[英]How to create Restful service and deploy it OSGi container?
My goal is to create a Restful service Maven project with Eclipse.我的目标是使用 Eclipse 创建一个 Restful 服务 Maven 项目。 Then package it as a bundle and deploy it to Fuse ESB karaf OSGi container.然后将其打包为一个包并将其部署到 Fuse ESB karaf OSGi 容器中。 So far what I know is how to use the JAX-RS API annotations, @Path @GET:到目前为止,我所知道的是如何使用 JAX-RS API 注释,@Path @GET:
package com.restfultest;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
@Path("/example")
public class ExampleService {
@GET
public String sayHello() {
return "Hello Restful service";
}
}
My question is that: 1. what maven archetype should I use?我的问题是: 1. 我应该使用什么 Maven 原型? maven-archetype-webapp or quickstart? maven-archetype-webapp 还是快速入门?
2.How to implement Activator? 2.如何实现Activator? Like this?像这样?
public class Activator implements BundleActivator {
private ServiceRegistration<?> registration;
public void start(BundleContext context) throws Exception {
// TODO Auto-generated method stub
ExampleService exampleService = new ExampleService();
registration = context.registerService( ExampleService.class.getName(), exampleService, null );
}
public void stop(BundleContext context) throws Exception {
// TODO Auto-generated method stub
registration.unregister();
}
}
3. How to register and publish the service (like how to configure the Endpoint address and port)? 3.如何注册和发布服务(比如如何配置Endpoint地址和端口)?
I am new to osgi.我是 osgi 的新手。 Does anyone can provide me some resources or a detailed tutorial?有没有人可以给我一些资源或详细的教程?
Here is my 5 cent:这是我的 5 美分:
And then, in my particular case, I used the Maven Bundle Plugin to handle the imports on Runtime and packing, so, my pom.xml looks something like this (Please notice the dependencies):然后,在我的特定情况下,我使用Maven Bundle Plugin来处理运行时和打包的导入,因此,我的 pom.xml 看起来像这样(请注意依赖项):
... <packaging>bundle</packaging> <build> <plugins> <!--+ + OSGi Bundle-Manifiest Generator. + --> <plugin> <groupId>org.apache.felix</groupId> <artifactId>maven-bundle-plugin</artifactId> <version>2.3.7</version> <extensions>true</extensions> <configuration> <instructions> <Import-Package>javax.servlet.*;version="[2.4,4.0)",*</Import-Package> <Bundle-Activator>com.sample.api.Activator</Bundle-Activator> <Implementation-Title>jersey-osgi-http-service-bundle</Implementation-Title> <Implementation-Version>${project.version}</Implementation-Version> </instructions> <unpackBundle>true</unpackBundle> </configuration> </plugin> </plugins> </build> <dependencies> <!--+======================+--> <!--+ REST Dependencies +--> <!--+======================+--> <dependency> <groupId>org.glassfish.jersey.containers</groupId> <artifactId>jersey-container-servlet-core</artifactId> <version>2.22.1</version> </dependency> <dependency> <groupId>org.apache.felix</groupId> <artifactId>org.apache.felix.http.bundle</artifactId> <version>2.2.0</version> </dependency> <!--+=========================================+--> <!--+ Apache Felix Framework (OSGi framework) +--> <!--+=========================================+--> <dependency> <groupId>org.apache.felix</groupId> <artifactId>org.apache.felix.framework</artifactId> <version>4.6.0</version> </dependency> </dependencies>
In my specific case I have also the WebConsole installed , then my bundles look like this:在我的特定情况下,我还安装了WebConsole ,然后我的包看起来像这样:
0|Active | 0|System Bundle (4.6.0) 1|Active | 1|Apache Felix Bundle Repository (2.0.2) 2|Active | 1|Apache Felix Gogo Command (0.14.0) 3|Active | 1|Apache Felix Gogo Runtime (0.12.1) 4|Active | 1|Apache Felix Gogo Shell (0.10.0) 5|Active | 1|com.sample-api (1.3.0.SNAPSHOT) 6|Active | 1|jersey-all (2.22.1) 7|Active | 1|Apache Felix Log Service (1.0.0) 8|Active | 1|Apache Felix Configuration Admin Service (1.2.4) 9|Active | 1|Apache Felix Shell Service (1.4.2) 10|Active | 1|Apache Felix Http Bundle (2.0.4) 11|Active | 1|HTTP Service (1.0.0) 12|Active | 1|Apache Felix Web Management Console (3.1.2)
For Rest it's important to have the bundles 6, 10 and 11.对于 Rest,拥有 6、10 和 11 包很重要。
And the port is configurable in the "config.properties" of the OSGI (I used Felix) just by doing this:只需执行以下操作,即可在 OSGI(我使用 Felix)的“config.properties”中配置端口:
org.osgi.service.http.port=28370
Then, to reach the service just use the following path:然后,要访问该服务,只需使用以下路径:
http://localhost:28370/jersey-http-service/status
You'll need to create an OSGI bundle.您需要创建一个 OSGI 包。 There are a few archetypes that create maven projects:有一些原型可以创建 maven 项目:
Your activator looks correct.您的激活器看起来正确。
This question I cannot answer, but it looks like this project does what you need: https://github.com/hstaudacher/osgi-jax-rs-connector这个问题我无法回答,但看起来这个项目可以满足您的需求: https : //github.com/hstaudacher/osgi-jax-rs-connector
In general I recommend you get yourself the OSGI specification , it's a good read and explains a lot of things.一般来说,我建议您自己阅读OSGI 规范,这是一本很好的读物并解释了很多事情。
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