diff options
author | Jesse Plamondon-Willard <github@jplamondonw.com> | 2017-10-14 11:44:02 -0400 |
---|---|---|
committer | Jesse Plamondon-Willard <github@jplamondonw.com> | 2017-10-14 11:44:02 -0400 |
commit | 79118316065a01322d8ea12a14589ec016794c32 (patch) | |
tree | 7a26668a66ea0630a2b9367ac820fe7a6d99ac77 /src/SMAPI/Framework/Serialisation | |
parent | af1a2bde8219c5d4b8660b13702725626a4a5647 (diff) | |
parent | 8aec1eff99858716afe7b8604b512181f78c214f (diff) | |
download | SMAPI-79118316065a01322d8ea12a14589ec016794c32.tar.gz SMAPI-79118316065a01322d8ea12a14589ec016794c32.tar.bz2 SMAPI-79118316065a01322d8ea12a14589ec016794c32.zip |
Merge branch 'develop' into stable
Diffstat (limited to 'src/SMAPI/Framework/Serialisation')
3 files changed, 254 insertions, 0 deletions
diff --git a/src/SMAPI/Framework/Serialisation/JsonHelper.cs b/src/SMAPI/Framework/Serialisation/JsonHelper.cs new file mode 100644 index 00000000..3193aa3c --- /dev/null +++ b/src/SMAPI/Framework/Serialisation/JsonHelper.cs @@ -0,0 +1,96 @@ +using System; +using System.Collections.Generic; +using System.IO; +using Microsoft.Xna.Framework.Input; +using Newtonsoft.Json; +using StardewModdingAPI.Utilities; + +namespace StardewModdingAPI.Framework.Serialisation +{ + /// <summary>Encapsulates SMAPI's JSON file parsing.</summary> + internal class JsonHelper + { + /********* + ** Accessors + *********/ + /// <summary>The JSON settings to use when serialising and deserialising files.</summary> + private readonly JsonSerializerSettings JsonSettings = new JsonSerializerSettings + { + Formatting = Formatting.Indented, + ObjectCreationHandling = ObjectCreationHandling.Replace, // avoid issue where default ICollection<T> values are duplicated each time the config is loaded + Converters = new List<JsonConverter> + { + new SelectiveStringEnumConverter(typeof(Buttons), typeof(Keys), typeof(SButton)) + } + }; + + + /********* + ** Public methods + *********/ + /// <summary>Read a JSON file.</summary> + /// <typeparam name="TModel">The model type.</typeparam> + /// <param name="fullPath">The absolete file path.</param> + /// <returns>Returns the deserialised model, or <c>null</c> if the file doesn't exist or is empty.</returns> + /// <exception cref="InvalidOperationException">The given path is empty or invalid.</exception> + public TModel ReadJsonFile<TModel>(string fullPath) + where TModel : class + { + // validate + if (string.IsNullOrWhiteSpace(fullPath)) + throw new ArgumentException("The file path is empty or invalid.", nameof(fullPath)); + + // read file + string json; + try + { + json = File.ReadAllText(fullPath); + } + catch (Exception ex) when (ex is DirectoryNotFoundException || ex is FileNotFoundException) + { + return null; + } + + // deserialise model + try + { + return JsonConvert.DeserializeObject<TModel>(json, this.JsonSettings); + } + catch (JsonReaderException ex) + { + string message = $"The file at {fullPath} doesn't seem to be valid JSON."; + + string text = File.ReadAllText(fullPath); + if (text.Contains("“") || text.Contains("”")) + message += " Found curly quotes in the text; note that only straight quotes are allowed in JSON."; + + message += $"\nTechnical details: {ex.Message}"; + throw new JsonReaderException(message); + } + } + + /// <summary>Save to a JSON file.</summary> + /// <typeparam name="TModel">The model type.</typeparam> + /// <param name="fullPath">The absolete file path.</param> + /// <param name="model">The model to save.</param> + /// <exception cref="InvalidOperationException">The given path is empty or invalid.</exception> + public void WriteJsonFile<TModel>(string fullPath, TModel model) + where TModel : class + { + // validate + if (string.IsNullOrWhiteSpace(fullPath)) + throw new ArgumentException("The file path is empty or invalid.", nameof(fullPath)); + + // create directory if needed + string dir = Path.GetDirectoryName(fullPath); + if (dir == null) + throw new ArgumentException("The file path is invalid.", nameof(fullPath)); + if (!Directory.Exists(dir)) + Directory.CreateDirectory(dir); + + // write file + string json = JsonConvert.SerializeObject(model, this.JsonSettings); + File.WriteAllText(fullPath, json); + } + } +} diff --git a/src/SMAPI/Framework/Serialisation/SFieldConverter.cs b/src/SMAPI/Framework/Serialisation/SFieldConverter.cs new file mode 100644 index 00000000..917c950d --- /dev/null +++ b/src/SMAPI/Framework/Serialisation/SFieldConverter.cs @@ -0,0 +1,121 @@ +using System; +using System.Collections.Generic; +using Newtonsoft.Json; +using Newtonsoft.Json.Linq; +using StardewModdingAPI.Framework.Exceptions; +using StardewModdingAPI.Framework.Models; + +namespace StardewModdingAPI.Framework.Serialisation +{ + /// <summary>Overrides how SMAPI reads and writes <see cref="ISemanticVersion"/> and <see cref="IManifestDependency"/> fields.</summary> + internal class SFieldConverter : JsonConverter + { + /********* + ** Accessors + *********/ + /// <summary>Whether this converter can write JSON.</summary> + public override bool CanWrite => false; + + + /********* + ** Public methods + *********/ + /// <summary>Get whether this instance can convert the specified object type.</summary> + /// <param name="objectType">The object type.</param> + public override bool CanConvert(Type objectType) + { + return + objectType == typeof(ISemanticVersion) + || objectType == typeof(IManifestDependency[]) + || objectType == typeof(ModDataID) + || objectType == typeof(ModCompatibility[]); + } + + /// <summary>Reads the JSON representation of the object.</summary> + /// <param name="reader">The JSON reader.</param> + /// <param name="objectType">The object type.</param> + /// <param name="existingValue">The object being read.</param> + /// <param name="serializer">The calling serializer.</param> + public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer) + { + // semantic version + if (objectType == typeof(ISemanticVersion)) + { + JToken token = JToken.Load(reader); + switch (token.Type) + { + case JTokenType.Object: + { + JObject obj = (JObject)token; + int major = obj.Value<int>(nameof(ISemanticVersion.MajorVersion)); + int minor = obj.Value<int>(nameof(ISemanticVersion.MinorVersion)); + int patch = obj.Value<int>(nameof(ISemanticVersion.PatchVersion)); + string build = obj.Value<string>(nameof(ISemanticVersion.Build)); + return new SemanticVersion(major, minor, patch, build); + } + + case JTokenType.String: + { + string str = token.Value<string>(); + if (string.IsNullOrWhiteSpace(str)) + return null; + if (!SemanticVersion.TryParse(str, out ISemanticVersion version)) + throw new SParseException($"Can't parse semantic version from invalid value '{str}', should be formatted like 1.2, 1.2.30, or 1.2.30-beta."); + return version; + } + + default: + throw new SParseException($"Can't parse semantic version from {token.Type}, must be an object or string."); + } + } + + // manifest dependencies + if (objectType == typeof(IManifestDependency[])) + { + List<IManifestDependency> result = new List<IManifestDependency>(); + foreach (JObject obj in JArray.Load(reader).Children<JObject>()) + { + string uniqueID = obj.Value<string>(nameof(IManifestDependency.UniqueID)); + string minVersion = obj.Value<string>(nameof(IManifestDependency.MinimumVersion)); + bool required = obj.Value<bool?>(nameof(IManifestDependency.IsRequired)) ?? true; + result.Add(new ManifestDependency(uniqueID, minVersion, required)); + } + return result.ToArray(); + } + + // mod data ID + if (objectType == typeof(ModDataID)) + { + JToken token = JToken.Load(reader); + return new ModDataID(token.Value<string>()); + } + + // mod compatibility records + if (objectType == typeof(ModCompatibility[])) + { + List<ModCompatibility> result = new List<ModCompatibility>(); + foreach (JProperty property in JObject.Load(reader).Properties()) + { + string range = property.Name; + ModStatus status = (ModStatus)Enum.Parse(typeof(ModStatus), property.Value.Value<string>(nameof(ModCompatibility.Status))); + string reasonPhrase = property.Value.Value<string>(nameof(ModCompatibility.ReasonPhrase)); + + result.Add(new ModCompatibility(range, status, reasonPhrase)); + } + return result.ToArray(); + } + + // unknown + throw new NotSupportedException($"Unknown type '{objectType?.FullName}'."); + } + + /// <summary>Writes the JSON representation of the object.</summary> + /// <param name="writer">The JSON writer.</param> + /// <param name="value">The value.</param> + /// <param name="serializer">The calling serializer.</param> + public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer) + { + throw new InvalidOperationException("This converter does not write JSON."); + } + } +} diff --git a/src/SMAPI/Framework/Serialisation/SelectiveStringEnumConverter.cs b/src/SMAPI/Framework/Serialisation/SelectiveStringEnumConverter.cs new file mode 100644 index 00000000..37108556 --- /dev/null +++ b/src/SMAPI/Framework/Serialisation/SelectiveStringEnumConverter.cs @@ -0,0 +1,37 @@ +using System; +using System.Collections.Generic; +using System.Linq; +using Newtonsoft.Json.Converters; + +namespace StardewModdingAPI.Framework.Serialisation +{ + /// <summary>A variant of <see cref="StringEnumConverter"/> which only converts certain enums.</summary> + internal class SelectiveStringEnumConverter : StringEnumConverter + { + /********* + ** Properties + *********/ + /// <summary>The enum type names to convert.</summary> + private readonly HashSet<string> Types; + + + /********* + ** Public methods + *********/ + /// <summary>Construct an instance.</summary> + /// <param name="types">The enum types to convert.</param> + public SelectiveStringEnumConverter(params Type[] types) + { + this.Types = new HashSet<string>(types.Select(p => p.FullName)); + } + + /// <summary>Get whether this instance can convert the specified object type.</summary> + /// <param name="type">The object type.</param> + public override bool CanConvert(Type type) + { + return + base.CanConvert(type) + && this.Types.Contains((Nullable.GetUnderlyingType(type) ?? type).FullName); + } + } +} |