2 * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.netconf.client;
10 import static java.util.Objects.requireNonNull;
12 import com.google.common.collect.ImmutableSet;
13 import com.siemens.ct.exi.core.CodingMode;
14 import com.siemens.ct.exi.core.FidelityOptions;
15 import com.siemens.ct.exi.core.exceptions.UnsupportedOption;
16 import io.netty.channel.Channel;
17 import io.netty.util.Timer;
18 import io.netty.util.concurrent.Promise;
19 import java.util.Optional;
21 import org.opendaylight.netconf.api.NetconfClientSessionPreferences;
22 import org.opendaylight.netconf.api.NetconfMessage;
23 import org.opendaylight.netconf.api.NetconfSessionListenerFactory;
24 import org.opendaylight.netconf.api.messages.NetconfHelloMessage;
25 import org.opendaylight.netconf.api.messages.NetconfHelloMessageAdditionalHeader;
26 import org.opendaylight.netconf.api.xml.XmlNetconfConstants;
27 import org.opendaylight.netconf.nettyutil.NetconfSessionNegotiatorFactory;
28 import org.opendaylight.netconf.nettyutil.handler.exi.EXIParameters;
29 import org.opendaylight.netconf.nettyutil.handler.exi.NetconfStartExiMessage;
30 import org.slf4j.Logger;
31 import org.slf4j.LoggerFactory;
33 public class NetconfClientSessionNegotiatorFactory
34 implements NetconfSessionNegotiatorFactory<NetconfClientSession, NetconfClientSessionListener> {
36 public static final Set<String> EXI_CLIENT_CAPABILITIES = ImmutableSet.of(
37 XmlNetconfConstants.URN_IETF_PARAMS_NETCONF_BASE_1_0,
38 XmlNetconfConstants.URN_IETF_PARAMS_NETCONF_BASE_1_1,
39 XmlNetconfConstants.URN_IETF_PARAMS_NETCONF_CAPABILITY_EXI_1_0);
41 public static final Set<String> LEGACY_EXI_CLIENT_CAPABILITIES = ImmutableSet.of(
42 XmlNetconfConstants.URN_IETF_PARAMS_NETCONF_BASE_1_0,
43 XmlNetconfConstants.URN_IETF_PARAMS_NETCONF_CAPABILITY_EXI_1_0);
45 public static final Set<String> DEFAULT_CLIENT_CAPABILITIES = ImmutableSet.of(
46 XmlNetconfConstants.URN_IETF_PARAMS_NETCONF_BASE_1_0,
47 XmlNetconfConstants.URN_IETF_PARAMS_NETCONF_BASE_1_1);
49 public static final Set<String> LEGACY_FRAMING_CLIENT_CAPABILITIES = ImmutableSet.of(
50 XmlNetconfConstants.URN_IETF_PARAMS_NETCONF_BASE_1_0);
52 private static final Logger LOG = LoggerFactory.getLogger(NetconfClientSessionNegotiatorFactory.class);
53 private static final String START_EXI_MESSAGE_ID = "default-start-exi";
54 private static final EXIParameters DEFAULT_OPTIONS;
57 final FidelityOptions fidelity = FidelityOptions.createDefault();
59 fidelity.setFidelity(FidelityOptions.FEATURE_DTD, true);
60 fidelity.setFidelity(FidelityOptions.FEATURE_LEXICAL_VALUE, true);
61 fidelity.setFidelity(FidelityOptions.FEATURE_PREFIX, true);
62 } catch (UnsupportedOption e) {
63 LOG.warn("Failed to set fidelity options, continuing", e);
66 DEFAULT_OPTIONS = new EXIParameters(CodingMode.BYTE_PACKED, fidelity);
69 private final Optional<NetconfHelloMessageAdditionalHeader> additionalHeader;
70 private final Set<String> clientCapabilities;
71 private final long connectionTimeoutMillis;
72 private final Timer timer;
73 private final EXIParameters options;
75 public NetconfClientSessionNegotiatorFactory(final Timer timer,
76 final Optional<NetconfHelloMessageAdditionalHeader> additionalHeader,
77 final long connectionTimeoutMillis) {
78 this(timer, additionalHeader, connectionTimeoutMillis, DEFAULT_OPTIONS);
81 public NetconfClientSessionNegotiatorFactory(final Timer timer,
82 final Optional<NetconfHelloMessageAdditionalHeader> additionalHeader,
83 final long connectionTimeoutMillis, final Set<String> capabilities) {
84 this(timer, additionalHeader, connectionTimeoutMillis, DEFAULT_OPTIONS, capabilities);
88 public NetconfClientSessionNegotiatorFactory(final Timer timer,
89 final Optional<NetconfHelloMessageAdditionalHeader> additionalHeader,
90 final long connectionTimeoutMillis, final EXIParameters exiOptions) {
91 this(timer, additionalHeader, connectionTimeoutMillis, exiOptions, EXI_CLIENT_CAPABILITIES);
94 public NetconfClientSessionNegotiatorFactory(final Timer timer,
95 final Optional<NetconfHelloMessageAdditionalHeader> additionalHeader,
96 final long connectionTimeoutMillis, final EXIParameters exiOptions,
97 final Set<String> capabilities) {
98 this.timer = requireNonNull(timer);
99 this.additionalHeader = additionalHeader;
100 this.connectionTimeoutMillis = connectionTimeoutMillis;
101 this.options = exiOptions;
102 this.clientCapabilities = capabilities;
106 public NetconfClientSessionNegotiator getSessionNegotiator(
107 final NetconfSessionListenerFactory<NetconfClientSessionListener> sessionListenerFactory,
108 final Channel channel, final Promise<NetconfClientSession> promise) {
110 NetconfMessage startExiMessage = NetconfStartExiMessage.create(options, START_EXI_MESSAGE_ID);
111 NetconfHelloMessage helloMessage = NetconfHelloMessage.createClientHello(clientCapabilities, additionalHeader);
113 NetconfClientSessionPreferences proposal = new NetconfClientSessionPreferences(helloMessage, startExiMessage);
114 return new NetconfClientSessionNegotiator(proposal, promise, channel, timer,
115 sessionListenerFactory.getSessionListener(), connectionTimeoutMillis);