Java tutorial
/*- * [LICENSE] * Taskboard * --- * Copyright (C) 2015 - 2017 Objective Solutions * --- * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * [/LICENSE] */ package objective.taskboard.controller; import static java.lang.String.format; import static java.time.temporal.ChronoField.HOUR_OF_DAY; import static java.time.temporal.ChronoField.MINUTE_OF_HOUR; import static java.util.Arrays.asList; import static objective.taskboard.utils.DateTimeUtils.determineTimeZoneId; import static org.springframework.http.HttpStatus.BAD_REQUEST; import static org.springframework.http.HttpStatus.INTERNAL_SERVER_ERROR; import static org.springframework.http.HttpStatus.OK; import java.time.LocalDate; import java.time.LocalTime; import java.time.ZoneId; import java.time.ZonedDateTime; import java.time.format.DateTimeFormatter; import java.time.format.DateTimeFormatterBuilder; import java.util.Optional; import org.apache.commons.lang3.StringUtils; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.core.io.Resource; import org.springframework.http.HttpStatus; import org.springframework.http.ResponseEntity; import org.springframework.util.ObjectUtils; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.RestController; import objective.taskboard.auth.authorizer.Authorizer; import objective.taskboard.followup.FollowUpFacade; import objective.taskboard.followup.FollowUpHistoryKeeper; import objective.taskboard.followup.FollowUpReportGenerator.InvalidTableRangeException; import objective.taskboard.followup.ProjectDatesNotConfiguredException; import objective.taskboard.followup.TemplateService; import objective.taskboard.followup.cluster.ClusterNotConfiguredException; import objective.taskboard.followup.data.Template; @RestController @RequestMapping("/ws/followup") public class FollowUpController { private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(FollowUpController.class); private static final DateTimeFormatter formatter = new DateTimeFormatterBuilder().parseCaseInsensitive() .append(DateTimeFormatter.ISO_LOCAL_DATE).appendLiteral('_').appendValue(HOUR_OF_DAY, 2) .appendLiteral(':').appendValue(MINUTE_OF_HOUR, 2).toFormatter(); @Autowired private FollowUpFacade followUpFacade; @Autowired private FollowUpHistoryKeeper historyKeeper; @Autowired private Authorizer authorizer; @Autowired private TemplateService templateService; @RequestMapping public ResponseEntity<Object> download(@RequestParam("project") String projectKey, @RequestParam("template") String template, @RequestParam("date") Optional<LocalDate> date, @RequestParam("timezone") String zoneId) { if (ObjectUtils.isEmpty(projectKey)) return new ResponseEntity<>("You must provide the project", BAD_REQUEST); if (ObjectUtils.isEmpty(template)) return new ResponseEntity<>("Template not selected", BAD_REQUEST); Template templateFollowup = templateService.getTemplate(template); if (templateFollowup == null || !authorizer.hasAnyRoleInProjects(templateFollowup.getRoles(), asList(projectKey))) return new ResponseEntity<>("Template or project doesn't exist", HttpStatus.NOT_FOUND); ZoneId timezone = determineTimeZoneId(zoneId); try { Resource resource = followUpFacade.generateReport(template, date, timezone, projectKey); String filename = "Followup_" + template + "_" + projectKey + "_" + templateDate(date, timezone) + ".xlsm"; return ResponseEntity.ok().contentLength(resource.contentLength()) .header("Content-Disposition", "attachment; filename=\"" + filename + "\"") .header("Set-Cookie", "fileDownload=true; path=/").body(resource); } catch (InvalidTableRangeException e) {//NOSONAR return ResponseEntity.badRequest().body(format( "The selected template is invalid. The range of table %s? in sheet %s? is smaller than the available data. " + "Please increase the range to cover at least row %s.", e.getTableName(), e.getSheetName(), e.getMinRows())); } catch (ClusterNotConfiguredException e) {//NOSONAR return ResponseEntity.badRequest() .body("No cluster configuration found for project " + projectKey + "."); } catch (ProjectDatesNotConfiguredException e) {//NOSONAR return ResponseEntity.badRequest() .body("The project " + projectKey + " has no start or delivery date."); } catch (Exception e) { log.warn("Error generating followup spreadsheet", e); return ResponseEntity.status(INTERNAL_SERVER_ERROR).header("Content-Type", "text/html; charset=utf-8") .body(StringUtils.defaultIfEmpty(e.getMessage(), e.toString())); } } private String templateDate(Optional<LocalDate> date, ZoneId timezone) { return date.map(d -> ZonedDateTime.of(d, LocalTime.MIDNIGHT, timezone)).orElse(ZonedDateTime.now(timezone)) .format(formatter); } @RequestMapping("generic-template") public ResponseEntity<Object> genericTemplate() { try { Resource resource = followUpFacade.getGenericTemplate(); return ResponseEntity.ok().contentLength(resource.contentLength()) .header("Content-Disposition", "attachment; filename=generic-followup-template.xlsm") .body(resource); } catch (Exception e) { log.warn("Error while serving genericTemplate", e); return new ResponseEntity<>(e.getMessage() == null ? e.toString() : e.getMessage(), INTERNAL_SERVER_ERROR); } } @RequestMapping("has-generic-template") public ResponseEntity<Boolean> hasGenericTemplate() { return new ResponseEntity<Boolean>(followUpFacade.getGenericTemplate().exists(), OK); } @RequestMapping("generate-history") public String generateHistory() { historyKeeper.generate(); return "HISTORY GENERATOR STARTED"; } }