要使用Avro模式对非结构化数据进行随机名称生成,可以按照以下步骤进行解决:
{
"type": "record",
"name": "RandomName",
"fields": [
{"name": "id", "type": "int"},
{"name": "name", "type": "string"}
]
}
import org.apache.avro.Schema;
import org.apache.avro.generic.GenericData;
import org.apache.avro.generic.GenericRecord;
import org.apache.avro.io.DatumWriter;
import org.apache.avro.io.Encoder;
import org.apache.avro.io.EncoderFactory;
import org.apache.avro.specific.SpecificDatumWriter;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
public class RandomNameGenerator {
public static void main(String[] args) throws IOException {
// 定义Avro模式
String avroSchemaString = "{\"type\":\"record\",\"name\":\"RandomName\",\"fields\":[{\"name\":\"id\",\"type\":\"int\"},{\"name\":\"name\",\"type\":\"string\"}]}";
Schema.Parser parser = new Schema.Parser();
Schema avroSchema = parser.parse(avroSchemaString);
// 生成随机名称数据
GenericRecord randomNameRecord = new GenericData.Record(avroSchema);
randomNameRecord.put("id", 1);
randomNameRecord.put("name", getRandomName());
// 将Avro记录编码为字节数组
DatumWriter writer = new SpecificDatumWriter<>(avroSchema);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
Encoder encoder = EncoderFactory.get().binaryEncoder(outputStream, null);
writer.write(randomNameRecord, encoder);
encoder.flush();
outputStream.close();
byte[] avroBytes = outputStream.toByteArray();
System.out.println("Generated Avro bytes: " + avroBytes);
}
private static String getRandomName() {
// 在此处实现生成随机名称的逻辑
return "John Doe";
}
}
请注意,上述代码中的getRandomName()
方法需要根据实际需求实现生成随机名称的逻辑。
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