Examples of org.osgi.service.obr.RepositoryAdmin

org.osgi.service.obr.RepositoryAdmin
Provides centralized access to the distributed repository. A repository contains a set of resources. A resource contains a number of fixed attributes (name, version, etc) and sets of:
1. Capabilities - Capabilities provide a named aspect: a bundle, a display, memory, etc.
2. Requirements - A named filter expression. The filter must be satisfied by one or more Capabilities with the given name. These capabilities can come from other resources or from the platform. If multiple resources provide the requested capability, one is selected. (### what algorithm? ###)
3. Requests - Requests are like requirements, except that a request can be fulfilled by 0..n resources. This feature can be used to link to resources that are compatible with the given resource and provide extra functionality. For example, a bundle could request all its known fragments. The UI associated with the repository could list these as optional downloads.

        if (ref == null) {
            io.out.println("RepositoryAdmin service is unavailable.");
            return null;
        }
        try {
            RepositoryAdmin admin = (RepositoryAdmin) getBundleContext().getService(ref);
            if (admin == null) {
                io.out.println("RepositoryAdmin service is unavailable.");
                return null;
            }

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        if (ref == null) {
            io.out.println("RepositoryAdmin service is unavailable.");
            return null;
        }
        try {
            RepositoryAdmin admin = (RepositoryAdmin) getBundleContext().getService(ref);
            if (admin == null) {
                io.out.println("RepositoryAdmin service is unavailable.");
                return null;
            }

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        return list;
    }


    public void getList() {
        ServiceReference sr = ctx.getServiceReference(RepositoryAdmin.class.getName());
        RepositoryAdmin adm = (RepositoryAdmin) ctx.getService(sr);


        // add repos from configuration
        for (String uri : getRepoUris()) {
            try {
                adm.addRepository(new URL(uri));
            } catch (Exception e) {
                logger.warn("Couldn't add repository", e);
            }
        }


        Repository[] repos = adm.listRepositories();
        StringBuilder sb = new StringBuilder();
        for (Repository repo : repos) {
            sb.append('\n').append(repo.getName()).append(' ').append(repo.getURL().toString());
        }
        logger.info(I18N.translate("info.loading_plugin_list"), sb.toString());
        String filter = "(symbolicname=*)"; // get all bundles
        logger.info("Resolving {}", filter);
        Resource[] res = adm.discoverResources(filter);
        Collection<Resource> resources = filterByVersion(res);
        for (Iterator<Resource> iterator = resources.iterator(); iterator.hasNext();) {
            Resource resource = iterator.next();
            Capability[] caps = resource.getCapabilities();
            Capability capability = getCapability(caps, "jmp3renamer");

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            if (bundles.length == 0) {
                return;
            }


            ServiceReference sr = ctx.getServiceReference(RepositoryAdmin.class.getName());
            RepositoryAdmin adm = (RepositoryAdmin) ctx.getService(sr);
            Resolver resolver = adm.resolver();


            for (Object object : bundles) {
                Bundle bundle = (Bundle) object;
                String symbolicName = bundle.getSymbolicName();
                // String version = (String) bundle.getHeaders().get(Constants.BUNDLE_VERSION);
                String filter = "(symbolicname=" + symbolicName + ")";
                logger.info("Resolving " + filter);
                Collection<Resource> resources = filterByVersion(adm.discoverResources(filter));
                logger.info("Found {} resources", resources.size());
                if (resources.size() > 0) {
                    try {
                        bundle.uninstall();
                        for (Resource resource : resources) {
                            logger.info("Adding {} to update list", resource.getSymbolicName());
                            resolver.add(resource);
                        }
                    } catch (BundleException e1) {
                        logger.error("error.uninstall_plugins");
                    }
                }
            }


            if (resolver.resolve()) {
                resolver.deploy(true); // deploy and start (true means "start")
            } else {
                logger.error(I18N.translate("error.load_list"));
            }
            updateInstalledList();
            updateAvailableList();
            updateInstalledDetails();
            JOptionPane.showMessageDialog(Main.getGUI(), I18N.translate("plugins_updated"), "PluginManager",
                    JOptionPane.INFORMATION_MESSAGE);
        } else if (e.getSource() == bInstall) {
            Object[] resources = availableList.getSelectedValues();
            if (resources.length == 0) {
                return;
            }


            ServiceReference sr = ctx.getServiceReference(RepositoryAdmin.class.getName());
            if (sr == null) {
                logger.error("OBR service not available");
                return;
            }


            RepositoryAdmin adm = (RepositoryAdmin) ctx.getService(sr);
            if (adm == null) {
                logger.error("OBR service not available");
                return;
            }


            // add resources to the resolver
            Resolver resolver = adm.resolver();
            for (Object object : resources) {
                Resource res = (Resource) object;
                resolver.add(res);
            }

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