Examples with ServiceListener org.osgi.framework.ServiceListener used on opensource projects

Example 11 with ServiceListener

use of org.osgi.framework.ServiceListener in project aries by apache.

the class Aries1428Test method testBundleNotPartOfSubsystemInstallationResolves.

@Test
public void testBundleNotPartOfSubsystemInstallationResolves() throws Exception {
    final Bundle core = getSubsystemCoreBundle();
    core.stop();
    bundleContext.addServiceListener(new ServiceListener() {

        @Override
        public void serviceChanged(ServiceEvent event) {
            if (event.getType() == ServiceEvent.REGISTERED) {
                File file = new File(BUNDLE_A);
                try {
                    Bundle bundleA = bundleContext.installBundle(file.toURI().toString(), new FileInputStream(file));
                    bundleA.start();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
    }, "(objectClass=org.osgi.service.subsystem.Subsystem)");
    core.start();
    assertBundleState(Bundle.RESOLVED | Bundle.ACTIVE, BUNDLE_A, getRootSubsystem());
}

Example 12 with ServiceListener

use of org.osgi.framework.ServiceListener in project aries by apache.

the class BundleEventHookTest method testIgnoreUninstalledBundleInAsyncInstalledEvent.

/*
     * Because bundle events are queued for later asynchronous processing while
     * the root subsystem is initializing, it is possible to see an installed
     * event for a bundle that has been uninstalled (i.e. the bundle revision
     * will be null). These events should be ignored.
     */
@Test
public void testIgnoreUninstalledBundleInAsyncInstalledEvent() throws Exception {
    final Bundle core = getSubsystemCoreBundle();
    core.stop();
    final AtomicReference<Bundle> a = new AtomicReference<Bundle>();
    bundleContext.addServiceListener(new ServiceListener() {

        @SuppressWarnings("unchecked")
        @Override
        public void serviceChanged(ServiceEvent event) {
            if ((event.getType() & (ServiceEvent.REGISTERED | ServiceEvent.MODIFIED)) == 0)
                return;
            if (a.get() != null)
                // We've been here before and already done what needs doing.
                return;
            ServiceReference sr = (ServiceReference) event.getServiceReference();
            bundleContext.getService(sr);
            try {
                // Queue up the installed event.
                a.set(core.getBundleContext().installBundle(BUNDLE_A, new FileInputStream(BUNDLE_A)));
                // Ensure the bundle will be uninstalled before the event is processed.
                a.get().uninstall();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }, "(&(objectClass=org.osgi.service.subsystem.Subsystem)(subsystem.id=0)(subsystem.state=RESOLVED))");
    try {
        // Before the fix, this would fail due to an NPE resulting from a
        // null bundle revision.
        core.start();
    } catch (BundleException e) {
        e.printStackTrace();
        fail("Subsystems failed to handle an asynchronous bundle installed event after the bundle was uninstalled");
    }
    assertBundleState(a.get(), Bundle.UNINSTALLED);
    Subsystem root = getRootSubsystem();
    assertState(Subsystem.State.ACTIVE, root);
    assertNotConstituent(root, a.get().getSymbolicName());
}

Example 13 with ServiceListener

use of org.osgi.framework.ServiceListener in project karaf by apache.

the class GuardProxyCatalogTest method testProxyCreationThread.

@SuppressWarnings({ "unchecked", "rawtypes" })
@Test
public void testProxyCreationThread() throws Exception {
    ProxyManager proxyManager = getProxyManager();
    ConfigurationAdmin ca = EasyMock.createMock(ConfigurationAdmin.class);
    EasyMock.expect(ca.listConfigurations(EasyMock.anyObject(String.class))).andReturn(null).anyTimes();
    EasyMock.replay(ca);
    ServiceReference pmSref = EasyMock.createMock(ServiceReference.class);
    EasyMock.replay(pmSref);
    ServiceReference pmSref2 = EasyMock.createMock(ServiceReference.class);
    EasyMock.replay(pmSref2);
    ServiceReference cmSref = EasyMock.createMock(ServiceReference.class);
    EasyMock.replay(cmSref);
    Bundle b = EasyMock.createMock(Bundle.class);
    EasyMock.expect(b.getBundleId()).andReturn(23992734L).anyTimes();
    EasyMock.replay(b);
    BundleContext bc = EasyMock.createNiceMock(BundleContext.class);
    EasyMock.expect(bc.getBundle()).andReturn(b).anyTimes();
    EasyMock.expect(bc.createFilter(EasyMock.isA(String.class))).andAnswer(() -> FrameworkUtil.createFilter((String) EasyMock.getCurrentArguments()[0])).anyTimes();
    final ServiceListener[] pmListenerHolder = new ServiceListener[1];
    String pmFilter = "(&(objectClass=" + ProxyManager.class.getName() + ")" + "(!(" + GuardProxyCatalog.PROXY_SERVICE_KEY + "=*)))";
    bc.addServiceListener(EasyMock.isA(ServiceListener.class), EasyMock.eq(pmFilter));
    EasyMock.expectLastCall().andAnswer(() -> {
        pmListenerHolder[0] = (ServiceListener) EasyMock.getCurrentArguments()[0];
        return null;
    }).anyTimes();
    EasyMock.expect(bc.getServiceReferences(EasyMock.anyObject(String.class), EasyMock.contains(ConfigurationAdmin.class.getName()))).andReturn(new ServiceReference[] { cmSref }).anyTimes();
    EasyMock.expect(bc.getService(pmSref)).andReturn(proxyManager).anyTimes();
    EasyMock.expect(bc.getService(pmSref2)).andReturn(proxyManager).anyTimes();
    EasyMock.expect(bc.getService(cmSref)).andReturn(ca).anyTimes();
    EasyMock.replay(bc);
    // This should put a ServiceListener in the pmListenerHolder, the ServiceTracker does that
    GuardProxyCatalog gpc = new GuardProxyCatalog(bc);
    // The service being proxied has these properties
    final Hashtable<String, Object> serviceProps = new Hashtable<>();
    serviceProps.put(Constants.OBJECTCLASS, new String[] { TestServiceAPI.class.getName() });
    serviceProps.put(Constants.SERVICE_ID, 162L);
    final Map<ServiceReference<?>, Object> serviceMap = new HashMap<>();
    // The mock bundle context for the bundle providing the service is set up here
    BundleContext providerBC = EasyMock.createMock(BundleContext.class);
    // These are the expected service properties of the proxy registration. Note the proxy marker...
    final Hashtable<String, Object> expectedProxyProps = new Hashtable<>(serviceProps);
    expectedProxyProps.put(GuardProxyCatalog.PROXY_SERVICE_KEY, Boolean.TRUE);
    EasyMock.expect(providerBC.registerService(EasyMock.isA(String[].class), EasyMock.anyObject(), EasyMock.isA(Dictionary.class))).andAnswer((IAnswer) () -> {
        Dictionary<String, Object> props = (Dictionary<String, Object>) EasyMock.getCurrentArguments()[2];
        ServiceRegistration reg = EasyMock.createMock(ServiceRegistration.class);
        ServiceReference sr = mockServiceReference(props);
        EasyMock.expect(reg.getReference()).andReturn(sr).anyTimes();
        reg.unregister();
        EasyMock.expectLastCall().once();
        EasyMock.replay(reg);
        serviceMap.put(sr, EasyMock.getCurrentArguments()[1]);
        return reg;
    }).once();
    EasyMock.expect(providerBC.getService(EasyMock.isA(ServiceReference.class))).andAnswer(() -> serviceMap.get(EasyMock.getCurrentArguments()[0])).anyTimes();
    EasyMock.replay(providerBC);
    // In some cases the proxy-creating code is looking for a classloader (e.g. when run through
    // a coverage tool such as EclEmma). This will satisfy that.
    BundleWiring bw = EasyMock.createMock(BundleWiring.class);
    EasyMock.expect(bw.getClassLoader()).andReturn(getClass().getClassLoader()).anyTimes();
    EasyMock.replay(bw);
    // The mock bundle that provides the original service (and also the proxy is registered with this)
    Bundle providerBundle = EasyMock.createNiceMock(Bundle.class);
    EasyMock.expect(providerBundle.getBundleContext()).andReturn(providerBC).anyTimes();
    EasyMock.expect(providerBundle.adapt(BundleWiring.class)).andReturn(bw).anyTimes();
    EasyMock.replay(providerBundle);
    ServiceReference sr = mockServiceReference(providerBundle, serviceProps);
    assertEquals("Precondition", 0, gpc.proxyMap.size());
    assertEquals("Precondition", 0, gpc.createProxyQueue.size());
    // Create the proxy for the service
    gpc.proxyIfNotAlreadyProxied(sr);
    assertEquals(1, gpc.proxyMap.size());
    assertEquals(1, gpc.createProxyQueue.size());
    // The actual proxy creation is done asynchronously.
    GuardProxyCatalog.ServiceRegistrationHolder holder = gpc.proxyMap.get(162L);
    assertNull("The registration shouldn't have happened yet", holder.registration);
    assertEquals(1, gpc.createProxyQueue.size());
    Thread[] tarray = new Thread[Thread.activeCount()];
    Thread.enumerate(tarray);
    for (Thread t : tarray) {
        if (t != null) {
            assertTrue(!GuardProxyCatalog.PROXY_CREATOR_THREAD_NAME.equals(t.getName()));
        }
    }
    // make the proxy manager appear
    pmListenerHolder[0].serviceChanged(new ServiceEvent(ServiceEvent.REGISTERED, pmSref));
    // give the system some time to send the events...
    Thread.sleep(400);
    Thread ourThread = null;
    Thread[] tarray2 = new Thread[Thread.activeCount()];
    Thread.enumerate(tarray2);
    for (Thread t : tarray2) {
        if (t != null) {
            if (t.getName().equals(GuardProxyCatalog.PROXY_CREATOR_THREAD_NAME)) {
                ourThread = t;
            }
        }
    }
    assertNotNull(ourThread);
    assertTrue(ourThread.isDaemon());
    assertTrue(ourThread.isAlive());
    assertNotNull(holder.registration);
    assertEquals(0, gpc.createProxyQueue.size());
    int numProxyThreads = 0;
    pmListenerHolder[0].serviceChanged(new ServiceEvent(ServiceEvent.REGISTERED, pmSref2));
    // give the system some time to send the events...
    Thread.sleep(300);
    Thread[] tarray3 = new Thread[Thread.activeCount()];
    Thread.enumerate(tarray3);
    for (Thread t : tarray3) {
        if (t != null) {
            if (t.getName().equals(GuardProxyCatalog.PROXY_CREATOR_THREAD_NAME)) {
                numProxyThreads++;
            }
        }
    }
    assertEquals("Maximum 1 proxy thread, even if there is more than 1 proxy service", 1, numProxyThreads);
    // Clean up thread
    pmListenerHolder[0].serviceChanged(new ServiceEvent(ServiceEvent.UNREGISTERING, pmSref));
    // Give the system some time to stop the threads...
    Thread.sleep(300);
    Thread[] tarray4 = new Thread[Thread.activeCount()];
    Thread.enumerate(tarray4);
    for (Thread t : tarray4) {
        if (t != null) {
            assertTrue(!GuardProxyCatalog.PROXY_CREATOR_THREAD_NAME.equals(t.getName()));
        }
    }
}

Example 14 with ServiceListener

use of org.osgi.framework.ServiceListener in project aries by apache.

the class TransactionLogTest method doRecoveryRequired.

public void doRecoveryRequired(BiConsumer<XAResource, XAResource> ordering, TransactionStatus expectedFinalState) throws Exception {
    //Register the recoverable resource
    ArgumentCaptor<ServiceListener> captor = ArgumentCaptor.forClass(ServiceListener.class);
    Mockito.verify(ctx).addServiceListener(captor.capture(), Mockito.anyString());
    Mockito.when(ctx.getService(serviceRef)).thenReturn(new TestRecoverableResource("foo", dataSource));
    captor.getValue().serviceChanged(new ServiceEvent(ServiceEvent.REGISTERED, serviceRef));
    XAConnection xaConn = dataSource.getXAConnection();
    AtomicReference<TransactionStatus> ref = new AtomicReference<TransactionStatus>();
    try {
        txControl.required(() -> {
            txControl.getCurrentContext().postCompletion(ref::set);
            Connection conn = xaConn.getConnection();
            // conn.setAutoCommit(false);
            XAResource dsResource = xaConn.getXAResource();
            XAResource poison = Mockito.mock(XAResource.class);
            Mockito.when(poison.prepare(Mockito.any())).thenAnswer(i -> {
                conn.createStatement().execute("shutdown immediately");
                Thread.sleep(1000);
                return XA_OK;
            });
            ordering.accept(dsResource, poison);
            return conn.createStatement().execute("Insert into TEST_TABLE values ( 'Hello World!' )");
        });
    } catch (TransactionException te) {
        assertEquals(expectedFinalState, ref.get());
        assertEquals(expectedFinalState == ROLLED_BACK, te instanceof TransactionRolledBackException);
    } finally {
        try {
            xaConn.close();
        } catch (SQLException sqle) {
        }
    }
    setupServerAndDataSource();
}

Example 15 with ServiceListener

use of org.osgi.framework.ServiceListener in project felix by apache.

the class Felix method addServiceListener.

/**
 * Implementation for BundleContext.addServiceListener().
 * Adds service listener to the listener list so that is
 * can listen for <code>ServiceEvent</code>s.
 *
 * @param bundle The bundle that registered the listener.
 * @param l The service listener to add to the listener list.
 * @param f The filter for the listener; may be null.
 */
void addServiceListener(BundleImpl bundle, ServiceListener l, String f) throws InvalidSyntaxException {
    Filter oldFilter;
    Filter newFilter = (f == null) ? null : FrameworkUtil.createFilter(f);
    oldFilter = m_dispatcher.addListener(bundle._getBundleContext(), ServiceListener.class, l, newFilter);
    // Invoke ListenerHook.removed() if filter updated.
    Set<ServiceReference<org.osgi.framework.hooks.service.ListenerHook>> listenerHooks = getHookRegistry().getHooks(org.osgi.framework.hooks.service.ListenerHook.class);
    if (oldFilter != null) {
        final Collection removed = Collections.singleton(new ListenerInfo(bundle, bundle._getBundleContext(), ServiceListener.class, l, oldFilter, null, true));
        for (ServiceReference<org.osgi.framework.hooks.service.ListenerHook> sr : listenerHooks) {
            org.osgi.framework.hooks.service.ListenerHook lh = getService(this, sr, false);
            if (lh != null) {
                try {
                    m_secureAction.invokeServiceListenerHookRemoved(lh, removed);
                } catch (Throwable th) {
                    m_logger.log(sr, Logger.LOG_WARNING, "Problem invoking service registry hook", th);
                } finally {
                    m_registry.ungetService(this, sr, null);
                }
            }
        }
    }
    // Invoke the ListenerHook.added() on all hooks.
    final Collection added = Collections.singleton(new ListenerInfo(bundle, bundle._getBundleContext(), ServiceListener.class, l, newFilter, null, false));
    for (ServiceReference<org.osgi.framework.hooks.service.ListenerHook> sr : listenerHooks) {
        org.osgi.framework.hooks.service.ListenerHook lh = getService(this, sr, false);
        if (lh != null) {
            try {
                m_secureAction.invokeServiceListenerHookAdded(lh, added);
            } catch (Throwable th) {
                m_logger.log(sr, Logger.LOG_WARNING, "Problem invoking service registry hook", th);
            } finally {
                m_registry.ungetService(this, sr, null);
            }
        }
    }
}