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139 changes: 139 additions & 0 deletions
139
src/RestSharp.Serializers.CsvHelper/CsvHelperSerializer.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| using CsvHelper; | ||
| using CsvHelper.Configuration; | ||
| using System.Collections; | ||
| using System.Globalization; | ||
| using System.Reflection; | ||
|
|
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| namespace RestSharp.Serializers.CsvHelper { | ||
| public class CsvHelperSerializer : IDeserializer, IRestSerializer, ISerializer { | ||
| private const string TextCsvContentType = "text/csv"; | ||
|
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| private readonly CsvConfiguration _configuration; | ||
|
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| public ISerializer Serializer { | ||
| get { | ||
| return this; | ||
| } | ||
| } | ||
|
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| public IDeserializer Deserializer { | ||
| get { | ||
| return this; | ||
| } | ||
| } | ||
|
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| public string[] AcceptedContentTypes { | ||
| get { | ||
| return new string[] { TextCsvContentType, "application/x-download" }; | ||
| } | ||
| } | ||
|
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| public SupportsContentType SupportsContentType { | ||
| get { | ||
| return x => Array.IndexOf(AcceptedContentTypes, x) != -1 || x.Contains("csv"); | ||
| } | ||
| } | ||
|
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| public DataFormat DataFormat { | ||
| get { | ||
| return DataFormat.None; | ||
| } | ||
| } | ||
|
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| public string ContentType { get; set; } = TextCsvContentType; | ||
|
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| public CsvHelperSerializer() { | ||
| _configuration = new CsvConfiguration(CultureInfo.InvariantCulture); | ||
| } | ||
|
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| public CsvHelperSerializer(CsvConfiguration configuration) { | ||
| _configuration = configuration; | ||
| } | ||
|
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| public T? Deserialize<T>(RestResponse response) { | ||
| try { | ||
| if (response.Content == null) { | ||
| throw new InvalidOperationException(message: "Response content is null"); | ||
| } | ||
| else { | ||
| using (StringReader stringReader = new StringReader(response.Content)) | ||
| using (CsvReader csvReader = new CsvReader(stringReader, CultureInfo.CurrentCulture)) { | ||
| Type? @interface = typeof(T).GetInterface("IEnumerable`1"); | ||
|
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| if (@interface == null) { | ||
| csvReader.Read(); | ||
|
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| return csvReader.GetRecord<T>(); | ||
| } | ||
| else { | ||
| Type itemType = @interface.GenericTypeArguments[0]; | ||
| T result; | ||
|
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| try { | ||
| result = Activator.CreateInstance<T>(); | ||
| } | ||
| catch (MissingMethodException) { | ||
| throw new InvalidOperationException(message: "The type must contain a public, parameterless constructor."); | ||
| } | ||
|
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| MethodInfo? method = typeof(T).GetMethod(name: "Add"); | ||
|
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| if (method == null) { | ||
| throw new InvalidOperationException(message: "If the type implements IEnumerable<T>, then it must contain a public \"Add(T)\" method."); | ||
| } | ||
| else { | ||
| foreach (object record in csvReader.GetRecords(itemType)) { | ||
| method.Invoke(result, new object[] | ||
| { | ||
| record | ||
| }); | ||
| } | ||
| } | ||
|
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| return result; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| catch (Exception exception) { | ||
| throw new DeserializationException(response, exception); | ||
| } | ||
| } | ||
|
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| public string? Serialize(Parameter parameter) { | ||
| return Serialize(parameter.Value); | ||
| } | ||
|
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| public string? Serialize(object? obj) { | ||
| if (obj == null) { | ||
| return null; | ||
| } | ||
| else { | ||
| using (StringWriter stringWriter = new StringWriter()) | ||
| using (CsvWriter csvWriter = new CsvWriter(stringWriter, _configuration)) { | ||
| if (obj is IEnumerable records) { | ||
| IEnumerator enumerator = records.GetEnumerator(); | ||
|
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| if (enumerator.MoveNext()) { | ||
| csvWriter.WriteHeader(enumerator.Current.GetType()); | ||
| csvWriter.NextRecord(); | ||
| csvWriter.WriteRecords(records); | ||
| } | ||
|
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| if (enumerator is IDisposable disposable) { | ||
| disposable.Dispose(); | ||
| } | ||
| } | ||
| else { | ||
| csvWriter.WriteHeader(obj.GetType()); | ||
| csvWriter.NextRecord(); | ||
| csvWriter.WriteRecord(obj); | ||
| csvWriter.NextRecord(); | ||
| } | ||
|
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| return stringWriter.ToString(); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
14 changes: 14 additions & 0 deletions
14
src/RestSharp.Serializers.CsvHelper/RestClientExtensions.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| using CsvHelper.Configuration; | ||
|
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| namespace RestSharp.Serializers.CsvHelper { | ||
| [PublicAPI] | ||
| public static class RestClientExtensions { | ||
| public static RestClient UseCsvHelper(this RestClient client) { | ||
| return client.UseSerializer<CsvHelperSerializer>(); | ||
| } | ||
|
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| public static RestClient UseCsvHelper(this RestClient client, CsvConfiguration configuration) { | ||
| return client.UseSerializer(() => new CsvHelperSerializer(configuration)); | ||
| } | ||
| } | ||
| } |
11 changes: 11 additions & 0 deletions
11
src/RestSharp.Serializers.CsvHelper/RestSharp.Serializers.CsvHelper.csproj
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| @@ -0,0 +1,11 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
|
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| <ItemGroup> | ||
| <PackageReference Include="CsvHelper" Version="28.0.1" /> | ||
| </ItemGroup> | ||
|
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| <ItemGroup> | ||
| <ProjectReference Include="..\RestSharp\RestSharp.csproj" /> | ||
| </ItemGroup> | ||
|
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| </Project> |
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