storm-core/src/jvm/org/apache/storm/windowing/TupleWindowImpl.java

/**
 * 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 org.apache.storm.tuple.Tuple;

import java.util.List;

/**
 * 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;

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

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

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

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

    @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;
    }
}