Apache Avro未生成UUID

Question

无论我尝试了什么，Avro都不会在代码中为字段生成UUID类。

版本：1.8.2

我试图用这样的模式生成UUID：

  "type": "record",
  "name": "RecordWithUUID",
  "namespace": "avro",
  "fields": [
    {
      "name": "uuid",
      "type": {
        "type": "string",
        "logicalType": "uuid"
      }
    }
  ]
}

这是来自Avro项目测试类的类TestReflectLogicalTypes：RecordWithUUID，简而言之，这是Avro用来测试其代码功能的模式示例，我希望它能正常工作。

我这样运行，从我的方案中获取java代码：

java-jaravro-tools-1.8.2.jar编译模式my_scheme.avsc。

java-jaravro-tools-1.9.1.jar编译模式my_scheme.avsc。

来自Avro的初始类代码如下所示：

class RecordWithUUID {
  UUID uuid; // <- UUID (!!!)

  @Override
  public int hashCode() {
    return uuid.hashCode();
  }

  @Override
  public boolean equals(Object obj) {
    if (obj == null) {
      return false;
    }
    if (!(obj instanceof RecordWithUUID)) {
      return false;
    }
    RecordWithUUID that = (RecordWithUUID) obj;
    return this.uuid.equals(that.uuid);
  }
}

下面是我生成后得到的代码：

1.8.2命令行中的avro工具

  ..

@SuppressWarnings("all")
@org.apache.avro.specific.AvroGenerated
public class RecordWithUUID extends org.apache.avro.specific.SpecificRecordBase implements org.apache.avro.specific.SpecificRecord {
  private static final long serialVersionUID = 9147582668665082277L;
  public static final org.apache.avro.Schema SCHEMA$ = new org.apache.avro.Schema.Parser().parse("{\"type\":\"record\",\"name\":\"RecordWithUUID\",\"namespace\":\"avro\",\"fields\":[{\"name\":\"uuid\",\"type\":{\"type\":\"string\",\"logicalType\":\"uuid\"}}]}");
  public static org.apache.avro.Schema getClassSchema() { return SCHEMA$; }

  ..

  @Deprecated public java.lang.CharSequence uuid; //<- NO UUID

  ..

1.9.1命令行中的avro-工具

 ..

@org.apache.avro.specific.AvroGenerated
public class RecordWithUUID extends org.apache.avro.specific.SpecificRecordBase implements org.apache.avro.specific.SpecificRecord {
  private static final long serialVersionUID = 9147582668665082277L;
  public static final org.apache.avro.Schema SCHEMA$ = new org.apache.avro.Schema.Parser().parse("{\"type\":\"record\",\"name\":\"RecordWithUUID\",\"namespace\":\"avro\",\"fields\":[{\"name\":\"uuid\",\"type\":{\"type\":\"string\",\"logicalType\":\"uuid\"}}]}");
  public static org.apache.avro.Schema getClassSchema() { return SCHEMA$; }

  ..

   private java.lang.CharSequence uuid; //<- NO UUID
  ..

maven插件为avro1.8.2/1.9.1

  ..

@org.apache.avro.specific.AvroGenerated
public class RecordWithUUID extends org.apache.avro.specific.SpecificRecordBase implements org.apache.avro.specific.SpecificRecord {
  private static final long serialVersionUID = 9147582668665082277L;
  public static final org.apache.avro.Schema SCHEMA$ = new org.apache.avro.Schema.Parser().parse("{\"type\":\"record\",\"name\":\"RecordWithUUID\",\"namespace\":\"avro\",\"fields\":[{\"name\":\"uuid\",\"type\":{\"type\":\"string\",\"avro.java.string\":\"String\",\"logicalType\":\"uuid\"}}]}");
  public static org.apache.avro.Schema getClassSchema() { return SCHEMA$; }

  ..

   private java.lang.String uuid;//<- NO UUID
  ..

那么，是虫子还是我做错了什么？

Answer 1

试试1.10.0-SNAPSHOT，我已经在那里工作了（在其他版本中遇到与您相同的问题后）