Examples with RequirementImpl org.apache.karaf.features.internal.resolver.RequirementImpl used on opensource projects

Example 1 with RequirementImpl

use of org.apache.karaf.features.internal.resolver.RequirementImpl in project karaf by apache.

the class OfflineResolver method resolve.

public static void resolve(String resolutionFile) throws Exception {
    Map<String, Object> resolution;
    try (BufferedReader reader = Files.newBufferedReader(Paths.get(resolutionFile), StandardCharsets.UTF_8)) {
        resolution = (Map<String, Object>) JsonReader.read(reader);
    }
    final Repository globalRepository;
    if (resolution.containsKey("globalRepository")) {
        globalRepository = readRepository(resolution.get("globalRepository"));
    } else {
        globalRepository = null;
    }
    final Repository repository = readRepository(resolution.get("repository"));
    Resolver resolver = new ResolverImpl(new Logger(Logger.LOG_ERROR));
    Map<Resource, List<Wire>> wiring = resolver.resolve(new ResolveContext() {

        private final CandidateComparator candidateComparator = new CandidateComparator(r -> 0);

        @Override
        public Collection<Resource> getMandatoryResources() {
            List<Resource> resources = new ArrayList<>();
            Requirement req = new RequirementImpl(null, IDENTITY_NAMESPACE, Collections.emptyMap(), Collections.emptyMap(), SimpleFilter.parse("(" + IDENTITY_NAMESPACE + "=root)"));
            Collection<Capability> identities = repository.findProviders(Collections.singleton(req)).get(req);
            for (Capability identity : identities) {
                resources.add(identity.getResource());
            }
            return resources;
        }

        @Override
        public List<Capability> findProviders(Requirement requirement) {
            List<Capability> caps = new ArrayList<>();
            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);
                    }
                }
            }
            // Sort caps
            Collections.sort(caps, candidateComparator);
            return caps;
        }

        @Override
        public int insertHostedCapability(List<Capability> capabilities, HostedCapability hostedCapability) {
            int idx = Collections.binarySearch(capabilities, hostedCapability, candidateComparator);
            if (idx < 0) {
                idx = Math.abs(idx + 1);
            }
            capabilities.add(idx, hostedCapability);
            return idx;
        }

        @Override
        public boolean isEffective(Requirement requirement) {
            return true;
        }

        @Override
        public Map<Resource, Wiring> getWirings() {
            return Collections.emptyMap();
        }
    });
}

Example 2 with RequirementImpl

use of org.apache.karaf.features.internal.resolver.RequirementImpl in project karaf by apache.

the class StaxParser method parseRequirement.

private static RequirementImpl parseRequirement(XMLStreamReader reader, ResourceImpl resource) throws XMLStreamException {
    String[] namespace = new String[1];
    Map<String, String> directives = new HashMap<>();
    Map<String, Object> attributes = new HashMap<>();
    parseClause(reader, namespace, directives, attributes);
    sanityCheckEndElement(reader, reader.getEventType(), REQUIREMENT);
    String filterStr = directives.get(Constants.FILTER_DIRECTIVE);
    SimpleFilter sf = (filterStr != null) ? SimpleFilter.parse(filterStr) : SimpleFilter.convert(attributes);
    return new RequirementImpl(resource, namespace[0], directives, attributes, sf);
}

Example 3 with RequirementImpl

use of org.apache.karaf.features.internal.resolver.RequirementImpl in project karaf by apache.

the class BaseRepository method findProviders.

@Override
public Map<Requirement, Collection<Capability>> findProviders(Collection<? extends Requirement> requirements) {
    Map<Requirement, Collection<Capability>> result = new HashMap<>();
    for (Requirement requirement : requirements) {
        CapabilitySet set = capSets.get(requirement.getNamespace());
        if (set != null) {
            SimpleFilter sf;
            if (requirement instanceof RequirementImpl) {
                sf = ((RequirementImpl) requirement).getFilter();
            } else {
                String filter = requirement.getDirectives().get(Constants.FILTER_DIRECTIVE);
                sf = (filter != null) ? SimpleFilter.parse(filter) : new SimpleFilter(null, null, SimpleFilter.MATCH_ALL);
            }
            result.put(requirement, set.match(sf, true));
        } else {
            result.put(requirement, Collections.emptyList());
        }
    }
    return result;
}

Example 4 with RequirementImpl

use of org.apache.karaf.features.internal.resolver.RequirementImpl in project karaf by apache.

the class SubsystemResolver method toJson.

private Object toJson(Repository repository) {
    Requirement req = new RequirementImpl(null, IDENTITY_NAMESPACE, Collections.emptyMap(), Collections.emptyMap(), new SimpleFilter(null, null, SimpleFilter.MATCH_ALL));
    Collection<Capability> identities = repository.findProviders(Collections.singleton(req)).get(req);
    List<Object> resources = new ArrayList<>();
    for (Capability identity : identities) {
        String id = BaseClause.toString(null, identity.getNamespace(), identity.getAttributes(), identity.getDirectives());
        resources.add(toJson(identity.getResource()));
    }
    return resources;
}

Example 5 with RequirementImpl

use of org.apache.karaf.features.internal.resolver.RequirementImpl in project karaf by apache.

the class Subsystem method cloneResource.

ResourceImpl cloneResource(Resource resource) {
    ResourceImpl res = new ResourceImpl();
    for (Capability cap : resource.getCapabilities(null)) {
        res.addCapability(new CapabilityImpl(res, cap.getNamespace(), new HashMap<>(cap.getDirectives()), new HashMap<>(cap.getAttributes())));
    }
    for (Requirement req : resource.getRequirements(null)) {
        SimpleFilter sf;
        if (req instanceof RequirementImpl) {
            sf = ((RequirementImpl) req).getFilter();
        } else if (req.getDirectives().containsKey(REQUIREMENT_FILTER_DIRECTIVE)) {
            sf = SimpleFilter.parse(req.getDirectives().get(REQUIREMENT_FILTER_DIRECTIVE));
        } else {
            sf = SimpleFilter.convert(req.getAttributes());
        }
        res.addRequirement(new RequirementImpl(res, req.getNamespace(), new HashMap<>(req.getDirectives()), new HashMap<>(req.getAttributes()), sf));
    }
    return res;
}