + ""); |
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if(j.type == JSONObject.Type.NULL) |
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GUILayout.Label("JSON fail:\n" + j.ToString(true)); |
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else |
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GUILayout.Label("JSON success:\n" + j.ToString(true)); |
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} |
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} |
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} |
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fileFormatVersion: 1 |
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guid: 6c5a625d29393ed4da8d9150a629fb35 |
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Copyright (c) 2010-2019 Matt Schoen |
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|
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Permission is hereby granted, free of charge, to any person obtaining a copy |
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of this software and associated documentation files (the "Software"), to deal |
||||
in the Software without restriction, including without limitation the rights |
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
||||
copies of the Software, and to permit persons to whom the Software is |
||||
furnished to do so, subject to the following conditions: |
||||
|
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The above copyright notice and this permission notice shall be included in |
||||
all copies or substantial portions of the Software. |
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
||||
THE SOFTWARE. |
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fileFormatVersion: 2 |
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guid: d65b4117f5b5c3341947d0a81786e2cd |
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TextScriptImporter: |
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externalObjects: {} |
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userData: |
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assetBundleName: |
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assetBundleVariant: |
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using UnityEngine; |
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|
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/* |
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Copyright (c) 2010-2019 Matt Schoen |
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|
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Permission is hereby granted, free of charge, to any person obtaining a copy |
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of this software and associated documentation files (the "Software"), to deal |
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in the Software without restriction, including without limitation the rights |
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
||||
copies of the Software, and to permit persons to whom the Software is |
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furnished to do so, subject to the following conditions: |
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|
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The above copyright notice and this permission notice shall be included in |
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all copies or substantial portions of the Software. |
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|
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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THE SOFTWARE. |
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*/ |
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public static partial class JSONTemplates { |
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/* |
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* Vector2 |
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*/ |
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public static Vector2 ToVector2(JSONObject obj) { |
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float x = obj["x"] ? obj["x"].f : 0; |
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float y = obj["y"] ? obj["y"].f : 0; |
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return new Vector2(x, y); |
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} |
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public static JSONObject FromVector2(Vector2 v) { |
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JSONObject vdata = JSONObject.obj; |
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if(v.x != 0) vdata.AddField("x", v.x); |
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if(v.y != 0) vdata.AddField("y", v.y); |
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return vdata; |
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} |
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/* |
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* Vector3 |
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*/ |
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public static JSONObject FromVector3(Vector3 v) { |
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JSONObject vdata = JSONObject.obj; |
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if(v.x != 0) vdata.AddField("x", v.x); |
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if(v.y != 0) vdata.AddField("y", v.y); |
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if(v.z != 0) vdata.AddField("z", v.z); |
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return vdata; |
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} |
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public static Vector3 ToVector3(JSONObject obj) { |
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float x = obj["x"] ? obj["x"].f : 0; |
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float y = obj["y"] ? obj["y"].f : 0; |
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float z = obj["z"] ? obj["z"].f : 0; |
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return new Vector3(x, y, z); |
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} |
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/* |
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* Vector4 |
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*/ |
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public static JSONObject FromVector4(Vector4 v) { |
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JSONObject vdata = JSONObject.obj; |
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if(v.x != 0) vdata.AddField("x", v.x); |
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if(v.y != 0) vdata.AddField("y", v.y); |
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if(v.z != 0) vdata.AddField("z", v.z); |
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if(v.w != 0) vdata.AddField("w", v.w); |
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return vdata; |
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} |
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public static Vector4 ToVector4(JSONObject obj) { |
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float x = obj["x"] ? obj["x"].f : 0; |
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float y = obj["y"] ? obj["y"].f : 0; |
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float z = obj["z"] ? obj["z"].f : 0; |
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float w = obj["w"] ? obj["w"].f : 0; |
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return new Vector4(x, y, z, w); |
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} |
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/* |
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* Matrix4x4 |
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*/ |
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public static JSONObject FromMatrix4x4(Matrix4x4 m) { |
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JSONObject mdata = JSONObject.obj; |
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if(m.m00 != 0) mdata.AddField("m00", m.m00); |
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if(m.m01 != 0) mdata.AddField("m01", m.m01); |
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if(m.m02 != 0) mdata.AddField("m02", m.m02); |
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if(m.m03 != 0) mdata.AddField("m03", m.m03); |
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if(m.m10 != 0) mdata.AddField("m10", m.m10); |
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if(m.m11 != 0) mdata.AddField("m11", m.m11); |
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if(m.m12 != 0) mdata.AddField("m12", m.m12); |
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if(m.m13 != 0) mdata.AddField("m13", m.m13); |
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if(m.m20 != 0) mdata.AddField("m20", m.m20); |
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if(m.m21 != 0) mdata.AddField("m21", m.m21); |
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if(m.m22 != 0) mdata.AddField("m22", m.m22); |
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if(m.m23 != 0) mdata.AddField("m23", m.m23); |
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if(m.m30 != 0) mdata.AddField("m30", m.m30); |
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if(m.m31 != 0) mdata.AddField("m31", m.m31); |
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if(m.m32 != 0) mdata.AddField("m32", m.m32); |
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if(m.m33 != 0) mdata.AddField("m33", m.m33); |
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return mdata; |
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} |
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public static Matrix4x4 ToMatrix4x4(JSONObject obj) { |
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Matrix4x4 result = new Matrix4x4(); |
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if(obj["m00"]) result.m00 = obj["m00"].f; |
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if(obj["m01"]) result.m01 = obj["m01"].f; |
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if(obj["m02"]) result.m02 = obj["m02"].f; |
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if(obj["m03"]) result.m03 = obj["m03"].f; |
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if(obj["m10"]) result.m10 = obj["m10"].f; |
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if(obj["m11"]) result.m11 = obj["m11"].f; |
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if(obj["m12"]) result.m12 = obj["m12"].f; |
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if(obj["m13"]) result.m13 = obj["m13"].f; |
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if(obj["m20"]) result.m20 = obj["m20"].f; |
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if(obj["m21"]) result.m21 = obj["m21"].f; |
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if(obj["m22"]) result.m22 = obj["m22"].f; |
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if(obj["m23"]) result.m23 = obj["m23"].f; |
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if(obj["m30"]) result.m30 = obj["m30"].f; |
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if(obj["m31"]) result.m31 = obj["m31"].f; |
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if(obj["m32"]) result.m32 = obj["m32"].f; |
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if(obj["m33"]) result.m33 = obj["m33"].f; |
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return result; |
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} |
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/* |
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* Quaternion |
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*/ |
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public static JSONObject FromQuaternion(Quaternion q) { |
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JSONObject qdata = JSONObject.obj; |
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if(q.w != 0) qdata.AddField("w", q.w); |
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if(q.x != 0) qdata.AddField("x", q.x); |
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if(q.y != 0) qdata.AddField("y", q.y); |
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if(q.z != 0) qdata.AddField("z", q.z); |
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return qdata; |
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} |
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public static Quaternion ToQuaternion(JSONObject obj) { |
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float x = obj["x"] ? obj["x"].f : 0; |
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float y = obj["y"] ? obj["y"].f : 0; |
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float z = obj["z"] ? obj["z"].f : 0; |
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float w = obj["w"] ? obj["w"].f : 0; |
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return new Quaternion(x, y, z, w); |
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} |
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/* |
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* Color |
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*/ |
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public static JSONObject FromColor(Color c) { |
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JSONObject cdata = JSONObject.obj; |
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if(c.r != 0) cdata.AddField("r", c.r); |
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if(c.g != 0) cdata.AddField("g", c.g); |
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if(c.b != 0) cdata.AddField("b", c.b); |
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if(c.a != 0) cdata.AddField("a", c.a); |
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return cdata; |
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} |
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public static Color ToColor(JSONObject obj) { |
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Color c = new Color(); |
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for(int i = 0; i < obj.Count; i++) { |
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switch(obj.keys[i]) { |
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case "r": c.r = obj[i].f; break; |
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case "g": c.g = obj[i].f; break; |
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case "b": c.b = obj[i].f; break; |
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case "a": c.a = obj[i].f; break; |
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} |
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} |
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return c; |
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} |
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/* |
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* Layer Mask |
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*/ |
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public static JSONObject FromLayerMask(LayerMask l) { |
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JSONObject result = JSONObject.obj; |
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result.AddField("value", l.value); |
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return result; |
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} |
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public static LayerMask ToLayerMask(JSONObject obj) { |
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LayerMask l = new LayerMask {value = (int)obj["value"].n}; |
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return l; |
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} |
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public static JSONObject FromRect(Rect r) { |
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JSONObject result = JSONObject.obj; |
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if(r.x != 0) result.AddField("x", r.x); |
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if(r.y != 0) result.AddField("y", r.y); |
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if(r.height != 0) result.AddField("height", r.height); |
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if(r.width != 0) result.AddField("width", r.width); |
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return result; |
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} |
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public static Rect ToRect(JSONObject obj) { |
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Rect r = new Rect(); |
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for(int i = 0; i < obj.Count; i++) { |
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switch(obj.keys[i]) { |
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case "x": r.x = obj[i].f; break; |
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case "y": r.y = obj[i].f; break; |
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case "height": r.height = obj[i].f; break; |
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case "width": r.width = obj[i].f; break; |
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} |
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} |
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return r; |
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} |
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public static JSONObject FromRectOffset(RectOffset r) { |
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JSONObject result = JSONObject.obj; |
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if(r.bottom != 0) result.AddField("bottom", r.bottom); |
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if(r.left != 0) result.AddField("left", r.left); |
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if(r.right != 0) result.AddField("right", r.right); |
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if(r.top != 0) result.AddField("top", r.top); |
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return result; |
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} |
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public static RectOffset ToRectOffset(JSONObject obj) { |
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RectOffset r = new RectOffset(); |
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for(int i = 0; i < obj.Count; i++) { |
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switch(obj.keys[i]) { |
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case "bottom": r.bottom = (int)obj[i].n; break; |
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case "left": r.left = (int)obj[i].n; break; |
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case "right": r.right = (int)obj[i].n; break; |
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case "top": r.top = (int)obj[i].n; break; |
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} |
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} |
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return r; |
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} |
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} |
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fileFormatVersion: 1 |
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guid: 886fb4d7a67d4ce4bb7f51bcc38e20c1 |
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# Author |
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Matt Schoen <schoen@defectivestudios.com> of [Defective Studios](http://www.defectivestudios.com) |
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# Intro |
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I came across the need to send structured data to and from a server on one of my projects, and figured it would be worth my while to use JSON. When I looked into the issue, I tried a few of the C# implementations listed on http://json.org, but found them to be too complicated to work with and expand upon. So, I've written a very simple JSONObject class, which can be generically used to encode/decode data into a simple container. This page assumes that you know what JSON is, and how it works. It's rather simple, just go to json.org for a visual description of the encoding format. |
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As an aside, this class is pretty central to the AssetCloud content management system, from Defective Studios. |
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> **Update:** The code has been updated to version 1.4 to incorporate user-submitted patches and bug reports. This fixes issues dealing with whitespace in the format, as well as empty arrays and objects, and escaped quotes within strings. |
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# Usage |
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Users should not have to modify the JSONObject class themselves, and must follow the very simple proceedures outlined below: |
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Sample data (in JSON format): |
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```JSON |
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{ |
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"TestObject": { |
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"SomeText": "Blah", |
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"SomeObject": { |
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"SomeNumber": 42, |
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"SomeBool": true, |
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"SomeNull": null |
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}, |
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|
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"SomeEmptyObject": { }, |
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"SomeEmptyArray": [ ], |
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"EmbeddedObject": "{\"field\":\"Value with \\\"escaped quotes\\\"\"}" |
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} |
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} |
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``` |
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|
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## Features |
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|
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* Decode JSON-formatted strings into a usable data structure |
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* Encode structured data into a JSON-formatted string |
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* Interoperable with `Dictionary` and `WWWForm` |
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* Optimized `parse`/`stringify` functions -- minimal (unavoidable) garbage creation |
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* Asynchronous `stringify` function for serializing lots of data without frame drops |
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* `MaxDepth` parsing will skip over nested data that you don't need |
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* Special (non-compliant) `Baked` object type can store stringified data within parsed objects |
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* Copy to new `JSONObject` |
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* Merge with another `JSONObject` (experimental) |
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* Random access (with `int` or `string`) |
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* `ToString()` returns JSON data with optional "pretty" flag to include newlines and tabs |
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* Switch between double and float for numeric storage depending on level of precision needed (and to ensure that numbers are parsed/stringified correctly) |
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* Supports `Infinity` and `NaN` values |
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* `JSONTemplates` static class provides serialization functions for common classes like `Vector3`, `Matrix4x4` |
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* Object pool implementation (experimental) |
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* Handy `JSONChecker` window to test parsing on sample data |
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|
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It should be pretty obvious what this parser can and cannot do. If anyone reading this is a JSON buff (is there such a thing?) please feel free to expand and modify the parser to be more compliant. Currently I am using the .NET `System.Convert` namespace functions for parsing the data itself. It parses strings and numbers, which was all that I needed of it, but unless the formatting is supported by `System.Convert`, it may not incorporate all proper JSON strings. Also, having never written a JSON parser before, I don't doubt that I could improve the efficiency or correctness of the parser. It serves my purpose, and hopefully will help you with your project! Let me know if you make any improvements :) |
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Also, you JSON buffs (really, who would admit to being a JSON buff...) might also notice from my feature list that this thing isn't exactly to specifications. Here is where it differs: |
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* "a string" is considered valid JSON. There is an optional "strict" parameter to the parser which will bomb out on such input, in case that matters to you. |
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* The `Baked` mode is totally made up. |
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* The `MaxDepth` parsing is totally made up. |
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* `NaN` and `Infinity` aren't officially supported by JSON ([http://stackoverflow.com/questions/1423081/json-left-out-infinity-and-nan-json-status-in-ecmascript read more] about this issue... I lol'd @ the first comment on the first answer) |
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* I have no idea about edge cases in my parsing strategy. I have been using this code for about 3 years now and have only had to modify the parser because other people's use cases (still valid JSON) didn't parse correctly. In my experience, anything that this code generates is parsed just fine. |
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|
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## Encoding |
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|
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Encoding is something of a hard-coded process. This is because I have no idea what your data is! It would be great if this were some sort of interface for taking an entire class and encoding it's number/string fields, but it's not. I've come up with a few clever ways of using loops and/or recursive methods to cut down of the amount of code I have to write when I use this tool, but they're pretty project-specific. |
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Note: This section used to be WRONG! And now it's OLD! Will update later... this will all still work, but there are now a couple of ways to skin this cat. |
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|
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```C# |
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// Note: your data can only be numbers and strings. |
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// This is not a solution for object serialization |
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// or anything like that. |
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JSONObject j = new JSONObject(JSONObject.Type.OBJECT); |
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// number |
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j.AddField("field1", 0.5); |
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// string |
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j.AddField("field2", "sampletext"); |
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// array |
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JSONObject arr = new JSONObject(JSONObject.Type.ARRAY); |
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j.AddField("field3", arr); |
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|
||||
arr.Add(1); |
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arr.Add(2); |
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arr.Add(3); |
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|
||||
string encodedString = j.print(); |
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``` |
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|
||||
NEW! The constructor, Add, and AddField functions now support a nested delegate structure. This is useful if you need to create a nested JSONObject in a single line. For example: |
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|
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|
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```C# |
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DoRequest(URL, new JSONObject(delegate(JSONObject request) { |
||||
request.AddField("sort", delegate(JSONObject sort) { |
||||
sort.AddField("_timestamp", "desc"); |
||||
}); |
||||
request.AddField("query", new JSONObject(delegate(JSONObject query) { |
||||
query.AddField("match_all", JSONObject.obj); |
||||
})); |
||||
request.AddField("fields", delegate(JSONObject fields) { |
||||
fields.Add("_timestamp"); |
||||
}); |
||||
}).ToString()); |
||||
``` |
||||
|
||||
|
||||
## Decoding |
||||
|
||||
Decoding is much simpler on the input end, and again, what you do with the `JSONObject` will vary on a per-project basis. One of the more complicated way to extract the data is with a recursive function, as drafted below. Calling the constructor with a properly formatted JSON string will return the root object (or array) containing all of its children, in one neat reference! The data is in a public `ArrayList` called `list`, with a matching key list (called `keys`!) if the root is an `Object`. If that's confusing, take a glance over the following code and the `print()` method in the `JSONObject` class. If there is an error in the JSON formatting (or if there's an error with my code!) the debug console will read "improper JSON formatting". |
||||
|
||||
```C# |
||||
string encodedString = "{\"field1\": 0.5,\"field2\": \"sampletext\",\"field3\": [1,2,3]}"; |
||||
JSONObject j = new JSONObject(encodedString); |
||||
accessData(j); |
||||
//access data (and print it) |
||||
void accessData(JSONObject obj){ |
||||
switch(obj.type){ |
||||
case JSONObject.Type.OBJECT: |
||||
for(int i = 0; i < obj.list.Count; i++){ |
||||
string key = (string)obj.keys[i]; |
||||
JSONObject j = (JSONObject)obj.list[i]; |
||||
Debug.Log(key); |
||||
accessData(j); |
||||
} |
||||
break; |
||||
case JSONObject.Type.ARRAY: |
||||
foreach(JSONObject j in obj.list){ |
||||
accessData(j); |
||||
} |
||||
break; |
||||
case JSONObject.Type.STRING: |
||||
Debug.Log(obj.str); |
||||
break; |
||||
case JSONObject.Type.NUMBER: |
||||
Debug.Log(obj.n); |
||||
break; |
||||
case JSONObject.Type.BOOL: |
||||
Debug.Log(obj.b); |
||||
break; |
||||
case JSONObject.Type.NULL: |
||||
Debug.Log("NULL"); |
||||
break; |
||||
|
||||
} |
||||
} |
||||
``` |
||||
|
||||
NEW! Decoding now also supports a delegate format which will automatically check if a field exists before processing the data, providing an optional parameter for an OnFieldNotFound response. For example: |
||||
|
||||
```C# |
||||
new JSONObject(data); |
||||
list.GetField("hits", delegate(JSONObject hits) { |
||||
hits.GetField("hits", delegate(JSONObject hits2) { |
||||
foreach (JSONObject gameSession in hits2.list) { |
||||
Debug.Log(gameSession); |
||||
} |
||||
}); |
||||
}, delegate(string name) { //"name" will be equal to the name of the missing field. In this case, "hits" |
||||
Debug.LogWarning("no game sessions"); |
||||
}); |
||||
``` |
||||
|
||||
## Not So New! `(O(n))` Random access! |
||||
|
||||
I've added a string and int [] index to the class, so you can now retrieve data as such (from above): |
||||
|
||||
```C# |
||||
JSONObject arr = obj["field3"]; |
||||
Debug.log(arr[2].n); //Should ouptut "3" |
||||
``` |
||||
|
||||
## Change Log |
||||
|
||||
### v1.4 |
||||
Big update! |
||||
|
||||
* Better GC performance. Enough of that garbage! |
||||
* Remaining culprits are internal garbage from `StringBuilder.Append`/`AppendFormat`, `String.Substring`, `List.Add`/`GrowIfNeeded`, `Single.ToString` |
||||
* Added asynchronous `Stringily` function for serializing large amounts of data at runtime without frame drops |
||||
* Added `Baked` type |
||||
* Added `MaxDepth` to parsing function |
||||
* Various cleanup refactors recommended by ReSharper |
||||
|
||||
### v1.3.2 |
||||
* Added support for `NaN` |
||||
* Added strict mode to fail on purpose for improper formatting. Right now this just means that if the parse string doesn't start with `[` or `{`, it will print a warning and return a `null` `JSONObject`. |
||||
* Changed `infinity` and `NaN` implementation to use `float` and `double` instead of `Mathf` |
||||
* Handles empty objects/arrays better |
||||
* Added a flag to print and `ToString` to turn on/off pretty print. The define on top is now an override to system-wide disable |
||||
@ -0,0 +1,7 @@
|
||||
fileFormatVersion: 2 |
||||
guid: db6abf22260f8db43bc7e785f129ce0b |
||||
TextScriptImporter: |
||||
externalObjects: {} |
||||
userData: |
||||
assetBundleName: |
||||
assetBundleVariant: |
||||
@ -1,188 +0,0 @@
|
||||
==Author== |
||||
[mailto:schoen@defectivestudios.com Matt Schoen] of [http://www.defectivestudios.com Defective Studios] |
||||
|
||||
==Download== |
||||
[[Media:JSONObject.zip|Download JSONObject.zip]] |
||||
|
||||
= Intro = |
||||
I came across the need to send structured data to and from a server on one of my projects, and figured it would be worth my while to use JSON. When I looked into the issue, I tried a few of the C# implementations listed on [http://json.org json.org], but found them to be too complicated to work with and expand upon. So, I've written a very simple JSONObject class, which can be generically used to encode/decode data into a simple container. This page assumes that you know what JSON is, and how it works. It's rather simple, just go to json.org for a visual description of the encoding format. |
||||
|
||||
As an aside, this class is pretty central to the [[AssetCloud]] content management system, from Defective Studios. |
||||
|
||||
Update: The code has been updated to version 1.4 to incorporate user-submitted patches and bug reports. This fixes issues dealing with whitespace in the format, as well as empty arrays and objects, and escaped quotes within strings. |
||||
|
||||
= Usage = |
||||
Users should not have to modify the JSONObject class themselves, and must follow the very simple proceedures outlined below: |
||||
|
||||
Sample data (in JSON format): |
||||
<nowiki> |
||||
{ |
||||
"TestObject": { |
||||
"SomeText": "Blah", |
||||
"SomeObject": { |
||||
"SomeNumber": 42, |
||||
"SomeBool": true, |
||||
"SomeNull": null |
||||
}, |
||||
|
||||
"SomeEmptyObject": { }, |
||||
"SomeEmptyArray": [ ], |
||||
"EmbeddedObject": "{\"field\":\"Value with \\\"escaped quotes\\\"\"}" |
||||
} |
||||
}</nowiki> |
||||
|
||||
= Features = |
||||
|
||||
*Decode JSON-formatted strings into a usable data structure |
||||
*Encode structured data into a JSON-formatted string |
||||
*Interoperable with Dictionary and WWWForm |
||||
*Optimized parse/stringify functions -- minimal (unavoidable) garbage creation |
||||
*Asynchronous stringify function for serializing lots of data without frame drops |
||||
*MaxDepth parsing will skip over nested data that you don't need |
||||
*Special (non-compliant) "Baked" object type can store stringified data within parsed objects |
||||
*Copy to new JSONObject |
||||
*Merge with another JSONObject (experimental) |
||||
*Random access (with [int] or [string]) |
||||
*ToString() returns JSON data with optional "pretty" flag to include newlines and tabs |
||||
*Switch between double and float for numeric storage depending on level of precision needed (and to ensure that numbers are parsed/stringified correctly) |
||||
*Supports Infinity and NaN values |
||||
*JSONTemplates static class provides serialization functions for common classes like Vector3, Matrix4x4 |
||||
*Object pool implementation (experimental) |
||||
*Handy JSONChecker window to test parsing on sample data |
||||
|
||||
It should be pretty obvious what this parser can and cannot do. If anyone reading this is a JSON buff (is there such a thing?) please feel free to expand and modify the parser to be more compliant. Currently I am using the .NET System.Convert namespace functions for parsing the data itself. It parses strings and numbers, which was all that I needed of it, but unless the formatting is supported by System.Convert, it may not incorporate all proper JSON strings. Also, having never written a JSON parser before, I don't doubt that I could improve the efficiency or correctness of the parser. It serves my purpose, and hopefully will help you with your project! Let me know if you make any improvements :) |
||||
|
||||
Also, you JSON buffs (really, who would admit to being a JSON buff...) might also notice from my feature list that this thing isn't exactly to specifications. Here is where it differs: |
||||
*"a string" is considered valid JSON. There is an optional "strict" parameter to the parser which will bomb out on such input, in case that matters to you. |
||||
*The "Baked" mode is totally made up. |
||||
*The "MaxDepth" parsing is totally made up. |
||||
*NaN and Infinity aren't officially supported by JSON ([http://stackoverflow.com/questions/1423081/json-left-out-infinity-and-nan-json-status-in-ecmascript read more] about this issue... I lol'd @ the first comment on the first answer) |
||||
*I have no idea about edge cases in my parsing strategy. I have been using this code for about 3 years now and have only had to modify the parser because other people's use cases (still valid JSON) didn't parse correctly. In my experience, anything that this code generates is parsed just fine. |
||||
|
||||
== Encoding == |
||||
|
||||
Encoding is something of a hard-coded process. This is because I have no idea what your data is! It would be great if this were some sort of interface for taking an entire class and encoding it's number/string fields, but it's not. I've come up with a few clever ways of using loops and/or recursive methods to cut down of the amount of code I have to write when I use this tool, but they're pretty project-specific. |
||||
|
||||
Note: This section used to be WRONG! And now it's OLD! Will update later... this will all still work, but there are now a couple of ways to skin this cat. |
||||
|
||||
<syntaxhighlight lang="csharp"> |
||||
//Note: your data can only be numbers and strings. This is not a solution for object serialization or anything like that. |
||||
JSONObject j = new JSONObject(JSONObject.Type.OBJECT); |
||||
//number |
||||
j.AddField("field1", 0.5); |
||||
//string |
||||
j.AddField("field2", "sampletext"); |
||||
//array |
||||
JSONObject arr = new JSONObject(JSONObject.Type.ARRAY); |
||||
j.AddField("field3", arr); |
||||
|
||||
arr.Add(1); |
||||
arr.Add(2); |
||||
arr.Add(3); |
||||
|
||||
string encodedString = j.print(); |
||||
</syntaxhighlight> |
||||
|
||||
NEW! The constructor, Add, and AddField functions now support a nested delegate structure. This is useful if you need to create a nested JSONObject in a single line. For example: |
||||
<syntaxhighlight lang="csharp"> |
||||
DoRequest(URL, new JSONObject(delegate(JSONObject request) { |
||||
request.AddField("sort", delegate(JSONObject sort) { |
||||
sort.AddField("_timestamp", "desc"); |
||||
}); |
||||
request.AddField("query", new JSONObject(delegate(JSONObject query) { |
||||
query.AddField("match_all", JSONObject.obj); |
||||
})); |
||||
request.AddField("fields", delegate(JSONObject fields) { |
||||
fields.Add("_timestamp"); |
||||
}); |
||||
}).ToString()); |
||||
</syntaxhighlight> |
||||
|
||||
== Decoding == |
||||
Decoding is much simpler on the input end, and again, what you do with the JSONObject will vary on a per-project basis. One of the more complicated way to extract the data is with a recursive function, as drafted below. Calling the constructor with a properly formatted JSON string will return the root object (or array) containing all of its children, in one neat reference! The data is in a public ArrayList called list, with a matching key list (called keys!) if the root is an Object. If that's confusing, take a glance over the following code and the print() method in the JSONOBject class. If there is an error in the JSON formatting (or if there's an error with my code!) the debug console will read "improper JSON formatting". |
||||
|
||||
|
||||
<syntaxhighlight lang="csharp"> |
||||
string encodedString = "{\"field1\": 0.5,\"field2\": \"sampletext\",\"field3\": [1,2,3]}"; |
||||
JSONObject j = new JSONObject(encodedString); |
||||
accessData(j); |
||||
//access data (and print it) |
||||
void accessData(JSONObject obj){ |
||||
switch(obj.type){ |
||||
case JSONObject.Type.OBJECT: |
||||
for(int i = 0; i < obj.list.Count; i++){ |
||||
string key = (string)obj.keys[i]; |
||||
JSONObject j = (JSONObject)obj.list[i]; |
||||
Debug.Log(key); |
||||
accessData(j); |
||||
} |
||||
break; |
||||
case JSONObject.Type.ARRAY: |
||||
foreach(JSONObject j in obj.list){ |
||||
accessData(j); |
||||
} |
||||
break; |
||||
case JSONObject.Type.STRING: |
||||
Debug.Log(obj.str); |
||||
break; |
||||
case JSONObject.Type.NUMBER: |
||||
Debug.Log(obj.n); |
||||
break; |
||||
case JSONObject.Type.BOOL: |
||||
Debug.Log(obj.b); |
||||
break; |
||||
case JSONObject.Type.NULL: |
||||
Debug.Log("NULL"); |
||||
break; |
||||
|
||||
} |
||||
} |
||||
</syntaxhighlight> |
||||
|
||||
NEW! Decoding now also supports a delegate format which will automatically check if a field exists before processing the data, providing an optional parameter for an OnFieldNotFound response. For example: |
||||
<syntaxhighlight lang="csharp"> |
||||
new JSONObject(data); |
||||
list.GetField("hits", delegate(JSONObject hits) { |
||||
hits.GetField("hits", delegate(JSONObject hits2) { |
||||
foreach (JSONObject gameSession in hits2.list) { |
||||
Debug.Log(gameSession); |
||||
} |
||||
}); |
||||
}, delegate(string name) { //"name" will be equal to the name of the missing field. In this case, "hits" |
||||
Debug.LogWarning("no game sessions"); |
||||
}); |
||||
</syntaxhighlight> |
||||
|
||||
===Not So New! (O(n)) Random access!=== |
||||
I've added a string and int [] index to the class, so you can now retrieve data as such (from above): |
||||
<syntaxhighlight lang="csharp"> |
||||
JSONObject arr = obj["field3"]; |
||||
Debug.log(arr[2].n); //Should ouptut "3" |
||||
</syntaxhighlight> |
||||
|
||||
---- |
||||
|
||||
---Code omitted from readme--- |
||||
|
||||
=Change Log= |
||||
==v1.4== |
||||
Big update! |
||||
*Better GC performance. Enough of that garbage! |
||||
**Remaining culprits are internal garbage from StringBuilder.Append/AppendFormat, String.Substring, List.Add/GrowIfNeeded, Single.ToString |
||||
*Added asynchronous Stringify function for serializing large amounts of data at runtime without frame drops |
||||
*Added Baked type |
||||
*Added MaxDepth to parsing function |
||||
*Various cleanup refactors recommended by ReSharper |
||||
|
||||
==v1.3.2== |
||||
*Added support for NaN |
||||
*Added strict mode to fail on purpose for improper formatting. Right now this just means that if the parse string doesn't start with [ or {, it will print a warning and return a null JO. |
||||
*Changed infinity and NaN implementation to use float and double instead of Mathf |
||||
*Handles empty objects/arrays better |
||||
*Added a flag to print and ToString to turn on/off pretty print. The define on top is now an override to system-wide disable |
||||
==Earlier Versions== |
||||
I'll fill these in later... |
||||
[[Category:C Sharp]] |
||||
[[Category:Scripts]] |
||||
[[Category:Utility]] |
||||
[[Category:JSON]] |
||||
Loading…
Reference in new issue