*/
package org.opendaylight.protocol.bgp.rib.impl;
-import static org.mockito.Matchers.any;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.doCallRealMethod;
+import static org.mockito.Mockito.doNothing;
import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.mock;
-import com.google.common.base.Optional;
-import com.google.common.base.Throwables;
-import com.google.common.util.concurrent.CheckedFuture;
+import com.google.common.collect.ImmutableClassToInstanceMap;
+import com.google.common.util.concurrent.FluentFuture;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
-import java.util.HashMap;
+import java.util.EventListener;
import java.util.HashSet;
import java.util.List;
-import java.util.Map;
+import java.util.Optional;
import java.util.concurrent.Executor;
-import javassist.ClassPool;
-import org.junit.After;
import org.junit.Before;
import org.mockito.Mock;
-import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;
-import org.opendaylight.controller.md.sal.binding.api.BindingTransactionChain;
-import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
-import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
-import org.opendaylight.controller.md.sal.dom.api.ClusteredDOMDataTreeChangeListener;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataBrokerExtension;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeService;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeIdentifier;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
-import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
-import org.opendaylight.mdsal.binding.dom.codec.api.BindingCodecTreeFactory;
-import org.opendaylight.mdsal.binding.generator.api.ClassLoadingStrategy;
-import org.opendaylight.mdsal.binding.generator.impl.GeneratedClassLoadingStrategy;
-import org.opendaylight.mdsal.binding.generator.impl.ModuleInfoBackedContext;
-import org.opendaylight.mdsal.binding.generator.util.BindingRuntimeContext;
-import org.opendaylight.mdsal.binding.generator.util.JavassistUtils;
+import org.opendaylight.mdsal.binding.api.ReadTransaction;
+import org.opendaylight.mdsal.binding.api.TransactionChain;
+import org.opendaylight.mdsal.binding.api.WriteTransaction;
+import org.opendaylight.mdsal.binding.dom.adapter.CurrentAdapterSerializer;
+import org.opendaylight.mdsal.common.api.CommitInfo;
+import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
+import org.opendaylight.mdsal.dom.api.ClusteredDOMDataTreeChangeListener;
+import org.opendaylight.mdsal.dom.api.DOMDataBroker;
+import org.opendaylight.mdsal.dom.api.DOMDataTreeChangeService;
+import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
+import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteTransaction;
+import org.opendaylight.mdsal.dom.api.DOMTransactionChain;
+import org.opendaylight.mdsal.dom.api.DOMTransactionChainListener;
import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonService;
import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceRegistration;
import org.opendaylight.protocol.bgp.parser.BgpTableTypeImpl;
import org.opendaylight.protocol.bgp.rib.impl.spi.BGPDispatcher;
import org.opendaylight.protocol.bgp.rib.spi.RIBExtensionProviderContext;
-import org.opendaylight.protocol.bgp.rib.spi.RIBSupport;
import org.opendaylight.protocol.bgp.rib.spi.SimpleRIBExtensionProviderContext;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.AsNumber;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.routes.ipv4.routes.Ipv4Route;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.BgpTableType;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.BgpRib;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.RibId;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.bgp.rib.Rib;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.TablesKey;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.AddressFamily;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.BgpId;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.ClusterIdentifier;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv4AddressFamily;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.SubsequentAddressFamily;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.UnicastSubsequentAddressFamily;
-import org.opendaylight.yangtools.binding.data.codec.gen.impl.DataObjectSerializerGenerator;
-import org.opendaylight.yangtools.binding.data.codec.gen.impl.StreamWriterGenerator;
-import org.opendaylight.yangtools.binding.data.codec.impl.BindingNormalizedNodeCodecRegistry;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv4.routes.ipv4.routes.Ipv4Route;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.BgpTableType;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.BgpRib;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.RibId;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.TablesKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.AddressFamily;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.BgpId;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.Ipv4AddressFamily;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.Ipv6AddressFamily;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.SubsequentAddressFamily;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.UnicastSubsequentAddressFamily;
import org.opendaylight.yangtools.concepts.ListenerRegistration;
+import org.opendaylight.yangtools.util.concurrent.FluentFutures;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.opendaylight.yangtools.yang.binding.util.BindingReflections;
import org.opendaylight.yangtools.yang.common.QName;
+import org.opendaylight.yangtools.yang.common.Uint32;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeBuilder;
-import org.opendaylight.yangtools.yang.model.api.SchemaContext;
-public class AbstractRIBTestSetup {
+public class AbstractRIBTestSetup extends DefaultRibPoliciesMockTest {
- private RIBImpl rib;
- private static final ClusterIdentifier CLUSTER_ID = new ClusterIdentifier("128.0.0.1");
+ static final Class<? extends AddressFamily> IPV4_AFI = Ipv4AddressFamily.class;
+ private static final Class<? extends AddressFamily> IPV6_AFI = Ipv6AddressFamily.class;
+ static final Class<? extends SubsequentAddressFamily> SAFI = UnicastSubsequentAddressFamily.class;
+ static final TablesKey KEY = new TablesKey(IPV4_AFI, SAFI);
+ static final QName PREFIX_QNAME = QName.create(Ipv4Route.QNAME, "prefix").intern();
private static final BgpId RIB_ID = new BgpId("127.0.0.1");
- protected static final Class<? extends AddressFamily> AFI = Ipv4AddressFamily.class;
- protected static final Class<? extends SubsequentAddressFamily> SAFI = UnicastSubsequentAddressFamily.class;
- protected static final QName AFI_QNAME = BindingReflections.findQName(AFI).intern();
- protected static final QName SAFI_QNAME = BindingReflections.findQName(SAFI).intern();
- protected static final TablesKey KEY = new TablesKey(AFI, SAFI);
- private BindingCodecTreeFactory codecFactory;
- private RIBActivator a1;
- private RIBSupport ribSupport;
- protected static final QName PREFIX_QNAME = QName.create(Ipv4Route.QNAME, "prefix").intern();
-
+ private RIBImpl rib;
+ private final RIBActivator a1 = new RIBActivator();
@Mock
private BGPDispatcher dispatcher;
private DOMDataBroker dom;
@Mock
- private BindingTransactionChain chain;
+ private TransactionChain chain;
@Mock
private WriteTransaction transWrite;
private DOMTransactionChain domChain;
@Mock
- private DOMDataWriteTransaction domTransWrite;
-
- @Mock
- private CheckedFuture<?,?> future;
+ private DOMDataTreeWriteTransaction domTransWrite;
@Mock
- private Optional<Rib> o;
+ private FluentFuture<? extends CommitInfo> future;
@Mock
private DOMDataTreeChangeService service;
@Mock
private ClusterSingletonServiceProvider clusterSingletonServiceProvider;
+ @Override
@Before
public void setUp() throws Exception {
+ super.setUp();
mockRib();
}
public void mockRib() throws Exception {
final RIBExtensionProviderContext context = new SimpleRIBExtensionProviderContext();
- final ModuleInfoBackedContext strategy = createClassLoadingStrategy();
- final SchemaContext schemaContext = strategy.tryToCreateSchemaContext().get();
- this.codecFactory = createCodecFactory(strategy,schemaContext);
final List<BgpTableType> localTables = new ArrayList<>();
- localTables.add(new BgpTableTypeImpl(AFI, SAFI));
+ localTables.add(new BgpTableTypeImpl(IPV4_AFI, SAFI));
+ localTables.add(new BgpTableTypeImpl(IPV6_AFI, SAFI));
- this.a1 = new RIBActivator();
- this.a1.startRIBExtensionProvider(context);
- mockedMethods();
- doReturn(Mockito.mock(ClusterSingletonServiceRegistration.class)).when(this.clusterSingletonServiceProvider)
- .registerClusterSingletonService(any(ClusterSingletonService.class));
- this.rib = new RIBImpl(this.clusterSingletonServiceProvider, new RibId("test"), new AsNumber(5L), RIB_ID, CLUSTER_ID, context,
- this.dispatcher, this.codecFactory, this.dom, localTables, Collections.singletonMap(new TablesKey(AFI, SAFI),
- BasePathSelectionModeFactory.createBestPathSelectionStrategy()), GeneratedClassLoadingStrategy.getTCCLClassLoadingStrategy(), null);
- this.rib.onGlobalContextUpdated(schemaContext);
- this.ribSupport = getRib().getRibSupportContext().getRIBSupportContext(KEY).getRibSupport();
- }
+ final CurrentAdapterSerializer serializer = mappingService.currentSerializer();
+ this.a1.startRIBExtensionProvider(context, serializer);
- private static ModuleInfoBackedContext createClassLoadingStrategy() {
- final ModuleInfoBackedContext ctx = ModuleInfoBackedContext.create();
- try {
- ctx.registerModuleInfo(BindingReflections.getModuleInfo(Ipv4Route.class));
- } catch (final Exception e) {
- throw Throwables.propagate(e);
- }
- return ctx;
- }
-
- private static BindingCodecTreeFactory createCodecFactory(final ClassLoadingStrategy str, final SchemaContext ctx) {
- final DataObjectSerializerGenerator generator = StreamWriterGenerator.create(JavassistUtils.forClassPool(ClassPool.getDefault()));
- final BindingNormalizedNodeCodecRegistry codec = new BindingNormalizedNodeCodecRegistry(generator);
- codec.onBindingRuntimeContextUpdated(BindingRuntimeContext.create(str, ctx));
- return codec;
+ mockedMethods();
+ doReturn(mock(ClusterSingletonServiceRegistration.class)).when(this.clusterSingletonServiceProvider)
+ .registerClusterSingletonService(any(ClusterSingletonService.class));
+ this.rib = new RIBImpl(this.tableRegistry, new RibId("test"), new AsNumber(Uint32.valueOf(5)), RIB_ID, context,
+ this.dispatcher, new ConstantCodecsRegistry(serializer), this.dom, getDataBroker(), this.policies,
+ localTables, Collections.singletonMap(KEY,
+ BasePathSelectionModeFactory.createBestPathSelectionStrategy()));
}
@SuppressWarnings("unchecked")
private void mockedMethods() throws Exception {
MockitoAnnotations.initMocks(this);
- final ReadOnlyTransaction readTx = Mockito.mock(ReadOnlyTransaction.class);
- Mockito.doReturn(new listenerRegistration()).when(this.service).registerDataTreeChangeListener(Mockito.any(DOMDataTreeIdentifier.class), Mockito.any(ClusteredDOMDataTreeChangeListener.class));
- final Map<Class<? extends DOMDataBrokerExtension>, DOMDataBrokerExtension> map = new HashMap<>();
- map.put(DOMDataTreeChangeService.class, this.service);
- Mockito.doNothing().when(readTx).close();
- final CheckedFuture<Optional<DataObject>, ReadFailedException> readFuture = Mockito.mock(CheckedFuture.class);
- Mockito.doNothing().when(this.domTransWrite).put(Mockito.eq(LogicalDatastoreType.OPERATIONAL), Mockito.any(YangInstanceIdentifier.class), Mockito.any(NormalizedNode.class));
- Mockito.doNothing().when(this.domTransWrite).delete(Mockito.eq(LogicalDatastoreType.OPERATIONAL), Mockito.any(YangInstanceIdentifier.class));
- Mockito.doNothing().when(this.domTransWrite).merge(Mockito.eq(LogicalDatastoreType.OPERATIONAL), Mockito.any(YangInstanceIdentifier.class), Mockito.any(NormalizedNode.class));
- Mockito.doReturn(Optional.<DataObject>absent()).when(readFuture).checkedGet();
- Mockito.doReturn(readFuture).when(readTx).read(Mockito.eq(LogicalDatastoreType.OPERATIONAL), Mockito.any(InstanceIdentifier.class));
- Mockito.doNothing().when(this.domChain).close();
- Mockito.doReturn(this.domTransWrite).when(this.domChain).newWriteOnlyTransaction();
- Mockito.doNothing().when(getTransaction()).put(Mockito.eq(LogicalDatastoreType.OPERATIONAL), Mockito.eq(YangInstanceIdentifier.of(BgpRib.QNAME)), Mockito.any(NormalizedNode.class));
- Mockito.doReturn(map).when(this.dom).getSupportedExtensions();
- Mockito.doReturn(this.domChain).when(this.dom).createTransactionChain(Mockito.any(BGPPeer.class));
- Mockito.doReturn(this.transWrite).when(this.chain).newWriteOnlyTransaction();
- Mockito.doReturn(false).when(this.o).isPresent();
- Mockito.doReturn(this.o).when(this.future).checkedGet();
- Mockito.doReturn(this.future).when(this.domTransWrite).submit();
- Mockito.doNothing().when(this.future).addListener(Mockito.any(Runnable.class), Mockito.any(Executor.class));
- Mockito.doNothing().when(this.transWrite).put(Mockito.eq(LogicalDatastoreType.OPERATIONAL), Mockito.any(InstanceIdentifier.class), Mockito.any(DataObject.class), Mockito.eq(true));
- Mockito.doNothing().when(this.transWrite).put(Mockito.eq(LogicalDatastoreType.OPERATIONAL), Mockito.any(InstanceIdentifier.class), Mockito.any(DataObject.class));
- Mockito.doReturn(this.future).when(this.transWrite).submit();
+ final ReadTransaction readTx = mock(ReadTransaction.class);
+ doReturn(new TestListenerRegistration()).when(this.service)
+ .registerDataTreeChangeListener(any(DOMDataTreeIdentifier.class),
+ any(ClusteredDOMDataTreeChangeListener.class));
+ doNothing().when(readTx).close();
+ doNothing().when(this.domTransWrite).put(eq(LogicalDatastoreType.OPERATIONAL),
+ any(YangInstanceIdentifier.class), any(NormalizedNode.class));
+ doNothing().when(this.domTransWrite).delete(eq(LogicalDatastoreType.OPERATIONAL),
+ any(YangInstanceIdentifier.class));
+ doNothing().when(this.domTransWrite).merge(eq(LogicalDatastoreType.OPERATIONAL),
+ any(YangInstanceIdentifier.class), any(NormalizedNode.class));
+ doReturn(FluentFutures.immediateFluentFuture(Optional.empty())).when(readTx)
+ .read(eq(LogicalDatastoreType.OPERATIONAL), any(InstanceIdentifier.class));
+ doNothing().when(this.domChain).close();
+ doReturn(this.domTransWrite).when(this.domChain).newWriteOnlyTransaction();
+ doNothing().when(getTransaction()).put(eq(LogicalDatastoreType.OPERATIONAL),
+ eq(YangInstanceIdentifier.of(BgpRib.QNAME)), any(NormalizedNode.class));
+ doReturn(ImmutableClassToInstanceMap.of(DOMDataTreeChangeService.class, this.service)).when(this.dom)
+ .getExtensions();
+ doReturn(this.domChain).when(this.dom).createMergingTransactionChain(any(DOMTransactionChainListener.class));
+ doReturn(this.transWrite).when(this.chain).newWriteOnlyTransaction();
+ doReturn(Optional.empty()).when(this.future).get();
+ doReturn(this.future).when(this.domTransWrite).commit();
+ doNothing().when(this.future).addListener(any(Runnable.class), any(Executor.class));
+ doNothing().when(this.transWrite).mergeParentStructurePut(eq(LogicalDatastoreType.OPERATIONAL),
+ any(InstanceIdentifier.class), any(DataObject.class));
+ doNothing().when(this.transWrite).put(eq(LogicalDatastoreType.OPERATIONAL),
+ any(InstanceIdentifier.class), any(DataObject.class));
+ doReturn(this.future).when(this.transWrite).commit();
}
- public Collection<DataTreeCandidate> ipv4Input(final YangInstanceIdentifier target, final ModificationType type, final Ipv4Prefix... prefix) {
+ public Collection<DataTreeCandidate> ipv4Input(final YangInstanceIdentifier target,
+ final ModificationType type, final Ipv4Prefix... prefix) {
final Collection<DataTreeCandidate> col = new HashSet<>();
- final DataTreeCandidate candidate = Mockito.mock(DataTreeCandidate.class);
- final DataTreeCandidateNode rootNode = Mockito.mock(DataTreeCandidateNode.class);
- Mockito.doReturn(rootNode).when(candidate).getRootNode();
- Mockito.doReturn(type).when(rootNode).getModificationType();
- Mockito.doCallRealMethod().when(rootNode).toString();
- Mockito.doReturn(target).when(candidate).getRootPath();
- Mockito.doCallRealMethod().when(candidate).toString();
+ final DataTreeCandidate candidate = mock(DataTreeCandidate.class);
+ final DataTreeCandidateNode rootNode = mock(DataTreeCandidateNode.class);
+ doReturn(rootNode).when(candidate).getRootNode();
+ doReturn(type).when(rootNode).getModificationType();
+ doCallRealMethod().when(rootNode).toString();
+ doReturn(target).when(candidate).getRootPath();
+ doCallRealMethod().when(candidate).toString();
final Collection<DataTreeCandidateNode> children = new HashSet<>();
for (final Ipv4Prefix p : prefix) {
- final NodeIdentifierWithPredicates routekey = new NodeIdentifierWithPredicates(Ipv4Route.QNAME, PREFIX_QNAME, p);
- final DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> b = ImmutableNodes.mapEntryBuilder();
+ final NodeIdentifierWithPredicates routekey =
+ NodeIdentifierWithPredicates.of(Ipv4Route.QNAME, PREFIX_QNAME, p);
+ final DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> b =
+ ImmutableNodes.mapEntryBuilder();
b.withNodeIdentifier(routekey);
- b.addChild(Builders.leafBuilder().withNodeIdentifier(new NodeIdentifier(PREFIX_QNAME)).withValue(p).build());
+ b.addChild(Builders.leafBuilder()
+ .withNodeIdentifier(new NodeIdentifier(PREFIX_QNAME)).withValue(p).build());
- final DataTreeCandidateNode child = Mockito.mock(DataTreeCandidateNode.class);
- Mockito.doReturn(createIdentifier(p)).when(child).getIdentifier();
- Mockito.doReturn(Optional.of(b.build())).when(child).getDataAfter();
- Mockito.doReturn(type).when(child).getModificationType();
+ final DataTreeCandidateNode child = mock(DataTreeCandidateNode.class);
+ doReturn(createIdentifier(p)).when(child).getIdentifier();
+ doReturn(java.util.Optional.of(b.build())).when(child).getDataAfter();
+ doReturn(type).when(child).getModificationType();
children.add(child);
}
- Mockito.doReturn(children).when(rootNode).getChildNodes();
+ doReturn(children).when(rootNode).getChildNodes();
col.add(candidate);
return col;
}
public PathArgument createIdentifier(final Ipv4Prefix prefix) {
- final NodeIdentifierWithPredicates routekey = new NodeIdentifierWithPredicates(Ipv4Route.QNAME, PREFIX_QNAME, prefix);
+ final NodeIdentifierWithPredicates routekey =
+ NodeIdentifierWithPredicates.of(Ipv4Route.QNAME, PREFIX_QNAME, prefix);
return YangInstanceIdentifier.of(PREFIX_QNAME).node(routekey).getLastPathArgument();
}
return this.rib;
}
- public DOMDataBroker getDOMBroker() {
- return this.dom;
- }
-
- public DOMDataWriteTransaction getTransaction() {
+ public DOMDataTreeWriteTransaction getTransaction() {
return this.domTransWrite;
}
- @After
- public void tearDown() {
- this.a1.close();
- }
-
- private class listenerRegistration implements ListenerRegistration {
+ private class TestListenerRegistration implements ListenerRegistration<EventListener> {
@Override
- public Object getInstance() {
+ public EventListener getInstance() {
return null;
}