AdmQueryCriteriaHelper.java 12 KB

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  1. package com.persagy.proxy.adm.utils;
  2. import cn.hutool.core.map.MapUtil;
  3. import cn.hutool.core.util.ArrayUtil;
  4. import cn.hutool.core.util.StrUtil;
  5. import com.baomidou.mybatisplus.core.metadata.OrderItem;
  6. import com.fasterxml.jackson.databind.JsonNode;
  7. import com.fasterxml.jackson.databind.node.ArrayNode;
  8. import com.fasterxml.jackson.databind.node.JsonNodeFactory;
  9. import com.fasterxml.jackson.databind.node.ObjectNode;
  10. import com.persagy.dmp.basic.model.QueryCriteria;
  11. import com.persagy.dmp.basic.model.QueryOperator;
  12. import com.persagy.dmp.common.model.entity.BaseEntity;
  13. import com.persagy.proxy.adm.constant.enums.ValidEnum;
  14. import com.persagy.proxy.adm.request.AdmQueryCriteria;
  15. import java.math.BigDecimal;
  16. import java.util.ArrayList;
  17. import java.util.HashMap;
  18. import java.util.List;
  19. import java.util.Map;
  20. /**
  21. * ADM通用查询条件
  22. * @author Charlie Yu
  23. * @date 2021-08-16
  24. */
  25. public class AdmQueryCriteriaHelper {
  26. /** 条件匹配字符串 */
  27. private static final String[] COND_STR = {" = "," != "," > "," >= "," < "," <= "," in "," isnull "," contain "," startwith "," endwith "};
  28. /** 条件匹配字符串 根据ADM实际调用查看,去掉空格*/
  29. private static final String[] COND_STR_TRIM = {"=","!=",">",">=","<","<=","in","isnull","contain","startwith","endwith"};
  30. /** 需要替换的字段对照 Map<AdmQueryCriteria.name, Map<AdmFieldName, DmpFieldName> */
  31. private static Map<String, Map<String, String>> RENAME_MAP = new HashMap<>(16);
  32. /** 与数据中台的操作参数对照 */
  33. private static Map<String, String> OPERATOR_MAP = new HashMap<>();
  34. static {
  35. OPERATOR_MAP.put("!=", "$ne");
  36. OPERATOR_MAP.put(">", "$gt");
  37. OPERATOR_MAP.put(">=", "$gte");
  38. OPERATOR_MAP.put("<", "$lt");
  39. OPERATOR_MAP.put("<=", "$lte");
  40. OPERATOR_MAP.put("in", "$in");
  41. OPERATOR_MAP.put("contain", "$like");
  42. OPERATOR_MAP.put("startwith", "$likeLeft");
  43. OPERATOR_MAP.put("endwith", "$likeRight");
  44. }
  45. /**
  46. * 将ADM的查询条件转换为DMP的
  47. * 调用前注意:
  48. * - 调用前将name赋值,才会将条件中adm的属性替换为dmp的属性
  49. * - 统计查询时将isOnlyCount设置为true
  50. * 调用后注意(需要调用者自行处理的):
  51. * - 不处理级联,级联应在调用者里处理级联调用转换后查询赋值
  52. * - 不处理projection,查询后自行根据projection筛选返回属性。(dmp只能指定扩展属性,而adm的是针对所有属性的)
  53. * @param admCriteria
  54. * @return
  55. */
  56. public static QueryCriteria toDmpCriteria(AdmQueryCriteria admCriteria) {
  57. QueryCriteria dmpCriteria = new QueryCriteria();
  58. // 拷贝分页
  59. copyPageInfo(admCriteria, dmpCriteria);
  60. // 处理filters
  61. ObjectNode criteria = toCriteria(admCriteria.getName(), admCriteria.getFilters());
  62. dmpCriteria.setCriteria(criteria);
  63. if(StrUtil.isNotEmpty(admCriteria.getName())){
  64. // 处理name
  65. criteria.put("objType", admCriteria.getName());
  66. }
  67. // 补充valid = 1
  68. if(!criteria.has(BaseEntity.PROP_VALID)) {
  69. criteria.put(BaseEntity.PROP_VALID, ValidEnum.TRUE.getValue());
  70. }
  71. // 补充关系条件
  72. if(admCriteria.getRelationFrom() != null) {
  73. criteria.set(QueryOperator.RELATION_FROM.getIndex(), admCriteria.getRelationFrom());
  74. }
  75. if(admCriteria.getRelationTo() != null) {
  76. criteria.set(QueryOperator.RELATION_TO.getIndex(), admCriteria.getRelationTo());
  77. }
  78. // 处理排序
  79. dmpCriteria.setOrders(toOrderItem(admCriteria.getOrders()));
  80. // 处理统计
  81. dmpCriteria.setOnlyCount(admCriteria.isOnlyCount());
  82. return dmpCriteria;
  83. }
  84. /**
  85. * 处理分页信息
  86. * @param admCriteria
  87. * @param dmpCriteria
  88. */
  89. public static void copyPageInfo(AdmQueryCriteria admCriteria, QueryCriteria dmpCriteria) {
  90. // 页码
  91. Integer pageNumber = admCriteria.getPageNumber();
  92. if(pageNumber == null || pageNumber < 1) {
  93. pageNumber = 1;
  94. }
  95. dmpCriteria.setPage(pageNumber.longValue());
  96. // 条数
  97. Integer pageSize = admCriteria.getPageSize();
  98. if(pageSize == null || pageSize > admCriteria.getMaxRow()) {
  99. pageSize = admCriteria.getMaxRow();
  100. }
  101. dmpCriteria.setSize(pageSize.longValue());
  102. }
  103. /**
  104. * 排序字符串转换为对象
  105. * @param orderStr
  106. */
  107. public static List<OrderItem> toOrderItem(String orderStr) {
  108. if(StrUtil.isBlank(orderStr)) {
  109. return null;
  110. }
  111. // 按,分隔
  112. String[] orders = StrUtil.split(orderStr, ",");
  113. List<OrderItem> orderList = new ArrayList<>();
  114. for(String order:orders) {
  115. // 按空格分隔
  116. String[] items = StrUtil.split(order, " ");
  117. // 去除空串
  118. items = ArrayUtil.removeEmpty(items);
  119. if(ArrayUtil.isEmpty(items)) {
  120. continue;
  121. }
  122. OrderItem orderItem = new OrderItem();
  123. // 第一位为排序字段
  124. orderItem.setColumn(items[0].trim());
  125. // 只有一位 或 第二位不是desc 表示为升序
  126. orderItem.setAsc(items.length <= 1 || !"desc".equalsIgnoreCase(items[1]));
  127. orderList.add(orderItem);
  128. }
  129. return orderList;
  130. }
  131. /**
  132. * 将ADM过滤条件转换为DMP查询
  133. * 由于数据中台不支持or条件,因此不能转换为中台的KV条件形式,只能转换为sql
  134. * @param filters
  135. * @return
  136. */
  137. public static ObjectNode toCriteria(String name, String filters) {
  138. ObjectNode criteria = JsonNodeFactory.instance.objectNode();
  139. // filters格式参考:http://doc.sagacloud.cn/doc/service/dev/lib/web/filters.html#%E8%BF%87%E6%BB%A4%E6%9D%A1%E4%BB%B6
  140. if(StrUtil.isBlank(filters)) {
  141. return criteria;
  142. }
  143. // 替换逻辑运算符: && || ;
  144. filters = StrUtil.replace(filters, "&&", " and ");
  145. filters = StrUtil.replace(filters, "||", " or ");
  146. filters = StrUtil.replace(filters, ";", " and ");
  147. // 处理[]
  148. filters = StrUtil.replace(filters, "[", " ( ");
  149. filters = StrUtil.replace(filters, "]", " ) ");
  150. // 查找下一个 连接点[and or为连接点]
  151. ensureOrCondition(name, criteria, filters);
  152. return criteria;
  153. }
  154. /**
  155. * 从or条件中截取表达式
  156. * @param criteria
  157. * @param filters
  158. */
  159. private static void ensureOrCondition(String name, ObjectNode criteria, String filters) {
  160. int orIndex = StrUtil.indexOfIgnoreCase(filters, " or ", 0);
  161. String orLeft = orIndex < 0 ? filters : StrUtil.subPre(filters, orIndex);
  162. ensureAndCondition(name, criteria, orLeft);
  163. // 有or条件
  164. if(orIndex >= 0) {
  165. String orRight = StrUtil.subSuf(filters, orIndex + 4);
  166. ObjectNode node = criteria.putObject("$or");
  167. // 右侧字符串继续递归处理
  168. ensureOrCondition(name, node, orRight);
  169. }
  170. }
  171. /**
  172. * 从and条件中截取表达式
  173. * @param criteria
  174. * @param filters
  175. */
  176. private static void ensureAndCondition(String name, ObjectNode criteria, String filters) {
  177. int andIndex = StrUtil.indexOfIgnoreCase(filters, " and ", 0);
  178. String andLeft = andIndex < 0 ? filters : StrUtil.subPre(filters, andIndex);
  179. // 处理左侧条件
  180. ensureAndExpress(name, criteria, andLeft);
  181. // 处理右侧条件
  182. if(andIndex >= 0) {
  183. String andRight = StrUtil.subSuf(filters, andIndex+5);
  184. // 递归处理and
  185. ensureAndCondition(name, criteria, andRight);
  186. }
  187. }
  188. /**
  189. * 处理表达式
  190. * @param criteria
  191. * @param express
  192. */
  193. private static void ensureAndExpress(String name, ObjectNode criteria, String express) {
  194. String cond = StrUtil.isBlank(StrUtil.getContainsStr(express, COND_STR)) ? StrUtil.getContainsStr(express, COND_STR_TRIM) : StrUtil.getContainsStr(express, COND_STR);
  195. if(StrUtil.isBlank(cond)) {
  196. return;
  197. }
  198. int condIndex = StrUtil.indexOfIgnoreCase(express, cond, 0);
  199. String condLeft = StrUtil.subPre(express, condIndex).trim();
  200. String condRight = StrUtil.subSuf(express, condIndex+cond.length()).trim();
  201. addCondition(name, criteria, condLeft, cond.trim(), condRight);
  202. }
  203. /**
  204. * 拼接条件
  205. * @param criteria
  206. * @param column
  207. * @param operator
  208. * @param value
  209. */
  210. private static void addCondition(String name, ObjectNode criteria, String column, String operator, String value) {
  211. // 20211015 移除列名中的infos.
  212. column = StrUtil.replaceIgnoreCase(column, "infos.", "");
  213. // 替换列名
  214. column = replaceColumns(name, column);
  215. if("=".equals(operator)) {
  216. criteria.set(column, getJsonNode(criteria, value));
  217. } else if("in".equals(operator)) {
  218. // 按,分隔
  219. String[] splits = StrUtil.split(value, ",");
  220. if(ArrayUtil.isEmpty(splits)) {
  221. return;
  222. }
  223. ArrayNode node = criteria.putArray(column);
  224. for(String split:splits) {
  225. // 去掉所有的() 即为值
  226. split = StrUtil.removeAll(split, '(',')');
  227. node.add(getJsonNode(criteria, split.trim()));
  228. }
  229. } else if("isnull".equals(operator)) {
  230. boolean ifNot = true;
  231. if(column.indexOf("not") >= 0){
  232. ifNot = false;
  233. column = column.split(" ")[1];
  234. }
  235. ObjectNode node = criteria.putObject(column);
  236. node.put("$null", ifNot);
  237. } else {
  238. ObjectNode node = criteria.putObject(column);
  239. node.set(OPERATOR_MAP.get(operator), getJsonNode(node, value));
  240. }
  241. }
  242. /**
  243. * 取Json值对象
  244. * @param criteria
  245. * @param value
  246. * @return
  247. */
  248. private static JsonNode getJsonNode(ObjectNode criteria, String value) {
  249. if(StrUtil.isBlank(value)) {
  250. return criteria.nullNode();
  251. }
  252. // 字符串
  253. if(StrUtil.startWith(value, "'") && StrUtil.endWith(value, "'")) {
  254. return criteria.textNode(StrUtil.sub(value, 1, value.length()-1));
  255. }
  256. // 数值
  257. if (StrUtil.contains(value, ".")) {
  258. try {
  259. BigDecimal no = new BigDecimal(value);
  260. return criteria.numberNode(no);
  261. } catch (NumberFormatException e) {
  262. }
  263. }
  264. // 整型
  265. try {
  266. Integer no = Integer.valueOf(value);
  267. return criteria.numberNode(no);
  268. } catch (NumberFormatException e) {
  269. }
  270. return criteria.nullNode();
  271. }
  272. /**
  273. * 替换属性称名
  274. * @param name
  275. * @param column
  276. * @return
  277. */
  278. private static String replaceColumns(String name, String column) {
  279. Map<String, String> fieldMap = getRenameFields(name);
  280. // 没有对照则使用原本的
  281. if(MapUtil.isEmpty(fieldMap) || !fieldMap.containsKey(column)) {
  282. return column;
  283. }
  284. return fieldMap.get(column);
  285. }
  286. /**
  287. * 获取更名对照
  288. * @param name
  289. * @return
  290. */
  291. private static Map<String, String> getRenameFields(String name) {
  292. // 获取通用对照
  293. Map<String, String> commonMap = getRenameMap().get("COMMON");
  294. // 获取此类型的对照
  295. Map<String, String> nameMap = getRenameMap().get(name);
  296. if(MapUtil.isEmpty(nameMap)) {
  297. return commonMap;
  298. }
  299. Map<String, String> rsMap = new HashMap<>();
  300. rsMap.putAll(commonMap);
  301. rsMap.putAll(nameMap);
  302. return rsMap;
  303. }
  304. /**
  305. * 获取通用Map
  306. * @return
  307. */
  308. private static Map<String, Map<String, String>> getRenameMap() {
  309. if(MapUtil.isEmpty(RENAME_MAP)) {
  310. // COMMON表示通用对照
  311. Map<String, String> commonMap = new HashMap<>();
  312. commonMap.put("createTime", "creationTime");
  313. commonMap.put("lastUpdate", "modifiedTime");
  314. RENAME_MAP.put("COMMON", commonMap);
  315. }
  316. return RENAME_MAP;
  317. }
  318. }