80 lines
3.1 KiB
Java
80 lines
3.1 KiB
Java
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package com.ruoyi.mill.protocol;
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import java.util.Collections;
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import java.util.LinkedHashMap;
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import java.util.Map;
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/**
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* 新协议字段定义
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* 报文格式：[4字节LE ID][4字节LE 数据长度][数据体]
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* 数据体：每个字段小端存储
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*/
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public class MillDataField {
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public enum DataType {
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I4, // 4字节有符号整数（小端）
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I2, // 2字节有符号整数（小端）
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F4 // 4字节IEEE-754单精度浮点（小端）
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}
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private final String name;
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private final String description;
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private final String unit;
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private final DataType type;
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// I4类型可含位字段：index→bitName，index→bitDescription
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private final Map<Integer, String> bitNames;
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private final Map<Integer, String> bitDescriptions;
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private MillDataField(String name, String description, String unit, DataType type,
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Map<Integer, String> bitNames, Map<Integer, String> bitDescriptions) {
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this.name = name;
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this.description = description;
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this.unit = unit;
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this.type = type;
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this.bitNames = bitNames != null ? Collections.unmodifiableMap(bitNames) : Collections.emptyMap();
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this.bitDescriptions = bitDescriptions != null ? Collections.unmodifiableMap(bitDescriptions) : Collections.emptyMap();
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}
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public static MillDataField i4(String name, String description, String unit) {
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return new MillDataField(name, description, unit, DataType.I4, null, null);
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}
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public static MillDataField i4WithBits(String name, String description,
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Map<Integer, String> bitNames,
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Map<Integer, String> bitDescriptions) {
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return new MillDataField(name, description, "", DataType.I4, bitNames, bitDescriptions);
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}
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public static MillDataField i2(String name, String description, String unit) {
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return new MillDataField(name, description, unit, DataType.I2, null, null);
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}
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public static MillDataField f4(String name, String description, String unit) {
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return new MillDataField(name, description, unit, DataType.F4, null, null);
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}
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public int byteLength() {
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return type == DataType.I2 ? 2 : 4;
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}
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public boolean hasBits() {
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return !bitNames.isEmpty();
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}
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public String getName() { return name; }
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public String getDescription() { return description; }
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public String getUnit() { return unit; }
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public DataType getType() { return type; }
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public Map<Integer, String> getBitNames() { return bitNames; }
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public Map<Integer, String> getBitDescriptions() { return bitDescriptions; }
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/** 构建位字段Map的便捷方法 */
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public static Map<Integer, String> bits(Object... indexAndName) {
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Map<Integer, String> map = new LinkedHashMap<>();
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for (int i = 0; i + 1 < indexAndName.length; i += 2) {
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map.put((Integer) indexAndName[i], (String) indexAndName[i + 1]);
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}
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return map;
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}
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}
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