apache/gravitino

[Improvement] Remove warnings when compiling Gravitino

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#1,809 创建于 2024年1月31日

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good first issueimprovement

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描述

What would you like to be improved?

Warning shows up when compiling Gravitino, adding -Xlint:unchecked gives this:

> Task :common:compileJava FAILED
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/util/DTOConverters.java:82: warning: [unchecked] unchecked call to withProperties(Map<String,String>) as a member of the raw type Builder
        .withProperties(metalake.properties())
                       ^
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/util/DTOConverters.java:132: warning: [unchecked] unchecked call to withProperties(Map<String,String>) as a member of the raw type Builder
        .withProperties(catalog.properties())
                       ^
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/util/DTOConverters.java:141: warning: [unchecked] unchecked call to withProperties(Map<String,String>) as a member of the raw type Builder
        .withProperties(schema.properties())
                       ^
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/util/DTOConverters.java:167: warning: [unchecked] unchecked call to withProperties(Map<String,String>) as a member of the raw type Builder
        .withProperties(table.properties())
                       ^
  where S is a type-variable:
    S extends Builder declared in class Builder
error: warnings found and -Werror specified
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/AuditDTO.java:90: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/AuditDTO.java:101: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/AuditDTO.java:112: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/AuditDTO.java:123: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/MetalakeDTO.java:86: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/MetalakeDTO.java:97: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/MetalakeDTO.java:108: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/MetalakeDTO.java:119: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/CatalogDTO.java:112: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/CatalogDTO.java:123: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/CatalogDTO.java:134: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/CatalogDTO.java:145: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/CatalogDTO.java:156: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/CatalogDTO.java:167: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/SchemaDTO.java:86: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/SchemaDTO.java:97: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/SchemaDTO.java:108: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/SchemaDTO.java:119: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/ColumnDTO.java:141: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/ColumnDTO.java:152: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/ColumnDTO.java:163: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/ColumnDTO.java:174: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/ColumnDTO.java:185: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/ColumnDTO.java:190: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/TableDTO.java:164: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/TableDTO.java:175: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/TableDTO.java:186: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/TableDTO.java:197: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/TableDTO.java:208: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/TableDTO.java:213: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/TableDTO.java:218: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/TableDTO.java:223: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/TableDTO.java:228: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/indexes/IndexDTO.java:93: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/indexes/IndexDTO.java:98: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
/Users/justin/gravitino/common/src/main/java/com/datastrato/gravitino/dto/rel/indexes/IndexDTO.java:103: warning: [unchecked] unchecked cast
      return (S) this;
                 ^
  required: S
  found:    Builder<S>
  where S is a type-variable:
    S extends Builder declared in class Builder
1 error
40 warnings

How should we improve?

Remove the warnings. This is required by https://www.bestpractices.dev/en

贡献者指南

研究方向
在 DTOConverters.java 和 DTO 文件（AuditDTO、MetalakeDTO、CatalogDTO、SchemaDTO、ColumnDTO、TableDTO、IndexDTO）中为 Builder 类添加泛型类型参数，以消除未检查警告。确保 withProperties 方法和类型转换语句使用正确的泛型类型。
技术栈
java
领域
backend
议题类型
重构
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
1
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1 小时以内
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
活跃
清晰度议题是否清楚说明期望改动、验收标准和下一步。
清晰
前置要求
JavaGenerics
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
80