+++ /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;
-
-
-import com.google.common.base.Preconditions;
-import com.google.common.collect.ImmutableMap;
-import org.opendaylight.controller.config.util.xml.DocumentedException;
-import org.opendaylight.controller.config.util.xml.XmlUtil;
-import org.opendaylight.controller.netconf.api.NetconfMessage;
-import org.opendaylight.controller.netconf.api.NetconfSessionListener;
-import org.opendaylight.controller.netconf.api.NetconfTerminationReason;
-import org.opendaylight.controller.netconf.api.monitoring.NetconfMonitoringService;
-import org.opendaylight.controller.netconf.api.xml.XmlNetconfConstants;
-import org.opendaylight.controller.netconf.impl.osgi.NetconfOperationRouter;
-import org.opendaylight.controller.netconf.util.messages.SendErrorExceptionUtil;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.w3c.dom.Document;
-import org.w3c.dom.NamedNodeMap;
-import org.w3c.dom.Node;
-
-public class NetconfServerSessionListener implements NetconfSessionListener<NetconfServerSession> {
-
- private static final Logger LOG = LoggerFactory.getLogger(NetconfServerSessionListener.class);
- private final NetconfMonitoringService monitoringService;
- private final NetconfOperationRouter operationRouter;
- private final AutoCloseable onSessionDownCloseable;
-
- public NetconfServerSessionListener(final NetconfOperationRouter operationRouter, final NetconfMonitoringService monitoringService,
- final AutoCloseable onSessionDownCloseable) {
- this.operationRouter = operationRouter;
- this.monitoringService = monitoringService;
- this.onSessionDownCloseable = onSessionDownCloseable;
- }
-
- @Override
- public void onSessionUp(final NetconfServerSession netconfNetconfServerSession) {
- monitoringService.onSessionUp(netconfNetconfServerSession);
- // FIXME monitoring service should be also notified about all the other changes to netconf session (from ietf-netconf-monitoring point of view)
- // This means also notifying after every message is processed
- }
-
- @Override
- public void onSessionDown(final NetconfServerSession netconfNetconfServerSession, final Exception cause) {
- LOG.debug("Session {} down, reason: {}", netconfNetconfServerSession, cause.getMessage());
- onDown(netconfNetconfServerSession);
- }
-
- public void onDown(final NetconfServerSession netconfNetconfServerSession) {
- monitoringService.onSessionDown(netconfNetconfServerSession);
-
- try {
- operationRouter.close();
- } catch (Exception closingEx) {
- LOG.debug("Ignoring exception while closing operationRouter", closingEx);
- }
- try {
- onSessionDownCloseable.close();
- } catch(Exception ex){
- LOG.debug("Ignoring exception while closing onSessionDownCloseable", ex);
- }
- }
-
- @Override
- public void onSessionTerminated(final NetconfServerSession netconfNetconfServerSession,
- final NetconfTerminationReason netconfTerminationReason) {
- LOG.debug("Session {} terminated, reason: {}", netconfNetconfServerSession,
- netconfTerminationReason.getErrorMessage());
- onDown(netconfNetconfServerSession);
- }
-
- @Override
- public void onMessage(final NetconfServerSession session, final NetconfMessage netconfMessage) {
- try {
-
- Preconditions.checkState(operationRouter != null, "Cannot handle message, session up was not yet received");
- // FIXME: there is no validation since the document may contain yang
- // schemas
- final NetconfMessage message = processDocument(netconfMessage,
- session);
- LOG.debug("Responding with message {}", message);
- session.sendMessage(message);
- } catch (final RuntimeException e) {
- // TODO: should send generic error or close session?
- LOG.error("Unexpected exception", e);
- session.onIncommingRpcFail();
- throw new IllegalStateException("Unable to process incoming message " + netconfMessage, e);
- } catch (DocumentedException e) {
- LOG.trace("Error occurred while processing message",e);
- session.onOutgoingRpcError();
- session.onIncommingRpcFail();
- SendErrorExceptionUtil.sendErrorMessage(session, e, netconfMessage);
- }
- }
-
- private NetconfMessage processDocument(final NetconfMessage netconfMessage, final NetconfServerSession session)
- throws DocumentedException {
-
- final Document incomingDocument = netconfMessage.getDocument();
- final Node rootNode = incomingDocument.getDocumentElement();
-
- if (rootNode.getLocalName().equals(XmlNetconfConstants.RPC_KEY)) {
- final Document responseDocument = XmlUtil.newDocument();
- checkMessageId(rootNode);
-
- Document rpcReply = operationRouter.onNetconfMessage(incomingDocument, session);
-
- rpcReply = SubtreeFilter.applySubtreeFilter(incomingDocument, rpcReply);
-
- session.onIncommingRpcSuccess();
-
- responseDocument.appendChild(responseDocument.importNode(rpcReply.getDocumentElement(), true));
- return new NetconfMessage(responseDocument);
- } else {
- // unknown command, send RFC 4741 p.70 unknown-element
- /*
- * Tag: unknown-element Error-type: rpc, protocol, application
- * Severity: error Error-info: <bad-element> : name of the
- * unexpected element Description: An unexpected element is present.
- */
- // TODO add message to error info
- throw new DocumentedException("Unknown tag " + rootNode.getNodeName(),
- DocumentedException.ErrorType.protocol, DocumentedException.ErrorTag.unknown_element,
- DocumentedException.ErrorSeverity.error, ImmutableMap.of("bad-element",
- rootNode.getNodeName()));
- }
- }
-
- private static void checkMessageId(final Node rootNode) throws DocumentedException {
-
- NamedNodeMap attributes = rootNode.getAttributes();
-
- if(attributes.getNamedItemNS(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0, XmlNetconfConstants.MESSAGE_ID)!=null) {
- return;
- }
-
- if(attributes.getNamedItem(XmlNetconfConstants.MESSAGE_ID)!=null) {
- return;
- }
-
- throw new DocumentedException("Missing attribute" + rootNode.getNodeName(),
- DocumentedException.ErrorType.protocol, DocumentedException.ErrorTag.missing_attribute,
- DocumentedException.ErrorSeverity.error,
- ImmutableMap.of(DocumentedException.ErrorTag.missing_attribute.toString(),
- XmlNetconfConstants.MESSAGE_ID));
- }
-}
Code Review / controller.git / blobdiff