Class ResolverImpl

java.lang.Object
org.apache.felix.resolver.ResolverImpl
All Implemented Interfaces:
Resolver
public class ResolverImpl extends Object implements Resolver

  • Field Details

    • m_acc

      private final AccessControlContext m_acc

    • m_logger

      private final Logger m_logger

    • m_parallelism

      private final int m_parallelism

    • m_executor

      private final Executor m_executor

  • Constructor Details

    • ResolverImpl

      public ResolverImpl(Logger logger)

    • ResolverImpl

      public ResolverImpl(Logger logger, int parallelism)

    • ResolverImpl

      public ResolverImpl(Logger logger, Executor executor)

  • Method Details

    • resolve

      public Map<org.osgi.resource.Resource, List<org.osgi.resource.Wire>> resolve(ResolveContext rc) throws ResolutionException
      Description copied from interface: Resolver
      Resolve the specified resolve context and return any new resources and wires to the caller.

      The resolver considers two groups of resources:

      • Mandatory - any resource in the mandatory group must be resolved. A failure to satisfy any mandatory requirement for these resources will result in throwing a ResolutionException
      • Optional - any resource in the optional group may be resolved. A failure to satisfy a mandatory requirement for a resource in this group will not fail the overall resolution but no resources or wires will be returned for that resource.

      The resolve method returns the delta between the start state defined by ResolveContext.getWirings() and the end resolved state. That is, only new resources and wires are included.

      The behavior of the resolver is not defined if the specified resolve context supplies inconsistent information.

      Specified by:
      resolve in interface Resolver
      Parameters:
      rc - The resolve context for the resolve operation. Must not be null.
      Returns:
      The new resources and wires required to satisfy the specified resolve context. The returned map is the property of the caller and can be modified by the caller.
      Throws:
      ResolutionException - If the resolution cannot be satisfied.

    • resolve

      public Map<org.osgi.resource.Resource, List<org.osgi.resource.Wire>> resolve(ResolveContext rc, Executor executor) throws ResolutionException
      Throws:
      ResolutionException

    • checkConsistency

      private ResolutionError checkConsistency(Executor executor, ResolverImpl.ResolveSession session, List<Candidates> usesPermutations, List<Candidates> importPermutations, Candidates allCandidates, Map<org.osgi.resource.Resource, ResolutionError> currentFaultyResources, Map<org.osgi.resource.Resource, org.osgi.resource.Resource> hosts, boolean dynamic)

    • resolve

      public Map<org.osgi.resource.Resource, List<org.osgi.resource.Wire>> resolve(ResolveContext rc, org.osgi.resource.Resource host, org.osgi.resource.Requirement dynamicReq, List<org.osgi.resource.Capability> matches) throws ResolutionException
      Resolves a dynamic requirement for the specified host resource using the specified ResolveContext. The dynamic requirement may contain wild cards in its filter for the package name. The matching candidates are used to resolve the requirement and the resolve context is not asked to find providers for the dynamic requirement. The host resource is expected to not be a fragment, to already be resolved and have an existing wiring provided by the resolve context.

      This operation may resolve additional resources in order to resolve the dynamic requirement. The returned map will contain entries for each resource that got resolved in addition to the specified host resource. The wire list for the host resource will only contain a single wire which is for the dynamic requirement.

      Parameters:
      rc - the resolve context
      host - the hosting resource
      dynamicReq - the dynamic requirement
      matches - a list of matching capabilities
      Returns:
      The new resources and wires required to satisfy the specified dynamic requirement. The returned map is the property of the caller and can be modified by the caller.
      Throws:
      ResolutionException

    • getWireCandidates

      private static List<ResolverImpl.WireCandidate> getWireCandidates(ResolverImpl.ResolveSession session, Candidates allCandidates, org.osgi.resource.Resource resource)

    • getPackages

      private static ResolverImpl.Packages getPackages(ResolverImpl.ResolveSession session, Candidates allCandidates, Map<org.osgi.resource.Resource, List<ResolverImpl.WireCandidate>> allWireCandidates, Map<org.osgi.resource.Resource, ResolverImpl.Packages> allPackages, org.osgi.resource.Resource resource, ResolverImpl.Packages resourcePkgs)

    • computeUses

      private static void computeUses(ResolverImpl.ResolveSession session, Map<org.osgi.resource.Resource, List<ResolverImpl.WireCandidate>> allWireCandidates, Map<org.osgi.resource.Resource, ResolverImpl.Packages> resourcePkgMap, org.osgi.resource.Resource resource)

    • mergeCandidatePackages

      private static void mergeCandidatePackages(ResolverImpl.ResolveSession session, Map<org.osgi.resource.Resource, ResolverImpl.Packages> resourcePkgMap, Candidates allCandidates, ResolverImpl.Packages packages, org.osgi.resource.Requirement currentReq, org.osgi.resource.Capability candCap, Set<org.osgi.resource.Capability> capabilityCycles, Set<org.osgi.resource.Resource> visitedRequiredBundles)

    • mergeCandidatePackage

      private static void mergeCandidatePackage(OpenHashMap<String, List<ResolverImpl.Blame>> packages, org.osgi.resource.Requirement currentReq, org.osgi.resource.Capability candCap)

    • mergeUses

      private static void mergeUses(ResolverImpl.ResolveSession session, org.osgi.resource.Resource current, ResolverImpl.Packages currentPkgs, org.osgi.resource.Capability mergeCap, List<org.osgi.resource.Requirement> blameReqs, org.osgi.resource.Capability matchingCap, Map<org.osgi.resource.Resource, ResolverImpl.Packages> resourcePkgMap, Set<org.osgi.resource.Capability> cycleMap)

    • calculatePackageSpaces

      private static Map<org.osgi.resource.Resource, ResolverImpl.Packages> calculatePackageSpaces(Executor innerExecutor, ResolverImpl.ResolveSession session, Candidates allCandidates, Collection<org.osgi.resource.Resource> hosts)

    • parseUses

      private static List<String> parseUses(String s)

    • addUsedBlame

      private static void addUsedBlame(ArrayMap<org.osgi.resource.Capability, ResolverImpl.UsedBlames> usedBlames, org.osgi.resource.Capability usedCap, List<org.osgi.resource.Requirement> blameReqs, org.osgi.resource.Capability matchingCap)

    • checkPackageSpaceConsistency

      private ResolutionError checkPackageSpaceConsistency(ResolverImpl.ResolveSession session, List<Candidates> usesPermutations, List<Candidates> importPermutations, org.osgi.resource.Resource resource, Candidates allCandidates, boolean dynamic, Map<org.osgi.resource.Resource, ResolverImpl.Packages> resourcePkgMap, Map<org.osgi.resource.Resource, Object> resultCache)

    • checkMultiple

      private boolean checkMultiple(ResolverImpl.ResolveSession session, ResolverImpl.UsedBlames usedBlames, ResolverImpl.Blame usedBlame, Candidates permutation)

    • calculateExportedPackages

      private static OpenHashMap<String, ResolverImpl.Blame> calculateExportedPackages(ResolverImpl.ResolveSession session, Candidates allCandidates, org.osgi.resource.Resource resource, OpenHashMap<String, ResolverImpl.Blame> exports)

    • isCompatible

      private static boolean isCompatible(ResolverImpl.Blame currentBlame, org.osgi.resource.Capability candCap, Map<org.osgi.resource.Resource, ResolverImpl.Packages> resourcePkgMap)

    • isCompatible

      private static boolean isCompatible(List<ResolverImpl.Blame> currentBlames, org.osgi.resource.Capability candCap, Map<org.osgi.resource.Resource, ResolverImpl.Packages> resourcePkgMap)

    • getPackageSources

      private static Set<org.osgi.resource.Capability> getPackageSources(org.osgi.resource.Capability cap, Map<org.osgi.resource.Resource, ResolverImpl.Packages> resourcePkgMap)

    • getPackageSourcesInternal

      private static void getPackageSourcesInternal(ResolverImpl.ResolveSession session, Map<org.osgi.resource.Resource, ResolverImpl.Packages> resourcePkgMap, org.osgi.resource.Resource resource, ResolverImpl.Packages packages)

    • getDeclaredResource

      private static org.osgi.resource.Resource getDeclaredResource(org.osgi.resource.Resource resource)

    • getDeclaredCapability

      private static org.osgi.resource.Capability getDeclaredCapability(org.osgi.resource.Capability c)

    • getDeclaredRequirement

      private static org.osgi.resource.Requirement getDeclaredRequirement(org.osgi.resource.Requirement r)

    • populateWireMap

      private static Map<org.osgi.resource.Resource, List<org.osgi.resource.Wire>> populateWireMap(ResolveContext rc, org.osgi.resource.Resource resource, Map<org.osgi.resource.Resource, List<org.osgi.resource.Wire>> wireMap, Candidates allCandidates)

    • createWire

      private static org.osgi.resource.Wire createWire(org.osgi.resource.Requirement requirement, Candidates allCandidates)

    • isPayload

      private static boolean isPayload(org.osgi.resource.Requirement fragmentReq)

    • populateDynamicWireMap

      private static Map<org.osgi.resource.Resource, List<org.osgi.resource.Wire>> populateDynamicWireMap(ResolveContext rc, org.osgi.resource.Resource resource, org.osgi.resource.Requirement dynReq, Map<org.osgi.resource.Resource, List<org.osgi.resource.Wire>> wireMap, Candidates allCandidates)

    • dumpResourcePkgMap

      private static void dumpResourcePkgMap(ResolveContext rc, Map<org.osgi.resource.Resource, ResolverImpl.Packages> resourcePkgMap)

    • dumpResourcePkgs

      private static void dumpResourcePkgs(ResolveContext rc, org.osgi.resource.Resource resource, ResolverImpl.Packages packages)