AutoProtoSchemaBuilder不生成proto文件。

Question

按照 @Ryan Emerson 的建议更新了我的代码，但我仍然没有看到任何自动生成的 Impl 文件和 proto 文件。

@AutoProtoSchemaBuilder(
        includeClasses = { Book.class,  Author.class },
        schemaFileName = "library.proto",
        schemaFilePath = "proto/")
        interface DummyInitializer extends SerializationContextInitializer {


}

笔者班

public class Author {
    private final String name;
    private final String surname;

    @ProtoFactory
    public Author(String name, String surname) {
        this.name = (String)Objects.requireNonNull(name);
        this.surname = (String)Objects.requireNonNull(surname);
    }

    @ProtoField(
        number = 1
    )
    public String getName() {
        return this.name;
    }

    @ProtoField(
        number = 2
    )
    public String getSurname() {
        return this.surname;
    }

    public boolean equals(Object o) {
        if (this == o) {
            return true;
        } else if (o != null && this.getClass() == o.getClass()) {
            Author author = (Author)o;
            return this.name.equals(author.name) && this.surname.equals(author.surname);
        } else {
            return false;
        }
    }

    public int hashCode() {
        return Objects.hash(new Object[]{this.name, this.surname});
    }
}

书籍类

public class Book {
    private final String title;
    private final String description;
    private final int publicationYear;
    private final Set<Author> authors;

    @ProtoFactory
    public Book(String title, String description, int publicationYear, Set<Author> authors) {
        this.title = (String)Objects.requireNonNull(title);
        this.description = (String)Objects.requireNonNull(description);
        this.publicationYear = publicationYear;
        this.authors = (Set)Objects.requireNonNull(authors);
    }

    @ProtoField(
        number = 1
    )
    public String getTitle() {
        return this.title;
    }

    @ProtoField(
        number = 2
    )
    public String getDescription() {
        return this.description;
    }

    @ProtoField(
        number = 3,
        defaultValue = "-1"
    )
    public int getPublicationYear() {
        return this.publicationYear;
    }

    @ProtoField(
        number = 4
    )
    public Set<Author> getAuthors() {
        return this.authors;
    }

    public boolean equals(Object o) {
        if (this == o) {
            return true;
        } else if (o != null && this.getClass() == o.getClass()) {
            Book book = (Book)o;
            return this.publicationYear == book.publicationYear && this.title.equals(book.title) && this.description.equals(book.description) && this.authors.equals(book.authors);
        } else {
            return false;
        }
    }

    public int hashCode() {
        return Objects.hash(new Object[]{this.title, this.description, this.publicationYear, this.authors});
    }
}

带有覆盖方法的context-initialzer类。

import org.infinispan.protostream.SerializationContext;

import java.io.UncheckedIOException;

public class contextInitializer implements DummyInitializer {
    @Override
    public String getProtoFileName() {
        return null;
    }

    @Override
    public String getProtoFile() throws UncheckedIOException {
        return null;
    }

    @Override
    public void registerSchema(SerializationContext serCtx) {

    }

    @Override
    public void registerMarshallers(SerializationContext serCtx) {

    }
}

那么实例化上下文初始化器的ClassA

public class classA {


  DummyInitializer myInterface= new contextInitializer();



    //Create a new cache instance


    public void startCache() {
        {

          try {
            manager = new DefaultCacheManager("src/main/resources/infinispan.xml");
            GlobalConfigurationBuilder builder= new GlobalConfigurationBuilder();
            builder.serialization().addContextInitializers(myInterface);
            System.out.println("------------------>"+ builder.serialization().addContextInitializers(myInterface));
            cache = manager.getCache();
            System.out.println(cache.getName()+" is initialized ");
          } catch (IOException e) {
            throw new IllegalArgumentException("Failed to initialize cache due to IO error",e);
          }
        }

        }

Maven

                <dependency>
                <groupId>org.infinispan</groupId>
                <artifactId>infinispan-bom</artifactId>
                <version>${infinispan.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <dependency>
                <groupId>org.infinispan.protostream</groupId>
                <artifactId>protostream-processor</artifactId>
                <scope>provided</scope>
            </dependency>

我仍然没有看到任何自动生成的proto文件。谁能告诉我，我到底做错了什么？

Answer 1

你还需要添加 org.infinispan.protostream:protostream-processor artifact作为依赖，以便生成代码。

<dependency>
    <groupId>org.infinispan.protostream</groupId>
    <artifactId>protostream-processor</artifactId>
    <version>4.3.2.Final</version>
</dependency>

一旦有了这个依赖，一个DummyInitializerImpl.java类就会被生成，它将自动注册proto文件和marshallers的 Book 和 Author 类。请记住，这些类也必须有原流注解，以便生成模式和marshallers。请看 文件 的代码示例。

你目前的代码有两个问题。

1. 你提供了一个 DummyInitializerImpl 类，但那是应该由 @AutoProtoSchemaBuilder.
2. 在你的 DummyInitializerImpl 您正在尝试注册Infinispan的。UUIDMarshaller 对于 Book 和 Author 类型。这样做是行不通的，因为那个marshaller是为java的 UUID 类。

我怀疑这两个问题是由于对代码生成工作原理的误解。如果你只是要求一个 SerializationContextInitializer 对于 Author 和 Book 类，它不需要创建 DummyInitializerImpl 你绝对不需要使用UUIDMarshaller。

Answer 2

你没有说使用的是哪个构建系统，也许是maven？你是否添加了protostream注释处理器作为依赖？对这些问题有一个明确的答案将有助于解决代码生成的问题。而在这之后，我们仍然需要找出谁应该初始化那个dummyInitializer字段。