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Swirlds is a software platform designed to build fully-distributed applications that harness the power of the cloud without servers. Now you can develop applications with fairness in decision making, speed, trust and reliability, at a fraction of the cost of traditional server-based platforms.

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/*
 * Copyright (C) 2016-2024 Hedera Hashgraph, LLC
 *
 * 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 com.swirlds.virtualmap.internal.reconnect;

import static com.swirlds.virtualmap.internal.Path.INVALID_PATH;

import com.swirlds.virtualmap.internal.VirtualStateAccessor;

public class ReconnectState implements VirtualStateAccessor {
    private long firstLeafPath;
    private long lastLeafPath;

    public ReconnectState(long firstLeafPath, long lastLeafPath) {
        this.firstLeafPath = firstLeafPath;
        this.lastLeafPath = lastLeafPath;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String getLabel() {
        throw new UnsupportedOperationException("Not called");
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public long getFirstLeafPath() {
        return firstLeafPath;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public long getLastLeafPath() {
        return lastLeafPath;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void setFirstLeafPath(final long path) {
        this.firstLeafPath = path;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void setLastLeafPath(final long path) {
        this.lastLeafPath = path;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public long size() {
        return lastLeafPath == INVALID_PATH ? 0 : (lastLeafPath - firstLeafPath + 1);
    }
}