private static GenericRecord mkRecord(object[] kv, RecordSchema s)
{
GenericRecord input = new GenericRecord(s);
for (int i = 0; i < kv.Length; i += 2)
{
string fieldName = (string)kv[i];
object fieldValue = kv[i + 1];
Schema inner = s[fieldName].Schema;
if (inner is EnumSchema)
{
GenericEnum ge = new GenericEnum(inner as EnumSchema, (string)fieldValue);
fieldValue = ge;
}
else if (inner is FixedSchema)
{
GenericFixed gf = new GenericFixed(inner as FixedSchema);
gf.Value = (byte[])fieldValue;
fieldValue = gf;
}
input.Add(fieldName, fieldValue);
}
return(input);
}
public void EnumGenericTest()
{
var enumSchema = AvroParser.ReadSchema <EnumSchema>(@"{""name"":""Avro.Test.Generic.TestEnum"",""type"":""enum"",""symbols"":[""A"",""B"",""C""]}");
var writer = new DatumWriter <GenericEnum>(enumSchema);
var reader = new DatumReader <GenericEnum>(enumSchema, enumSchema);
var expectedValue = new GenericEnum(enumSchema, "B");
using (var stream = new MemoryStream())
using (var encoder = new BinaryEncoder(stream))
using (var decoder = new BinaryDecoder(stream))
{
writer.Write(encoder, expectedValue);
stream.Seek(0, SeekOrigin.Begin);
var actualValue = reader.Read(decoder);
Assert.AreEqual(expectedValue, actualValue);
var expectedPosition = stream.Position;
stream.Seek(0, SeekOrigin.Begin);
reader.Skip(decoder);
Assert.AreEqual(expectedPosition, stream.Position);
}
}
private JToken EncodeEnum(
EnumSchema schema,
GenericEnum value)
{
return(new JValue(value.Value));
}
public void TestSimple()
{
var schema = AvroParser.ReadSchema(@"{
""name"":""Test.Foobar.Record.Thing"",
""type"":""record"",
""fields"":[
{""name"":""ID"",""type"":""int""},
{""name"":""Name"",""type"":""string""},
{""name"":""Nuller"",""type"":""null""},
{""name"":""family"",""type"":{
""type"":""map"",""values"":""string""
}},
{""name"":""stuff"",""type"":{
""name"":""stuffs"",
""type"":""record"",
""fields"":[
{""name"":""key"",""type"":""bytes""},
{""name"":""keytype"",""type"":{
""name"":""keyenum"",
""type"":""enum"",
""symbols"":[""ANALOG"",""DIGITAL""]
}}
]
}},
{""name"":""NullableThing"",""type"":[""null"",""string""]},
{""name"":""Tags"",""type"":{
""type"":""array"",""items"":""string""
}}
]
}") as RecordSchema;
var stuffSchema = schema.First(r => r.Name == "stuff").Type as RecordSchema;
var enumSchema = stuffSchema.First(r => r.Name == "keytype").Type as EnumSchema;
var genericRecord = new GenericRecord(schema);
var reader = new DatumReader <GenericRecord>(schema);
var writer = new DatumWriter <GenericRecord>(schema);
var delimiter = Environment.NewLine;
var stringBuilder = new StringBuilder();
using (var stream = new StringWriter(stringBuilder))
using (var encoder = new JsonEncoder(stream, schema, delimiter))
{
for (int i = 0; i < 10; i++)
{
var record = new GenericRecord(genericRecord);
record[0] = i;
record[1] = $"foo{i}";
record[2] = null;
record[3] = new Dictionary <string, string>()
{
{ "Brother", "John" }
};
var stuffRecord = new GenericRecord(stuffSchema);
var keyEnum = new GenericEnum(enumSchema, i % enumSchema.Symbols.Count);
stuffRecord[0] = Guid.NewGuid().ToByteArray();
stuffRecord[1] = keyEnum;
record[4] = stuffRecord;
record[5] = (i % 2) == 0 ? "ToNullOrNotToNull" : null;
record[6] = new List <string> {
};
writer.Write(encoder, record);
var singleJson = stringBuilder.ToString();
}
}
var allJson = stringBuilder.ToString();
using (var stream = new StringReader(allJson))
using (var decoder = new JsonDecoder(stream, schema, delimiter))
{
for (int i = 0; i < 10; i++)
{
var record = reader.Read(decoder);
Debug.WriteLine(record.ToString());
}
}
}
static void GenerateInteropData(string schemaPath, string outputDir)
{
RecordSchema schema = null;
using (var reader = new StreamReader(schemaPath))
{
schema = Schema.Parse(reader.ReadToEnd()) as RecordSchema;
}
var mapFieldSchema = (schema.Fields.Find(x => x.Name == "mapField").Schema as MapSchema).ValueSchema as RecordSchema;
var mapFieldRecord0 = new GenericRecord(mapFieldSchema);
var mapFieldRecord1 = new GenericRecord(mapFieldSchema);
mapFieldRecord0.Add("label", "a");
mapFieldRecord1.Add("label", "cee");
var mapFieldValue = new Dictionary <string, GenericRecord>
{
{ "a", mapFieldRecord0 },
{ "bee", mapFieldRecord1 }
};
var enumFieldValue = new GenericEnum(schema.Fields.Find(x => x.Name == "enumField").Schema as EnumSchema, "C");
var fixedFieldValue = new GenericFixed(
schema.Fields.Find(x => x.Name == "fixedField").Schema as FixedSchema,
Encoding.ASCII.GetBytes("1019181716151413"));
var nodeSchema = schema.Fields.Find(x => x.Name == "recordField").Schema as RecordSchema;
var recordFieldValue = new GenericRecord(nodeSchema);
var innerRecordFieldValue = new GenericRecord(nodeSchema);
innerRecordFieldValue.Add("label", "inner");
innerRecordFieldValue.Add("children", new GenericRecord[] { });
recordFieldValue.Add("label", "blah");
recordFieldValue.Add("children", new GenericRecord[] { innerRecordFieldValue });
GenericRecord record = new GenericRecord(schema);
record.Add("intField", 12);
record.Add("longField", 15234324L);
record.Add("stringField", "hey");
record.Add("boolField", true);
record.Add("floatField", 1234.0f);
record.Add("doubleField", -1234.0);
record.Add("bytesField", Encoding.UTF8.GetBytes("12312adf"));
record.Add("nullField", null);
record.Add("arrayField", new double[] { 5.0, 0.0, 12.0 });
record.Add("mapField", mapFieldValue);
record.Add("unionField", 12.0);
record.Add("enumField", enumFieldValue);
record.Add("fixedField", fixedFieldValue);
record.Add("recordField", recordFieldValue);
var datumWriter = new GenericDatumWriter <GenericRecord>(schema);
foreach (var codecName in InteropDataConstants.SupportedCodecNames)
{
var outputFile = "csharp.avro";
if (codecName != DataFileConstants.NullCodec)
{
outputFile = string.Format("csharp_{0}.avro", codecName);
}
var outputPath = Path.Combine(outputDir, outputFile);
var codec = Codec.CreateCodecFromString(codecName);
using (var dataFileWriter = DataFileWriter <GenericRecord> .OpenWriter(datumWriter, outputPath, codec))
{
dataFileWriter.Append(record);
}
}
}