opendaylight/netconf/netconf-impl/src/main/java/org/opendaylight/controller/netconf/impl/NetconfServerSession.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.netconf.impl;
  10
  11 import java.text.SimpleDateFormat;
  12 import java.util.Date;
  13 import java.util.regex.Matcher;
  14 import java.util.regex.Pattern;
  15
  16 import org.opendaylight.controller.netconf.api.monitoring.NetconfManagementSession;
  17 import org.opendaylight.controller.netconf.util.AbstractNetconfSession;
  18 import org.opendaylight.controller.netconf.util.handler.NetconfEXICodec;
  19 import org.opendaylight.controller.netconf.util.handler.NetconfEXIToMessageDecoder;
  20 import org.opendaylight.controller.netconf.util.handler.NetconfMessageToEXIEncoder;
  21 import org.opendaylight.controller.netconf.util.handler.NetconfMessageToXMLEncoder;
  22 import org.opendaylight.controller.netconf.util.handler.NetconfXMLToMessageDecoder;
  23 import org.opendaylight.controller.netconf.util.messages.NetconfHelloMessageAdditionalHeader;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.DomainName;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Host;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.monitoring.extension.rev131210.NetconfTcp;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.monitoring.extension.rev131210.Session1;
  28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.monitoring.extension.rev131210.Session1Builder;
  29 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.monitoring.rev101004.NetconfSsh;
  30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.monitoring.rev101004.Transport;
  31 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.monitoring.rev101004.netconf.state.sessions.Session;
  32 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.monitoring.rev101004.netconf.state.sessions.SessionBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.monitoring.rev101004.netconf.state.sessions.SessionKey;
  34 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev100924.DateAndTime;
  35 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev100924.ZeroBasedCounter32;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 import com.google.common.base.Preconditions;
  40 import io.netty.channel.Channel;
  41
  42 public final class NetconfServerSession extends AbstractNetconfSession<NetconfServerSession, NetconfServerSessionListener> implements NetconfManagementSession {
  43
  44     private static final Logger logger = LoggerFactory.getLogger(NetconfServerSession.class);
  45
  46     private final NetconfHelloMessageAdditionalHeader header;
  47
  48     private Date loginTime;
  49     private long inRpcSuccess, inRpcFail, outRpcError;
  50
  51     public NetconfServerSession(NetconfServerSessionListener sessionListener, Channel channel, long sessionId,
  52             NetconfHelloMessageAdditionalHeader header) {
  53         super(sessionListener, channel, sessionId);
  54         this.header = header;
  55         logger.debug("Session {} created", toString());
  56     }
  57
  58     @Override
  59     protected void sessionUp() {
  60         super.sessionUp();
  61         Preconditions.checkState(loginTime == null, "Session is already up");
  62         this.loginTime = new Date();
  63     }
  64
  65     public void onIncommingRpcSuccess() {
  66         inRpcSuccess++;
  67     }
  68
  69     public void onIncommingRpcFail() {
  70         inRpcFail++;
  71     }
  72
  73     public void onOutgoingRpcError() {
  74         outRpcError++;
  75     }
  76
  77     public static final String ISO_DATE_FORMAT = "yyyy-MM-dd'T'HH:mm:ss.SSSXXX";
  78
  79     private static final String dateTimePatternString = DateAndTime.PATTERN_CONSTANTS.get(0);
  80     private static final Pattern dateTimePattern = Pattern.compile(dateTimePatternString);
  81
  82     @Override
  83     public Session toManagementSession() {
  84         SessionBuilder builder = new SessionBuilder();
  85
  86         builder.setSessionId(getSessionId());
  87         builder.setSourceHost(new Host(new DomainName(header.getAddress())));
  88
  89         Preconditions.checkState(DateAndTime.PATTERN_CONSTANTS.size() == 1);
  90         String formattedDateTime = formatDateTime(loginTime);
  91
  92         Matcher matcher = dateTimePattern.matcher(formattedDateTime);
  93         Preconditions.checkState(matcher.matches(), "Formatted datetime %s does not match pattern %s", formattedDateTime, dateTimePattern);
  94         builder.setLoginTime(new DateAndTime(formattedDateTime));
  95
  96         builder.setInBadRpcs(new ZeroBasedCounter32(inRpcFail));
  97         builder.setInRpcs(new ZeroBasedCounter32(inRpcSuccess));
  98         builder.setOutRpcErrors(new ZeroBasedCounter32(outRpcError));
  99
 100         builder.setUsername(header.getUserName());
 101         builder.setTransport(getTransportForString(header.getTransport()));
 102
 103         builder.setOutNotifications(new ZeroBasedCounter32(0L));
 104
 105         builder.setKey(new SessionKey(getSessionId()));
 106
 107         Session1Builder builder1 = new Session1Builder();
 108         builder1.setSessionIdentifier(header.getSessionIdentifier());
 109         builder.addAugmentation(Session1.class, builder1.build());
 110
 111         return builder.build();
 112     }
 113
 114     private Class<? extends Transport> getTransportForString(String transport) {
 115         switch(transport) {
 116         case "ssh" : return NetconfSsh.class;
 117         case "tcp" : return NetconfTcp.class;
 118         default: throw new IllegalArgumentException("Unknown transport type " + transport);
 119         }
 120     }
 121
 122     private String formatDateTime(Date loginTime) {
 123         SimpleDateFormat dateFormat = new SimpleDateFormat(ISO_DATE_FORMAT);
 124         return dateFormat.format(loginTime);
 125     }
 126
 127     @Override
 128     protected NetconfServerSession thisInstance() {
 129         return this;
 130     }
 131
 132     @Override
 133     protected void addExiHandlers(NetconfEXICodec exiCodec) {
 134         replaceMessageDecoder(new NetconfEXIToMessageDecoder(exiCodec));
 135         replaceMessageEncoderAfterNextMessage(new NetconfMessageToEXIEncoder(exiCodec));
 136     }
 137
 138     @Override
 139     public void stopExiCommunication() {
 140         replaceMessageDecoder(new NetconfXMLToMessageDecoder());
 141         replaceMessageEncoderAfterNextMessage(new NetconfMessageToXMLEncoder());
 142     }
 143 }