package org.opendaylight.controller.netconf.impl.osgi;
import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Maps;
-import com.google.common.collect.Sets;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.NavigableMap;
+import java.util.Set;
+import java.util.TreeMap;
import org.opendaylight.controller.netconf.api.NetconfDocumentedException;
import org.opendaylight.controller.netconf.impl.DefaultCommitNotificationProducer;
import org.opendaylight.controller.netconf.impl.NetconfServerSession;
import org.opendaylight.controller.netconf.impl.mapping.operations.DefaultCloseSession;
import org.opendaylight.controller.netconf.impl.mapping.operations.DefaultCommit;
import org.opendaylight.controller.netconf.impl.mapping.operations.DefaultGetSchema;
+import org.opendaylight.controller.netconf.impl.mapping.operations.DefaultNetconfOperation;
import org.opendaylight.controller.netconf.impl.mapping.operations.DefaultStartExi;
import org.opendaylight.controller.netconf.impl.mapping.operations.DefaultStopExi;
-import org.opendaylight.controller.netconf.impl.mapping.operations.DefaultNetconfOperation;
import org.opendaylight.controller.netconf.mapping.api.HandlingPriority;
import org.opendaylight.controller.netconf.mapping.api.NetconfOperation;
import org.opendaylight.controller.netconf.mapping.api.NetconfOperationChainedExecution;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Document;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-import java.util.TreeMap;
-
public class NetconfOperationRouterImpl implements NetconfOperationRouter {
- private static final Logger logger = LoggerFactory.getLogger(NetconfOperationRouterImpl.class);
-
+ private static final Logger LOG = LoggerFactory.getLogger(NetconfOperationRouterImpl.class);
private final NetconfOperationServiceSnapshot netconfOperationServiceSnapshot;
- private Set<NetconfOperation> allNetconfOperations;
+ private final Collection<NetconfOperation> allNetconfOperations;
- private NetconfOperationRouterImpl(NetconfOperationServiceSnapshot netconfOperationServiceSnapshot) {
- this.netconfOperationServiceSnapshot = netconfOperationServiceSnapshot;
- }
-
- private void initNetconfOperations(Set<NetconfOperation> allOperations) {
- allNetconfOperations = allOperations;
- }
-
- /**
- * Factory method to produce instance of NetconfOperationRouter
- */
- public static NetconfOperationRouter createOperationRouter(NetconfOperationServiceSnapshot netconfOperationServiceSnapshot,
- CapabilityProvider capabilityProvider, DefaultCommitNotificationProducer commitNotifier) {
- NetconfOperationRouterImpl router = new NetconfOperationRouterImpl(netconfOperationServiceSnapshot);
-
- Preconditions.checkNotNull(netconfOperationServiceSnapshot);
- Preconditions.checkNotNull(capabilityProvider);
+ public NetconfOperationRouterImpl(final NetconfOperationServiceSnapshot netconfOperationServiceSnapshot, final CapabilityProvider capabilityProvider,
+ final DefaultCommitNotificationProducer commitNotifier) {
+ this.netconfOperationServiceSnapshot = Preconditions.checkNotNull(netconfOperationServiceSnapshot);
final String sessionId = netconfOperationServiceSnapshot.getNetconfSessionIdForReporting();
- final Set<NetconfOperation> defaultNetconfOperations = Sets.newHashSet();
- defaultNetconfOperations.add(new DefaultGetSchema(capabilityProvider, sessionId));
- defaultNetconfOperations.add(new DefaultCloseSession(sessionId, router));
- defaultNetconfOperations.add(new DefaultStartExi(sessionId));
- defaultNetconfOperations.add(new DefaultStopExi(sessionId));
- defaultNetconfOperations.add(new DefaultCommit(commitNotifier, capabilityProvider, sessionId, router));
-
- router.initNetconfOperations(getAllNetconfOperations(defaultNetconfOperations, netconfOperationServiceSnapshot));
-
- return router;
- }
-
- private static Set<NetconfOperation> getAllNetconfOperations(Set<NetconfOperation> defaultNetconfOperations,
- NetconfOperationServiceSnapshot netconfOperationServiceSnapshot) {
- Set<NetconfOperation> result = new HashSet<>();
- result.addAll(defaultNetconfOperations);
+ final Set<NetconfOperation> ops = new HashSet<>();
+ ops.add(new DefaultGetSchema(capabilityProvider, sessionId));
+ ops.add(new DefaultCloseSession(sessionId, this));
+ ops.add(new DefaultStartExi(sessionId));
+ ops.add(new DefaultStopExi(sessionId));
+ ops.add(new DefaultCommit(commitNotifier, capabilityProvider, sessionId, this));
for (NetconfOperationService netconfOperationService : netconfOperationServiceSnapshot.getServices()) {
- final Set<NetconfOperation> netOpsFromService = netconfOperationService.getNetconfOperations();
- for (NetconfOperation netconfOperation : netOpsFromService) {
- Preconditions.checkState(result.contains(netconfOperation) == false,
+ for (NetconfOperation netconfOperation : netconfOperationService.getNetconfOperations()) {
+ Preconditions.checkState(!ops.contains(netconfOperation),
"Netconf operation %s already present", netconfOperation);
- result.add(netconfOperation);
+ ops.add(netconfOperation);
}
}
- return Collections.unmodifiableSet(result);
+
+ allNetconfOperations = ImmutableSet.copyOf(ops);
}
@Override
- public synchronized Document onNetconfMessage(Document message,
- NetconfServerSession session) throws NetconfDocumentedException {
+ public Document onNetconfMessage(final Document message, final NetconfServerSession session) throws NetconfDocumentedException {
Preconditions.checkNotNull(allNetconfOperations, "Operation router was not initialized properly");
- NetconfOperationExecution netconfOperationExecution;
- String messageAsString = XmlUtil.toString(message);
-
+ final NetconfOperationExecution netconfOperationExecution;
try {
netconfOperationExecution = getNetconfOperationWithHighestPriority(message, session);
} catch (IllegalArgumentException | IllegalStateException e) {
- logger.warn("Unable to handle rpc {} on session {}", messageAsString, session, e);
+ final String messageAsString = XmlUtil.toString(message);
+ LOG.warn("Unable to handle rpc {} on session {}", messageAsString, session, e);
- String errorMessage = String.format("Unable to handle rpc %s on session %s", messageAsString, session);
- Map<String, String> errorInfo = Maps.newHashMap();
-
- NetconfDocumentedException.ErrorTag tag;
+ final NetconfDocumentedException.ErrorTag tag;
if (e instanceof IllegalArgumentException) {
- errorInfo.put(NetconfDocumentedException.ErrorTag.operation_not_supported.toString(), e.getMessage());
tag = NetconfDocumentedException.ErrorTag.operation_not_supported;
} else {
- errorInfo.put(NetconfDocumentedException.ErrorTag.operation_failed.toString(), e.getMessage());
tag = NetconfDocumentedException.ErrorTag.operation_failed;
}
- throw new NetconfDocumentedException(errorMessage, e, NetconfDocumentedException.ErrorType.application,
- tag, NetconfDocumentedException.ErrorSeverity.error, errorInfo);
+ throw new NetconfDocumentedException(
+ String.format("Unable to handle rpc %s on session %s", messageAsString, session),
+ e, NetconfDocumentedException.ErrorType.application,
+ tag, NetconfDocumentedException.ErrorSeverity.error,
+ Collections.singletonMap(tag.toString(), e.getMessage()));
} catch (RuntimeException e) {
throw handleUnexpectedEx("Unexpected exception during netconf operation sort", e);
}
try {
- return executeOperationWithHighestPriority(message, netconfOperationExecution, messageAsString);
+ return executeOperationWithHighestPriority(message, netconfOperationExecution);
} catch (RuntimeException e) {
throw handleUnexpectedEx("Unexpected exception during netconf operation execution", e);
}
netconfOperationServiceSnapshot.close();
}
- private NetconfDocumentedException handleUnexpectedEx(String s, Exception e) throws NetconfDocumentedException {
- logger.error(s, e);
-
- Map<String, String> info = Maps.newHashMap();
- info.put(NetconfDocumentedException.ErrorSeverity.error.toString(), e.toString());
+ private static NetconfDocumentedException handleUnexpectedEx(final String s, final Exception e) throws NetconfDocumentedException {
+ LOG.error("{}", s, e);
return new NetconfDocumentedException("Unexpected error",
NetconfDocumentedException.ErrorType.application,
NetconfDocumentedException.ErrorTag.operation_failed,
- NetconfDocumentedException.ErrorSeverity.error, info);
+ NetconfDocumentedException.ErrorSeverity.error,
+ Collections.singletonMap(NetconfDocumentedException.ErrorSeverity.error.toString(), e.toString()));
}
- private Document executeOperationWithHighestPriority(Document message,
- NetconfOperationExecution netconfOperationExecution, String messageAsString)
+ private Document executeOperationWithHighestPriority(final Document message,
+ final NetconfOperationExecution netconfOperationExecution)
throws NetconfDocumentedException {
- logger.debug("Forwarding netconf message {} to {}", messageAsString, netconfOperationExecution.netconfOperation);
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("Forwarding netconf message {} to {}", XmlUtil.toString(message), netconfOperationExecution.netconfOperation);
+ }
+
return netconfOperationExecution.execute(message);
}
private NetconfOperationExecution getNetconfOperationWithHighestPriority(
- Document message, NetconfServerSession session) {
+ final Document message, final NetconfServerSession session) throws NetconfDocumentedException {
- TreeMap<HandlingPriority, NetconfOperation> sortedByPriority = getSortedNetconfOperationsWithCanHandle(
+ NavigableMap<HandlingPriority, NetconfOperation> sortedByPriority = getSortedNetconfOperationsWithCanHandle(
message, session);
- Preconditions.checkArgument(sortedByPriority.isEmpty() == false,
- "No %s available to handle message %s", NetconfOperation.class.getName(),
- XmlUtil.toString(message));
+ if (sortedByPriority.isEmpty()) {
+ throw new IllegalArgumentException(String.format("No %s available to handle message %s",
+ NetconfOperation.class.getName(), XmlUtil.toString(message)));
+ }
return NetconfOperationExecution.createExecutionChain(sortedByPriority, sortedByPriority.lastKey());
}
- private TreeMap<HandlingPriority, NetconfOperation> getSortedNetconfOperationsWithCanHandle(Document message,
- NetconfServerSession session) {
+ private TreeMap<HandlingPriority, NetconfOperation> getSortedNetconfOperationsWithCanHandle(final Document message,
+ final NetconfServerSession session) throws NetconfDocumentedException {
TreeMap<HandlingPriority, NetconfOperation> sortedPriority = Maps.newTreeMap();
for (NetconfOperation netconfOperation : allNetconfOperations) {
if (netconfOperation instanceof DefaultNetconfOperation) {
((DefaultNetconfOperation) netconfOperation).setNetconfSession(session);
}
- if (handlingPriority.equals(HandlingPriority.CANNOT_HANDLE) == false) {
+ if (!handlingPriority.equals(HandlingPriority.CANNOT_HANDLE)) {
- Preconditions.checkState(sortedPriority.containsKey(handlingPriority) == false,
+ Preconditions.checkState(!sortedPriority.containsKey(handlingPriority),
"Multiple %s available to handle message %s with priority %s",
NetconfOperation.class.getName(), message, handlingPriority);
sortedPriority.put(handlingPriority, netconfOperation);
return sortedPriority;
}
+ public static final NetconfOperationChainedExecution EXECUTION_TERMINATION_POINT = new NetconfOperationChainedExecution() {
+ @Override
+ public boolean isExecutionTermination() {
+ return true;
+ }
+
+ @Override
+ public Document execute(final Document requestMessage) throws NetconfDocumentedException {
+ throw new NetconfDocumentedException("This execution represents the termination point in operation execution and cannot be executed itself",
+ NetconfDocumentedException.ErrorType.application,
+ NetconfDocumentedException.ErrorTag.operation_failed,
+ NetconfDocumentedException.ErrorSeverity.error);
+ }
+ };
+
private static class NetconfOperationExecution implements NetconfOperationChainedExecution {
private final NetconfOperation netconfOperation;
- private NetconfOperationChainedExecution subsequentExecution;
+ private final NetconfOperationChainedExecution subsequentExecution;
- private NetconfOperationExecution(NetconfOperation netconfOperation, NetconfOperationChainedExecution subsequentExecution) {
+ private NetconfOperationExecution(final NetconfOperation netconfOperation, final NetconfOperationChainedExecution subsequentExecution) {
this.netconfOperation = netconfOperation;
this.subsequentExecution = subsequentExecution;
}
}
@Override
- public Document execute(Document message) throws NetconfDocumentedException {
+ public Document execute(final Document message) throws NetconfDocumentedException {
return netconfOperation.handle(message, subsequentExecution);
}
public static NetconfOperationExecution createExecutionChain(
- TreeMap<HandlingPriority, NetconfOperation> sortedByPriority, HandlingPriority handlingPriority) {
+ final NavigableMap<HandlingPriority, NetconfOperation> sortedByPriority, final HandlingPriority handlingPriority) {
NetconfOperation netconfOperation = sortedByPriority.get(handlingPriority);
HandlingPriority subsequentHandlingPriority = sortedByPriority.lowerKey(handlingPriority);