Examples with CapabilityImpl io.fabric8.agent.resolver.CapabilityImpl used on opensource projects

Example 1 with CapabilityImpl

use of io.fabric8.agent.resolver.CapabilityImpl in project fabric8 by jboss-fuse.

the class SubsystemResolver method prepare.

public void prepare(Collection<Feature> allFeatures, Map<String, Set<String>> requirements, Map<String, Set<BundleRevision>> system) throws Exception {
    // Build subsystems on the fly
    for (Map.Entry<String, Set<String>> entry : requirements.entrySet()) {
        String[] parts = entry.getKey().split("/");
        if (root == null) {
            root = new Subsystem(parts[0]);
        } else if (!root.getName().equals(parts[0])) {
            throw new IllegalArgumentException("Can not use multiple roots: " + root.getName() + ", " + parts[0]);
        }
        Subsystem ss = root;
        for (int i = 1; i < parts.length; i++) {
            ss = getOrCreateChild(ss, parts[i]);
        }
        for (String requirement : entry.getValue()) {
            ss.require(requirement);
        }
    }
    if (root == null) {
        return;
    }
    // Pre-resolve
    root.build(allFeatures);
    // Add system resources
    BundleRevision sysBundleRev = null;
    boolean hasEeCap = false;
    for (Map.Entry<String, Set<BundleRevision>> entry : system.entrySet()) {
        Subsystem ss = null;
        String[] parts = entry.getKey().split("/");
        String path = parts[0];
        if (path.equals(root.getName())) {
            ss = root;
        }
        for (int i = 1; ss != null && i < parts.length; i++) {
            path += "/" + parts[i];
            ss = ss.getChild(path);
        }
        if (ss != null) {
            ResourceImpl dummy = new ResourceImpl("dummy", "dummy", Version.emptyVersion);
            for (BundleRevision res : entry.getValue()) {
                // We need to explicitely provide service capabilities for bundles
                // We use both actual services and services declared from the headers
                // TODO: use actual services
                Map<String, String> headers = new DictionaryAsMap<>(res.getBundle().getHeaders());
                Resource tmp = ResourceBuilder.build(res.getBundle().getLocation(), headers);
                for (Capability cap : tmp.getCapabilities(ServiceNamespace.SERVICE_NAMESPACE)) {
                    dummy.addCapability(new CapabilityImpl(dummy, cap.getNamespace(), cap.getDirectives(), cap.getAttributes()));
                }
                ss.addSystemResource(res);
                for (Capability cap : res.getCapabilities(null)) {
                    hasEeCap |= cap.getNamespace().equals(EXECUTION_ENVIRONMENT_NAMESPACE);
                }
                if (res.getBundle().getBundleId() == 0) {
                    sysBundleRev = res;
                }
            }
            ss.addSystemResource(dummy);
        }
    }
    // Under Equinox, the osgi.ee capabilities are not provided by the system bundle
    if (!hasEeCap && sysBundleRev != null) {
        String provideCaps = sysBundleRev.getBundle().getHeaders().get(PROVIDE_CAPABILITY);
        environmentResource = new ResourceImpl("environment", "karaf.environment", Version.emptyVersion);
        environmentResource.addCapabilities(ResourceBuilder.parseCapability(environmentResource, provideCaps));
        root.addSystemResource(environmentResource);
    }
}