Question

我有一个Avro模式，其中某些字段定义为十进制逻辑类型。从该架构中，我使用avro-maven-plugin（使用版本1.9.0）生成类。我想避免生成ByteBuffer类型，而改用BigDecimal。

我在较旧的问题（例如here）中发现要使用1.8.2版。我尝试过，然后升级到1.9.0，仍然无法获得正确的数据类型。

模式：

{
            "name": "TUR_ID",
            "type": [
              "null",
              "bytes"
            ],
            "default": null,
            "logicalType": "decimal",
            "precision": 16,
            "scale": 0
}

pom.xml中的插件配置：

            <plugin>
                <groupId>org.apache.avro</groupId>
                <artifactId>avro-maven-plugin</artifactId>
                <version>${avro.version}</version>
                <executions>
                    <execution>
                        <id>schemas</id>
                        <phase>generate-sources</phase>
                        <goals>
                            <goal>schema</goal>
                            <goal>protocol</goal>
                            <goal>idl-protocol</goal>
                        </goals>
                        <configuration>
                            <stringType>String</stringType>
                            <enableDecimalLogicalType>true</enableDecimalLogicalType>
                            <sourceDirectory>${project.basedir}/src/main/resources/</sourceDirectory>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

实际输出为@Deprecated public java.nio.ByteBuffer TUR_ID;，我想得到@Deprecated public java.math.BigDecimal TUR_ID;。

Answer 1

<plugin>
<groupId>org.apache.avro</groupId>
<artifactId>avro-maven-plugin</artifactId>
<version>1.9.1</version>
<executions>
    <execution>
        <phase>generate-sources</phase>
        <goals>
            <goal>schema</goal>
            <goal>idl-protocol</goal>
        </goals>
        <configuration>
         <enableDecimalLogicalType>true</enableDecimalLogicalType>
        </configuration>
    </execution>
</executions>

Answer 2

尝试将架构更改为：

    {
        "name": "TUR_ID",
        "default": null,
        "type": ["null", {
          "type": "bytes",
          "logicalType": "decimal",
          "precision": 16,
          "scale": 0
        }]
    }

使用avro-maven-plugin 1.9.0

2 个答案: