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.Objects;
  14 import java.util.stream.Collectors;
  15 import javax.annotation.concurrent.GuardedBy;
  16 import javax.annotation.concurrent.ThreadSafe;
  17 import org.opendaylight.protocol.bgp.rib.spi.state.BGPPeerState;
  18 import org.opendaylight.protocol.bgp.rib.spi.state.BGPPeerStateConsumer;
  19 import org.opendaylight.protocol.bgp.rib.spi.state.BGPRIBState;
  20 import org.opendaylight.protocol.bgp.rib.spi.state.BGPRIBStateConsumer;
  21 import org.opendaylight.protocol.bgp.rib.spi.state.BGPStateConsumer;
  22 import org.opendaylight.protocol.bgp.rib.spi.state.BGPStateProvider;
  23
  24 @ThreadSafe
  25 public class BGPStateCollectorImpl implements BGPStateProvider, BGPStateConsumer {
  26     @GuardedBy("this")
  27     private final List<BGPRIBStateConsumer> bgpRibStates = new ArrayList<>();
  28     @GuardedBy("this")
  29     private final List<BGPPeerStateConsumer> bgpPeerStates = new ArrayList<>();
  30
  31     @Override
  32     public List<BGPRIBState> getRibStats() {
  33         synchronized (this.bgpRibStates) {
  34             return ImmutableList.copyOf(this.bgpRibStates
  35                     .stream()
  36                     .map(BGPRIBStateConsumer::getRIBState)
  37                     .filter(Objects::nonNull)
  38                     .collect(Collectors.toList()));
  39         }
  40     }
  41
  42     @Override
  43     public List<BGPPeerState> getPeerStats() {
  44         synchronized (this.bgpPeerStates) {
  45             return ImmutableList.copyOf(this.bgpPeerStates
  46                     .stream()
  47                     .map(BGPPeerStateConsumer::getPeerState)
  48                     .filter(Objects::nonNull)
  49                     .collect(Collectors.toList()));
  50         }
  51     }
  52
  53     @Override
  54     public void bind(final BGPRIBStateConsumer bgpState) {
  55         if (bgpState == null) {
  56             return;
  57         }
  58         synchronized (this.bgpRibStates) {
  59             this.bgpRibStates.add(bgpState);
  60         }
  61     }
  62
  63     @Override
  64     public void unbind(final BGPRIBStateConsumer bgpState) {
  65         if (bgpState == null) {
  66             return;
  67         }
  68         synchronized (this.bgpRibStates) {
  69             this.bgpRibStates.remove(bgpState);
  70         }
  71     }
  72
  73     @Override
  74     public void bind(final BGPPeerStateConsumer bgpState) {
  75         if (bgpState == null) {
  76             return;
  77         }
  78         synchronized (this.bgpPeerStates) {
  79             this.bgpPeerStates.add(bgpState);
  80         }
  81     }
  82
  83     @Override
  84     public void unbind(final BGPPeerStateConsumer bgpState) {
  85         if (bgpState == null) {
  86             return;
  87         }
  88         synchronized (this.bgpPeerStates) {
  89             this.bgpPeerStates.remove(bgpState);
  90         }
  91     }
  92 }