add paper create strategy

src/main/java/ru/ulstu/configuration/ControllersConfiguration.java

@@ -17,6 +17,8 @@ class ControllersConfiguration {
         config.addAllowedHeader("*");
         config.addAllowedMethod("GET");
         config.addAllowedMethod("POST");
+        config.addAllowedMethod("PUT");
+        config.addAllowedMethod("OPTIONAL");
         config.addAllowedMethod("DELETE");
         source.registerCorsConfiguration("/**", config);
         return new CorsFilter(source);

src/main/java/ru/ulstu/core/model/UserContainer.java

@@ -0,0 +1,9 @@
+package ru.ulstu.core.model;
+
+import ru.ulstu.user.model.User;
+
+import java.util.List;
+
+public interface UserContainer {
+    List<User> getUsers();
+}

src/main/java/ru/ulstu/core/util/DateUtils.java

@@ -43,4 +43,10 @@ public class DateUtils {
     public static Date localTimeToDate(LocalTime localTime) {
         return Date.from(localTime.atDate(LocalDate.now()).atZone(ZoneId.systemDefault()).toInstant());
     }
+
+    public static Date addDays(Date date, int count) {
+        Calendar cal = getCalendar(date);
+        cal.add(Calendar.DAY_OF_MONTH, count);
+        return cal.getTime();
+    }
 }

src/main/java/ru/ulstu/paper/controller/PaperController.java

@@ -32,7 +32,7 @@ public class PaperController {
 
     @GetMapping
     public Response<List<PaperDto>> getPapers() {
-        return new Response<>(paperService.findAll());
+        return new Response<>(paperService.findAllDto());
     }
 
     @PostMapping

src/main/java/ru/ulstu/paper/model/Paper.java

@@ -2,15 +2,17 @@ package ru.ulstu.paper.model;
 
 import org.hibernate.validator.constraints.NotBlank;
 import ru.ulstu.core.model.BaseEntity;
+import ru.ulstu.core.model.UserContainer;
 import ru.ulstu.file.model.FileData;
 import ru.ulstu.user.model.User;
 
 import javax.persistence.*;
+import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
 
 @Entity
-public class Paper extends BaseEntity {
+public class Paper extends BaseEntity implements UserContainer {
     public enum PaperStatus {
         ATTENTION("Обратить внимание"), ON_PREPARATION("На подготовке"), DRAFT("Черновик"), COMPLETED("Завершена");
 
@@ -29,27 +31,27 @@ public class Paper extends BaseEntity {
     private String title;
 
     @Enumerated(value = EnumType.STRING)
-    private PaperStatus status;
+    private PaperStatus status = PaperStatus.DRAFT;
 
     @Column(name = "create_date")
-    private Date createDate;
+    private Date createDate = new Date();
 
     @Column(name = "update_date")
-    private Date updateDate;
+    private Date updateDate = new Date();
 
     @Column(name = "deadline_date")
     private Date deadlineDate;
 
     private String comment;
 
-    private Boolean locked;
+    private Boolean locked = false;
 
     @ManyToOne
     @JoinColumn(name = "file_id")
     private FileData fileData;
 
-    @ManyToMany
-    private List<User> authors;
+    @ManyToMany(fetch = FetchType.EAGER)
+    private List<User> authors = new ArrayList<>();
 
     public PaperStatus getStatus() {
         return status;
@@ -122,4 +124,9 @@ public class Paper extends BaseEntity {
     public void setAuthors(List<User> authors) {
         this.authors = authors;
     }
+
+    @Override
+    public List<User> getUsers() {
+        return getAuthors();
+    }
 }

src/main/java/ru/ulstu/paper/service/PaperService.java

@@ -1,5 +1,6 @@
 package ru.ulstu.paper.service;
 
+import com.google.common.collect.ImmutableMap;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import ru.ulstu.file.service.FileService;
@@ -7,22 +8,24 @@ import ru.ulstu.paper.model.Paper;
 import ru.ulstu.paper.model.PaperDto;
 import ru.ulstu.paper.model.PaperStatusDto;
 import ru.ulstu.paper.repository.PaperRepository;
+import ru.ulstu.user.model.User;
 import ru.ulstu.user.model.UserDto;
 import ru.ulstu.user.service.MailService;
 
 import java.io.IOException;
 import java.util.Arrays;
+import java.util.Date;
 import java.util.List;
+import java.util.Map;
 import java.util.stream.Collectors;
 
 import static ru.ulstu.core.util.StreamApiUtils.convert;
 
 @Service
 public class PaperService {
-
+    public final MailService mailService;
     private final PaperRepository paperRepository;
     private final FileService fileService;
-    public final MailService mailService;
 
 
     public PaperService(PaperRepository paperRepository,
@@ -32,9 +35,8 @@ public class PaperService {
         this.mailService = mailService;
     }
 
-    public List<PaperDto> findAll() {
-        List<Paper> allPapers = paperRepository.findAll();
-        allPapers = allPapers.stream().sorted((paper1, paper2) -> {
+    public List<Paper> findAll() {
+        return paperRepository.findAll().stream().sorted((paper1, paper2) -> {
             int statusCompareResult =
                     Integer.valueOf(Arrays.asList(Paper.PaperStatus.values()).indexOf(paper1.getStatus()))
                             .compareTo(Integer.valueOf(Arrays.asList(Paper.PaperStatus.values()).indexOf(paper2.getStatus())));
@@ -43,7 +45,10 @@ public class PaperService {
             }
             return paper1.getTitle().compareTo(paper2.getTitle());
         }).collect(Collectors.toList());
-        return convert(allPapers, PaperDto::new);
+    }
+
+    public List<PaperDto> findAllDto() {
+        return convert(findAll(), PaperDto::new);
     }
 
     @Transactional
@@ -67,8 +72,8 @@ public class PaperService {
     @Transactional
     public Integer update(PaperDto paperDto) throws IOException {
         Paper paper = paperRepository.findOne(paperDto.getId());
-        if(paper != null && paper.getStatus() != paperDto.getStatus()){
-            sendMessageAboutStatusChange(paper.getStatus(),paperDto);
+        if (paper != null && paper.getStatus() != paperDto.getStatus()) {
+            sendMessageAboutStatusChange(paper.getStatus(), paperDto);
         }
         if (paperDto.getTmpFileName() != null && paper.getFileData() != null) {
             fileService.deleteFile(paper.getFileData());
@@ -86,14 +91,30 @@ public class PaperService {
     }
 
     public List<PaperStatusDto> getPaperStatuses() {
-        return convert(Arrays.asList(Paper.PaperStatus.values()), status ->new PaperStatusDto(status));
+        return convert(Arrays.asList(Paper.PaperStatus.values()), status -> new PaperStatusDto(status));
     }
 
-    private void sendMessageAboutStatusChange(Paper.PaperStatus oldStatus, PaperDto paper){
-        for (UserDto user: paper.getAuthors()) {
+    private void sendMessageAboutStatusChange(Paper.PaperStatus oldStatus, PaperDto paper) {
+        for (UserDto user : paper.getAuthors()) {
             mailService.sendEmail(user.getEmail(), "Обновление статуса статьи",
                     "Статус статьи " + paper.getTitle() + " сменился с " + oldStatus.getName()
                             + " на " + paper.getStatus().getName());
         }
     }
+
+    @Transactional
+    public Paper create(String title, User user, Date deadlineDate) {
+        Paper paper = new Paper();
+        paper.setTitle(title);
+        paper.getAuthors().add(user);
+        paper.setDeadlineDate(deadlineDate);
+        paper.setCreateDate(new Date());
+        paper.setUpdateDate(new Date());
+        paper.setStatus(Paper.PaperStatus.DRAFT);
+        paper = paperRepository.save(paper);
+
+        Map<String, Object> variables = ImmutableMap.of("paper", paper);
+        mailService.sendEmailFromTemplate(variables, user, "paperCreateNotification", "Создана статья");
+        return paper;
+    }
 }

src/main/java/ru/ulstu/strategy/api/EntityCreateStrategy.java

@@ -0,0 +1,28 @@
+package ru.ulstu.strategy.api;
+
+import ru.ulstu.core.model.UserContainer;
+import ru.ulstu.user.model.User;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public abstract class EntityCreateStrategy<T extends UserContainer> {
+    protected abstract List<T> getActiveEntities();
+
+    protected abstract void createEntity(User user);
+
+    protected void createDefaultEntityIfNeed(List<User> allUsers, List<? extends UserContainer> entities) {
+        allUsers.forEach(user -> {
+            if (entities
+                    .stream()
+                    .filter(entity -> entity.getUsers().contains(user))
+                    .collect(Collectors.toSet()).isEmpty()) {
+                createEntity(user);
+            }
+        });
+    }
+
+    public void createEntityIfNeed(List<User> allUsers) {
+        createDefaultEntityIfNeed(allUsers, getActiveEntities());
+    }
+}

src/main/java/ru/ulstu/strategy/api/PaperCreateStrategy.java

@@ -0,0 +1,35 @@
+package ru.ulstu.strategy.api;
+
+import org.springframework.stereotype.Service;
+import ru.ulstu.core.util.DateUtils;
+import ru.ulstu.paper.model.Paper;
+import ru.ulstu.paper.service.PaperService;
+import ru.ulstu.user.model.User;
+import ru.ulstu.user.service.UserService;
+
+import java.util.Date;
+import java.util.List;
+
+@Service
+public class PaperCreateStrategy extends EntityCreateStrategy<Paper> {
+    private static final String DEFAULT_NAME = "Статья создана автоматически";
+    private static final int DEFAULT_DEADLINE_DAYS = 14;
+    private final PaperService paperService;
+    private final UserService userService;
+
+    public PaperCreateStrategy(PaperService paperService,
+                               UserService userService) {
+        this.paperService = paperService;
+        this.userService = userService;
+    }
+
+    @Override
+    protected List<Paper> getActiveEntities() {
+        return paperService.findAll();
+    }
+
+    @Override
+    protected void createEntity(User user) {
+        paperService.create(DEFAULT_NAME, user, DateUtils.addDays(new Date(), DEFAULT_DEADLINE_DAYS));
+    }
+}

src/main/java/ru/ulstu/strategy/api/StrategyEntityCreateExecutor.java

@@ -0,0 +1,26 @@
+package ru.ulstu.strategy.api;
+
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Service;
+import ru.ulstu.user.service.UserService;
+
+import java.util.List;
+
+@Service
+public class StrategyEntityCreateExecutor {
+    private final List<EntityCreateStrategy> entityCreateStrategies;
+    private final UserService userService;
+
+    public StrategyEntityCreateExecutor(List<EntityCreateStrategy> entityCreateStrategies,
+                                        UserService userService) {
+        this.entityCreateStrategies = entityCreateStrategies;
+        this.userService = userService;
+    }
+
+
+    //@Scheduled(cron = "0 0 8 * * *")
+    @Scheduled(cron = "0 */5 * * * *")
+    public void scheduleExecuteStrategies() {
+        entityCreateStrategies.forEach(strategy -> strategy.createEntityIfNeed(userService.findAll()));
+    }
+}

src/main/java/ru/ulstu/user/service/UserService.java

@@ -77,6 +77,11 @@ public class UserService implements UserDetailsService {
         return new PageableItems<>(page.getTotalElements(), userMapper.userEntitiesToUserListDtos(page.getContent()));
     }
 
+    // TODO: read only active users
+    public List<User> findAll() {
+        return userRepository.findAll();
+    }
+
     @Transactional(readOnly = true)
     public PageableItems<UserRoleDto> getUserRoles() {
         final List<UserRoleDto> roles = userRoleRepository.findAll().stream()

src/main/resources/application.properties

@@ -16,8 +16,8 @@ logging.level.ru.ulstu=DEBUG
 # Mail Settings
 spring.mail.host=smtp.yandex.ru
 spring.mail.port=465
-spring.mail.username=balance@soft.kitchen
-spring.mail.password=fkvfpbalance
+spring.mail.username=nio17.ulstu@yandex.ru
+spring.mail.password=nio17.ulstu.ru
 spring.mail.properties.mail.smtp.auth=true
 spring.mail.properties.mail.smtp.ssl.enable=true
 spring.mail.properties.mail.smtp.socketFactory.class=javax.net.ssl.SSLSocketFactory

src/main/resources/mail_templates/paperCreateNotification.html

@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html xmlns:th="http://www.thymeleaf.org">
+<head>
+    <title>Уведомление о создании статьи</title>
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="shortcut icon" th:href="@{|${baseUrl}/favicon.ico|}"/>
+</head>
+<body>
+<p>
+    Уважаемый(ая) <span th:text="${user.firstName + ' ' + user.lastName}">Ivan Ivanov</span>
+</p>
+<p>
+    Вам нужно поработать над статьей "<span th:text="${paper.title}">Title</span>".
+</p>
+<p>
+    Срок исполнения: <span th:text="${#dates.format(paper.deadlineDate, 'dd.MM.yyyy HH:mm')}"></span>.
+</p>
+<p>
+    Regards,
+    <br/>
+    <em>NG-tracker.</em>
+</p>
+</body>
+</html>