public static boolean isBundleFragment(Bundle bundle) {
boolean result = false;
final BundleRevision revision = bundle.adapt(BundleRevision.class);
if (revision != null) {
result = (revision.getTypes() & BundleRevision.TYPE_FRAGMENT) != 0;
}
return result;
}
public static BundleWiringDTO newBundleWiringDTO(BundleRevision revision) {
if (revision == null) {
return null;
}
BundleWiringDTO dto = new DTOBuilder().getBundleWiringDTO(revision.getWiring());
return dto;
}
private List<XPackageCapability> getPackageCapabilities(BundleRevision brev) {
List<XPackageCapability> result = new ArrayList<XPackageCapability>();
for (Capability aux : brev.getCapabilities(WIRING_PACKAGE_NAMESPACE)) {
XPackageCapability cap = (XPackageCapability) aux;
result.add(cap);
}
return result;
}
private List<XPackageRequirement> getDynamicPackageRequirements(BundleRevision brev) {
List<XPackageRequirement> result = new ArrayList<XPackageRequirement>();
for (Requirement aux : brev.getRequirements(WIRING_PACKAGE_NAMESPACE)) {
XPackageRequirement req = (XPackageRequirement) aux;
if (req.isDynamic()) {
result.add(req);
}
}
return result;
}
@Test
public void testUpdateHostToFragment() throws Exception {
Bundle bundleA = installBundle(getHostA());
try {
bundleA.start();
assertBundleState(Bundle.ACTIVE, bundleA.getState());
BundleRevisions brevs = bundleA.adapt(BundleRevisions.class);
assertEquals(1, brevs.getRevisions().size());
BundleRevision brev = brevs.getRevisions().get(0);
assertEquals(0, brev.getTypes());
bundleA.update(toInputStream(getFragmentA()));
brevs = bundleA.adapt(BundleRevisions.class);
Assert.assertNotSame(brev, brevs.getRevisions().get(0));
brev = brevs.getRevisions().get(0);
assertEquals(BundleRevision.TYPE_FRAGMENT, brev.getTypes());
} finally {
bundleA.uninstall();
}
}
private BundleRevisionDTO getBundleRevisionDTO(BundleRevision revision) {
if (revision == null) {
return null;
}
BundleRevisionDTO dto = resources.get(revision);
if (dto != null) {
return dto;
}
dto = new BundleRevisionDTO();
dto.id = identifier(revision);
resources.put(revision, dto);
dto.bundle = revision.getBundle().getBundleId();
dto.symbolicName = revision.getSymbolicName();
dto.type = revision.getTypes();
dto.version = revision.getVersion().toString();
dto.capabilities = getListCapabilityDTO(revision.getDeclaredCapabilities(null));
dto.requirements = getListRequirementDTO(revision.getDeclaredRequirements(null));
return dto;
}
public boolean isAssignableTo(Bundle requester, String className) {
// Always return true if the requester is the same as the provider.
if (requester == m_bundle) {
return true;
}
// Boolean flag.
boolean allow = true;
// Get the package.
String pkgName = Util.getClassPackage(className);
// Get package wiring from service requester.
BundleRevision requesterRevision = requester.adapt(BundleRevision.class);
BundleWire requesterWire = Util.getWire(requesterRevision, pkgName);
BundleCapability requesterCap = Util.getPackageCapability(requesterRevision, pkgName);
// Get package wiring from service provider.
BundleRevision providerRevision = m_bundle.adapt(BundleRevision.class);
BundleWire providerWire = Util.getWire(providerRevision, pkgName);
BundleCapability providerCap = Util.getPackageCapability(providerRevision, pkgName);
// There are four situations that may occur here:
// 1. Neither the requester, nor provider have wires for the package.
// 2. The requester does not have a wire for the package.
// 3. The provider does not have a wire for the package.
// 4. Both the requester and provider have a wire for the package.
// For case 1, if the requester does not have access to the class at
// all, we assume it is using reflection and do not filter. If the
// requester does have access to the class, then we make sure it is
// the same class as the service. For case 2, we do not filter if the
// requester is the exporter of the package to which the provider of
// the service is wired. Otherwise, as in case 1, if the requester
// does not have access to the class at all, we do not filter, but if
// it does have access we check if it is the same class accessible to
// the providing revision. For case 3, the provider will not have a wire
// if it is exporting the package, so we determine if the requester
// is wired to it or somehow using the same class. For case 4, we
// simply compare the exporting revisions from the package wiring to
// determine if we need to filter the service reference.
// Case 1: Both requester and provider have no wire.
if ((requesterWire == null) && (providerWire == null)) {
// If requester has no access then true, otherwise service
// registration must have same class as requester.
try {
Class requestClass =
((BundleWiringImpl) requesterRevision.getWiring()).getClassByDelegation(className);
allow = getRegistration().isClassAccessible(requestClass);
} catch (Exception ex) {
// Requester has no access to the class, so allow it, since
// we assume the requester is using reflection.
allow = true;
}
}
// Case 2: Requester has no wire, but provider does.
else if ((requesterWire == null) && (providerWire != null)) {
// If the requester exports the package, then the provider must
// be wired to it.
if (requesterCap != null) {
allow = providerWire.getProviderWiring().getRevision().equals(requesterRevision);
}
// Otherwise, check if the requester has access to the class and,
// if so, if it is the same class as the provider.
else {
try {
// Try to load class from requester.
Class requestClass =
((BundleWiringImpl) requesterRevision.getWiring()).getClassByDelegation(className);
try {
// If requester has access to the class, verify it is the
// same class as the provider.
allow =
(((BundleWiringImpl) providerRevision.getWiring()).getClassByDelegation(className)
== requestClass);
} catch (Exception ex) {
allow = false;
}
} catch (Exception ex) {
// Requester has no access to the class, so allow it, since
// we assume the requester is using reflection.
allow = true;
}
}
}
// Case 3: Requester has a wire, but provider does not.
else if ((requesterWire != null) && (providerWire == null)) {
// If the provider exports the package, then the requester must
// be wired to it.
if (providerCap != null) {
allow = requesterWire.getProviderWiring().getRevision().equals(providerRevision);
}
// If the provider is not the exporter of the requester's package,
// then try to use the service registration to see if the requester's
// class is accessible.
else {
try {
// Load the class from the requesting bundle.
Class requestClass =
((BundleWiringImpl) requesterRevision.getWiring()).getClassByDelegation(className);
// Get the service registration and ask it to check
// if the service object is assignable to the requesting
// bundle's class.
allow = getRegistration().isClassAccessible(requestClass);
} catch (Exception ex) {
// Filter to be safe.
allow = false;
}
}
}
// Case 4: Both requester and provider have a wire.
else {
// Include service reference if the wires have the
// same source revision.
allow =
providerWire
.getProviderWiring()
.getRevision()
.equals(requesterWire.getProviderWiring().getRevision());
}
return allow;
}
/**
* Add an extension bundle. The bundle will be added to the parent classloader and it's exported
* packages will be added to the module definition exports of this instance. Subsequently, they
* are available form the instance in it's role as content loader.
*
* @param felix the framework instance the given extension bundle comes from.
* @param bundle the extension bundle to add.
* @throws BundleException if extension bundles are not supported or this is not a framework
* extension.
* @throws SecurityException if the caller does not have the needed
* AdminPermission.EXTENSIONLIFECYCLE and security is enabled.
* @throws Exception in case something goes wrong.
*/
synchronized void addExtensionBundle(Felix felix, BundleImpl bundle)
throws SecurityException, BundleException, Exception {
Object sm = System.getSecurityManager();
if (sm != null) {
((SecurityManager) sm)
.checkPermission(new AdminPermission(bundle, AdminPermission.EXTENSIONLIFECYCLE));
}
if (!((BundleProtectionDomain) bundle.getProtectionDomain())
.impliesDirect(new AllPermission())) {
throw new SecurityException("Extension Bundles must have AllPermission");
}
String directive =
ManifestParser.parseExtensionBundleHeader(
(String)
((BundleRevisionImpl) bundle.adapt(BundleRevision.class))
.getHeaders()
.get(Constants.FRAGMENT_HOST));
// We only support classpath extensions (not bootclasspath).
if (!Constants.EXTENSION_FRAMEWORK.equals(directive)) {
throw new BundleException(
"Unsupported Extension Bundle type: " + directive,
new UnsupportedOperationException("Unsupported Extension Bundle type!"));
}
try {
// Merge the exported packages with the exported packages of the systembundle.
List<BundleCapability> exports = null;
try {
exports =
ManifestParser.parseExportHeader(
m_logger,
m_systemBundleRevision,
(String)
((BundleRevisionImpl) bundle.adapt(BundleRevision.class))
.getHeaders()
.get(Constants.EXPORT_PACKAGE),
m_systemBundleRevision.getSymbolicName(),
m_systemBundleRevision.getVersion());
exports = aliasSymbolicName(exports);
} catch (Exception ex) {
m_logger.log(
bundle,
Logger.LOG_ERROR,
"Error parsing extension bundle export statement: "
+ ((BundleRevisionImpl) bundle.adapt(BundleRevision.class))
.getHeaders()
.get(Constants.EXPORT_PACKAGE),
ex);
return;
}
// Add the bundle as extension if we support extensions
if (m_extensionManager != null) {
// This needs to be the private instance.
m_extensionManager.addExtension(felix, bundle);
} else {
// We don't support extensions (i.e., the parent is not an URLClassLoader).
m_logger.log(
bundle,
Logger.LOG_WARNING,
"Unable to add extension bundle to FrameworkClassLoader - Maybe not an URLClassLoader?");
throw new UnsupportedOperationException(
"Unable to add extension bundle to FrameworkClassLoader - Maybe not an URLClassLoader?");
}
appendCapabilities(exports);
} catch (Exception ex) {
throw ex;
}
BundleRevisionImpl bri = (BundleRevisionImpl) bundle.adapt(BundleRevision.class);
List<BundleRequirement> reqs = bri.getDeclaredRequirements(BundleRevision.HOST_NAMESPACE);
List<BundleCapability> caps = getCapabilities(BundleRevision.HOST_NAMESPACE);
BundleWire bw = new BundleWireImpl(bri, reqs.get(0), m_systemBundleRevision, caps.get(0));
bri.resolve(
new BundleWiringImpl(
m_logger,
m_configMap,
null,
bri,
null,
Collections.singletonList(bw),
Collections.EMPTY_MAP,
Collections.EMPTY_MAP));
felix.getDependencies().addDependent(bw);
felix.setBundleStateAndNotify(bundle, Bundle.RESOLVED);
}
private List<Definition> resolveAspectsForBundle(
final List<String> fingerprintElements,
final Bundle bundle,
final BundleRevision bundleRevision) {
final List<Definition> result = new ArrayList<Definition>();
final BundleWiring wiring = bundleRevision.getWiring();
if (wiring != null && weavingBundleContext != null) {
Definition aspects = null;
// fragments
for (final BundleWire hostWire : wiring.getProvidedWires(HostNamespace.HOST_NAMESPACE)) {
final Bundle fragmentBundle = hostWire.getRequirer().getBundle();
if (fragmentBundle != null) {
aspects = aspectAdmin.getAspectDefinition(fragmentBundle);
if (aspects != null) {
result.add(aspects);
fingerprintElements.add(
fragmentBundle.getSymbolicName()
+ ":" //$NON-NLS-1$
+ hostWire.getRequirer().getVersion().toString());
}
}
}
// required bundles
final List<BundleWire> requiredBundles =
wiring.getRequiredWires(BundleNamespace.BUNDLE_NAMESPACE);
ManifestElement[] requireHeaders = null;
if (!requiredBundles.isEmpty()) {
try {
requireHeaders =
ManifestElement.parseHeader(
Constants.REQUIRE_BUNDLE,
bundle.getHeaders("").get(Constants.REQUIRE_BUNDLE)); // $NON-NLS-1$
} catch (final BundleException e) {
}
}
for (final BundleWire requiredBundleWire : requiredBundles) {
final Bundle requiredBundle = requiredBundleWire.getProvider().getBundle();
if (requiredBundle != null) {
final int applyPolicy =
getApplyAspectsPolicy(requireHeaders, requiredBundle.getSymbolicName());
aspects = aspectAdmin.resolveRequiredBundle(requiredBundle, applyPolicy);
if (aspects != null) {
result.add(aspects);
fingerprintElements.add(
requiredBundle.getSymbolicName()
+ ":" //$NON-NLS-1$
+ requiredBundleWire.getProvider().getVersion().toString());
}
}
}
// imported packages
final List<BundleWire> importedPackages =
wiring.getRequiredWires(PackageNamespace.PACKAGE_NAMESPACE);
ManifestElement[] importHeaders = null;
if (!importedPackages.isEmpty()) {
try {
importHeaders =
ManifestElement.parseHeader(
Constants.IMPORT_PACKAGE,
bundle.getHeaders("").get(Constants.IMPORT_PACKAGE)); // $NON-NLS-1$
} catch (final BundleException e) {
}
}
for (final BundleWire importPackageWire : importedPackages) {
final Bundle exportingBundle = importPackageWire.getProvider().getBundle();
if (exportingBundle != null) {
final String importedPackage =
(String)
importPackageWire
.getCapability()
.getAttributes()
.get(PackageNamespace.PACKAGE_NAMESPACE);
final int applyPolicy = getApplyAspectsPolicy(importHeaders, importedPackage);
aspects =
aspectAdmin.resolveImportedPackage(exportingBundle, importedPackage, applyPolicy);
if (aspects != null) {
result.add(aspects);
final Object v =
importPackageWire
.getCapability()
.getAttributes()
.get(PackageNamespace.CAPABILITY_VERSION_ATTRIBUTE);
final String version = v == null ? Version.emptyVersion.toString() : v.toString();
fingerprintElements.add(
importedPackage
+ ":" //$NON-NLS-1$
+ version);
}
}
}
// supplementers
final Supplementer[] supplementers =
this.supplementerRegistry.getSupplementers(bundleRevision.getBundle().getBundleId());
for (int i = 0; i < supplementers.length; i++) {
aspects =
aspectAdmin.getExportedAspectDefinitions(supplementers[i].getSupplementerBundle());
if (aspects != null) {
result.add(aspects);
fingerprintElements.add(
supplementers[i].getSymbolicName()
+ ":" //$NON-NLS-1$
+ getBundleVersion(supplementers[i].getSupplementerBundle()));
}
}
// this bundle
aspects = aspectAdmin.getAspectDefinition(bundle);
if (aspects != null) {
final String finishedValue =
bundle
.getHeaders("")
.get( //$NON-NLS-1$
AspectAdmin.AOP_BUNDLE_FINISHED_HEADER);
if (finishedValue == null || !AspectAdmin.AOP_BUNDLE_FINISHED_VALUE.equals(finishedValue)) {
result.add(aspects);
fingerprintElements.add(
bundle.getSymbolicName()
+ ":" //$NON-NLS-1$
+ bundleRevision.getVersion().toString());
}
}
}
return result;
}
