Feat: FileManager Class 추가

src/main/java/com/mergedoc/backend/filemanage/dto/CreateDIRForm.java

@@ -0,0 +1,18 @@
+package com.mergedoc.backend.filemanage.dto;
+
+import com.sun.istack.NotNull;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class CreateDIRForm {
+    @NotNull
+    private Long dirId;
+    @NotNull
+    private String name;
+
+    private Long memberId;
+}

src/main/java/com/mergedoc/backend/filemanage/dto/CreatePageForm.java

@@ -0,0 +1,18 @@
+package com.mergedoc.backend.filemanage.dto;
+
+import com.sun.istack.NotNull;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class CreatePageForm {
+    @NotNull
+    private Long dirId;
+    @NotNull
+    private String name;
+
+    private Long memberId;
+}

src/main/java/com/mergedoc/backend/filemanage/dto/FindFilesInDIRForm.java

@@ -0,0 +1,18 @@
+package com.mergedoc.backend.filemanage.dto;
+
+import com.mergedoc.backend.dir.entity.FileType;
+import com.sun.istack.NotNull;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class FindFilesInDIRForm {
+    @NotNull
+    private Long dirId;
+
+    private FileType type;
+    private Long memberId;
+}

src/main/java/com/mergedoc/backend/filemanage/dto/FindPageForm.java

@@ -0,0 +1,16 @@
+package com.mergedoc.backend.filemanage.dto;
+
+import com.sun.istack.NotNull;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class FindPageForm {
+    @NotNull
+    private Long pageId;
+    @NotNull
+    private Long memberId;
+}

src/main/java/com/mergedoc/backend/filemanage/service/FileManager.java

@@ -0,0 +1,160 @@
+package com.mergedoc.backend.filemanage.service;
+
+import com.mergedoc.backend.dir.entity.DIR;
+import com.mergedoc.backend.dir.entity.InDIR;
+import com.mergedoc.backend.dir.entity.PageInDIR;
+import com.mergedoc.backend.dir.repository.DIRRepository;
+import com.mergedoc.backend.filemanage.dto.CreateDIRForm;
+import com.mergedoc.backend.filemanage.dto.CreatePageForm;
+import com.mergedoc.backend.filemanage.dto.FindFilesInDIRForm;
+import com.mergedoc.backend.filemanage.dto.FindPageForm;
+import com.mergedoc.backend.member.entity.Member;
+import com.mergedoc.backend.member.repository.MemberRepository;
+import com.mergedoc.backend.page.entity.Page;
+import com.mergedoc.backend.page.repository.PageRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Service
+@RequiredArgsConstructor
+@Transactional(readOnly = true)
+public class FileManager {
+
+    private final String ROOT_PATH = "/";
+    private final String ROOT_NAME = "root";
+
+    private final PageRepository pageRepository;
+    private final DIRRepository dirRepository;
+    private final MemberRepository memberRepository;
+
+    @Transactional
+    public Long createRootDIR(Long memberId) {
+        Member findMember = memberRepository.findById(memberId);
+
+        DIR dir = DIR.builder()
+                .path(ROOT_PATH)
+                .name(ROOT_NAME)
+                .member(findMember)
+                .build();
+
+        dirRepository.saveDIR(dir);
+        return dir.getId();
+    }
+
+    // dir 내부에 있는 file 을 찾는데 찾으려는 파일들의 생성 유저가 요청 유저 정보랑 다르면 예외
+    public List<DIR> findDIRsInDIR(FindFilesInDIRForm form) {
+        List<DIR> dirs = dirRepository.findDIRsInDIR(form.getDirId());
+
+        dirs.stream().findFirst().ifPresent(d -> validateDirOwner(form.getMemberId(), d));
+
+        return dirs;
+    }
+    public List<PageInDIR> findPagesInDIR(FindFilesInDIRForm form) {
+        List<PageInDIR> pages = dirRepository.findPagesInDIR(form.getDirId());
+
+        pages.stream().findFirst().ifPresent(p -> validatePageOwner(form.getMemberId(), p));
+
+        return pages;
+    }
+
+    /* Member 가입 시 생성되는 Root DIR*/
+
+    public List<InDIR> findAllFiles(FindFilesInDIRForm form) {
+        List<InDIR> result = new ArrayList<>();
+        result.addAll(findDIRsInDIR(form));
+        result.addAll(findPagesInDIR(form));
+
+        return result;
+//        각 파일들에 대해서 type 을 포함해서 데이터로 돌려줄 수 있어야함
+    }
+
+    @Transactional
+    public Long createDIR(CreateDIRForm form) {
+        DIR parentDir = dirRepository.findDIRById(form.getDirId());
+
+//        생성하려는 dir 의 소유자가 요청 유저와 일치해야한다
+        validateDirOwner(form.getMemberId(), parentDir);
+        validateDirDuplicated(form.getDirId(), form.getName());
+
+//        member id 만 저장하면 되는데 select 한 개가 더 나간다,, 이 부분은 개선이 필요한듯, JpaRepository getOne 혹은 직접 쿼리문 작성
+        Member member = memberRepository.findById(form.getMemberId());
+
+        DIR dir = DIR.builder()
+                .parent(parentDir)
+                .path(producePathFromParentDIR(parentDir.getPath(), parentDir.getName()))
+                .name(form.getName())
+                .member(member)
+                .build();
+
+        dirRepository.saveDIR(dir);
+
+        return dir.getId();
+    }
+
+    @Transactional
+    public Long createPage(CreatePageForm form) {
+        DIR dir = dirRepository.findDIRById(form.getDirId());
+
+        validateDirOwner(form.getMemberId(), dir);
+        validatePageDuplicated(dir.getId(), form.getName());
+
+        Member member = memberRepository.findById(form.getMemberId());
+
+        Page page = Page.builder()
+                .name(form.getName())
+                .build();
+        pageRepository.savePage(page);
+
+        PageInDIR pageInDIR = PageInDIR.builder()
+                .page(page)
+                .dir(dir)
+                .member(member)
+                .path(producePathFromParentDIR(dir.getPath(), dir.getName()))
+                .name(form.getName())
+                .build();
+        dirRepository.savePageInDIR(pageInDIR);
+
+        return pageInDIR.getId();
+    }
+
+    public Page findPage(FindPageForm form) {
+        PageInDIR findPage = dirRepository.findPageById(form.getPageId());
+
+        validatePageOwner(form.getMemberId(), findPage);
+
+        return pageRepository.findPageById(findPage.getPage().getId());
+    }
+
+
+
+    private String producePathFromParentDIR(String path, String name) {
+        return path + name + "/";
+    }
+
+    private void validateDirOwner(Long memberId, DIR dir) {
+        if(!dir.getMember().getId().equals(memberId)) {
+            throw new IllegalStateException("올바르지 않은 접근입니다.");
+        }
+    }
+
+    private void validatePageOwner(Long memberId, PageInDIR page) {
+        if(!page.getMember().getId().equals(memberId)) {
+            throw new IllegalStateException("올바르지 않은 접근입니다.");
+        }
+    }
+
+    private void validateDirDuplicated(Long dirId, String name) {
+        if (dirRepository.dirExistsInDirByName(dirId, name)) {
+            throw new IllegalStateException("중복된 디렉토리가 존재합니다.");
+        }
+    }
+    private void validatePageDuplicated(Long dirId, String name) {
+        if (dirRepository.pageExistsInDirByName(dirId, name)) {
+            throw new IllegalStateException("중복된 페이지가 존재합니다.");
+        }
+    }
+}

src/main/java/com/mergedoc/backend/share/dto/CreateSharedPageForm.java

@@ -0,0 +1,13 @@
+package com.mergedoc.backend.share.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class CreateSharedPageForm {
+    private Long pageId;
+    private Long memberId;
+}

src/test/java/com/mergedoc/backend/service/FileManagerTest.java

@@ -0,0 +1,79 @@
+package com.mergedoc.backend.service;
+
+import com.mergedoc.backend.dir.entity.DIR;
+import com.mergedoc.backend.dir.entity.PageInDIR;
+import com.mergedoc.backend.filemanage.dto.CreateDIRForm;
+import com.mergedoc.backend.filemanage.dto.CreatePageForm;
+import com.mergedoc.backend.filemanage.dto.FindFilesInDIRForm;
+import com.mergedoc.backend.filemanage.dto.FindPageForm;
+import com.mergedoc.backend.filemanage.service.FileManager;
+import com.mergedoc.backend.member.entity.Member;
+import com.mergedoc.backend.member.repository.MemberRepository;
+import com.mergedoc.backend.page.entity.Page;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+
+@SpringBootTest
+@Transactional
+public class FileManagerTest {
+
+    @Autowired private FileManager fileManager;
+    @Autowired private MemberRepository memberRepository;
+
+
+    private final String ROOT_PATH = "/";
+    private final String ROOT_NAME = "root";
+
+    Member member;
+    Long rootId;
+
+    @BeforeEach
+    public void createRootDIR() {
+        member = Member.builder().build();
+        memberRepository.save(member);
+
+        rootId = fileManager.createRootDIR(member.getId());
+    }
+
+    @Test
+    public void createDIR() {
+        CreateDIRForm form = new CreateDIRForm(rootId, "sampleDIR", member.getId());
+        fileManager.createDIR(form);
+
+        FindFilesInDIRForm findForm = new FindFilesInDIRForm(rootId, null, member.getId());
+        List<DIR> findDIRs = fileManager.findDIRsInDIR(findForm);
+
+        for (DIR dir : findDIRs) {
+            System.out.println(dir.getName());
+        }
+    }
+
+    @Test
+    public void createPage() {
+        CreatePageForm form = new CreatePageForm(rootId, "samplePage", member.getId());
+        fileManager.createPage(form);
+        FindFilesInDIRForm findForm = new FindFilesInDIRForm(rootId, null, member.getId());
+        List<PageInDIR> findPages = fileManager.findPagesInDIR(findForm);
+
+        for (PageInDIR page : findPages) {
+            System.out.println(page.getName());
+        }
+    }
+
+    @Test
+    public void findPage() {
+        CreatePageForm form = new CreatePageForm(rootId, "samplePage", member.getId());
+        Long pageId = fileManager.createPage(form);
+
+        FindPageForm form2 = new FindPageForm(pageId, member.getId());
+        Page page = fileManager.findPage(form2);
+
+        System.out.println(page.getName());
+    }
+
+}