bgp/rib-impl/src/main/java/org/opendaylight/protocol/bgp/rib/impl/state/BGPStateCollectorImpl.java

   1 /*
   2  * Copyright (c) 2016 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.bgp.rib.impl.state;
   9
  10 import com.google.common.collect.ImmutableList;
  11 import java.util.ArrayList;
  12 import java.util.List;
  13 import java.util.stream.Collectors;
  14 import javax.annotation.concurrent.GuardedBy;
  15 import javax.annotation.concurrent.ThreadSafe;
  16 import org.opendaylight.protocol.bgp.rib.spi.state.BGPPeerState;
  17 import org.opendaylight.protocol.bgp.rib.spi.state.BGPPeerStateConsumer;
  18 import org.opendaylight.protocol.bgp.rib.spi.state.BGPRIBState;
  19 import org.opendaylight.protocol.bgp.rib.spi.state.BGPRIBStateConsumer;
  20 import org.opendaylight.protocol.bgp.rib.spi.state.BGPStateConsumer;
  21 import org.opendaylight.protocol.bgp.rib.spi.state.BGPStateProvider;
  22
  23 @ThreadSafe
  24 public class BGPStateCollectorImpl implements BGPStateProvider, BGPStateConsumer {
  25     @GuardedBy("this")
  26     private final List<BGPRIBStateConsumer> bgpRibStates = new ArrayList<>();
  27     @GuardedBy("this")
  28     private final List<BGPPeerStateConsumer> bgpPeerStates = new ArrayList<>();
  29
  30     @Override
  31     public List<BGPRIBState> getRibStats() {
  32         synchronized (this.bgpRibStates) {
  33             return ImmutableList.copyOf(this.bgpRibStates.stream().map(BGPRIBStateConsumer::getRIBState)
  34                 .collect(Collectors.toList()));
  35         }
  36     }
  37
  38     @Override
  39     public List<BGPPeerState> getPeerStats() {
  40         synchronized (this.bgpPeerStates) {
  41             return ImmutableList.copyOf(this.bgpPeerStates.stream().map(BGPPeerStateConsumer::getPeerState)
  42                 .collect(Collectors.toList()));
  43         }
  44     }
  45
  46     @Override
  47     public void bind(final BGPRIBStateConsumer bgpState) {
  48         if (bgpState == null) {
  49             return;
  50         }
  51         synchronized (this.bgpRibStates) {
  52             this.bgpRibStates.add(bgpState);
  53         }
  54     }
  55
  56     @Override
  57     public void unbind(final BGPRIBStateConsumer bgpState) {
  58         if (bgpState == null) {
  59             return;
  60         }
  61         synchronized (this.bgpRibStates) {
  62             this.bgpRibStates.remove(bgpState);
  63         }
  64     }
  65
  66     @Override
  67     public void bind(final BGPPeerStateConsumer bgpState) {
  68         if (bgpState == null) {
  69             return;
  70         }
  71         synchronized (this.bgpPeerStates) {
  72             this.bgpPeerStates.add(bgpState);
  73         }
  74     }
  75
  76     @Override
  77     public void unbind(final BGPPeerStateConsumer bgpState) {
  78         if (bgpState == null) {
  79             return;
  80         }
  81         synchronized (this.bgpPeerStates) {
  82             this.bgpPeerStates.remove(bgpState);
  83         }
  84     }
  85 }