com.github.xingshuangs.iot.protocol.s7.model.StartUploadParameter Maven / Gradle / Ivy

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/*
 * MIT License
 *
 * Copyright (c) 2021-2099 Oscura (xingshuang) 
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.github.xingshuangs.iot.protocol.s7.model;


import com.github.xingshuangs.iot.common.buff.ByteReadBuff;
import com.github.xingshuangs.iot.protocol.s7.enums.EDestinationFileSystem;
import com.github.xingshuangs.iot.protocol.s7.enums.EFileBlockType;
import com.github.xingshuangs.iot.protocol.s7.enums.EFunctionCode;
import com.github.xingshuangs.iot.utils.BooleanUtil;
import lombok.Data;
import lombok.EqualsAndHashCode;

/**
 * 开始上传参数
 *
 * @author xingshuang
 */
@EqualsAndHashCode(callSuper = true)
@Data
public class StartUploadParameter extends DownloadParameter {

    public StartUploadParameter() {
        this.functionCode = EFunctionCode.START_UPLOAD;
        this.errorCode = new byte[]{0x00, 0x00};
    }

    public static StartUploadParameter createDefault(EFileBlockType blockType,
                                                     int blockNumber,
                                                     EDestinationFileSystem destinationFileSystem) {
        StartUploadParameter parameter = new StartUploadParameter();
        parameter.blockType = blockType;
        parameter.blockNumber = blockNumber;
        parameter.destinationFileSystem = destinationFileSystem;
        return parameter;
    }

    /**
     * 字节数组数据解析
     *
     * @param data 字节数组数据
     * @return StartUploadParameter
     */
    public static StartUploadParameter fromBytes(final byte[] data) {
        return fromBytes(data, 0);
    }

    /**
     * 字节数组数据解析
     *
     * @param data   字节数组数据
     * @param offset 偏移量
     * @return StartUploadParameter
     */
    public static StartUploadParameter fromBytes(final byte[] data, final int offset) {
        if (data.length < 18) {
            throw new IndexOutOfBoundsException("DownloadParameter, data length < 18");
        }
        ByteReadBuff buff = new ByteReadBuff(data, offset);
        StartUploadParameter res = new StartUploadParameter();
        res.functionCode = EFunctionCode.from(buff.getByte());
        byte b = buff.getByte();
        res.moreDataFollowing = BooleanUtil.getValue(b, 0);
        res.errorStatus = BooleanUtil.getValue(b, 1);
        res.errorCode = buff.getBytes(2);
        res.id = buff.getUInt32();
        res.fileNameLength = buff.getByteToInt();
        res.fileIdentifier = buff.getString(1);
        res.blockType = EFileBlockType.from(buff.getString(2));
        res.blockNumber = Integer.parseInt(buff.getString(5));
        res.destinationFileSystem = EDestinationFileSystem.from(buff.getByte());
        return res;
    }
}