NiFi自定义处理器引入了标准工件的副本

Question

在1.12中引入之前，我已经编写了一个自定义处理器来处理多部分帖子。我拥有的处理器和nar可以正常工作，但是nar包引入了许多标准处理器的副本，其版本号与我的自定义处理器的版本号相匹配。

这是在我引入SSLContextService控制器之后开始发生的。添加控制器服务需要添加

<dependency>
            <groupId>org.apache.nifi</groupId>
            <artifactId>nifi-standard-services-api-nar</artifactId>
            <version>1.11.4</version>
            <type>nar</type>
</dependency>

根据apache nifi wiki上的指南，但是完整的nar似乎包含了标准nifi处理器的“2.1.1-Snapshot”版本，如AttributesToJson或PutRecord和其他几十个处理器。

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>com.jontia</groupId>
        <artifactId>PostMultipartFormData</artifactId>
        <version>2.1.1-SNAPSHOT</version>
    </parent>

    <artifactId>nifi-multipart-nar</artifactId>
    <version>2.1.1-SNAPSHOT</version>
    <packaging>nar</packaging>
    <properties>
        <maven.javadoc.skip>true</maven.javadoc.skip>
        <source.skip>true</source.skip>
    </properties>

    <dependencies>
        <dependency>
            <groupId>com.jontia</groupId>
            <artifactId>nifi-multipart-processors</artifactId>
            <version>2.1.1-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>org.apache.nifi</groupId>
            <artifactId>nifi-standard-services-api-nar</artifactId>
            <version>1.11.4</version>
            <type>nar</type>
        </dependency>
    </dependencies>

</project>

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>com.jontia</groupId>
        <artifactId>PostMultipartFormData</artifactId>
        <version>2.1.1-SNAPSHOT</version>
    </parent>

    <artifactId>nifi-multipart-processors</artifactId>
    <packaging>jar</packaging>

    <dependencies>
        <dependency>
            <groupId>org.apache.nifi</groupId>
            <artifactId>nifi-api</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.nifi</groupId>
            <artifactId>nifi-utils</artifactId>
            <version>1.11.4</version>
        </dependency>
        <dependency>
            <groupId>org.apache.nifi</groupId>
            <artifactId>nifi-ssl-context-service-api</artifactId>
            <version>1.11.4</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.nifi</groupId>
            <artifactId>nifi-proxy-configuration-api</artifactId>
            <version>1.11.4</version>
            <scope>provided</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.nifi/nifi-processor-utils -->
        <dependency>
            <groupId>org.apache.nifi</groupId>
            <artifactId>nifi-processor-utils</artifactId>
            <version>1.11.4</version>
        </dependency>
        <dependency>
            <groupId>org.apache.nifi</groupId>
            <artifactId>nifi-standard-processors</artifactId>
            <version>1.11.4</version>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.9</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpcore</artifactId>
            <version>4.4.11</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpmime</artifactId>
            <version>4.5.12</version>
        </dependency>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>2.13.3</version>
        </dependency>
        <dependency>
            <groupId>org.apache.nifi</groupId>
            <artifactId>nifi-mock</artifactId>
            <version>1.11.4</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.12</version>
        </dependency>
    </dependencies>
</project>

Answer 1

pom.xml处理器依赖于nifi-standard-processors：

<dependency>
    <groupId>org.apache.nifi</groupId>
    <artifactId>nifi-standard-processors</artifactId>
    <version>1.11.4</version>
</dependency>

因此，当构建NAR时，它会拉入标准处理器的罐子，所以现在它们都再次绑定在NAR和标准NAR中。

您不应该依赖标准处理器。如果其中有一些您需要的代码，那么应该将其重构为某种类型的可重用公共模块，或者如果您试图扩展处理器，您应该将其复制到您的NAR中，并进行所需的任何修改。