在 OSGI 包中使用外部 java 库

Question

我想在我的 OSGI 包中使用这个 java 库 [1]enj-library，它将在 KURA eclipse 平台下执行。

我将库编译为 jar，然后在 eclipse 下创建了一个新的插件项目“来自现有 JAR 存档的插件”

然后我尝试将它添加到我的捆绑包中，但它不起作用： 1.我尝试导入捆绑包，并且在导入和导出的清单文件中验证了版本是正确的，但是我得到了这个错误：

org.osgi.framework.BundleException: The bundle "org.eclipse.kura.binding.enocean_1.0.0.201506181418 [70]" could not be resolved. Reason: Missing Constraint: Import-Package: it.polito.elite.enocean.enj.communication; version="1.0.0"
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.getResolverError(AbstractBundle.java:1332)
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.getResolutionFailureException(AbstractBundle.java:1316)
    at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:323)
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:300)
    at org.tigris.mtoolkit.iagent.internal.rpc.RemoteBundleAdminImpl.startBundle(RemoteBundleAdminImpl.java:230)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.tigris.mtoolkit.iagent.internal.pmp.InvocationThread.run(InvocationThread.java:54)
    at org.tigris.mtoolkit.iagent.internal.utils.ThreadPool$Worker.run(ThreadPool.java:179)
    at java.lang.Thread.run(Thread.java:724)

2.我将它添加为必需的捆绑包，但我得到了同样的错误：

org.osgi.framework.BundleException: The bundle "org.eclipse.kura.binding.enocean_1.0.0.201506181349 [70]" could not be resolved. Reason: Missing Constraint: Require-Bundle: EnOceanJavaLibraryplugIn; bundle-version="1.0.0"
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.getResolverError(AbstractBundle.java:1332)
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.getResolutionFailureException(AbstractBundle.java:1316)
    at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:323)
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:300)
    at org.tigris.mtoolkit.iagent.internal.rpc.RemoteBundleAdminImpl.startBundle(RemoteBundleAdminImpl.java:230)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.tigris.mtoolkit.iagent.internal.pmp.InvocationThread.run(InvocationThread.java:54)
    at org.tigris.mtoolkit.iagent.internal.utils.ThreadPool$Worker.run(ThreadPool.java:179)
    at java.lang.Thread.run(Thread.java:724)

3.我在类路径中添加并启动了我的包，但我发现类未找到异常

java.lang.ClassNotFoundException: org.eclipse.kura.binding.enocean.EnOcean
    at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:501)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:421)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:412)
    at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:340)
    at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:229)
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1212)
    at org.eclipse.equinox.internal.ds.model.ServiceComponent.createInstance(ServiceComponent.java:493)
    at org.eclipse.equinox.internal.ds.model.ServiceComponentProp.createInstance(ServiceComponentProp.java:272)
    at org.eclipse.equinox.internal.ds.model.ServiceComponentProp.build(ServiceComponentProp.java:333)
    at org.eclipse.equinox.internal.ds.InstanceProcess.buildComponent(InstanceProcess.java:620)
    at org.eclipse.equinox.internal.ds.InstanceProcess.buildComponents(InstanceProcess.java:197)
    at org.eclipse.equinox.internal.ds.Resolver.buildNewlySatisfied(Resolver.java:473)
    at org.eclipse.equinox.internal.ds.Resolver.enableComponents(Resolver.java:217)
    at org.eclipse.equinox.internal.ds.SCRManager.performWork(SCRManager.java:816)
    at org.eclipse.equinox.internal.ds.SCRManager$QueuedJob.dispatch(SCRManager.java:783)
    at org.eclipse.equinox.internal.ds.WorkThread.run(WorkThread.java:89)
    at org.eclipse.equinox.internal.util.impl.tpt.threadpool.Executor.run(Executor.java:70)

[1]https://github.com/dog-gateway/enj-library

如何在我的 OSGI 包中包含这个库？

非常感谢您的帮助！

Answer 1

enocean 库似乎是一个 OSGi 包。所以你应该将它添加到你的目标平台，并在你自己的包中使用 Import-Package 来访问你需要的包。