Examples with Resource io.fabric8.support.api.Resource used on opensource projects

Example 26 with Resource

use of io.fabric8.support.api.Resource in project fabric8 by jboss-fuse.

the class SubsystemResolveContext method findProviders.

@Override
public List<Capability> findProviders(Requirement requirement) {
    List<Capability> caps = new ArrayList<Capability>();
    Region requirerRegion = getRegion(requirement.getResource());
    if (requirerRegion != null) {
        Map<Requirement, Collection<Capability>> resMap = repository.findProviders(Collections.singleton(requirement));
        Collection<Capability> res = resMap != null ? resMap.get(requirement) : null;
        if (res != null && !res.isEmpty()) {
            caps.addAll(res);
        } else if (globalRepository != null) {
            // Only bring in external resources for non optional requirements
            if (!RESOLUTION_OPTIONAL.equals(requirement.getDirectives().get(RESOLUTION_DIRECTIVE))) {
                resMap = globalRepository.findProviders(Collections.singleton(requirement));
                res = resMap != null ? resMap.get(requirement) : null;
                if (res != null && !res.isEmpty()) {
                    caps.addAll(res);
                }
            }
        }
        // Use the digraph to prune non visible capabilities
        Visitor visitor = new Visitor(caps);
        requirerRegion.visitSubgraph(visitor);
        Collection<Capability> allowed = visitor.getAllowed();
        caps.retainAll(allowed);
        // the parent one
        if (caps.size() > 1) {
            Map<String, Resource> providers = new HashMap<String, Resource>();
            for (Capability cap : caps) {
                Resource resource = cap.getResource();
                String id = getSymbolicName(resource) + "|" + getVersion(resource);
                Resource prev = providers.get(id);
                if (prev != null && prev != resource) {
                    Region r1 = getRegion(prev);
                    Region r2 = getRegion(resource);
                    boolean r2canSeeR1 = isResourceVisibleFromRegion(prev, r2);
                    boolean r1canSeeR2 = isResourceVisibleFromRegion(resource, r1);
                    if (r1canSeeR2 && r2canSeeR1) {
                        // r1 and r2 can see each other
                        int reqDiff = prev.getRequirements(null).size() - resource.getRequirements(null).size();
                        if (reqDiff == 0) {
                            String r1Name = getRegion(prev).getName();
                            String r2Name = getRegion(resource).getName();
                            int c = r1Name.compareTo(r2Name);
                            if (c == 0) {
                                // One of the resource has to be a bundle, use that one
                                c = (prev instanceof BundleRevision) ? -1 : +1;
                            }
                            resource = c < 0 ? prev : resource;
                        } else {
                            // one of the resource has less requirements, so use this one
                            // This can be the case when one resource has conditionals, which adds further
                            // requirements to the condition feature.
                            resource = reqDiff < 0 ? prev : resource;
                        }
                    } else {
                        // only one region can see the other, grab the correct
                        resource = r1canSeeR2 ? prev : resource;
                    }
                }
                providers.put(id, resource);
            }
            for (Iterator<Capability> it = caps.iterator(); it.hasNext(); ) {
                Capability cap = it.next();
                if (!providers.values().contains(cap.getResource())) {
                    it.remove();
                }
            }
        }
        // Sort caps
        Collections.sort(caps, candidateComparator);
    }
    return caps;
}

Example 27 with Resource

use of io.fabric8.support.api.Resource in project fabric8 by jboss-fuse.

the class SubsystemResolver method associateFragments.

private void associateFragments() {
    SimpleFilter sf = createFilter(IDENTITY_NAMESPACE, "*", CAPABILITY_TYPE_ATTRIBUTE, TYPE_SUBSYSTEM);
    for (Map.Entry<Resource, List<Wire>> entry : wiring.entrySet()) {
        final Resource resource = entry.getKey();
        final Requirement requirement = getSubsystemRequirement(resource);
        if (isFragment(resource)) {
            List<Wire> wires = entry.getValue();
            final Resource host = wires.get(0).getProvider();
            final Wire wire = findMatchingWire(sf, wiring.get(host));
            if (wire != null) {
                wires.add(new Wire() {

                    @Override
                    public Capability getCapability() {
                        return wire.getCapability();
                    }

                    @Override
                    public Requirement getRequirement() {
                        return requirement;
                    }

                    @Override
                    public Resource getProvider() {
                        return wire.getProvider();
                    }

                    @Override
                    public Resource getRequirer() {
                        return resource;
                    }
                });
            }
        }
    }
}

Example 28 with Resource

use of io.fabric8.support.api.Resource in project fabric8 by jboss-fuse.

the class SubsystemResolver method getResourceMapping.

private Map<Resource, String> getResourceMapping(SimpleFilter resourceFilter) {
    Map<String, String> flats = getFlatSubsystemsMap();
    Map<Resource, List<Wire>> wiring = getWiring();
    Map<Resource, String> resources = new HashMap<>();
    SimpleFilter sf = createFilter(IDENTITY_NAMESPACE, "*", CAPABILITY_TYPE_ATTRIBUTE, TYPE_SUBSYSTEM);
    if (wiring != null) {
        for (Resource resource : wiring.keySet()) {
            if (findMatchingCapability(resourceFilter, resource.getCapabilities(null)) != null) {
                // Find the subsystem where this feature is installed
                Wire wire = findMatchingWire(sf, wiring.get(resource));
                if (wire != null) {
                    String region = (String) wire.getCapability().getAttributes().get(IDENTITY_NAMESPACE);
                    region = flats.get(region);
                    resources.put(resource, region);
                }
            }
        }
    }
    return resources;
}

Example 29 with Resource

use of io.fabric8.support.api.Resource 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);
    }
}

Example 30 with Resource

use of io.fabric8.support.api.Resource in project fabric8 by jboss-fuse.

the class SubsystemResolver method getBundles.

public Map<Resource, String> getBundles() {
    if (bundles == null) {
        String filter = String.format("(&(%s=*)(|(%s=%s)(%s=%s)))", IDENTITY_NAMESPACE, CAPABILITY_TYPE_ATTRIBUTE, TYPE_BUNDLE, CAPABILITY_TYPE_ATTRIBUTE, TYPE_FRAGMENT);
        SimpleFilter sf = SimpleFilter.parse(filter);
        bundles = getResourceMapping(sf);
    }
    return bundles;
}