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 com.google.common.base.Preconditions;
  11 import java.net.InetSocketAddress;
  12 import java.util.List;
  13 import org.opendaylight.protocol.pcep.PCEPCapability;
  14 import org.opendaylight.protocol.pcep.PCEPPeerProposal;
  15 import org.opendaylight.protocol.pcep.PCEPSessionProposalFactory;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.Open;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.OpenBuilder;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.open.TlvsBuilder;
  19 import org.slf4j.Logger;
  20 import org.slf4j.LoggerFactory;
  21
  22 public final class BasePCEPSessionProposalFactory implements PCEPSessionProposalFactory {
  23     private static final Logger LOG = LoggerFactory.getLogger(BasePCEPSessionProposalFactory.class);
  24     private static final int KA_TO_DEADTIMER_RATIO = 4;
  25
  26     private final int keepAlive, deadTimer;
  27     private final List<PCEPCapability> capabilities;
  28
  29     public BasePCEPSessionProposalFactory(final int deadTimer, final int keepAlive, final List<PCEPCapability> capabilities) {
  30         if(keepAlive != 0) {
  31             Preconditions.checkArgument(keepAlive >= 1, "Minimum value for keep-alive-timer-value is 1");
  32             if(deadTimer != 0 && (deadTimer / keepAlive != KA_TO_DEADTIMER_RATIO)) {
  33                 LOG.warn("dead-timer-value should be {} times greater than keep-alive-timer-value", KA_TO_DEADTIMER_RATIO);
  34             }
  35         }
  36
  37         this.deadTimer = deadTimer;
  38         this.keepAlive = keepAlive;
  39         this.capabilities = capabilities;
  40     }
  41
  42     private void addTlvs(final InetSocketAddress address, final TlvsBuilder builder) {
  43         for (final PCEPCapability capability : this.capabilities) {
  44             capability.setCapabilityProposal(address, builder);
  45         }
  46     }
  47
  48     @Override
  49     public Open getSessionProposal(final InetSocketAddress address, final int sessionId,
  50             final PCEPPeerProposal peerProposal) {
  51         final OpenBuilder oBuilder = new OpenBuilder();
  52         oBuilder.setSessionId((short) sessionId);
  53         oBuilder.setKeepalive((short) BasePCEPSessionProposalFactory.this.keepAlive);
  54         if(BasePCEPSessionProposalFactory.this.keepAlive == 0) {
  55             oBuilder.setDeadTimer((short) 0);
  56         } else {
  57             oBuilder.setDeadTimer((short) BasePCEPSessionProposalFactory.this.deadTimer);
  58         }
  59
  60         final TlvsBuilder builder = new TlvsBuilder();
  61         addTlvs(address, builder);
  62
  63         if (peerProposal != null) {
  64             peerProposal.setPeerSpecificProposal(address, builder);
  65         }
  66         return oBuilder.setTlvs(builder.build()).build();
  67     }
  68
  69     @Override
  70     public List<PCEPCapability> getCapabilities() {
  71         return this.capabilities;
  72     }
  73 }