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BitTorrent Client Library (Core)

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/*
 * Copyright (c) 2016—2017 Andrei Tomashpolskiy and individual contributors.
 *
 * 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 bt.torrent.messaging;

import bt.data.Bitfield;

import java.util.function.Predicate;

public class IncompletePiecesValidator implements Predicate {

    private Bitfield bitfield;

    public IncompletePiecesValidator(Bitfield bitfield) {
        this.bitfield = bitfield;
    }

    @Override
    public boolean test(Integer pieceIndex) {
        return !isComplete(pieceIndex);
    }

    private boolean isComplete(Integer pieceIndex) {
        Bitfield.PieceStatus pieceStatus = bitfield.getPieceStatus(pieceIndex);
        return pieceStatus == Bitfield.PieceStatus.COMPLETE || pieceStatus == Bitfield.PieceStatus.COMPLETE_VERIFIED;
    }
}