SceneService.java 21 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530
  1. package com.huaxu.service;
  2. import com.baomidou.mybatisplus.core.metadata.IPage;
  3. import com.huaxu.common.Reflections;
  4. import com.huaxu.common.StringUtils;
  5. import com.huaxu.dao.SceneImageMapper;
  6. import com.huaxu.dao.SceneMapper;
  7. import com.huaxu.dto.AlarmDetailsDto;
  8. import com.huaxu.dto.DeviceDto;
  9. import com.huaxu.entity.DeviceSceneEntity;
  10. import com.huaxu.entity.SceneEntity;
  11. import com.huaxu.entity.SceneImageEntity;
  12. import com.huaxu.entity.SceneTypeEntity;
  13. import com.huaxu.model.AjaxMessage;
  14. import com.huaxu.model.LoginUser;
  15. import com.huaxu.model.ResultStatus;
  16. import com.huaxu.util.OrgInfoUtil;
  17. import com.huaxu.util.Snowflake;
  18. import com.huaxu.util.UserUtil;
  19. import javafx.scene.Scene;
  20. import org.apache.ibatis.annotations.Param;
  21. import org.springframework.beans.BeanUtils;
  22. import org.springframework.beans.factory.annotation.Autowired;
  23. import org.springframework.stereotype.Service;
  24. import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
  25. import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
  26. import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
  27. import javax.annotation.Resource;
  28. import org.springframework.transaction.annotation.Transactional;
  29. import java.util.*;
  30. import static com.google.common.collect.Lists.newArrayList;
  31. /**
  32. * 场景信息Service接口
  33. *
  34. * @author: WYY
  35. * @date 2020-11-17 21:15
  36. */
  37. @Service
  38. public class SceneService extends ServiceImpl<SceneMapper, SceneEntity> {
  39. @Resource
  40. private SceneMapper sceneMapper;
  41. @Resource
  42. private SceneImageService sceneImageService;
  43. @Autowired
  44. private OrgInfoUtil orgInfoUtil;
  45. @Autowired
  46. private DeviceSceneService deviceSceneService;
  47. @Autowired
  48. private AlarmDetailsService alarmDetailsService;
  49. /**
  50. * 自定义分页查询,含关联实体对像
  51. */
  52. public IPage<SceneEntity> findPage(IPage<SceneEntity> page, SceneEntity sceneEntity) {
  53. LoginUser currentUser = UserUtil.getCurrentUser();
  54. sceneEntity.setTenantId(currentUser.getTenantId());
  55. sceneEntity.setProgramItems(currentUser.getProgramItemList());
  56. sceneEntity.setUserType(currentUser.getType());
  57. //1是公司,2是公司及以下,3部门,4部门及以下,5自定义
  58. sceneEntity.setPermissonType(currentUser.getPermissonType());
  59. //分页查询父级节点的信息
  60. Page<SceneEntity> sceneEntityPage = sceneMapper.findPage(page, sceneEntity);
  61. //查询子节点的信息
  62. List<SceneEntity> sceneEntities = newArrayList();
  63. for (SceneEntity item : sceneEntityPage.getRecords()) {
  64. sceneEntities.addAll(findByParentLike(item.getId()));
  65. }
  66. for (SceneEntity item : sceneEntities) {
  67. if (item.getCompanyOrgId() != null) {
  68. item.setCompanyOrgName(orgInfoUtil.getOrgName(item.getCompanyOrgId().intValue()));
  69. }
  70. if (item.getDeptOrgId() != null) {
  71. item.setDeptOrgName(orgInfoUtil.getOrgName(item.getDeptOrgId().intValue()));
  72. }
  73. }
  74. List<SceneEntity> sceneTree = getSceneTree(sceneEntities, Long.valueOf(0), 1);
  75. sceneEntityPage.setRecords(sceneTree);
  76. return sceneEntityPage;
  77. }
  78. public static List<SceneEntity> getSceneTree(List<SceneEntity> list, Long id, Integer leve) {
  79. List<SceneEntity> temList = newArrayList();
  80. if (list != null) {
  81. for (SceneEntity sceneEntity : list) {
  82. if (id.equals(sceneEntity.getParentSceneId())) {
  83. List<SceneEntity> chidren = getSceneTree(list, sceneEntity.getId(), ++leve);
  84. SceneEntity temMeanu = new SceneEntity();
  85. BeanUtils.copyProperties(sceneEntity, temMeanu);
  86. temMeanu.setChildren(chidren);
  87. temList.add(temMeanu);
  88. leve--;
  89. }
  90. }
  91. }
  92. if (temList.size() > 0) {
  93. return temList;
  94. } else {
  95. return null;
  96. }
  97. }
  98. /**
  99. * 查列表
  100. */
  101. public List<SceneEntity> findAllList(SceneEntity sceneEntity) {
  102. LoginUser currentUser = UserUtil.getCurrentUser();
  103. sceneEntity.setTenantId(currentUser.getTenantId());
  104. sceneEntity.setProgramItems(currentUser.getProgramItemList());
  105. sceneEntity.setUserType(currentUser.getType());
  106. //1是公司,2是公司及以下,3部门,4部门及以下,5自定义
  107. sceneEntity.setPermissonType(currentUser.getPermissonType());
  108. List<SceneEntity> sceneEntities = sceneMapper.findList(sceneEntity);
  109. List<SceneEntity> sceneTree = getSceneTree(sceneEntities, Long.valueOf(0), 1);
  110. return sceneTree;
  111. }
  112. /**
  113. * 查列表
  114. */
  115. public List<SceneEntity> findList(SceneEntity sceneEntity) {
  116. LoginUser currentUser = UserUtil.getCurrentUser();
  117. sceneEntity.setTenantId(currentUser.getTenantId());
  118. sceneEntity.setProgramItems(currentUser.getProgramItemList());
  119. sceneEntity.setUserType(currentUser.getType());
  120. //1是公司,2是公司及以下,3部门,4部门及以下,5自定义
  121. sceneEntity.setPermissonType(currentUser.getPermissonType());
  122. return sceneMapper.findList(sceneEntity);
  123. }
  124. /**
  125. * 批量删除
  126. */
  127. @Transactional(rollbackFor = Exception.class)
  128. public boolean delSceneByIds(Long[] ids) {
  129. return this.removeByIds(Arrays.asList(ids));
  130. }
  131. /**
  132. * 单个删除
  133. */
  134. public boolean delSceneById(Long id) {
  135. return this.removeById(id);
  136. }
  137. /**
  138. * 保存
  139. */
  140. public boolean addScene(SceneEntity scene) {
  141. LoginUser currentUser = UserUtil.getCurrentUser();
  142. scene.setTenantId(currentUser.getTenantId());
  143. scene.setStatus(1);
  144. if (currentUser != null) {
  145. scene.setCreateBy(currentUser.getName());
  146. scene.setUpdateBy(currentUser.getName());
  147. scene.setDateUpdate(new Date());
  148. scene.setDateCreate(new Date());
  149. }
  150. if (scene.getDeptOrgId() != null && scene.getDeptOrgId() == 0) {
  151. scene.setDeptOrgId(null);
  152. }
  153. // 如果没有设置父节点,则代表为跟节点,有则获取父节点实体
  154. if (scene.getParentSceneId() == null || StringUtils.isBlank(scene.getParentSceneId().toString())) {
  155. scene.setParentSceneId(Long.valueOf(0));
  156. } else {
  157. scene.setParentSceneId(scene.getParentSceneId());
  158. }
  159. if (scene.getParentSceneId() == null) {
  160. scene.setParentSceneIds("0,");
  161. }
  162. //查询父节点信息
  163. SceneEntity sceneEntity = sceneMapper.findSceneById(scene.getParentSceneId());
  164. if (this.save(scene)) {
  165. Long id = scene.getId();
  166. // 设置新的父节点串
  167. if (sceneEntity != null) {
  168. scene.setParentSceneIds(sceneEntity.getParentSceneIds() + id + ",");
  169. } else {
  170. scene.setParentSceneIds("0," + id + ",");
  171. }
  172. sceneMapper.updateById(scene);
  173. //增加场景图片
  174. if (scene.getSceneImages() != null) {
  175. for (SceneImageEntity sceneImage : scene.getSceneImages()) {
  176. sceneImage.setCreateBy(currentUser.getName());
  177. sceneImage.setDateCreate(new Date());
  178. sceneImage.setDateUpdate(new Date());
  179. sceneImage.setSceneId(id);
  180. sceneImage.setStatus(1);
  181. sceneImage.setUpdateBy(currentUser.getName());
  182. }
  183. sceneImageService.saveBatch(scene.getSceneImages());
  184. }
  185. return true;
  186. }
  187. return false;
  188. }
  189. /**
  190. * 根据父级ID查询所有子节点及本身
  191. */
  192. public List<SceneEntity> findByParentLike(Long id) {
  193. LoginUser currentUser = UserUtil.getCurrentUser();
  194. SceneEntity scene = new SceneEntity();
  195. if (id != null) {
  196. scene.setParentSceneIds("%," + id + ",%");
  197. }
  198. scene.setTenantId(currentUser.getTenantId());
  199. scene.setStatus(1);
  200. scene.setProgramItems(currentUser.getProgramItemList());
  201. scene.setUserType(currentUser.getType());
  202. //1是公司,2是公司及以下,3部门,4部门及以下,5自定义
  203. scene.setPermissonType(currentUser.getPermissonType());
  204. List<SceneEntity> list = sceneMapper.findByParentIdsLike(scene);
  205. return list;
  206. }
  207. /**
  208. * 根据父级ID查询所有子节点及本身
  209. */
  210. public List<Long> findByParentIdsLike(Long id) {
  211. LoginUser currentUser = UserUtil.getCurrentUser();
  212. SceneEntity scene = new SceneEntity();
  213. if (id != null) {
  214. scene.setParentSceneIds("%," + id + ",%");
  215. }
  216. scene.setTenantId(currentUser.getTenantId());
  217. scene.setStatus(1);
  218. scene.setProgramItems(currentUser.getProgramItemList());
  219. scene.setUserType(currentUser.getType());
  220. //1是公司,2是公司及以下,3部门,4部门及以下,5自定义
  221. scene.setPermissonType(currentUser.getPermissonType());
  222. List<SceneEntity> list = sceneMapper.findByParentIdsLike(scene);
  223. List<Long> longs = newArrayList();
  224. for (SceneEntity item : list) {
  225. longs.add(item.getId());
  226. }
  227. return longs;
  228. }
  229. /**
  230. * 根据父级ID查询所有子节点及本身
  231. */
  232. public List<Long> findByParentIdsByCom(Long id) {
  233. LoginUser currentUser = UserUtil.getCurrentUser();
  234. SceneEntity scene = new SceneEntity();
  235. scene.setTenantId(currentUser.getTenantId());
  236. scene.setStatus(1);
  237. scene.setCompanyOrgId(id);
  238. scene.setProgramItems(currentUser.getProgramItemList());
  239. scene.setUserType(currentUser.getType());
  240. //1是公司,2是公司及以下,3部门,4部门及以下,5自定义
  241. scene.setPermissonType(currentUser.getPermissonType());
  242. List<SceneEntity> list = sceneMapper.findByParentIdsLike(scene);
  243. List<Long> longs = newArrayList();
  244. for (SceneEntity item : list) {
  245. longs.add(item.getId());
  246. }
  247. return longs;
  248. }
  249. /**
  250. * 修改根居ID
  251. */
  252. public boolean updateSceneById(SceneEntity scene) {
  253. LoginUser currentUser = UserUtil.getCurrentUser();
  254. scene.setUpdateBy(currentUser.getName());
  255. if (scene.getDeptOrgId() != null && scene.getDeptOrgId() == 0) {
  256. scene.setDeptOrgId(null);
  257. }
  258. // 获取修改前的parentIds,用于更新子节点的parentIds
  259. SceneEntity cScene = sceneMapper.findSceneById(scene.getId());
  260. String oldParentIds = cScene.getParentSceneIds();
  261. // 如果没有设置父节点,则代表为跟节点,有则获取父节点实体
  262. if (scene.getParentSceneId() == null || StringUtils.isBlank(scene.getParentSceneId().toString())) {
  263. scene.setParentSceneId(Long.valueOf(0));
  264. } else {
  265. scene.setParentSceneId(scene.getParentSceneId());
  266. }
  267. if (scene.getParentSceneId() == null) {
  268. scene.setParentSceneIds("0,");
  269. }
  270. //查询父节点信息
  271. SceneEntity sceneEntity = sceneMapper.findSceneById(scene.getParentSceneId());
  272. if (this.updateById(scene)) {
  273. // 设置新的父节点串
  274. if (sceneEntity != null) {
  275. scene.setParentSceneIds(sceneEntity.getParentSceneIds() + scene.getId() + ",");
  276. } else {
  277. scene.setParentSceneIds("0," + scene.getId() + ",");
  278. }
  279. sceneMapper.updateById(scene);
  280. // 更新子节点 parentIds
  281. Class<SceneEntity> entityClass = Reflections.getClassGenricType(getClass(), 1);
  282. SceneEntity o = null;
  283. try {
  284. o = entityClass.newInstance();
  285. } catch (Exception e) {
  286. }
  287. o.setParentSceneIds("%," + scene.getId() + ",%");
  288. List<SceneEntity> list = sceneMapper.findByParentIdsLike(o);
  289. for (SceneEntity e : list) {
  290. if (!e.getId().equals(scene.getId()) && e.getParentSceneId() != null && oldParentIds != null) {
  291. e.setParentSceneIds(e.getParentSceneIds().replace(oldParentIds, scene.getParentSceneIds()));
  292. e.setDeptOrgId(scene.getDeptOrgId());
  293. e.setCompanyOrgId(scene.getCompanyOrgId());
  294. sceneMapper.updateById(e);
  295. }
  296. }
  297. //删除之前的图片信息
  298. sceneImageService.updateBySceneId(scene.getId());
  299. //增加场景图片
  300. if (scene.getSceneImages() != null) {
  301. for (SceneImageEntity sceneImage : scene.getSceneImages()) {
  302. sceneImage.setCreateBy(currentUser.getName());
  303. sceneImage.setDateCreate(new Date());
  304. sceneImage.setDateUpdate(new Date());
  305. sceneImage.setSceneId(scene.getId());
  306. sceneImage.setStatus(1);
  307. sceneImage.setUpdateBy(currentUser.getName());
  308. }
  309. sceneImageService.saveBatch(scene.getSceneImages());
  310. }
  311. return true;
  312. }
  313. return false;
  314. }
  315. /**
  316. * 根居ID获取对象
  317. */
  318. public SceneEntity findSceneById(Long id) {
  319. SceneEntity sceneEntity = sceneMapper.findSceneById(id);
  320. SceneImageEntity sceneImageEntity = new SceneImageEntity();
  321. sceneImageEntity.setSceneId(id);
  322. List<SceneImageEntity> sceneImageEntities = sceneImageService.findList(sceneImageEntity);
  323. sceneEntity.setSceneImages(sceneImageEntities);
  324. return sceneEntity;
  325. }
  326. /**
  327. * 根居ID获取对象
  328. */
  329. public SceneEntity findSceneByIdForApp(Long id) {
  330. SceneEntity sceneEntity = sceneMapper.findSceneById(id);
  331. SceneImageEntity sceneImageEntity = new SceneImageEntity();
  332. sceneImageEntity.setSceneId(id);
  333. sceneImageEntity.setImageType(3L);
  334. List<SceneImageEntity> sceneImageEntities = sceneImageService.findList(sceneImageEntity);
  335. sceneEntity.setSceneImages(sceneImageEntities);
  336. return sceneEntity;
  337. }
  338. public List<SceneEntity> findBySceneTypeIds(Long[] Ids) {
  339. return sceneMapper.findBySceneTypeIds(Ids);
  340. }
  341. public List<SceneEntity> findByParentSceneIds(Long[] Ids) {
  342. return sceneMapper.findByParentSceneIds(Ids);
  343. }
  344. public List<SceneEntity> selectByTypeName(SceneEntity sceneEntity) {
  345. LoginUser currentUser = UserUtil.getCurrentUser();
  346. sceneEntity.setTenantId(currentUser.getTenantId());
  347. sceneEntity.setProgramItems(currentUser.getProgramItemList());
  348. sceneEntity.setUserType(currentUser.getType());
  349. //1是公司,2是公司及以下,3部门,4部门及以下,5自定义
  350. sceneEntity.setPermissonType(currentUser.getPermissonType());
  351. return sceneMapper.selectByTypeName(sceneEntity);
  352. }
  353. public List<SceneEntity> findByParentId(Long id) {
  354. SceneEntity sceneEntity = new SceneEntity();
  355. LoginUser currentUser = UserUtil.getCurrentUser();
  356. sceneEntity.setTenantId(currentUser.getTenantId());
  357. sceneEntity.setProgramItems(currentUser.getProgramItemList());
  358. sceneEntity.setUserType(currentUser.getType());
  359. //1是公司,2是公司及以下,3部门,4部门及以下,5自定义
  360. sceneEntity.setPermissonType(currentUser.getPermissonType());
  361. if (id != null) {
  362. sceneEntity.setParentSceneIds("%," + id + ",%");
  363. }
  364. List<SceneEntity> sceneEntities = sceneMapper.findByParentId(sceneEntity);
  365. for (SceneEntity item : sceneEntities) {
  366. SceneImageEntity sceneImageEntity = new SceneImageEntity();
  367. sceneImageEntity.setSceneId(item.getId());
  368. List<SceneImageEntity> sceneImageEntities = sceneImageService.findList(sceneImageEntity);
  369. item.setSceneImages(sceneImageEntities);
  370. }
  371. List<SceneEntity> sceneTree = getSceneTree(sceneEntities, Long.valueOf(0), 1);
  372. return sceneTree;
  373. }
  374. public List<SceneEntity> findByParentIdForAPP(Long id) {
  375. SceneEntity sceneEntity = new SceneEntity();
  376. LoginUser currentUser = UserUtil.getCurrentUser();
  377. sceneEntity.setTenantId(currentUser.getTenantId());
  378. sceneEntity.setProgramItems(currentUser.getProgramItemList());
  379. sceneEntity.setUserType(currentUser.getType());
  380. //1是公司,2是公司及以下,3部门,4部门及以下,5自定义
  381. sceneEntity.setPermissonType(currentUser.getPermissonType());
  382. if (id != null) {
  383. sceneEntity.setParentSceneIds("%," + id + ",%");
  384. }
  385. List<SceneEntity> sceneEntities = sceneMapper.findByParentId(sceneEntity);
  386. for (SceneEntity item : sceneEntities) {
  387. SceneImageEntity sceneImageEntity = new SceneImageEntity();
  388. sceneImageEntity.setSceneId(item.getId());
  389. sceneImageEntity.setImageType(3L);
  390. List<SceneImageEntity> sceneImageEntities = sceneImageService.findList(sceneImageEntity);
  391. item.setSceneImages(sceneImageEntities);
  392. //判断此场景是否有报警
  393. List<AlarmDetailsDto> alarmList = alarmDetailsService.selectBySceneId(item.getId().intValue());
  394. if (alarmList.size() > 0) {
  395. item.setIsAlarm(1);
  396. } else {
  397. item.setIsAlarm(0);
  398. }
  399. }
  400. List<SceneEntity> sceneTree = getSceneTree(sceneEntities, Long.valueOf(0), 1);
  401. return sceneTree;
  402. }
  403. /**
  404. * 根据场景id查询一级场景信息
  405. */
  406. public SceneEntity findParentSceneById(Long id) {
  407. return sceneMapper.findParentSceneById(id);
  408. }
  409. public void saveUpdateBatch(List<DeviceSceneEntity> deviceScenes) {
  410. //先进行查询判断哪些设备已经被保存
  411. }
  412. public List<SceneEntity> selectByTypeNameForCom(SceneEntity sceneEntity, Long companyOrgId) {
  413. LoginUser currentUser = UserUtil.getCurrentUser();
  414. if (currentUser != null) {
  415. sceneEntity.setTenantId(currentUser.getTenantId());
  416. sceneEntity.setProgramItems(currentUser.getProgramItemList());
  417. sceneEntity.setUserType(currentUser.getType());
  418. //1是公司,2是公司及以下,3部门,4部门及以下,5自定义
  419. sceneEntity.setPermissonType(currentUser.getPermissonType());
  420. }
  421. sceneEntity.setCompanyOrgId(companyOrgId);
  422. return sceneMapper.selectByTypeName(sceneEntity);
  423. }
  424. public List<Map<String,Object>> selectAlarmSceneAndDevice(SceneEntity sceneEntity, String startDate, String endDate){
  425. return sceneMapper.selectAlarmSceneAndDevice(sceneEntity, startDate, endDate);
  426. }
  427. public List<Map<String,Object>> selectMonthAlarmTimes(@Param("scene") SceneEntity sceneEntity, @Param("startDate") String startDate, @Param("endDate") String endDate,@Param("sort") int sort){
  428. String strMonth = startDate.substring(5,7);
  429. int days = getDaysByYearMonth(Integer.parseInt(strMonth));
  430. List<Map<String,Object>> result = new ArrayList<Map<String,Object>>();
  431. List<Map<String,Object>> list = sceneMapper.selectMonthAlarmTimes(sceneEntity,startDate,endDate,sort);
  432. for(int i=0; i<days; i++) {
  433. String strDate = startDate.substring(0, 7) + String.format("-%02d", i + 1);
  434. Map<String, Object> data = new HashMap<>();
  435. data.put("数量", 0);
  436. data.put("日期", strDate);
  437. data.put("序号",i+1);
  438. result.add(data);
  439. }
  440. for(int i=0;i<list.size();i++){
  441. Map<String,Object> map =list.get(i);
  442. int day = Integer.parseInt(map.get("日期").toString().substring(8,10));
  443. result.get(day-1).put("数量",map.get("数量"));
  444. }
  445. return result;
  446. }
  447. public List<Map<String,Object>> selectYearAlarmTimes(@Param("scene") SceneEntity sceneEntity, @Param("startDate") String startDate, @Param("endDate") String endDate,@Param("sort") int sort){
  448. List<Map<String,Object>> list = sceneMapper.selectMonthAlarmTimes(sceneEntity,startDate,endDate,sort);
  449. List<Map<String,Object>> result = new ArrayList<Map<String,Object>>();
  450. for(int i=0; i<12; i++) {
  451. String strDate = startDate.substring(0, 4) + String.format("-%02d", i + 1);
  452. Map<String, Object> data = new HashMap<>();
  453. data.put("数量", 0);
  454. data.put("日期", strDate);
  455. data.put("序号",i+1);
  456. result.add(data);
  457. }
  458. for(int i=0;i<list.size();i++){
  459. Map<String,Object> map =list.get(i);
  460. int month = Integer.parseInt(map.get("日期").toString().substring(5,7));
  461. result.get(month-1).put("数量",map.get("数量"));
  462. }
  463. return result;
  464. }
  465. public List<Map<String,Object>> selectAlarmLable(@Param("scene") SceneEntity sceneEntity, @Param("startDate") String startDate, @Param("endDate") String endDate){
  466. return sceneMapper.selectAlarmLable(sceneEntity,startDate,endDate);
  467. }
  468. public List<Map<String,Object>> selectAlarmDeviceIdBySenceId(int id){
  469. return sceneMapper.selectAlarmDeviceIdBySenceId(id);
  470. }
  471. /**
  472. *获取某月有多少天
  473. */
  474. private int getDaysByYearMonth(int month) {
  475. Calendar a =Calendar.getInstance();
  476. a.set(Calendar.MONTH, month- 1);
  477. a.set(Calendar.DATE, 1);
  478. a.roll(Calendar.DATE,-1);
  479. int maxDate =a.get(Calendar.DATE);
  480. return maxDate;
  481. }
  482. }