+++ /dev/null
-/*
- * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-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 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.config.util.xml.DocumentedException;
-import org.opendaylight.controller.config.util.xml.XmlUtil;
-import org.opendaylight.controller.netconf.api.monitoring.NetconfMonitoringService;
-import org.opendaylight.controller.netconf.impl.NetconfServerSession;
-import org.opendaylight.controller.netconf.impl.mapping.operations.DefaultCloseSession;
-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.mapping.api.HandlingPriority;
-import org.opendaylight.controller.netconf.mapping.api.NetconfOperation;
-import org.opendaylight.controller.netconf.mapping.api.NetconfOperationChainedExecution;
-import org.opendaylight.controller.netconf.mapping.api.NetconfOperationService;
-import org.opendaylight.controller.netconf.mapping.api.SessionAwareNetconfOperation;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.w3c.dom.Document;
-
-public class NetconfOperationRouterImpl implements NetconfOperationRouter {
-
- private static final Logger LOG = LoggerFactory.getLogger(NetconfOperationRouterImpl.class);
- private final NetconfOperationService netconfOperationServiceSnapshot;
- private final Collection<NetconfOperation> allNetconfOperations;
-
- public NetconfOperationRouterImpl(final NetconfOperationService netconfOperationServiceSnapshot,
- final NetconfMonitoringService netconfMonitoringService, final String sessionId) {
- this.netconfOperationServiceSnapshot = Preconditions.checkNotNull(netconfOperationServiceSnapshot);
-
- final Set<NetconfOperation> ops = new HashSet<>();
- ops.add(new DefaultCloseSession(sessionId, this));
- ops.add(new DefaultStartExi(sessionId));
- ops.add(new DefaultStopExi(sessionId));
-
- ops.addAll(netconfOperationServiceSnapshot.getNetconfOperations());
-
- allNetconfOperations = ImmutableSet.copyOf(ops);
- }
-
- @Override
- public Document onNetconfMessage(final Document message, final NetconfServerSession session) throws DocumentedException {
- Preconditions.checkNotNull(allNetconfOperations, "Operation router was not initialized properly");
-
- final NetconfOperationExecution netconfOperationExecution;
- try {
- netconfOperationExecution = getNetconfOperationWithHighestPriority(message, session);
- } catch (IllegalArgumentException | IllegalStateException e) {
- final String messageAsString = XmlUtil.toString(message);
- LOG.warn("Unable to handle rpc {} on session {}", messageAsString, session, e);
-
- final DocumentedException.ErrorTag tag;
- if (e instanceof IllegalArgumentException) {
- tag = DocumentedException.ErrorTag.operation_not_supported;
- } else {
- tag = DocumentedException.ErrorTag.operation_failed;
- }
-
- throw new DocumentedException(
- String.format("Unable to handle rpc %s on session %s", messageAsString, session),
- e, DocumentedException.ErrorType.application,
- tag, DocumentedException.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);
- } catch (RuntimeException e) {
- throw handleUnexpectedEx("Unexpected exception during netconf operation execution", e);
- }
- }
-
- @Override
- public void close() throws Exception {
- netconfOperationServiceSnapshot.close();
- }
-
- private static DocumentedException handleUnexpectedEx(final String s, final Exception e) throws DocumentedException {
- LOG.error("{}", s, e);
- return new DocumentedException("Unexpected error",
- DocumentedException.ErrorType.application,
- DocumentedException.ErrorTag.operation_failed,
- DocumentedException.ErrorSeverity.error,
- Collections.singletonMap(DocumentedException.ErrorSeverity.error.toString(), e.toString()));
- }
-
- private Document executeOperationWithHighestPriority(final Document message,
- final NetconfOperationExecution netconfOperationExecution)
- throws DocumentedException {
- if (LOG.isDebugEnabled()) {
- LOG.debug("Forwarding netconf message {} to {}", XmlUtil.toString(message), netconfOperationExecution.netconfOperation);
- }
-
- return netconfOperationExecution.execute(message);
- }
-
- private NetconfOperationExecution getNetconfOperationWithHighestPriority(
- final Document message, final NetconfServerSession session) throws DocumentedException {
-
- NavigableMap<HandlingPriority, NetconfOperation> sortedByPriority = getSortedNetconfOperationsWithCanHandle(
- message, session);
-
- 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(final Document message,
- final NetconfServerSession session) throws DocumentedException {
- TreeMap<HandlingPriority, NetconfOperation> sortedPriority = Maps.newTreeMap();
-
- for (NetconfOperation netconfOperation : allNetconfOperations) {
- final HandlingPriority handlingPriority = netconfOperation.canHandle(message);
- if (netconfOperation instanceof DefaultNetconfOperation) {
- ((DefaultNetconfOperation) netconfOperation).setNetconfSession(session);
- }
- if(netconfOperation instanceof SessionAwareNetconfOperation) {
- ((SessionAwareNetconfOperation) netconfOperation).setSession(session);
- }
- if (!handlingPriority.equals(HandlingPriority.CANNOT_HANDLE)) {
-
- Preconditions.checkState(!sortedPriority.containsKey(handlingPriority),
- "Multiple %s available to handle message %s with priority %s, %s and %s",
- NetconfOperation.class.getName(), message, handlingPriority, netconfOperation, sortedPriority.get(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 DocumentedException {
- throw new DocumentedException("This execution represents the termination point in operation execution and cannot be executed itself",
- DocumentedException.ErrorType.application,
- DocumentedException.ErrorTag.operation_failed,
- DocumentedException.ErrorSeverity.error);
- }
- };
-
- private static class NetconfOperationExecution implements NetconfOperationChainedExecution {
- private final NetconfOperation netconfOperation;
- private final NetconfOperationChainedExecution subsequentExecution;
-
- private NetconfOperationExecution(final NetconfOperation netconfOperation, final NetconfOperationChainedExecution subsequentExecution) {
- this.netconfOperation = netconfOperation;
- this.subsequentExecution = subsequentExecution;
- }
-
- @Override
- public boolean isExecutionTermination() {
- return false;
- }
-
- @Override
- public Document execute(final Document message) throws DocumentedException {
- return netconfOperation.handle(message, subsequentExecution);
- }
-
- public static NetconfOperationExecution createExecutionChain(
- final NavigableMap<HandlingPriority, NetconfOperation> sortedByPriority, final HandlingPriority handlingPriority) {
- NetconfOperation netconfOperation = sortedByPriority.get(handlingPriority);
- HandlingPriority subsequentHandlingPriority = sortedByPriority.lowerKey(handlingPriority);
-
- NetconfOperationChainedExecution subsequentExecution = null;
-
- if (subsequentHandlingPriority != null) {
- subsequentExecution = createExecutionChain(sortedByPriority, subsequentHandlingPriority);
- } else {
- subsequentExecution = EXECUTION_TERMINATION_POINT;
- }
-
- return new NetconfOperationExecution(netconfOperation, subsequentExecution);
- }
- }
-
- @Override
- public String toString() {
- return "NetconfOperationRouterImpl{" + "netconfOperationServiceSnapshot=" + netconfOperationServiceSnapshot
- + '}';
- }
-}
Code Review / controller.git / blobdiff