CODEWITHSUNDEEP
javaavroavro-tools
xrabbit
xrabbit

Reputation: 735

Apache Avro is not generating UUID

Avro is not generating UUID class in code for fields no mater what I tried.

Versions: 1.8.2 & 1.9.1

I tried to generate UUID with such schema: 

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

This is the class from Avro project test class TestReflectLogicalTypes::RecordWithUUID So, in short this is example of schema that Avro uses to test their code functionality and I expected that it should work.

I run like this to get java code from my scheme:

java -jar avro-tools-1.8.2.jar compile schema my_scheme.avsc .

java -jar avro-tools-1.9.1.jar compile schema my_scheme.avsc .

The initial class code from Avro is like this:

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);
  }
}

Here is code that I got after generating:

1.8.2 avro-tools from command line

  ..

@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 avro-tools from command line

 ..

@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 plugin for avro 1.8.2/1.9.1

  ..

@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
  ..

So, is it a bug or I'm doing something wrong ?

Upvotes: 2

Views: 1601

Answers (1)

M21B8
M21B8

Reputation: 1887

Try 1.10.0-SNAPSHOT, I have it working there (after experiencing the same issues as you with the other versions)

Upvotes: 1

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