如何使用SpringBootJava配置编写定制的ApacheCamel组件/端点

我正在寻找一个示例/文档，介绍如何使用Java配置中的Spring Boot实现定制的Apache Camel

组件

和

端点

。我不知道如何注释这些类，你能举个例子吗。 如果不使用Spring，我的（工作）代码如下所示：

public class MyCustomComponent extends DefaultComponent {
    @Override
    protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) throws Exception {
        Endpoint endpoint = new MyCustomEndpoint(uri, this);
        setProperties(endpoint, parameters);
        return endpoint;
    }
}

---

经过大量搜索，我在Spring的

BeanFactory

的基础上找到了一个解决方案。主要障碍是循环依赖关系（组件->端点->组件|端点->生产者->端点）。首先，我介绍了一个Spring

配置

类：

@Configuration
public class ComponentConfiguration {

    @Bean("myCustomEndpoint")
    @Scope("prototype")
    public MyCustomEndpoint myCustomEndpoint(String uri, MyCustomComponent component) {
        MyCustomEndpoint endpoint = new MyCustomEndpoint(uri, component);
        return endpoint;
    }

    @Bean("myCustomProducer")
    @Scope("prototype")
    public MyCustomProducer myCustomProducer(MyCustomEndpoint endpoint) {
        return new MyCustomProducer(endpoint);
    }
}

使定制的Camel组件成为带有

@component

注释的Spring组件，这样我就能够注入

BeanFactory

来根据需要创建

MyCustomEndpoint

类的实例（

prototype

scope）

请注意，Camel组件已在

resources/META-INF/services/org/apache/Camel/component/myscheme

中注册：

class=<fqn-of-MyCustomComponent>

类=

只需查看现有的Camel组件即可获得一个示例，而且isSingleton应该返回true。@克劳斯·易卜生感谢您的回答。如何将Springbean注入

MyCustomProducer

@Configuration
public class ComponentConfiguration {

    @Bean("myCustomEndpoint")
    @Scope("prototype")
    public MyCustomEndpoint myCustomEndpoint(String uri, MyCustomComponent component) {
        MyCustomEndpoint endpoint = new MyCustomEndpoint(uri, component);
        return endpoint;
    }

    @Bean("myCustomProducer")
    @Scope("prototype")
    public MyCustomProducer myCustomProducer(MyCustomEndpoint endpoint) {
        return new MyCustomProducer(endpoint);
    }
}

@org.springframework.stereotype.Component
public class MyCustomComponent extends DefaultComponent {

    @Autowired
    private BeanFactory beanFactory;

    @Override
    protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) throws Exception {
        MyCustomEndpoint endpoint = (MyCustomEndpoint) beanFactory.getBean("myCustomEndpoint", uri, this);
        setProperties(endpoint, parameters);
        return endpoint;
    }
}

public class MyCustomEndpoint extends DefaultEndpoint {

    @Autowired
    private BeanFactory beanFactory;

    public MyCustomEndpoint(String uri, MyCustomComponent component) {
        super(uri, component);
    }

    @Override
    public Producer createProducer() throws Exception {
        MyCustomProducer producer = (MyCustomProducer) beanFactory.getBean("myCustomProducer",  this);
        return producer;
    }

    @Override
    public Consumer createConsumer(Processor processor) throws Exception {
        throw new UnsupportedOperationException("Not implemented yet: MyCustomEndpoint#createConsumer");
    }

    @Override
    public boolean isSingleton() {
        return true;
    }
}

public class MyCustomProducer extends DefaultProducer {

    // Now, I am able to inject some other Spring beans
    @Autowired
    private AnotherSpringBean bean;

    public MyCustomProducer(Endpoint endpoint) {
        super(endpoint);
    }

    @Override
    public void process(Exchange exchange) throws Exception {
    }
}

class=<fqn-of-MyCustomComponent>