如何在Tapestry中使用OSGi服务

2018-06-26 17:14:48

我有我的Tapestry Web应用程序，可为某些数据集提供完整的CRUD功能。到目前为止，我一直在使用mock来开发和测试它。

但是，我现在需要通过OSGi服务（与Felix一起运行）替换该模拟。

我的主要问题是：

我是否需要将OSGi服务注入到我的tapestry应用程序中？如果是这样，请问该如何操作？

假设它被注入，有没有关于如何使用它的做法？任何特殊的方式，我应该称之为方法或类似的东西？

在我调用了我需要的方法后，是否需要对它做些什么？或者是自动完成的？

我需要担心HttpService吗（我瞥了一些关于它的投诉，但并不完全理解它）

为了给你提供一些背景，这就是我现在正在做的事情

public class MyPage {
    ...
    @Inject
    private MyDao dao;
    ...
    @Property
    private List<Entry> entries;
    ...
    void onPrepareForRender() {
        ...
        this.entries = this.dao.getAll()
        ...
    }
    ...
}

例如，我想将MyDao dao替换为提供相同功能的OSGi服务，以便我可以在onPrepareForRender方法中使用它。

我可以放心地认为与该服务关联的OSGi包已经在运行。

其余的应用程序是作为一个OSGi应用程序。我在我的pom.xml中添加/更改了一些东西（maven-bundle-plugin，添加了一些清单条目，如http://www.javabeat.net/2011/11/writing-an-osgi-web-application/ ）。

但是，它仍然不起作用。

我试图将我的WAR转换为WAB，顺便说一句。

先谢谢你：）

编辑：转换和从WAR部署到WAB时出现问题

当我打包我的网络应用程序时， war东西工作正常。但是，当我将它打包为bundle并尝试在GlassFish中进行部署时，出现以下错误消息：

部署期间发生错误：没有安装的容器能够处理此应用程序admin-war。有关更多详细信息，请参阅server.log。

当我去server.log时，它的内容如下：

[#|2013-08-27T17:11:57.600+0200|INFO|glassfish3.1.2|org.glassfish.admingui|_ThreadID=28;_ThreadName=Thread-2;|uploadFileName=admin-war-2.01-SNAPSHOT.jar|#]

[#|2013-08-27T17:11:57.920+0200|WARNING|glassfish3.1.2|javax.enterprise.system.tools.deployment.com.sun.enterprise.deploy.shared|_ThreadID=29;_ThreadName=Thread-2;|DPL8031: Ignoring WEB-INF/ because the containing archive C:glassfish3glassfishdomainsdomain1applicationsadmin-war recorded it as a pre-existing stale file|#]

[#|2013-08-27T17:11:57.939+0200|WARNING|glassfish3.1.2|javax.enterprise.system.tools.deployment.com.sun.enterprise.deploy.shared|_ThreadID=33;_ThreadName=Thread-2;|DPL8031: Ignoring WEB-INF/ because the containing archive C:glassfish3glassfishdomainsdomain1applicationsadmin-war recorded it as a pre-existing stale file|#]

[#|2013-08-27T17:11:57.972+0200|WARNING|glassfish3.1.2|javax.enterprise.system.tools.deployment.com.sun.enterprise.deploy.shared|_ThreadID=29;_ThreadName=Thread-2;|DPL8031: Ignoring WEB-INF/ because the containing archive C:glassfish3glassfishdomainsdomain1applicationsadmin-war recorded it as a pre-existing stale file|#]

[#|2013-08-27T17:11:57.973+0200|WARNING|glassfish3.1.2|javax.enterprise.system.tools.deployment.com.sun.enterprise.deploy.shared|_ThreadID=29;_ThreadName=Thread-2;|DPL8031: Ignoring WEB-INF/ because the containing archive C:glassfish3glassfishdomainsdomain1applicationsadmin-war recorded it as a pre-existing stale file|#]

[#|2013-08-27T17:11:57.974+0200|WARNING|glassfish3.1.2|javax.enterprise.system.tools.deployment.com.sun.enterprise.deploy.shared|_ThreadID=29;_ThreadName=Thread-2;|DPL8031: Ignoring WEB-INF/ because the containing archive C:glassfish3glassfishdomainsdomain1applicationsadmin-war recorded it as a pre-existing stale file|#]

[#|2013-08-27T17:11:57.990+0200|WARNING|glassfish3.1.2|javax.enterprise.system.tools.deployment.com.sun.enterprise.deploy.shared|_ThreadID=29;_ThreadName=Thread-2;|DPL8031: Ignoring WEB-INF/ because the containing archive C:glassfish3glassfishdomainsdomain1applicationsadmin-war recorded it as a pre-existing stale file|#]

[#|2013-08-27T17:11:57.991+0200|WARNING|glassfish3.1.2|javax.enterprise.system.tools.deployment.com.sun.enterprise.deploy.shared|_ThreadID=29;_ThreadName=Thread-2;|DPL8031: Ignoring WEB-INF/ because the containing archive C:glassfish3glassfishdomainsdomain1applicationsadmin-war recorded it as a pre-existing stale file|#]

[#|2013-08-27T17:11:58.006+0200|WARNING|glassfish3.1.2|javax.enterprise.system.tools.deployment.com.sun.enterprise.deploy.shared|_ThreadID=29;_ThreadName=Thread-2;|DPL8031: Ignoring WEB-INF/ because the containing archive C:glassfish3glassfishdomainsdomain1applicationsadmin-war recorded it as a pre-existing stale file|#]

[#|2013-08-27T17:11:58.008+0200|WARNING|glassfish3.1.2|javax.enterprise.system.tools.deployment.com.sun.enterprise.deploy.shared|_ThreadID=29;_ThreadName=Thread-2;|DPL8031: Ignoring WEB-INF/ because the containing archive C:glassfish3glassfishdomainsdomain1applicationsadmin-war recorded it as a pre-existing stale file|#]

[#|2013-08-27T17:11:58.008+0200|WARNING|glassfish3.1.2|javax.enterprise.system.tools.deployment.com.sun.enterprise.deploy.shared|_ThreadID=29;_ThreadName=Thread-2;|DPL8031: Ignoring WEB-INF/ because the containing archive C:glassfish3glassfishdomainsdomain1applicationsadmin-war recorded it as a pre-existing stale file|#]

[#|2013-08-27T17:11:58.024+0200|WARNING|glassfish3.1.2|javax.enterprise.system.tools.deployment.com.sun.enterprise.deploy.shared|_ThreadID=29;_ThreadName=Thread-2;|DPL8031: Ignoring WEB-INF/ because the containing archive C:glassfish3glassfishdomainsdomain1applicationsadmin-war recorded it as a pre-existing stale file|#]

[#|2013-08-27T17:11:58.025+0200|WARNING|glassfish3.1.2|javax.enterprise.system.tools.deployment.com.sun.enterprise.deploy.shared|_ThreadID=29;_ThreadName=Thread-2;|DPL8031: Ignoring WEB-INF/ because the containing archive C:glassfish3glassfishdomainsdomain1applicationsadmin-war recorded it as a pre-existing stale file|#]

[#|2013-08-27T17:11:58.026+0200|SEVERE|glassfish3.1.2|javax.enterprise.system.core.com.sun.enterprise.v3.server|_ThreadID=29;_ThreadName=Thread-2;|Module type not recognized for module C:glassfish3glassfishdomainsdomain1applicationsadmin-war|#]

[#|2013-08-27T17:11:58.026+0200|SEVERE|glassfish3.1.2|javax.enterprise.system.core.com.sun.enterprise.v3.server|_ThreadID=29;_ThreadName=Thread-2;|There is no installed container capable of handling this application admin-war|#]

[#|2013-08-27T17:11:58.087+0200|INFO|glassfish3.1.2|org.glassfish.admingui|_ThreadID=28;_ThreadName=Thread-2;|Exception Occurred :Error occurred during deployment: There is no installed container capable of handling this application admin-war. Please see server.log for more details.|#]

我并不熟悉OSGI，但是您需要在AppModule中使用build *方法来提供DAO。在我下面的例子中，我假定OsgiBundle是一种访问OSGI服务的方式，我不知道实际的OSGI类是什么。

例如：

public class MyAppModule {
    public void contributeApplicationDefaults(MappedConfiguration<String, String> config) {
        config.add("osgi.path", "path/to/osgi.xml");
    }

    public OsgiBundle buildOsgiBundle(@Symbol("osgi.path") String osgiPath) {
        // lookup the OSGI bundle somehow
    }

    public MyDao buildMyDao(OsgiBundle osgiBundle) {
        return osgiBundle.getService(MyDao.class);
    }   

    public SomeOtherDao buildSomeOtherDao(OsgiBundle osgiBundle) {
        return osgiBundle.getService(SomeOtherDao.class);
    }   
}

如果你想要更深层次的整合（例如自动发布所有OSGI服务作为Tapestry IOC服务），那么看一下TapestrySpringFilter，它将所有Spring bean发布为Tapestry IOC服务。

链接地址: http://www.djcxy.com/p/74725.html

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