Examples of org.osgi.framework.wiring.BundleWiring

org.osgi.framework.wiring.BundleWiring
A wiring for a bundle. Each time a bundle is resolved, a new bundle wiring for the bundle is created. A bundle wiring is associated with a bundle revision and represents the dependencies with other bundle wirings.
The bundle wiring for a bundle is the {@link #isCurrent() current} bundlewiring if it is the most recent bundle wiring for the current bundle revision. A bundle wiring is {@link #isInUse() in use} if it is the currentbundle wiring or if some other in use bundle wiring is dependent upon it. For example, another bundle wiring is wired to a capability provided by the bundle wiring. An in use bundle wiring for a non-fragment bundle has a class loader. All bundles with non-current, in use bundle wirings are considered removal pending. Once a bundle wiring is no longer in use, it is considered stale and is discarded by the framework.
The current bundle wiring for a bundle can be obtained by calling {@link Bundle#adapt(Class) bundle.adapt}(BundleWiring.class). A bundle in the INSTALLED or UNINSTALLED state does not have a current wiring, adapting such a bundle returns {@code null}. @ThreadSafe @author $Id: 367499c4b37683c52e622f479242a9caf7e59b0f $

    }
    
    private boolean canBeSatisfied(BundleRequirement req) {
        Bundle[] bundles = bundleContext.getBundles();
        for (Bundle bundle : bundles) {
            BundleWiring wiring = bundle.adapt(BundleWiring.class);
            if (wiring != null) {
                List<BundleCapability> caps = wiring.getCapabilities(null);
                for (BundleCapability cap : caps) {
                    if (req.matches(cap)) {
                        return true;
                    }
                }

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    public Map<String, Bundle> getWiredBundles(Bundle bundle) {
        // the set of bundles from which the bundle imports packages
        Map<String, Bundle> exporters = new HashMap<String, Bundle>();


        for (BundleRevision revision : bundle.adapt(BundleRevisions.class).getRevisions()) {
            BundleWiring wiring = revision.getWiring();
            if (wiring != null) {
                List<BundleWire> wires = wiring.getRequiredWires(BundleRevision.PACKAGE_NAMESPACE);
                if (wires != null) {
                    for (BundleWire wire : wires) {
                        if (wire.getProviderWiring().getBundle().getBundleId() != 0) {
                            exporters.put(wire.getCapability().getAttributes().get(BundleRevision.PACKAGE_NAMESPACE).toString(),
                                          wire.getProviderWiring().getBundle());

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        }
    }


    private static ClassLoader getClassloader(Bundle b) {
        //Somehow it fails to compile on JDK 7. Explicit cast helps
        BundleWiring bw = (BundleWiring) b.adapt(BundleWiring.class);
        if(bw != null){
            return bw.getClassLoader();
        }
        return null;
    }

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        String directory = path.substring(0, path.lastIndexOf('/'));
        String filename = path.substring(path.lastIndexOf('/') + 1);


        for (Bundle bundle : bundleContext.getBundles()) {


            BundleWiring wiring = bundle.adapt(BundleWiring.class);
            List<URL> entries = wiring.findEntries(directory, filename, 0);
            for (URL url : entries) {
                try {
                    return Streams.readBytes(url.openStream());
                } catch (IOException e) {
                    // Ignore and move to the next source

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        if (fragmentCands != null)
        {
            for (BundleCapability fragCand : fragmentCands)
            {
                // Only necessary for resolved fragments.
                BundleWiring wiring = fragCand.getRevision().getWiring();
                if (wiring != null)
                {
                    // Fragments only have host wire, so each wire represents
                    // an attached host.
                    for (BundleWire wire : wiring.getRequiredWires(null))
                    {
                        // If the capability is a package, then make sure the
                        // host actually provides it in its resolved capabilities,
                        // since it may be a substitutable export.
                        if (!fragCand.getNamespace().equals(BundleRevision.PACKAGE_NAMESPACE)

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            m_classPathIdx = 0;
        }
        if (!((BundleRevisionImpl) m_targetRevision)
            .hasInputStream(m_classPathIdx, url.getPath()))
        {
            BundleWiring wiring = m_targetRevision.getWiring();
            ClassLoader cl = (wiring != null) ? wiring.getClassLoader() : null;
            URL newurl = (cl != null) ? cl.getResource(url.getPath()) : null;
            if (newurl == null)
            {
                throw new IOException("Resource does not exist: " + url);
            }

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        {
            // The wires are supposed to be in declared capability order, so
            // get the capability list from the revision's wiring, which is
            // in declared order (including fragments), and use it to create
            // the provided wire list in declared order.
            BundleWiring wiring = revision.getWiring();
            if (wiring != null)
            {
                List<BundleCapability> resolvedCaps = wiring.getCapabilities(namespace);
                for (BundleCapability resolvedCap : resolvedCaps)
                {
                    Set<BundleWire> dependentWires = providedCaps.get(resolvedCap);
                    if (dependentWires != null)
                    {

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        {
            // We need to special case fragments,
            // since their dependents are their hosts.
            if (Util.isFragment(revision))
            {
                BundleWiring wiring = revision.getWiring();
                if (wiring != null)
                {
                    for (BundleWire bw : wiring.getRequiredWires(null))
                    {
                        result.add(((BundleWireImpl) bw).getProvider().getBundle());
                    }
                }
            }

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    public synchronized void removeDependencies(Bundle bundle)
    {
        List<BundleRevision> revs = bundle.adapt(BundleRevisions.class).getRevisions();
        for (BundleRevision rev : revs)
        {
            BundleWiring wiring = rev.getWiring();
            if (wiring != null)
            {
                for (BundleWire bw : wiring.getRequiredWires(null))
                {
                    Map<BundleCapability, Set<BundleWire>> caps =
                        m_dependentsMap.get(bw.getProvider());
                    if (caps != null)
                    {

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        }


        // Create a list of the revision and any attached fragment revisions.
        List<BundleRevision> result = new ArrayList<BundleRevision>();
        result.add(br);
        BundleWiring wiring = br.getWiring();
        if (wiring != null)
        {
            List<BundleRevision> fragments = Util.getFragments(wiring);
            if (fragments != null)
            {

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