-
Notifications
You must be signed in to change notification settings - Fork 101
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #44 from mukunku/v2.3.4
v2.3.4
- Loading branch information
Showing
7 changed files
with
159 additions
and
78 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| using Apache.Arrow.Ipc; | ||
| using Apache.Arrow.Types; | ||
| using Newtonsoft.Json; | ||
| using Newtonsoft.Json.Linq; | ||
| using Parquet.Thrift; | ||
| using System; | ||
|
|
||
| namespace Utilities | ||
| { | ||
| public static class ParquetMetadataAnalyzers | ||
| { | ||
| public static string ApacheArrowToJSON(string base64) | ||
| { | ||
| try | ||
| { | ||
| byte[] bytes = Convert.FromBase64String(base64); | ||
| using (ArrowStreamReader reader = new ArrowStreamReader(bytes)) | ||
| { | ||
| reader.ReadNextRecordBatch(); | ||
| return JsonConvert.SerializeObject(reader.Schema, Formatting.Indented); | ||
|
|
||
| var metadata = new JObject(); | ||
| var schema = new JObject(); | ||
|
|
||
| var fields = new JArray(); | ||
| if (reader.Schema?.Fields != null) | ||
| { | ||
| foreach (var _field in reader.Schema.Fields) | ||
| { | ||
| var field = new JObject(); | ||
| field[nameof(_field.Value.Name)] = _field.Value.Name; | ||
| field[nameof(_field.Value.IsNullable)] = _field.Value.IsNullable; | ||
| field[nameof(_field.Value.DataType)] = JObject.Parse(JsonConvert.SerializeObject(_field.Value.DataType)); | ||
|
|
||
| if (_field.Value.HasMetadata) | ||
| { | ||
| metadata = new JObject(); | ||
| foreach (var _fieldMetadata in _field.Value.Metadata) | ||
| { | ||
| metadata[_fieldMetadata.Key] = _fieldMetadata.Value; | ||
| } | ||
| field[nameof(metadata)] = metadata; | ||
| } | ||
|
|
||
| fields.Add(field); | ||
| } | ||
| } | ||
| schema[nameof(fields)] = fields; | ||
|
|
||
| metadata = new JObject(); | ||
| if (reader.Schema?.Metadata != null) | ||
| { | ||
| foreach (var _metadata in reader.Schema.Metadata) | ||
| { | ||
| metadata[_metadata.Key] = _metadata.Value; | ||
| } | ||
| } | ||
| schema[nameof(metadata)] = metadata; | ||
|
|
||
| return schema.ToString(Formatting.Indented); | ||
| } | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| return $"Something went wrong while processing the schema:{Environment.NewLine}{Environment.NewLine}{ex.ToString()}"; | ||
| } | ||
| } | ||
|
|
||
| public static string ThriftMetadataToJSON(FileMetaData thriftMetadata) | ||
| { | ||
| try | ||
| { | ||
| var jsonObject = new JObject(); | ||
| jsonObject[nameof(thriftMetadata.Version)] = thriftMetadata.Version; | ||
| jsonObject[nameof(thriftMetadata.Num_rows)] = thriftMetadata.Num_rows; | ||
| jsonObject[nameof(thriftMetadata.Created_by)] = thriftMetadata.Created_by; | ||
|
|
||
| var schemas = new JArray(); | ||
| foreach (var schema in thriftMetadata.Schema) | ||
| { | ||
| if ("schema".Equals(schema.Name) && schemas.Count == 0) | ||
| continue; | ||
|
|
||
| var schemaObject = new JObject(); | ||
| schemaObject[nameof(schema.Field_id)] = schema.Field_id; | ||
| schemaObject[nameof(schema.Name)] = schema.Name; | ||
| schemaObject[nameof(schema.Type)] = schema.Type.ToString(); | ||
| schemaObject[nameof(schema.Type_length)] = schema.Type_length; | ||
| schemaObject[nameof(schema.LogicalType)] = schema.LogicalType?.ToString(); | ||
| schemaObject[nameof(schema.Scale)] = schema.Scale; | ||
| schemaObject[nameof(schema.Precision)] = schema.Precision; | ||
| schemaObject[nameof(schema.Repetition_type)] = schema.Repetition_type.ToString(); | ||
| schemaObject[nameof(schema.Converted_type)] = schema.Converted_type.ToString(); | ||
|
|
||
| schemas.Add(schemaObject); | ||
| } | ||
| jsonObject[nameof(thriftMetadata.Schema)] = schemas; | ||
|
|
||
| return jsonObject.ToString(Formatting.Indented); | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| return $"Something went wrong while processing the schema:{Environment.NewLine}{Environment.NewLine}{ex.ToString()}"; | ||
| } | ||
| } | ||
|
|
||
| public static string PandasSchemaToJSON(string pandas) | ||
| { | ||
| try | ||
| { | ||
| //Pandas is already json; so just make it pretty. | ||
| return JValue.Parse(pandas).ToString(Formatting.Indented); | ||
| } | ||
| catch (Exception) | ||
| { | ||
| //malformed json detected | ||
| return pandas; | ||
| } | ||
| } | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
|
|
||
| <PropertyGroup> | ||
| <TargetFramework>netstandard2.0</TargetFramework> | ||
| </PropertyGroup> | ||
|
|
||
| <ItemGroup> | ||
| <PackageReference Include="Apache.Arrow" Version="5.0.0" /> | ||
| <PackageReference Include="Newtonsoft.Json" Version="13.0.1" /> | ||
| <PackageReference Include="Parquet.Net" Version="3.8.6" /> | ||
| </ItemGroup> | ||
|
|
||
| </Project> |