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/*
 *  Copyright 1999-2019 Seata.io Group.
 *
 *  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 io.seata.core.model;


import io.seata.common.exception.ShouldNeverHappenException;

/**
 * Status of lock.
 *
 * @author funkye
 */
public enum LockStatus {

    /**
     * The Locked.
     * description: Locked
     */
    Locked(0),

    /**
     * The Rollbacking.
     * description: Rollbacking
     */
    Rollbacking(1);

    private final int code;

    LockStatus(int code) {
        this.code = code;
    }

    /**
     * Get lock status.
     *
     * @param code the code
     * @return the lock status
     */
    public static LockStatus get(byte code) {
        return get((int)code);
    }

    /**
     * Get lock status.
     *
     * @param code the code
     * @return the lock status
     */
    public static LockStatus get(int code) {
        LockStatus value;
        try {
            value = LockStatus.values()[code];
        } catch (Exception e) {
            throw new ShouldNeverHappenException("Unknown LockStatus[" + code + "]");
        }
        return value;
    }

    /**
     * Gets code.
     *
     * @return the code
     */
    public int getCode() {
        return code;
    }

}