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

Example 16 with Requirement

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

the class SubsystemResource method findContent.

private Resource findContent(Requirement requirement) throws BundleException, IOException, InvalidSyntaxException, URISyntaxException {
    Map<Requirement, Collection<Capability>> map;
    // the case of a persisted subsystem.
    if (isUnscoped()) {
        map = Activator.getInstance().getSystemRepository().findProviders(Collections.singleton(requirement));
        if (map.containsKey(requirement)) {
            Collection<Capability> capabilities = map.get(requirement);
            for (Capability capability : capabilities) {
                Resource provider = capability.getResource();
                if (provider instanceof BundleRevision) {
                    if (getRegion().contains(((BundleRevision) provider).getBundle())) {
                        return provider;
                    }
                } else if (provider instanceof BasicSubsystem) {
                    if (getRegion().equals(((BasicSubsystem) provider).getRegion())) {
                        return provider;
                    }
                }
            }
        }
    }
    // First search the local repository.
    map = resource.getLocalRepository().findProviders(Collections.singleton(requirement));
    Collection<Capability> capabilities = map.get(requirement);
    if (capabilities.isEmpty()) {
        // Nothing found in the local repository so search the repository services.
        capabilities = new RepositoryServiceRepository().findProviders(requirement);
    }
    if (capabilities.isEmpty()) {
        // Nothing found period.
        return null;
    }
    for (Capability capability : capabilities) {
        if (!IdentityNamespace.TYPE_FRAGMENT.equals(capability.getAttributes().get(IdentityNamespace.CAPABILITY_TYPE_ATTRIBUTE))) {
            // See ARIES-1425.
            return capability.getResource();
        }
    }
    // Nothing here but fragment bundles. Return the first one.
    return capabilities.iterator().next().getResource();
}

Example 17 with Requirement

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

the class SubsystemResource method setImportIsolationPolicy.

private void setImportIsolationPolicy(Map<Resource, List<Wire>> resolution) throws Exception {
    if (!isApplication()) {
        return;
    }
    SubsystemContentHeader contentHeader = getSubsystemManifest().getSubsystemContentHeader();
    // Prepare the regions and filter builder to set the sharing policy.
    Region from = getRegion();
    Region to = ((BasicSubsystem) getParents().iterator().next()).getRegion();
    RegionFilterBuilder builder = from.getRegionDigraph().createRegionFilterBuilder();
    // Always provide visibility to this subsystem's service registration.
    addSubsystemServiceImportToSharingPolicy(builder, to);
    for (Resource resource : resolution.keySet()) {
        if (!contentHeader.contains(resource)) {
            continue;
        }
        // If the resource is content but the wire provider is not,
        // the sharing policy must be updated.
        List<Wire> wires = resolution.get(resource);
        for (Wire wire : wires) {
            Resource provider = wire.getProvider();
            // visible.
            if (contentHeader.contains(provider)) {
                continue;
            }
            // requirements become part of the sharing policy.
            if (!(wire.getCapability() instanceof DependencyCalculator.MissingCapability) && Constants.ResourceTypeSynthesized.equals(ResourceHelper.getTypeAttribute(provider))) {
                continue;
            }
            // The requirement must be added to the sharing policy.
            Requirement requirement = wire.getRequirement();
            List<String> namespaces = new ArrayList<String>(2);
            namespaces.add(requirement.getNamespace());
            if (ServiceNamespace.SERVICE_NAMESPACE.equals(namespaces.get(0))) {
                // Both service capabilities and services must be visible.
                namespaces.add(RegionFilter.VISIBLE_SERVICE_NAMESPACE);
            }
            String filter = requirement.getDirectives().get(Namespace.REQUIREMENT_FILTER_DIRECTIVE);
            if (filter == null) {
                for (String namespace : namespaces) builder.allowAll(namespace);
            } else {
                for (String namespace : namespaces) builder.allow(namespace, filter);
            }
        }
    }
    // Always add access to osgi.ee and osgi.native namespaces
    setImplicitAccessToNativeAndEECapabilities(builder);
    // Now set the sharing policy, if the regions are different.
    RegionFilter regionFilter = builder.build();
    from.connectRegion(to, regionFilter);
}

Example 18 with Requirement

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

the class SubsystemResource method computeContentResources.

private void computeContentResources(SubsystemManifest manifest) throws BundleException, IOException, InvalidSyntaxException, URISyntaxException {
    SubsystemContentHeader contentHeader = manifest.getSubsystemContentHeader();
    if (contentHeader == null)
        return;
    for (SubsystemContentHeader.Clause clause : contentHeader.getClauses()) {
        Requirement requirement = clause.toRequirement(this);
        Resource resource = findContent(requirement);
        if (resource == null) {
            if (clause.isMandatory())
                throw new SubsystemException("A required content resource could not be found. This means the resource was either missing or not recognized as a supported resource format due to, for example, an invalid bundle manifest or blueprint XML file. Turn on debug logging for more information. The resource was: " + requirement);
            continue;
        }
        addContentResource(resource);
    }
}

Example 19 with Requirement

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

the class SubsystemResource method getRequirements.

@Override
public List<Requirement> getRequirements(String namespace) {
    if (isScoped())
        return resource.getRequirements(namespace);
    else {
        ArrayList<Requirement> result = new ArrayList<Requirement>();
        result.addAll(resource.getRequirements(namespace));
        for (Resource r : getContentResources()) result.addAll(r.getRequirements(namespace));
        result.trimToSize();
        return result;
    }
}

Example 20 with Requirement

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

the class Aries1425Test method testToRequirement.

@Test
public void testToRequirement() {
    SubsystemContentHeader header = new SubsystemContentHeader(HEADER_1);
    Collection<SubsystemContentHeader.Clause> clauses = header.getClauses();
    assertEquals("Wrong size", 3, clauses.size());
    Map<String, SubsystemContentHeader.Clause> map = new HashMap<String, SubsystemContentHeader.Clause>(3);
    for (SubsystemContentHeader.Clause clause : clauses) {
        map.put(clause.toString(), clause);
    }
    Resource resource = new Resource() {

        @Override
        public List<Capability> getCapabilities(String namespace) {
            return Collections.emptyList();
        }

        @Override
        public List<Requirement> getRequirements(String namespace) {
            return Collections.emptyList();
        }
    };
    SubsystemContentHeader.Clause clause = map.get(BUNDLE_A);
    Requirement requirement = clause.toRequirement(resource);
    assertTrue("Wrong requirement", ResourceHelper.matches(requirement, new OsgiIdentityCapability(resource, BUNDLE_A, Version.emptyVersion, IdentityNamespace.TYPE_FRAGMENT)));
    assertTrue("Wrong requirement", ResourceHelper.matches(requirement, new OsgiIdentityCapability(resource, BUNDLE_A, Version.emptyVersion, IdentityNamespace.TYPE_BUNDLE)));
    clause = map.get(BUNDLE_B);
    requirement = clause.toRequirement(resource);
    assertFalse("Wrong requirement", ResourceHelper.matches(requirement, new OsgiIdentityCapability(resource, "bundle.b", Version.emptyVersion, IdentityNamespace.TYPE_FRAGMENT)));
    assertTrue("Wrong requirement", ResourceHelper.matches(requirement, new OsgiIdentityCapability(resource, "bundle.b", Version.emptyVersion, IdentityNamespace.TYPE_BUNDLE)));
    clause = map.get(BUNDLE_C);
    requirement = clause.toRequirement(resource);
    assertTrue("Wrong requirement", ResourceHelper.matches(requirement, new OsgiIdentityCapability(resource, "bundle.c", Version.emptyVersion, IdentityNamespace.TYPE_FRAGMENT)));
    assertFalse("Wrong requirement", ResourceHelper.matches(requirement, new OsgiIdentityCapability(resource, "bundle.c", Version.emptyVersion, IdentityNamespace.TYPE_BUNDLE)));
}