| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.flink.cep.nfa.sharedbuffer; |
| |
| import org.apache.flink.api.common.typeutils.TypeSerializer; |
| import org.apache.flink.api.common.typeutils.base.IntSerializer; |
| import org.apache.flink.api.common.typeutils.base.LongSerializer; |
| import org.apache.flink.api.common.typeutils.base.TypeSerializerSingleton; |
| import org.apache.flink.core.memory.DataInputView; |
| import org.apache.flink.core.memory.DataOutputView; |
| |
| import java.io.IOException; |
| import java.util.Comparator; |
| import java.util.Objects; |
| |
| /** |
| * Composite key for events in {@link SharedBuffer}. |
| */ |
| public class EventId implements Comparable<EventId> { |
| private final int id; |
| private final long timestamp; |
| |
| public EventId(int id, long timestamp) { |
| this.id = id; |
| this.timestamp = timestamp; |
| } |
| |
| public int getId() { |
| return id; |
| } |
| |
| public long getTimestamp() { |
| return timestamp; |
| } |
| |
| public static final Comparator<EventId> COMPARATOR = Comparator.comparingLong(EventId::getTimestamp) |
| .thenComparingInt(EventId::getId); |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| EventId eventId = (EventId) o; |
| return id == eventId.id && |
| timestamp == eventId.timestamp; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(id, timestamp); |
| } |
| |
| @Override |
| public String toString() { |
| return "EventId{" + |
| "id=" + id + |
| ", timestamp=" + timestamp + |
| '}'; |
| } |
| |
| @Override |
| public int compareTo(EventId o) { |
| return COMPARATOR.compare(this, o); |
| } |
| |
| /** {@link TypeSerializer} for {@link EventId}. */ |
| public static class EventIdSerializer extends TypeSerializerSingleton<EventId> { |
| |
| private static final long serialVersionUID = -5685733582601394497L; |
| |
| private EventIdSerializer() { |
| } |
| |
| public static final EventIdSerializer INSTANCE = new EventIdSerializer(); |
| |
| @Override |
| public boolean isImmutableType() { |
| return true; |
| } |
| |
| @Override |
| public EventId createInstance() { |
| return null; |
| } |
| |
| @Override |
| public EventId copy(EventId from) { |
| return new EventId(from.id, from.timestamp); |
| } |
| |
| @Override |
| public EventId copy(EventId from, EventId reuse) { |
| return copy(from); |
| } |
| |
| @Override |
| public int getLength() { |
| return 2 * LongSerializer.INSTANCE.getLength(); |
| } |
| |
| @Override |
| public void serialize(EventId record, DataOutputView target) throws IOException { |
| IntSerializer.INSTANCE.serialize(record.id, target); |
| LongSerializer.INSTANCE.serialize(record.timestamp, target); |
| } |
| |
| @Override |
| public EventId deserialize(DataInputView source) throws IOException { |
| int id = IntSerializer.INSTANCE.deserialize(source); |
| long timestamp = LongSerializer.INSTANCE.deserialize(source); |
| |
| return new EventId(id, timestamp); |
| } |
| |
| @Override |
| public EventId deserialize(EventId reuse, DataInputView source) throws IOException { |
| return deserialize(source); |
| } |
| |
| @Override |
| public void copy(DataInputView source, DataOutputView target) throws IOException { |
| IntSerializer.INSTANCE.copy(source, target); |
| LongSerializer.INSTANCE.copy(source, target); |
| } |
| |
| @Override |
| public boolean canEqual(Object obj) { |
| return obj.getClass().equals(EventIdSerializer.class); |
| } |
| } |
| } |