检查文件是否为OSGi捆绑软件(并找到捆绑软件名称)，而不将其安装在OSGi框架中 [英] Check whether a file is an OSGi bundle (and find the bundle name) without installing it in the OSGi framework

问题描述

有可能吗?还是我必须尝试安装它?

Is it possible? Or do I have to try to install it?

推荐答案

我假设您正在谈论OSGi版本4，因为在OSGi版本3和更早版本的任何中，有效的JAR文件也是有效的OSGi捆绑包.

I'll assume you're talking about OSGi Release 4, since in OSGi Release 3 and earlier any valid JAR file was also a valid OSGi bundle.

使用java.util.jar包中的标准Java API只需读取JAR的清单.要成为有效的R4捆绑包，所需的最小标头为:

Simply read the JAR's manifest using the standard Java APIs in the java.util.jar package. The minimum headers required to be a valid R4 bundle are:

• Bundle-ManifestVersion: 2
• Bundle-SymbolicName: ...

• Bundle-ManifestVersion: 2
• Bundle-SymbolicName: ...

正如BJ指出的那样，捆绑软件的"id"是在安装时分配的，但实际上很多人都将其作为捆绑软件的符号名称.

As BJ points out, the "id" of the bundle is assigned when it is installed, but what many people take to be the "id" is actually the Bundle Symbolic Name.

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