| /* |
| * Copyright 2015 Open Networking Laboratory |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.incubator.net.mcast.impl; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.Lists; |
| import org.onosproject.net.ConnectPoint; |
| |
| import java.util.Collections; |
| import java.util.List; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * Simple entity maintaining a mapping between a source and a collection of sink |
| * connect points. |
| */ |
| public final class MulticastData { |
| |
| private final ConnectPoint source; |
| private final List<ConnectPoint> sinks; |
| private final boolean isEmpty; |
| |
| private MulticastData() { |
| this.source = null; |
| this.sinks = Collections.EMPTY_LIST; |
| isEmpty = true; |
| } |
| |
| public MulticastData(ConnectPoint source, List<ConnectPoint> sinks) { |
| this.source = checkNotNull(source, "Multicast source cannot be null."); |
| this.sinks = checkNotNull(sinks, "List of sinks cannot be null."); |
| isEmpty = false; |
| } |
| |
| public MulticastData(ConnectPoint source, ConnectPoint sink) { |
| this.source = checkNotNull(source, "Multicast source cannot be null."); |
| this.sinks = Lists.newArrayList(checkNotNull(sink, "Sink cannot be null.")); |
| isEmpty = false; |
| } |
| |
| public MulticastData(ConnectPoint source) { |
| this.source = checkNotNull(source, "Multicast source cannot be null."); |
| this.sinks = Lists.newArrayList(); |
| isEmpty = false; |
| } |
| |
| public ConnectPoint source() { |
| return source; |
| } |
| |
| public List<ConnectPoint> sinks() { |
| return ImmutableList.copyOf(sinks); |
| } |
| |
| public void appendSink(ConnectPoint sink) { |
| sinks.add(sink); |
| } |
| |
| public boolean removeSink(ConnectPoint sink) { |
| return sinks.remove(sink); |
| } |
| |
| public boolean isEmpty() { |
| return isEmpty; |
| } |
| |
| public static MulticastData empty() { |
| return new MulticastData(); |
| } |
| |
| } |