src/main/java/de/uapcore/lightpit/modules/ProjectsModule.java

Sat, 23 May 2020 14:13:09 +0200

author
Mike Becker <universe@uap-core.de>
date
Sat, 23 May 2020 14:13:09 +0200
changeset 79
f64255a88d66
parent 78
bb4c52bf3439
child 80
27a25f32048e
permissions
-rw-r--r--

bloat removal 3/3 - LightPITModule annotation and ModuleManager

     1 /*
     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
     3  *
     4  * Copyright 2018 Mike Becker. All rights reserved.
     5  *
     6  * Redistribution and use in source and binary forms, with or without
     7  * modification, are permitted provided that the following conditions are met:
     8  *
     9  *   1. Redistributions of source code must retain the above copyright
    10  *      notice, this list of conditions and the following disclaimer.
    11  *
    12  *   2. Redistributions in binary form must reproduce the above copyright
    13  *      notice, this list of conditions and the following disclaimer in the
    14  *      documentation and/or other materials provided with the distribution.
    15  *
    16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    19  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
    20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    26  * POSSIBILITY OF SUCH DAMAGE.
    27  *
    28  */
    29 package de.uapcore.lightpit.modules;
    32 import de.uapcore.lightpit.*;
    33 import de.uapcore.lightpit.dao.DataAccessObjects;
    34 import de.uapcore.lightpit.entities.*;
    35 import org.slf4j.Logger;
    36 import org.slf4j.LoggerFactory;
    38 import javax.servlet.annotation.WebServlet;
    39 import javax.servlet.http.HttpServletRequest;
    40 import javax.servlet.http.HttpServletResponse;
    41 import javax.servlet.http.HttpSession;
    42 import java.io.IOException;
    43 import java.sql.Date;
    44 import java.sql.SQLException;
    45 import java.util.ArrayList;
    46 import java.util.List;
    47 import java.util.NoSuchElementException;
    48 import java.util.Objects;
    50 import static de.uapcore.lightpit.Functions.fqn;
    52 @WebServlet(
    53         name = "ProjectsModule",
    54         urlPatterns = "/projects/*"
    55 )
    56 public final class ProjectsModule extends AbstractLightPITServlet {
    58     private static final Logger LOG = LoggerFactory.getLogger(ProjectsModule.class);
    60     public static final String SESSION_ATTR_SELECTED_PROJECT = fqn(ProjectsModule.class, "selected-project");
    61     public static final String SESSION_ATTR_SELECTED_ISSUE = fqn(ProjectsModule.class, "selected-issue");
    62     public static final String SESSION_ATTR_SELECTED_VERSION = fqn(ProjectsModule.class, "selected-version");
    64     private class SessionSelection {
    65         final HttpSession session;
    66         Project project;
    67         Version version;
    68         Issue issue;
    70         SessionSelection(HttpServletRequest req, Project project) {
    71             this.session = req.getSession();
    72             this.project = project;
    73             version = null;
    74             issue = null;
    75             updateAttributes();
    76         }
    78         SessionSelection(HttpServletRequest req, DataAccessObjects dao) throws SQLException {
    79             this.session = req.getSession();
    80             final var issueDao = dao.getIssueDao();
    81             final var projectDao = dao.getProjectDao();
    82             final var issueSelection = getParameter(req, Integer.class, "issue");
    83             if (issueSelection.isPresent()) {
    84                 issue = issueDao.find(issueSelection.get());
    85             } else {
    86                 final var issue = (Issue) session.getAttribute(SESSION_ATTR_SELECTED_ISSUE);
    87                 this.issue = issue == null ? null : issueDao.find(issue.getId());
    88             }
    89             if (issue != null) {
    90                 version = null; // show the issue globally
    91                 project = projectDao.find(issue.getProject().getId());
    92             }
    94             final var projectSelection = getParameter(req, Integer.class, "pid");
    95             if (projectSelection.isPresent()) {
    96                 final var selectedProject = projectDao.find(projectSelection.get());
    97                 if (!Objects.equals(selectedProject, project)) {
    98                     // reset version and issue if project changed
    99                     version = null;
   100                     issue = null;
   101                 }
   102                 project = selectedProject;
   103             } else {
   104                 final var sessionProject = (Project) session.getAttribute(SESSION_ATTR_SELECTED_PROJECT);
   105                 project = sessionProject == null ? null : projectDao.find(sessionProject.getId());
   106             }
   107             updateAttributes();
   108         }
   110         void selectVersion(Version version) {
   111             if (!Objects.equals(project, version.getProject())) throw new AssertionError("Nice, you implemented a bug!");
   112             this.version = version;
   113             this.issue = null;
   114             updateAttributes();
   115         }
   117         void selectIssue(Issue issue) {
   118             if (!Objects.equals(issue.getProject(), project)) throw new AssertionError("Nice, you implemented a bug!");
   119             this.issue = issue;
   120             this.version = null;
   121             updateAttributes();
   122         }
   124         void updateAttributes() {
   125             session.setAttribute(SESSION_ATTR_SELECTED_PROJECT, project);
   126             session.setAttribute(SESSION_ATTR_SELECTED_VERSION, version);
   127             session.setAttribute(SESSION_ATTR_SELECTED_ISSUE, issue);
   128         }
   129     }
   131     @Override
   132     protected String getResourceBundleName() {
   133         return "localization.projects";
   134     }
   136     /**
   137      * Creates the breadcrumb menu.
   138      *
   139      * @param level           the current active level (0: root, 1: project, 2: version, 3: issue)
   140      * @param sessionSelection the currently selected objects
   141      * @return a dynamic breadcrumb menu trying to display as many levels as possible
   142      */
   143     private List<MenuEntry> getBreadcrumbs(int level, SessionSelection sessionSelection) {
   144         MenuEntry entry;
   146         final var breadcrumbs = new ArrayList<MenuEntry>();
   147         entry = new MenuEntry(new ResourceKey("localization.lightpit", "menu.projects"),
   148                 "projects/");
   149         breadcrumbs.add(entry);
   150         if (level == 0) entry.setActive(true);
   152         if (sessionSelection.project != null) {
   153             if (sessionSelection.project.getId() < 0) {
   154                 entry = new MenuEntry(new ResourceKey("localization.projects", "button.create"),
   155                         "projects/edit");
   156             } else {
   157                 entry = new MenuEntry(sessionSelection.project.getName(),
   158                         "projects/view?pid=" + sessionSelection.project.getId());
   159             }
   160             if (level == 1) entry.setActive(true);
   161             breadcrumbs.add(entry);
   162         }
   164         if (sessionSelection.version != null) {
   165             if (sessionSelection.version.getId() < 0) {
   166                 entry = new MenuEntry(new ResourceKey("localization.projects", "button.version.create"),
   167                         "projects/versions/edit");
   168             } else {
   169                 entry = new MenuEntry(sessionSelection.version.getName(),
   170                         // TODO: change link to issue overview for that version
   171                         "projects/versions/edit?id=" + sessionSelection.version.getId());
   172             }
   173             if (level == 2) entry.setActive(true);
   174             breadcrumbs.add(entry);
   175         }
   177         if (sessionSelection.issue != null) {
   178             entry = new MenuEntry(new ResourceKey("localization.projects", "menu.issues"),
   179                     // TODO: change link to a separate issue view (maybe depending on the selected version)
   180                     "projects/view?pid=" + sessionSelection.issue.getProject().getId());
   181             breadcrumbs.add(entry);
   182             if (sessionSelection.issue.getId() < 0) {
   183                 entry = new MenuEntry(new ResourceKey("localization.projects", "button.issue.create"),
   184                         "projects/issues/edit");
   185             } else {
   186                 entry = new MenuEntry("#" + sessionSelection.issue.getId(),
   187                         // TODO: maybe change link to a view rather than directly opening the editor
   188                         "projects/issues/edit?id=" + sessionSelection.issue.getId());
   189             }
   190             if (level == 3) entry.setActive(true);
   191             breadcrumbs.add(entry);
   192         }
   194         return breadcrumbs;
   195     }
   197     @RequestMapping(method = HttpMethod.GET)
   198     public ResponseType index(HttpServletRequest req, DataAccessObjects dao) throws SQLException {
   199         final var sessionSelection = new SessionSelection(req, dao);
   200         final var projectList = dao.getProjectDao().list();
   201         req.setAttribute("projects", projectList);
   202         setContentPage(req, "projects");
   203         setStylesheet(req, "projects");
   205         setBreadcrumbs(req, getBreadcrumbs(0, sessionSelection));
   207         return ResponseType.HTML;
   208     }
   210     private void configureEditForm(HttpServletRequest req, DataAccessObjects dao, SessionSelection selection) throws SQLException {
   211         req.setAttribute("project", selection.project);
   212         req.setAttribute("users", dao.getUserDao().list());
   213         setContentPage(req, "project-form");
   214         setBreadcrumbs(req, getBreadcrumbs(1, selection));
   215     }
   217     @RequestMapping(requestPath = "edit", method = HttpMethod.GET)
   218     public ResponseType edit(HttpServletRequest req, DataAccessObjects dao) throws SQLException {
   219         final var selection = new SessionSelection(req, findByParameter(req, Integer.class, "id",
   220                 dao.getProjectDao()::find).orElse(new Project(-1)));
   222         configureEditForm(req, dao, selection);
   224         return ResponseType.HTML;
   225     }
   227     @RequestMapping(requestPath = "commit", method = HttpMethod.POST)
   228     public ResponseType commit(HttpServletRequest req, DataAccessObjects dao) throws SQLException {
   230         Project project = new Project(-1);
   231         try {
   232             project = new Project(getParameter(req, Integer.class, "id").orElseThrow());
   233             project.setName(getParameter(req, String.class, "name").orElseThrow());
   234             getParameter(req, String.class, "description").ifPresent(project::setDescription);
   235             getParameter(req, String.class, "repoUrl").ifPresent(project::setRepoUrl);
   236             getParameter(req, Integer.class, "owner").map(
   237                     ownerId -> ownerId >= 0 ? new User(ownerId) : null
   238             ).ifPresent(project::setOwner);
   240             dao.getProjectDao().saveOrUpdate(project);
   242             setRedirectLocation(req, "./projects/");
   243             setContentPage(req, Constants.JSP_COMMIT_SUCCESSFUL);
   244             LOG.debug("Successfully updated project {}", project.getName());
   245         } catch (NoSuchElementException | IllegalArgumentException | SQLException ex) {
   246             // TODO: set request attribute with error text
   247             LOG.warn("Form validation failure: {}", ex.getMessage());
   248             LOG.debug("Details:", ex);
   249             configureEditForm(req, dao, new SessionSelection(req, project));
   250         }
   252         return ResponseType.HTML;
   253     }
   255     @RequestMapping(requestPath = "view", method = HttpMethod.GET)
   256     public ResponseType view(HttpServletRequest req, HttpServletResponse resp, DataAccessObjects dao) throws IOException, SQLException {
   257         final var sessionSelection = new SessionSelection(req, dao);
   259         req.setAttribute("versions", dao.getVersionDao().list(sessionSelection.project));
   260         req.setAttribute("issues", dao.getIssueDao().list(sessionSelection.project));
   262         setBreadcrumbs(req, getBreadcrumbs(1, sessionSelection));
   263         setContentPage(req, "project-details");
   265         return ResponseType.HTML;
   266     }
   268     private void configureEditVersionForm(HttpServletRequest req, DataAccessObjects dao, SessionSelection selection) throws SQLException {
   269         req.setAttribute("projects", dao.getProjectDao().list());
   270         req.setAttribute("version", selection.version);
   271         req.setAttribute("versionStatusEnum", VersionStatus.values());
   273         setContentPage(req, "version-form");
   274         setBreadcrumbs(req, getBreadcrumbs(2, selection));
   275     }
   277     @RequestMapping(requestPath = "versions/edit", method = HttpMethod.GET)
   278     public ResponseType editVersion(HttpServletRequest req, HttpServletResponse resp, DataAccessObjects dao) throws IOException, SQLException {
   279         final var sessionSelection = new SessionSelection(req, dao);
   281         sessionSelection.selectVersion(findByParameter(req, Integer.class, "id", dao.getVersionDao()::find)
   282                 .orElse(new Version(-1, sessionSelection.project)));
   283         configureEditVersionForm(req, dao, sessionSelection);
   285         return ResponseType.HTML;
   286     }
   288     @RequestMapping(requestPath = "versions/commit", method = HttpMethod.POST)
   289     public ResponseType commitVersion(HttpServletRequest req, HttpServletResponse resp, DataAccessObjects dao) throws IOException, SQLException {
   290         final var sessionSelection = new SessionSelection(req, dao);
   292         var version = new Version(-1, sessionSelection.project);
   293         try {
   294             version = new Version(getParameter(req, Integer.class, "id").orElseThrow(), sessionSelection.project);
   295             version.setName(getParameter(req, String.class, "name").orElseThrow());
   296             getParameter(req, Integer.class, "ordinal").ifPresent(version::setOrdinal);
   297             version.setStatus(VersionStatus.valueOf(getParameter(req, String.class, "status").orElseThrow()));
   298             dao.getVersionDao().saveOrUpdate(version);
   300             // specifying the pid parameter will purposely reset the session selected version!
   301             setRedirectLocation(req, "./projects/view?pid="+sessionSelection.project.getId());
   302             setContentPage(req, Constants.JSP_COMMIT_SUCCESSFUL);
   303             LOG.debug("Successfully updated version {} for project {}", version.getName(), sessionSelection.project.getName());
   304         } catch (NoSuchElementException | IllegalArgumentException | SQLException ex) {
   305             // TODO: set request attribute with error text
   306             LOG.warn("Form validation failure: {}", ex.getMessage());
   307             LOG.debug("Details:", ex);
   308             sessionSelection.selectVersion(version);
   309             configureEditVersionForm(req, dao, sessionSelection);
   310         }
   312         return ResponseType.HTML;
   313     }
   315     private void configureEditIssueForm(HttpServletRequest req, DataAccessObjects dao, SessionSelection selection) throws SQLException {
   316         req.setAttribute("projects", dao.getProjectDao().list());
   317         req.setAttribute("issue", selection.issue);
   318         req.setAttribute("issueStatusEnum", IssueStatus.values());
   319         req.setAttribute("issueCategoryEnum", IssueCategory.values());
   320         req.setAttribute("users", dao.getUserDao().list());
   322         setContentPage(req, "issue-form");
   323         setBreadcrumbs(req, getBreadcrumbs(3, selection));
   324     }
   326     @RequestMapping(requestPath = "issues/edit", method = HttpMethod.GET)
   327     public ResponseType editIssue(HttpServletRequest req, HttpServletResponse resp, DataAccessObjects dao) throws IOException, SQLException {
   328         final var sessionSelection = new SessionSelection(req, dao);
   330         sessionSelection.selectIssue(findByParameter(req, Integer.class, "id",
   331                 dao.getIssueDao()::find).orElse(new Issue(-1, sessionSelection.project)));
   332         configureEditIssueForm(req, dao, sessionSelection);
   334         return ResponseType.HTML;
   335     }
   337     @RequestMapping(requestPath = "issues/commit", method = HttpMethod.POST)
   338     public ResponseType commitIssue(HttpServletRequest req, HttpServletResponse resp, DataAccessObjects dao) throws IOException, SQLException {
   339         final var sessionSelection = new SessionSelection(req, dao);
   341         Issue issue = new Issue(-1, sessionSelection.project);
   342         try {
   343             issue = new Issue(getParameter(req, Integer.class, "id").orElseThrow(), sessionSelection.project);
   344             getParameter(req, String.class, "category").map(IssueCategory::valueOf).ifPresent(issue::setCategory);
   345             getParameter(req, String.class, "status").map(IssueStatus::valueOf).ifPresent(issue::setStatus);
   346             issue.setSubject(getParameter(req, String.class, "subject").orElseThrow());
   347             getParameter(req, Integer.class, "assignee").map(
   348                     userid -> userid >= 0 ? new User(userid) : null
   349             ).ifPresent(issue::setAssignee);
   350             getParameter(req, String.class, "description").ifPresent(issue::setDescription);
   351             getParameter(req, Date.class, "eta").ifPresent(issue::setEta);
   352             dao.getIssueDao().saveOrUpdate(issue);
   354             // TODO: redirect to issue overview
   355             // specifying the issue parameter keeps the edited issue as breadcrumb
   356             setRedirectLocation(req, "./projects/view?issue="+issue.getId());
   357             setContentPage(req, Constants.JSP_COMMIT_SUCCESSFUL);
   358             LOG.debug("Successfully updated issue {} for project {}", issue.getId(), sessionSelection.project.getName());
   359         } catch (NoSuchElementException | IllegalArgumentException | SQLException ex) {
   360             // TODO: set request attribute with error text
   361             LOG.warn("Form validation failure: {}", ex.getMessage());
   362             LOG.debug("Details:", ex);
   363             sessionSelection.selectIssue(issue);
   364             configureEditIssueForm(req, dao, sessionSelection);
   365         }
   367         return ResponseType.HTML;
   368     }
   369 }

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