Question

我正在运行以下代码来迭代已安装的功能

IBundleGroup[] bundleGroups = Platform.getBundleGroupProviders()[0].getBundleGroups();

但是，此代码不会返回在初次运行产品后安装的功能。我没有在＆＃34;功能＆＃34;下看到这些已安装的功能。 “安装详细信息”对话框的选项卡（“帮助” - >“关于 - ＆gt;安装详细信息”），但确实可以在＆＃34;已安装软件＆＃34;标签。是否有不同的API来获取这些功能？

Answer 1

更好地使用P2 API。这是一个如何工作的例子（未经测试，但你会得到这个想法）：

Set<IInstallableUnit> findFeatures() throws ProvisionException {

    Set<IInstallableUnit> result = Sets.newHashSet();

    // 1. initialize necessary p2 services
    BundleContext ctx = FrameworkUtil.getBundle(getClass()).getBundleContext();
    ServiceReference<IProvisioningAgentProvider> ref = ctx.getServiceReference(IProvisioningAgentProvider.class);

    IProvisioningAgentProvider agentProvider = ctx.getService(ref);

    String profileId = IProfileRegistry.SELF; // the profile id for the currently running system
    URI location = null; // the location for the currently running system is null

    IProvisioningAgent provisioningAgent = agentProvider.createAgent(location);
    IProfileRegistry profileRegistry = (IProfileRegistry) provisioningAgent.getService(IProfileRegistry.SERVICE_NAME);
    IProfile p2Profile = profileRegistry.getProfile(profileId);

    // 2. create a query (check QueryUtil for options)
    IQuery<IInstallableUnit> query = QueryUtil.createIUGroupQuery();

    // 3. perform query
    IQueryResult<IInstallableUnit> queryResult = p2Profile.query(query, null);
    result = queryResult.toSet();

    return result;
}

以编程方式获取已安装的功

1 个答案: