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