private List /* <Configuration> */ getConfigurations(
String filterString, String callingBundleLocation, boolean checkLocation)
throws IOException, InvalidSyntaxException {
Filter filter = (filterString != null) ? context.createFilter(filterString) : null;
Iterator /* <String> */ pids = configurationDictionaryManager.listPids();
List /* <Configuration> */ matchingConfigurations = new ArrayList();
while (pids.hasNext()) {
String pid = (String) pids.next();
ConfigurationDictionary config = configurationDictionaryManager.load(pid);
if (filter == null) {
matchingConfigurations.add(new ConfigurationImpl(this, config));
} else {
if (filter.matchCase(config.toSearchableProperties())) {
if (!checkLocation) {
matchingConfigurations.add(new ConfigurationImpl(this, config));
} else {
if (callingBundleLocation.equals(config.getLocation())) {
matchingConfigurations.add(new ConfigurationImpl(this, config));
}
}
}
}
}
return matchingConfigurations;
}
/**
* Internal implies method. Used by the implies and the permission collection implies methods.
*
* @param requested The requested SubsystemPermision which has already been validated as a proper
* argument. The requested SubsystemPermission must not have a filter expression.
* @param effective The effective actions with which to start.
* @return {@code true} if the specified permission is implied by this object; {@code false}
* otherwise.
*/
boolean implies0(SubsystemPermission requested, int effective) {
/* check actions first - much faster */
effective |= action_mask;
final int desired = requested.action_mask;
if ((effective & desired) != desired) {
return false;
}
/* Get our filter */
Filter f = filter;
if (f == null) {
// it's "*"
return true;
}
/* is requested a wildcard filter? */
if (requested.subsystem == null) {
return false;
}
Map<String, Object> requestedProperties = requested.getProperties();
if (requestedProperties == null) {
/*
* If the requested properties are null, then we have detected a
* recursion getting the subsystem location. So we return true to
* permit the subsystem location request in the SubsystemPermission
* check up the stack to succeed.
*/
return true;
}
return f.matches(requestedProperties);
}
/**
* Checks if the specified {@code permission} is implied by this permission. The method returns
* true under the following conditions:
*
* <UL>
* <LI>This permission was created by specifying a filter (see {@link
* #ApplicationAdminPermission(String, String)})
* <LI>The implied {@code otherPermission} was created for a particular {@link
* ApplicationDescriptor} (see {@link #ApplicationAdminPermission(ApplicationDescriptor,
* String)})
* <LI>The {@code filter} of this permission mathes the {@code ApplicationDescriptor} specified
* in the {@code otherPermission}. If the filter in this permission is the {@code
* <<SELF>>} pseudo target, then the currentApplicationId set in the {@code
* otherPermission} is compared to the application Id of the target {@code
* ApplicationDescriptor}.
* <LI>The list of permitted actions in this permission contains all actions required in the
* {@code otherPermission}
* </UL>
*
* Otherwise the method returns false.
*
* @param otherPermission the implied permission
* @return true if this permission implies the {@code otherPermission}, false otherwise.
*/
public boolean implies(Permission otherPermission) {
if (otherPermission == null) return false;
if (!(otherPermission instanceof ApplicationAdminPermission)) return false;
ApplicationAdminPermission other = (ApplicationAdminPermission) otherPermission;
if (!filter.equals("*")) {
if (other.applicationDescriptor == null) return false;
if (filter.equals("<<SELF>>")) {
if (other.applicationID == null) return false; /* it cannot be, this might be a bug */
if (!other.applicationID.equals(other.applicationDescriptor.getApplicationId()))
return false;
} else {
Hashtable props = new Hashtable();
props.put("pid", other.applicationDescriptor.getApplicationId());
props.put("signer", new SignerWrapper(other.applicationDescriptor));
Filter flt = getFilter();
if (flt == null) return false;
if (!flt.match(props)) return false;
}
}
if (!actionsVector.containsAll(other.actionsVector)) return false;
return true;
}
private NetworkChannelFactory getNetworkChannelFactory(final String protocol)
throws RemoteOSGiException {
try {
final Filter filter =
RemoteOSGiActivator.getActivator()
.getContext()
.createFilter(
"(" //$NON-NLS-1$
+ NetworkChannelFactory.PROTOCOL_PROPERTY
+ "="
+ protocol //$NON-NLS-1$
+ ")"); //$NON-NLS-1$
final ServiceReference[] refs = networkChannelFactoryTracker.getServiceReferences();
if (refs != null) {
for (int i = 0; i < refs.length; i++) {
if (filter.match(refs[i])) {
return (NetworkChannelFactory) networkChannelFactoryTracker.getService(refs[i]);
}
}
}
throw new RemoteOSGiException(
"No NetworkChannelFactory for " //$NON-NLS-1$
+ protocol
+ " found."); //$NON-NLS-1$
} catch (final InvalidSyntaxException e) {
// does not happen
e.printStackTrace();
return null;
}
}
public void serviceChanged(ServiceEvent serviceEvent) {
int serviceEventType = serviceEvent.getType();
switch (serviceEventType) {
case ServiceEvent.REGISTERED:
{
ServiceReference serviceReference = serviceEvent.getServiceReference();
Filter filter = (Filter) serviceReference.getProperty(UPnPEventListener.UPNP_FILTER);
if (filter == null) {
addNewListener(serviceReference);
} else if (filter.match(properties)) {
addNewListener(serviceReference);
}
}
;
break;
case ServiceEvent.MODIFIED:
{
}
;
break;
case ServiceEvent.UNREGISTERING:
{
removeListener(serviceEvent.getServiceReference());
}
;
break;
}
}
private void createNotifier(String deviceId) {
ServiceReference[] serviceListeners = null;
ServiceReference serviceReference = null;
Filter filter = null;
String eventListenerFilter =
"(" + Constants.OBJECTCLASS + "=" + UPnPEventListener.class.getName() + ")";
properties = new Properties();
properties.put(UPnPDevice.ID, deviceId);
properties.put(UPnPService.ID, serviceId);
try {
serviceListeners = context.getServiceReferences(UPnPEventListener.class.getName(), null);
if (serviceListeners != null && serviceListeners.length > 0) {
for (int i = 0; i < serviceListeners.length; i++) {
serviceReference = serviceListeners[i];
filter = (Filter) serviceReference.getProperty(UPnPEventListener.UPNP_FILTER);
if (filter == null) {
eventListeners.add(serviceReference);
} else if (filter.match(properties)) {
addNewListener(serviceReference);
}
}
}
} catch (Exception e) {
}
try {
String filterString = eventListenerFilter;
context.addServiceListener(this, filterString);
} catch (Exception e) {
}
}
/**
* @param ref
* @param event
*/
private static void match(final ServiceReference ref, final RemoteServiceEvent event) {
final Filter filter = (Filter) ref.getProperty(RemoteServiceListener.FILTER);
if (filter == null
|| filter.match(
((RemoteServiceReferenceImpl) event.getRemoteReference()).getProperties())) {
final RemoteServiceListener listener =
(RemoteServiceListener) remoteServiceListenerTracker.getService(ref);
if (listener != null) {
listener.remoteServiceEvent(event);
}
}
}
private String getFilterString(Filter baseFilter) {
if (baseFilter != null) {
return baseFilter.toString();
} else {
return null;
}
}
@Override
public Object getService(Filter filter, long timeout) throws OsgiServiceNotAvailableException {
ServiceTracker t = new ServiceTracker(bundleContext, filter, null);
LOGGER.debug("getting service for filter {} from tracker", filter);
Object result = waitForServiceFromTracker(t, timeout);
if (result == null) {
throw new OsgiServiceNotAvailableException(
String.format(
"no service matching filter \"%s\" available at the time", filter.toString()));
}
t.close();
return result;
}
/**
* Determines the equality of two {@code SubsystemPermission} objects.
*
* @param obj The object being compared for equality with this object.
* @return {@code true} if {@code obj} is equivalent to this {@code SubsystemPermission}; {@code
* false} otherwise.
*/
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (!(obj instanceof SubsystemPermission)) {
return false;
}
SubsystemPermission sp = (SubsystemPermission) obj;
return (action_mask == sp.action_mask)
&& ((subsystem == sp.subsystem) || ((subsystem != null) && subsystem.equals(sp.subsystem)))
&& (filter == null ? sp.filter == null : filter.equals(sp.filter));
}
public List<ServiceState> getServiceReferencesInternal(
AbstractBundle bundleState, String clazz, Filter filter, boolean checkAssignable) {
if (bundleState == null) throw new IllegalArgumentException("Null bundleState");
List<ServiceName> serviceNames;
if (clazz != null) {
serviceNames = serviceNameMap.get(clazz);
if (serviceNames == null) serviceNames = new ArrayList<ServiceName>();
// Add potentially registered xservcie
ServiceName xserviceName = ServiceName.of(ModuleContext.XSERVICE_PREFIX, clazz);
ServiceController<?> xservice = serviceContainer.getService(xserviceName);
if (xservice != null) serviceNames.add(xserviceName);
} else {
// [MSC-9] Add ability to query the ServiceContainer
Set<ServiceName> allServiceNames = new HashSet<ServiceName>();
for (List<ServiceName> auxList : serviceNameMap.values()) allServiceNames.addAll(auxList);
serviceNames = new ArrayList<ServiceName>(allServiceNames);
}
if (serviceNames.isEmpty()) return Collections.emptyList();
if (filter == null) filter = NoFilter.INSTANCE;
List<ServiceState> result = new ArrayList<ServiceState>();
for (ServiceName serviceName : serviceNames) {
ServiceController<?> controller = serviceContainer.getService(serviceName);
if (controller == null)
throw new IllegalStateException("Cannot obtain service for: " + serviceName);
Object value = controller.getValue();
// Create the ServiceState on demand for an XService instance
// [TODO] This should be done eagerly to keep the serviceId constant
// [TODO] service events for XService lifecycle changes
// [MSC-17] Canonical ServiceName string representation
if (value instanceof ServiceState == false
&& serviceName.toString().contains(ModuleContext.XSERVICE_PREFIX)) {
long serviceId = getNextServiceId();
Bundle bundle = packageAdmin.getBundle(value.getClass());
AbstractBundle owner = AbstractBundle.assertBundleState(bundle);
value =
new ServiceState(
owner,
serviceId,
new ServiceName[] {serviceName},
new String[] {clazz},
value,
null);
}
ServiceState serviceState = (ServiceState) value;
if (filter.match(serviceState) == false) continue;
Object rawValue = serviceState.getRawValue();
checkAssignable &= (clazz != null);
checkAssignable &= (bundleState.getBundleId() != 0);
checkAssignable &= !(rawValue instanceof ServiceFactory);
if (checkAssignable == false || serviceState.isAssignableTo(bundleState, clazz)) {
result.add(serviceState);
}
}
// Sort the result
Collections.sort(result, ServiceReferenceComparator.getInstance());
Collections.reverse(result);
return Collections.unmodifiableList(result);
}
/**
* Package private constructor used by SubsystemPermissionCollection.
*
* @param filter name filter or {@code null} for wildcard.
* @param mask action mask
*/
SubsystemPermission(Filter filter, int mask) {
super((filter == null) ? "*" : filter.toString());
setTransients(filter, mask);
this.subsystem = null;
}
protected ServiceTrackerInvocationHandler(Filter filter) {
this.tracker = new ServiceTracker(bundleContext, filter, null);
this.info = filter.toString();
}
@Override
protected boolean matches(final ServiceReference<S> capability, final Filter filter) {
return (filter == null) || filter.match(capability);
}
/**
* Adds a service listener to the given bundle context under the specified filter. This method
* will deliver <em>synthetic</em> events of type <code>REGISTERED</code> for <em>all</em>
* existing services (that match the given filter) as if the services were registered after the
* listener registration.
*
* <p>This might cause problems if a service is registered between the listener registration and
* the retrieval of existing services since the listener will receive two events for the same
* service. For most listeners implementations however, this should not be a problem
*
* @param context bundle context to register the listener with
* @param listener service listener to be registered
* @param filter OSGi filter (given as a Filter) for registering the listener (can be <code>null
* </code>)
* @see #addServiceListener(BundleContext, ServiceListener, String)
*/
public static void addServiceListener(
BundleContext context, ServiceListener listener, Filter filter) {
String toStringFilter = (filter == null ? null : filter.toString());
addServiceListener(context, listener, toStringFilter);
}
