Examples with Capability org.osgi.resource.Capability used on opensource projects

Example 6 with Capability

use of org.osgi.resource.Capability in project aries by apache.

the class ResolveContext method findProviders.

@Override
public List<Capability> findProviders(Requirement requirement) {
    ArrayList<Capability> capabilities = new ArrayList<Capability>();
    Resource resource = requirement.getResource();
    if (isResolved(resource) && Utils.isEffectiveResolve(requirement)) {
        processAlreadyResolvedResource(resource, requirement, capabilities);
    } else {
        installDependenciesOfRequirerIfNecessary(requirement);
        processNewlyResolvedResource(resource, requirement, capabilities);
    }
    capabilities.trimToSize();
    return capabilities;
}

Example 7 with Capability

use of org.osgi.resource.Capability in project aries by apache.

the class RawSubsystemResource method createFakeResource.

private static Resource createFakeResource(SubsystemManifest manifest) {
    Header<?> importServiceHeader = manifest.getHeaders().get(APPLICATION_IMPORT_SERVICE_HEADER);
    if (importServiceHeader == null) {
        return null;
    }
    List<Capability> modifiableCaps = new ArrayList<Capability>();
    final List<Capability> fakeCapabilities = Collections.unmodifiableList(modifiableCaps);
    Resource fakeResource = new Resource() {

        @Override
        public List<Capability> getCapabilities(String namespace) {
            if (namespace == null) {
                return fakeCapabilities;
            }
            List<Capability> results = new ArrayList<Capability>();
            for (Capability capability : fakeCapabilities) {
                if (namespace.equals(capability.getNamespace())) {
                    results.add(capability);
                }
            }
            return results;
        }

        @Override
        public List<Requirement> getRequirements(String namespace) {
            return Collections.emptyList();
        }
    };
    modifiableCaps.add(new OsgiIdentityCapability(fakeResource, Constants.ResourceTypeSynthesized, new Version(1, 0, 0), Constants.ResourceTypeSynthesized));
    Map<String, Map<String, String>> serviceImports = ManifestHeaderProcessor.parseImportString(importServiceHeader.getValue());
    for (Entry<String, Map<String, String>> serviceImport : serviceImports.entrySet()) {
        Collection<String> objectClasses = new ArrayList<String>(Arrays.asList(serviceImport.getKey()));
        String filter = serviceImport.getValue().get(IdentityNamespace.REQUIREMENT_FILTER_DIRECTIVE);
        BasicCapability.Builder capBuilder = new BasicCapability.Builder();
        capBuilder.namespace(ServiceNamespace.SERVICE_NAMESPACE);
        capBuilder.attribute(ServiceNamespace.CAPABILITY_OBJECTCLASS_ATTRIBUTE, objectClasses);
        if (filter != null)
            capBuilder.attributes(new HashMap<String, Object>(SimpleFilter.attributes(filter)));
        capBuilder.attribute("service.imported", "");
        capBuilder.resource(fakeResource);
        modifiableCaps.add(capBuilder.build());
    }
    return fakeResource;
}

Example 8 with Capability

use of org.osgi.resource.Capability in project aries by apache.

the class RawSubsystemResource method getCapabilities.

@Override
public List<Capability> getCapabilities(String namespace) {
    if (namespace == null)
        return Collections.unmodifiableList(capabilities);
    ArrayList<Capability> result = new ArrayList<Capability>(capabilities.size());
    for (Capability capability : capabilities) if (namespace.equals(capability.getNamespace()))
        result.add(capability);
    result.trimToSize();
    return Collections.unmodifiableList(result);
}

Example 9 with Capability

use of org.osgi.resource.Capability in project aries by apache.

the class RawSubsystemResource method computeRequirements.

private List<Requirement> computeRequirements(SubsystemManifest manifest) throws ResolutionException {
    if (isComposite(manifest)) {
        // Composites determine their own requirements.
        return manifest.toRequirements(this);
    }
    // Gather up all of the content resources for the subsystem.
    SubsystemContentHeader header = manifest.getSubsystemContentHeader();
    if (header == null) {
        // Empty subsystems (i.e. subsystems with no content) are allowed.
        return Collections.emptyList();
    }
    List<Requirement> requirements = header.toRequirements(this);
    List<Resource> resources = new ArrayList<Resource>(requirements.size());
    // TODO Do we need the system repository in here (e.g., for features)?
    // What about the preferred provider repository?
    // Search the local repository and service repositories for content.
    RepositoryServiceRepository serviceRepo = new RepositoryServiceRepository();
    // TODO Should we search the service repositories first, the assumption
    // being they will contain more current content than the subsystem
    // archive?
    CompositeRepository compositeRepo = new CompositeRepository(localRepository, serviceRepo);
    for (Requirement requirement : requirements) {
        Collection<Capability> capabilities = compositeRepo.findProviders(requirement);
        if (!capabilities.isEmpty()) {
            resources.add(capabilities.iterator().next().getResource());
        }
    }
    if (fakeImportServiceResource != null) {
        // Add the fake resource so the dependency calculator knows not to
        // return service requirements that are included in 
        // Application-ImportService.
        resources.add(fakeImportServiceResource);
    }
    // dependencies not satisfied by the content resources themselves.
    return new DependencyCalculator(resources).calculateDependencies();
}

Example 10 with Capability

use of org.osgi.resource.Capability in project aries by apache.

the class RawSubsystemResource method computeFileCapabilities.

private List<Capability> computeFileCapabilities(FileResource resource, IFile file, SubsystemManifest manifest) {
    SubsystemContentHeader ssch = manifest.getSubsystemContentHeader();
    if (ssch == null)
        return Collections.emptyList();
    for (Clause c : ssch.getClauses()) {
        Attribute er = c.getAttribute(ContentHandler.EMBEDDED_RESOURCE_ATTRIBUTE);
        if (er != null) {
            if (file.getName().equals(er.getValue())) {
                Map<String, Object> attrs = new HashMap<String, Object>();
                attrs.put(ContentHandler.EMBEDDED_RESOURCE_ATTRIBUTE, er.getValue());
                return Collections.<Capability>singletonList(new OsgiIdentityCapability(resource, c.getSymbolicName(), c.getVersionRange().getLeft(), c.getType(), attrs));
            }
        }
    }
    return Collections.emptyList();
}