/*
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* Copyright (c) 2018-2028, Chill Zhuang All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* Neither the name of the dreamlu.net developer nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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* Author: Chill 庄骞 (smallchill@163.com)
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*/
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package org.springblade.core.tool.support;
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import org.springblade.core.tool.utils.Func;
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import org.springframework.util.LinkedCaseInsensitiveMap;
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import java.sql.Time;
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import java.sql.Timestamp;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* 链式map
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*
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* @author Chill
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*/
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public class Kv extends LinkedCaseInsensitiveMap<Object> {
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private Kv() {
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super();
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}
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/**
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* 创建Kv
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*
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* @return Kv
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*/
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public static Kv create() {
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return new Kv();
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}
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public static <K, V> HashMap<K, V> newMap() {
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return new HashMap<>(16);
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}
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/**
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* 设置列
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*
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* @param attr 属性
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* @param value 值
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* @return 本身
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*/
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public Kv set(String attr, Object value) {
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this.put(attr, value);
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return this;
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}
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/**
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* 设置全部
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*
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* @param map 属性
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* @return 本身
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*/
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public Kv setAll(Map<? extends String, ?> map) {
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if (map != null) {
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this.putAll(map);
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}
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return this;
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}
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/**
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* 设置列，当键或值为null时忽略
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*
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* @param attr 属性
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* @param value 值
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* @return 本身
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*/
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public Kv setIgnoreNull(String attr, Object value) {
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if (attr != null && value != null) {
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set(attr, value);
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}
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return this;
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}
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public Object getObj(String key) {
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return super.get(key);
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}
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/**
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* 获得特定类型值
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*
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* @param <T> 值类型
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* @param attr 字段名
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* @param defaultValue 默认值
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* @return 字段值
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*/
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@SuppressWarnings("unchecked")
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public <T> T get(String attr, T defaultValue) {
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final Object result = get(attr);
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return (T) (result != null ? result : defaultValue);
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}
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/**
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* 获得特定类型值
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*
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* @param attr 字段名
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* @return 字段值
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*/
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public String getStr(String attr) {
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return Func.toStr(get(attr), null);
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}
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/**
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* 获得特定类型值
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*
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* @param attr 字段名
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* @return 字段值
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*/
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public Integer getInt(String attr) {
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return Func.toInt(get(attr), -1);
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}
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/**
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* 获得特定类型值
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*
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* @param attr 字段名
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* @return 字段值
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*/
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public Long getLong(String attr) {
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return Func.toLong(get(attr), -1L);
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}
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/**
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* 获得特定类型值
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*
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* @param attr 字段名
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* @return 字段值
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*/
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public Float getFloat(String attr) {
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return Func.toFloat(get(attr), null);
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}
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public Double getDouble(String attr) {
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return Func.toDouble(get(attr), null);
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}
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/**
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* 获得特定类型值
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*
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* @param attr 字段名
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* @return 字段值
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*/
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public Boolean getBool(String attr) {
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return Func.toBoolean(get(attr), null);
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}
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/**
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* 获得特定类型值
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*
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* @param attr 字段名
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* @return 字段值
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*/
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public byte[] getBytes(String attr) {
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return get(attr, null);
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}
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/**
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* 获得特定类型值
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*
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* @param attr 字段名
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* @return 字段值
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*/
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public Date getDate(String attr) {
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return get(attr, null);
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}
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/**
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* 获得特定类型值
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*
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* @param attr 字段名
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* @return 字段值
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*/
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public Time getTime(String attr) {
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return get(attr, null);
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}
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/**
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* 获得特定类型值
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*
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* @param attr 字段名
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* @return 字段值
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*/
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public Timestamp getTimestamp(String attr) {
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return get(attr, null);
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}
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/**
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* 获得特定类型值
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*
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* @param attr 字段名
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* @return 字段值
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*/
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public Number getNumber(String attr) {
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return get(attr, null);
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}
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@Override
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public Kv clone() {
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Kv clone = new Kv();
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clone.putAll(this);
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return clone;
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}
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}
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