pcep/impl/src/main/java/org/opendaylight/protocol/pcep/impl/BasePCEPSessionProposalFactory.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 package org.opendaylight.protocol.pcep.impl;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.base.Preconditions;
  13 import java.net.InetSocketAddress;
  14 import java.util.List;
  15 import org.opendaylight.protocol.pcep.PCEPCapability;
  16 import org.opendaylight.protocol.pcep.PCEPPeerProposal;
  17 import org.opendaylight.protocol.pcep.PCEPSessionProposalFactory;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.open.object.Open;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.open.object.OpenBuilder;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.open.object.open.TlvsBuilder;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23
  24 public final class BasePCEPSessionProposalFactory implements PCEPSessionProposalFactory {
  25     private static final Logger LOG = LoggerFactory.getLogger(BasePCEPSessionProposalFactory.class);
  26     private static final int KA_TO_DEADTIMER_RATIO = 4;
  27
  28     private final int keepAlive, deadTimer;
  29     private final List<PCEPCapability> capabilities;
  30
  31     public BasePCEPSessionProposalFactory(final int deadTimer, final int keepAlive, final List<PCEPCapability> capabilities) {
  32         if(keepAlive != 0) {
  33             Preconditions.checkArgument(keepAlive >= 1, "Minimum value for keep-alive-timer-value is 1");
  34             if(deadTimer != 0 && (deadTimer / keepAlive != KA_TO_DEADTIMER_RATIO)) {
  35                 LOG.warn("dead-timer-value should be {} times greater than keep-alive-timer-value", KA_TO_DEADTIMER_RATIO);
  36             }
  37         }
  38
  39         this.deadTimer = deadTimer;
  40         this.keepAlive = keepAlive;
  41         this.capabilities = requireNonNull(capabilities);
  42     }
  43
  44     private void addTlvs(final InetSocketAddress address, final TlvsBuilder builder) {
  45         for (final PCEPCapability capability : this.capabilities) {
  46             capability.setCapabilityProposal(address, builder);
  47         }
  48     }
  49
  50     @Override
  51     public Open getSessionProposal(final InetSocketAddress address, final int sessionId,
  52             final PCEPPeerProposal peerProposal) {
  53         final OpenBuilder oBuilder = new OpenBuilder();
  54         oBuilder.setSessionId((short) sessionId);
  55         oBuilder.setKeepalive((short) BasePCEPSessionProposalFactory.this.keepAlive);
  56         if(BasePCEPSessionProposalFactory.this.keepAlive == 0) {
  57             oBuilder.setDeadTimer((short) 0);
  58         } else {
  59             oBuilder.setDeadTimer((short) BasePCEPSessionProposalFactory.this.deadTimer);
  60         }
  61
  62         final TlvsBuilder builder = new TlvsBuilder();
  63         addTlvs(address, builder);
  64
  65         if (peerProposal != null) {
  66             peerProposal.setPeerSpecificProposal(address, builder);
  67         }
  68         return oBuilder.setTlvs(builder.build()).build();
  69     }
  70
  71     @Override
  72     public List<PCEPCapability> getCapabilities() {
  73         return this.capabilities;
  74     }
  75 }