/**
 * 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.storm.windowing;

import java.util.List;
import org.apache.storm.tuple.Tuple;

/**
 * Holds the expired, new and current tuples in a window.
 */
public class TupleWindowImpl implements TupleWindow {
    private final List<Tuple> tuples;
    private final List<Tuple> newTuples;
    private final List<Tuple> expiredTuples;
    private final Long startTimestamp;
    private final Long endTimestamp;

    public TupleWindowImpl(List<Tuple> tuples, List<Tuple> newTuples, List<Tuple> expiredTuples) {
        this(tuples, newTuples, expiredTuples, null, null);
    }

    public TupleWindowImpl(List<Tuple> tuples, List<Tuple> newTuples, List<Tuple> expiredTuples,
                           Long startTimestamp, Long endTimestamp) {
        this.tuples = tuples;
        this.newTuples = newTuples;
        this.expiredTuples = expiredTuples;
        this.startTimestamp = startTimestamp;
        this.endTimestamp = endTimestamp;
    }

    @Override
    public List<Tuple> get() {
        return tuples;
    }

    @Override
    public List<Tuple> getNew() {
        return newTuples;
    }

    @Override
    public List<Tuple> getExpired() {
        return expiredTuples;
    }

    @Override
    public Long getStartTimestamp() {
        return startTimestamp;
    }

    @Override
    public Long getEndTimestamp() {
        return endTimestamp;
    }

    @Override
    public String toString() {
        return "TupleWindowImpl{" +
               "tuples=" + tuples +
               ", newTuples=" + newTuples +
               ", expiredTuples=" + expiredTuples +
               '}';
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        TupleWindowImpl that = (TupleWindowImpl) o;

        if (tuples != null ? !tuples.equals(that.tuples) : that.tuples != null) {
            return false;
        }
        if (newTuples != null ? !newTuples.equals(that.newTuples) : that.newTuples != null) {
            return false;
        }
        return expiredTuples != null ? expiredTuples.equals(that.expiredTuples) : that.expiredTuples == null;

    }

    @Override
    public int hashCode() {
        int result = tuples != null ? tuples.hashCode() : 0;
        result = 31 * result + (newTuples != null ? newTuples.hashCode() : 0);
        result = 31 * result + (expiredTuples != null ? expiredTuples.hashCode() : 0);
        return result;
    }
}
