universe@41: /*
universe@41:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
universe@41:  *
universe@41:  * Copyright 2018 Mike Becker. All rights reserved.
universe@41:  *
universe@41:  * Redistribution and use in source and binary forms, with or without
universe@41:  * modification, are permitted provided that the following conditions are met:
universe@41:  *
universe@41:  *   1. Redistributions of source code must retain the above copyright
universe@41:  *      notice, this list of conditions and the following disclaimer.
universe@41:  *
universe@41:  *   2. Redistributions in binary form must reproduce the above copyright
universe@41:  *      notice, this list of conditions and the following disclaimer in the
universe@41:  *      documentation and/or other materials provided with the distribution.
universe@41:  *
universe@41:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
universe@41:  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
universe@41:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
universe@41:  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
universe@41:  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
universe@41:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
universe@41:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
universe@41:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
universe@41:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
universe@41:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
universe@41:  * POSSIBILITY OF SUCH DAMAGE.
universe@41:  *
universe@41:  */
universe@41: package de.uapcore.lightpit.modules;
universe@41: 
universe@41: 
universe@41: import de.uapcore.lightpit.*;
universe@41: import de.uapcore.lightpit.dao.DataAccessObjects;
universe@64: import de.uapcore.lightpit.entities.*;
universe@86: import de.uapcore.lightpit.viewmodel.*;
universe@59: import org.slf4j.Logger;
universe@59: import org.slf4j.LoggerFactory;
universe@41: 
universe@41: import javax.servlet.annotation.WebServlet;
universe@41: import javax.servlet.http.HttpServletRequest;
universe@59: import javax.servlet.http.HttpServletResponse;
universe@75: import javax.servlet.http.HttpSession;
universe@59: import java.io.IOException;
universe@75: import java.sql.Date;
universe@47: import java.sql.SQLException;
universe@86: import java.util.ArrayList;
universe@86: import java.util.List;
universe@86: import java.util.NoSuchElementException;
universe@86: import java.util.Objects;
universe@83: import java.util.stream.Collectors;
universe@83: import java.util.stream.Stream;
universe@41: 
universe@52: import static de.uapcore.lightpit.Functions.fqn;
universe@52: 
universe@41: @WebServlet(
universe@41:         name = "ProjectsModule",
universe@41:         urlPatterns = "/projects/*"
universe@41: )
universe@41: public final class ProjectsModule extends AbstractLightPITServlet {
universe@41: 
universe@59:     private static final Logger LOG = LoggerFactory.getLogger(ProjectsModule.class);
universe@59: 
universe@80:     public static final String SESSION_ATTR_SELECTED_PROJECT = fqn(ProjectsModule.class, "selected_project");
universe@80:     public static final String SESSION_ATTR_SELECTED_ISSUE = fqn(ProjectsModule.class, "selected_issue");
universe@80:     public static final String SESSION_ATTR_SELECTED_VERSION = fqn(ProjectsModule.class, "selected_version");
universe@52: 
universe@75:     private class SessionSelection {
universe@75:         final HttpSession session;
universe@86:         final HttpServletRequest req;
universe@86:         final DataAccessObjects dao;
universe@75:         Project project;
universe@75:         Version version;
universe@75:         Issue issue;
universe@75: 
universe@86:         SessionSelection(HttpServletRequest req, DataAccessObjects dao) {
universe@86:             this.req = req;
universe@86:             this.dao = dao;
universe@86:             session = req.getSession();
universe@86:         }
universe@86: 
universe@86:         void newProject() {
universe@86:             project = null;
universe@75:             version = null;
universe@75:             issue = null;
universe@75:             updateAttributes();
universe@86:             project = new Project(-1);
universe@86:             updateAttributes();
universe@64:         }
universe@75: 
universe@86:         void newVersion() throws SQLException {
universe@86:             project = (Project) session.getAttribute(SESSION_ATTR_SELECTED_PROJECT);
universe@86:             syncProject();
universe@86:             version = null;
universe@86:             issue = null;
universe@86:             updateAttributes();
universe@86:             version = new Version(-1);
universe@86:             version.setProject(project);
universe@86:             updateAttributes();
universe@86:         }
universe@86: 
universe@86:         void newIssue() throws SQLException {
universe@86:             project = (Project) session.getAttribute(SESSION_ATTR_SELECTED_PROJECT);
universe@86:             syncProject();
universe@86:             version = null;
universe@86:             issue = null;
universe@86:             updateAttributes();
universe@86:             issue = new Issue(-1);
universe@86:             issue.setProject(project);
universe@86:             updateAttributes();
universe@86:         }
universe@86: 
universe@86:         void selectVersion(Version selectedVersion) throws SQLException {
universe@86:             issue = null;
universe@86:             version = selectedVersion;
universe@86:             if (!version.getProject().equals(project)) {
universe@86:                 project = dao.getProjectDao().find(version.getProject().getId());
universe@75:             }
universe@86:             // our object contains more details
universe@86:             version.setProject(project);
universe@86:             updateAttributes();
universe@86:         }
universe@86: 
universe@86:         void selectIssue(Issue selectedIssue) throws SQLException {
universe@86:             issue = selectedIssue;
universe@86:             if (!issue.getProject().equals(project)) {
universe@86:                 project = dao.getProjectDao().find(issue.getProject().getId());
universe@75:             }
universe@86:             // our object contains more details
universe@86:             issue.setProject(project);
universe@88:             if (!issue.getResolvedVersions().contains(version)
universe@86:                     && !issue.getAffectedVersions().contains(version)) {
universe@86:                 version = null;
universe@86:             }
universe@86:             updateAttributes();
universe@86:         }
universe@75: 
universe@86:         void syncProject() throws SQLException {
universe@75:             final var projectSelection = getParameter(req, Integer.class, "pid");
universe@75:             if (projectSelection.isPresent()) {
universe@86:                 final var selectedProject = dao.getProjectDao().find(projectSelection.get());
universe@75:                 if (!Objects.equals(selectedProject, project)) {
universe@75:                     // reset version and issue if project changed
universe@75:                     version = null;
universe@75:                     issue = null;
universe@75:                 }
universe@75:                 project = selectedProject;
universe@75:             } else {
universe@86:                 project = project == null ? null : dao.getProjectDao().find(project.getId());
universe@75:             }
universe@86:         }
universe@86: 
universe@86:         void syncVersion() throws SQLException {
universe@86:             final var versionSelection = getParameter(req, Integer.class, "vid");
universe@86:             if (versionSelection.isPresent()) {
universe@86:                 if (versionSelection.get() < 0) {
universe@86:                     version = null;
universe@86:                 } else {
universe@86:                     final var selectedVersion = dao.getVersionDao().find(versionSelection.get());
universe@86:                     if (!Objects.equals(selectedVersion, version)) {
universe@86:                         issue = null;
universe@86:                     }
universe@86:                     selectVersion(selectedVersion);
universe@86:                 }
universe@86:             } else {
universe@86:                 version = version == null ? null : dao.getVersionDao().find(version.getId());
universe@86:             }
universe@86:         }
universe@86: 
universe@86:         void syncIssue() throws SQLException {
universe@86:             final var issueSelection = getParameter(req, Integer.class, "issue");
universe@86:             if (issueSelection.isPresent()) {
universe@86:                 final var selectedIssue = dao.getIssueDao().find(issueSelection.get());
universe@86:                 dao.getIssueDao().joinVersionInformation(selectedIssue);
universe@86:                 selectIssue(selectedIssue);
universe@86:             } else {
universe@86:                 issue = issue == null ? null : dao.getIssueDao().find(issue.getId());
universe@86:             }
universe@86:         }
universe@86: 
universe@86:         void sync() throws SQLException {
universe@86:             project = (Project) session.getAttribute(SESSION_ATTR_SELECTED_PROJECT);
universe@86:             version = (Version) session.getAttribute(SESSION_ATTR_SELECTED_VERSION);
universe@86:             issue = (Issue) session.getAttribute(SESSION_ATTR_SELECTED_ISSUE);
universe@86: 
universe@86:             syncProject();
universe@86:             syncVersion();
universe@86:             syncIssue();
universe@86: 
universe@75:             updateAttributes();
universe@75:         }
universe@75: 
universe@86:         private void updateAttributes() {
universe@75:             session.setAttribute(SESSION_ATTR_SELECTED_PROJECT, project);
universe@75:             session.setAttribute(SESSION_ATTR_SELECTED_VERSION, version);
universe@75:             session.setAttribute(SESSION_ATTR_SELECTED_ISSUE, issue);
universe@75:         }
universe@71:     }
universe@71: 
universe@78:     @Override
universe@78:     protected String getResourceBundleName() {
universe@78:         return "localization.projects";
universe@78:     }
universe@71: 
universe@80: 
universe@80:     private static final int BREADCRUMB_LEVEL_ROOT = 0;
universe@80:     private static final int BREADCRUMB_LEVEL_PROJECT = 1;
universe@80:     private static final int BREADCRUMB_LEVEL_VERSION = 2;
universe@80:     private static final int BREADCRUMB_LEVEL_ISSUE_LIST = 3;
universe@80:     private static final int BREADCRUMB_LEVEL_ISSUE = 4;
universe@80: 
universe@71:     /**
universe@71:      * Creates the breadcrumb menu.
universe@71:      *
universe@80:      * @param level           the current active level (0: root, 1: project, 2: version, 3: issue list, 4: issue)
universe@86:      * @param selection the currently selected objects
universe@71:      * @return a dynamic breadcrumb menu trying to display as many levels as possible
universe@71:      */
universe@86:     private List<MenuEntry> getBreadcrumbs(int level, SessionSelection selection) {
universe@71:         MenuEntry entry;
universe@71: 
universe@71:         final var breadcrumbs = new ArrayList<MenuEntry>();
universe@79:         entry = new MenuEntry(new ResourceKey("localization.lightpit", "menu.projects"),
universe@79:                 "projects/");
universe@71:         breadcrumbs.add(entry);
universe@80:         if (level == BREADCRUMB_LEVEL_ROOT) entry.setActive(true);
universe@71: 
universe@86:         if (selection.project != null) {
universe@86:             if (selection.project.getId() < 0) {
universe@75:                 entry = new MenuEntry(new ResourceKey("localization.projects", "button.create"),
universe@79:                         "projects/edit");
universe@75:             } else {
universe@86:                 entry = new MenuEntry(selection.project.getName(),
universe@86:                         "projects/view?pid=" + selection.project.getId());
universe@75:             }
universe@80:             if (level == BREADCRUMB_LEVEL_PROJECT) entry.setActive(true);
universe@75:             breadcrumbs.add(entry);
universe@75:         }
universe@71: 
universe@86:         if (selection.version != null) {
universe@86:             if (selection.version.getId() < 0) {
universe@75:                 entry = new MenuEntry(new ResourceKey("localization.projects", "button.version.create"),
universe@79:                         "projects/versions/edit");
universe@75:             } else {
universe@86:                 entry = new MenuEntry(selection.version.getName(),
universe@86:                         "projects/versions/view?vid=" + selection.version.getId());
universe@75:             }
universe@80:             if (level == BREADCRUMB_LEVEL_VERSION) entry.setActive(true);
universe@80:             breadcrumbs.add(entry);
universe@80:         }
universe@80: 
universe@86:         if (selection.project != null) {
universe@86:             String path = "projects/issues/?pid=" + selection.project.getId();
universe@86:             if (selection.version != null) {
universe@86:                 path += "&vid="+selection.version.getId();
universe@86:             }
universe@80:             entry = new MenuEntry(new ResourceKey("localization.projects", "menu.issues"),
universe@86:                     path);
universe@80:             if (level == BREADCRUMB_LEVEL_ISSUE_LIST) entry.setActive(true);
universe@75:             breadcrumbs.add(entry);
universe@75:         }
universe@71: 
universe@86:         if (selection.issue != null) {
universe@86:             if (selection.issue.getId() < 0) {
universe@75:                 entry = new MenuEntry(new ResourceKey("localization.projects", "button.issue.create"),
universe@79:                         "projects/issues/edit");
universe@75:             } else {
universe@86:                 entry = new MenuEntry("#" + selection.issue.getId(),
universe@75:                         // TODO: maybe change link to a view rather than directly opening the editor
universe@86:                         "projects/issues/edit?issue=" + selection.issue.getId());
universe@75:             }
universe@80:             if (level == BREADCRUMB_LEVEL_ISSUE) entry.setActive(true);
universe@75:             breadcrumbs.add(entry);
universe@75:         }
universe@75: 
universe@71:         return breadcrumbs;
universe@64:     }
universe@64: 
universe@61:     @RequestMapping(method = HttpMethod.GET)
universe@47:     public ResponseType index(HttpServletRequest req, DataAccessObjects dao) throws SQLException {
universe@75:         final var sessionSelection = new SessionSelection(req, dao);
universe@86:         sessionSelection.sync();
universe@86: 
universe@86:         final var projectDao = dao.getProjectDao();
universe@86:         final var versionDao = dao.getVersionDao();
universe@86: 
universe@86:         final var projectList = projectDao.list();
universe@86: 
universe@86:         final var viewModel = new ProjectIndexView();
universe@86:         for (var project : projectList) {
universe@86:             final var info = new ProjectInfo(project);
universe@86:             info.setVersions(versionDao.list(project));
universe@86:             info.setIssueSummary(projectDao.getIssueSummary(project));
universe@86:             viewModel.getProjects().add(info);
universe@86:         }
universe@86: 
universe@86:         setViewModel(req, viewModel);
universe@74:         setContentPage(req, "projects");
universe@52:         setStylesheet(req, "projects");
universe@52: 
universe@80:         setBreadcrumbs(req, getBreadcrumbs(BREADCRUMB_LEVEL_ROOT, sessionSelection));
universe@45: 
universe@45:         return ResponseType.HTML;
universe@45:     }
universe@45: 
universe@86:     private ProjectEditView configureEditForm(HttpServletRequest req, DataAccessObjects dao, SessionSelection selection) throws SQLException {
universe@86:         final var viewModel = new ProjectEditView();
universe@86:         viewModel.setProject(selection.project);
universe@86:         viewModel.setUsers(dao.getUserDao().list());
universe@86:         setViewModel(req, viewModel);
universe@74:         setContentPage(req, "project-form");
universe@80:         setBreadcrumbs(req, getBreadcrumbs(BREADCRUMB_LEVEL_PROJECT, selection));
universe@86:         return viewModel;
universe@71:     }
universe@71: 
universe@47:     @RequestMapping(requestPath = "edit", method = HttpMethod.GET)
universe@51:     public ResponseType edit(HttpServletRequest req, DataAccessObjects dao) throws SQLException {
universe@86:         final var selection = new SessionSelection(req, dao);
universe@86:         if (getParameter(req, Integer.class, "pid").isEmpty()) {
universe@86:             selection.newProject();
universe@86:         } else {
universe@86:             selection.sync();
universe@86:         }
universe@47: 
universe@75:         configureEditForm(req, dao, selection);
universe@47: 
universe@47:         return ResponseType.HTML;
universe@47:     }
universe@47: 
universe@47:     @RequestMapping(requestPath = "commit", method = HttpMethod.POST)
universe@68:     public ResponseType commit(HttpServletRequest req, DataAccessObjects dao) throws SQLException {
universe@47: 
universe@75:         Project project = new Project(-1);
universe@47:         try {
universe@47:             project = new Project(getParameter(req, Integer.class, "id").orElseThrow());
universe@47:             project.setName(getParameter(req, String.class, "name").orElseThrow());
universe@47:             getParameter(req, String.class, "description").ifPresent(project::setDescription);
universe@47:             getParameter(req, String.class, "repoUrl").ifPresent(project::setRepoUrl);
universe@47:             getParameter(req, Integer.class, "owner").map(
universe@47:                     ownerId -> ownerId >= 0 ? new User(ownerId) : null
universe@47:             ).ifPresent(project::setOwner);
universe@47: 
universe@47:             dao.getProjectDao().saveOrUpdate(project);
universe@47: 
universe@70:             setRedirectLocation(req, "./projects/");
universe@74:             setContentPage(req, Constants.JSP_COMMIT_SUCCESSFUL);
universe@59:             LOG.debug("Successfully updated project {}", project.getName());
universe@75:         } catch (NoSuchElementException | IllegalArgumentException | SQLException ex) {
universe@59:             LOG.warn("Form validation failure: {}", ex.getMessage());
universe@59:             LOG.debug("Details:", ex);
universe@86:             final var selection = new SessionSelection(req, dao);
universe@86:             selection.project = project;
universe@86:             final var vm = configureEditForm(req, dao, selection);
universe@86:             vm.setErrorText(ex.getMessage()); // TODO: error text
universe@47:         }
universe@47: 
universe@47:         return ResponseType.HTML;
universe@47:     }
universe@47: 
universe@70:     @RequestMapping(requestPath = "view", method = HttpMethod.GET)
universe@80:     public ResponseType view(HttpServletRequest req, HttpServletResponse resp, DataAccessObjects dao) throws SQLException, IOException {
universe@86:         final var selection = new SessionSelection(req, dao);
universe@86:         selection.sync();
universe@86: 
universe@86:         if (selection.project == null) {
universe@80:             resp.sendError(HttpServletResponse.SC_NOT_FOUND, "No project selected.");
universe@80:             return ResponseType.NONE;
universe@80:         }
universe@47: 
universe@80:         final var versionDao = dao.getVersionDao();
universe@86:         final var issueDao = dao.getIssueDao();
universe@70: 
universe@86:         final var viewModel = new ProjectView(selection.project);
universe@86:         final var issues = issueDao.list(selection.project);
universe@86:         for (var issue : issues) issueDao.joinVersionInformation(issue);
universe@86:         viewModel.setIssues(issues);
universe@86:         viewModel.setVersions(versionDao.list(selection.project));
universe@86:         viewModel.updateVersionInfo();
universe@86:         setViewModel(req, viewModel);
universe@80: 
universe@86:         setBreadcrumbs(req, getBreadcrumbs(BREADCRUMB_LEVEL_PROJECT, selection));
universe@74:         setContentPage(req, "project-details");
universe@80:         setStylesheet(req, "projects");
universe@59: 
universe@59:         return ResponseType.HTML;
universe@59:     }
universe@59: 
universe@86:     @RequestMapping(requestPath = "versions/view", method = HttpMethod.GET)
universe@86:     public ResponseType viewVersion(HttpServletRequest req, HttpServletResponse resp, DataAccessObjects dao) throws SQLException, IOException {
universe@86:         final var selection = new SessionSelection(req, dao);
universe@86:         selection.sync();
universe@86:         if (selection.version == null) {
universe@86:             resp.sendError(HttpServletResponse.SC_NOT_FOUND);
universe@86:             return ResponseType.NONE;
universe@86:         }
universe@71: 
universe@86:         final var issueDao = dao.getIssueDao();
universe@86:         final var viewModel = new VersionView(selection.version);
universe@86:         final var issues = issueDao.list(selection.version);
universe@86:         for (var issue : issues) issueDao.joinVersionInformation(issue);
universe@86:         viewModel.setIssues(issues);
universe@86:         setViewModel(req, viewModel);
universe@80: 
universe@86:         setBreadcrumbs(req, getBreadcrumbs(BREADCRUMB_LEVEL_VERSION, selection));
universe@86:         setContentPage(req, "version");
universe@86:         setStylesheet(req, "projects");
universe@86: 
universe@86:         return ResponseType.HTML;
universe@86:     }
universe@86: 
universe@86:     private VersionEditView configureEditVersionForm(HttpServletRequest req, DataAccessObjects dao, SessionSelection selection) throws SQLException {
universe@86:         final var viewModel = new VersionEditView(selection.version);
universe@86:         if (selection.version.getProject() == null) {
universe@86:             viewModel.setProjects(dao.getProjectDao().list());
universe@86:         }
universe@86:         setViewModel(req, viewModel);
universe@74:         setContentPage(req, "version-form");
universe@80:         setBreadcrumbs(req, getBreadcrumbs(BREADCRUMB_LEVEL_VERSION, selection));
universe@86:         return viewModel;
universe@71:     }
universe@71: 
universe@59:     @RequestMapping(requestPath = "versions/edit", method = HttpMethod.GET)
universe@86:     public ResponseType editVersion(HttpServletRequest req, DataAccessObjects dao) throws SQLException {
universe@86:         final var selection = new SessionSelection(req, dao);
universe@86:         if (getParameter(req, Integer.class, "vid").isEmpty()) {
universe@86:             selection.newVersion();
universe@86:         } else {
universe@86:             selection.sync();
universe@86:         }
universe@59: 
universe@86:         configureEditVersionForm(req, dao, selection);
universe@59: 
universe@59:         return ResponseType.HTML;
universe@59:     }
universe@59: 
universe@59:     @RequestMapping(requestPath = "versions/commit", method = HttpMethod.POST)
universe@80:     public ResponseType commitVersion(HttpServletRequest req, HttpServletResponse resp, DataAccessObjects dao) throws SQLException {
universe@59: 
universe@86:         var version = new Version(-1);
universe@59:         try {
universe@86:             version = new Version(getParameter(req, Integer.class, "id").orElseThrow());
universe@86:             version.setProject(new Project(getParameter(req, Integer.class, "pid").orElseThrow()));
universe@59:             version.setName(getParameter(req, String.class, "name").orElseThrow());
universe@59:             getParameter(req, Integer.class, "ordinal").ifPresent(version::setOrdinal);
universe@59:             version.setStatus(VersionStatus.valueOf(getParameter(req, String.class, "status").orElseThrow()));
universe@59:             dao.getVersionDao().saveOrUpdate(version);
universe@59: 
universe@75:             // specifying the pid parameter will purposely reset the session selected version!
universe@86:             setRedirectLocation(req, "./projects/view?pid="+version.getProject().getId());
universe@74:             setContentPage(req, Constants.JSP_COMMIT_SUCCESSFUL);
universe@75:         } catch (NoSuchElementException | IllegalArgumentException | SQLException ex) {
universe@59:             LOG.warn("Form validation failure: {}", ex.getMessage());
universe@59:             LOG.debug("Details:", ex);
universe@86:             final var selection = new SessionSelection(req, dao);
universe@86:             selection.selectVersion(version);
universe@86:             final var viewModel = configureEditVersionForm(req, dao, selection);
universe@86:             // TODO: set Error Text
universe@59:         }
universe@41: 
universe@43:         return ResponseType.HTML;
universe@41:     }
universe@64: 
universe@86:     private IssueEditView configureEditIssueForm(HttpServletRequest req, DataAccessObjects dao, SessionSelection selection) throws SQLException {
universe@86:         final var viewModel = new IssueEditView(selection.issue);
universe@83: 
universe@86:         if (selection.issue.getProject() == null) {
universe@86:             viewModel.setProjects(dao.getProjectDao().list());
universe@83:         } else {
universe@86:             viewModel.setVersions(dao.getVersionDao().list(selection.issue.getProject()));
universe@83:         }
universe@86:         viewModel.setUsers(dao.getUserDao().list());
universe@86:         setViewModel(req, viewModel);
universe@71: 
universe@74:         setContentPage(req, "issue-form");
universe@80:         setBreadcrumbs(req, getBreadcrumbs(BREADCRUMB_LEVEL_ISSUE, selection));
universe@86:         return viewModel;
universe@80:     }
universe@80: 
universe@80:     @RequestMapping(requestPath = "issues/", method = HttpMethod.GET)
universe@80:     public ResponseType issues(HttpServletRequest req, HttpServletResponse resp, DataAccessObjects dao) throws SQLException, IOException {
universe@86:         final var selection = new SessionSelection(req, dao);
universe@86:         selection.sync();
universe@86:         if (selection.project == null) {
universe@80:             resp.sendError(HttpServletResponse.SC_NOT_FOUND, "No project selected.");
universe@80:             return ResponseType.NONE;
universe@80:         }
universe@80: 
universe@86:         final var viewModel = new IssuesView();
universe@86:         viewModel.setProject(selection.project);
universe@86:         if (selection.version == null) {
universe@86:             viewModel.setIssues(dao.getIssueDao().list(selection.project));
universe@86:         } else {
universe@86:             viewModel.setVersion(selection.version);
universe@86:             viewModel.setIssues(dao.getIssueDao().list(selection.version));
universe@86:         }
universe@86:         setViewModel(req, viewModel);
universe@80: 
universe@86:         setBreadcrumbs(req, getBreadcrumbs(BREADCRUMB_LEVEL_ISSUE_LIST, selection));
universe@80:         setContentPage(req, "issues");
universe@80:         setStylesheet(req, "projects");
universe@80: 
universe@80:         return ResponseType.HTML;
universe@71:     }
universe@71: 
universe@64:     @RequestMapping(requestPath = "issues/edit", method = HttpMethod.GET)
universe@80:     public ResponseType editIssue(HttpServletRequest req, HttpServletResponse resp, DataAccessObjects dao) throws SQLException {
universe@86:         final var selection = new SessionSelection(req, dao);
universe@86:         if (getParameter(req, Integer.class, "issue").isEmpty()) {
universe@86:             selection.newIssue();
universe@86:         } else {
universe@86:             selection.sync();
universe@86:         }
universe@64: 
universe@86:         configureEditIssueForm(req, dao, selection);
universe@64: 
universe@64:         return ResponseType.HTML;
universe@64:     }
universe@64: 
universe@64:     @RequestMapping(requestPath = "issues/commit", method = HttpMethod.POST)
universe@80:     public ResponseType commitIssue(HttpServletRequest req, HttpServletResponse resp, DataAccessObjects dao) throws SQLException {
universe@64: 
universe@86:         Issue issue = new Issue(-1);
universe@64:         try {
universe@86:             issue = new Issue(getParameter(req, Integer.class, "id").orElseThrow());
universe@86:             issue.setProject(new Project(getParameter(req, Integer.class, "pid").orElseThrow()));
universe@75:             getParameter(req, String.class, "category").map(IssueCategory::valueOf).ifPresent(issue::setCategory);
universe@75:             getParameter(req, String.class, "status").map(IssueStatus::valueOf).ifPresent(issue::setStatus);
universe@75:             issue.setSubject(getParameter(req, String.class, "subject").orElseThrow());
universe@75:             getParameter(req, Integer.class, "assignee").map(
universe@75:                     userid -> userid >= 0 ? new User(userid) : null
universe@75:             ).ifPresent(issue::setAssignee);
universe@75:             getParameter(req, String.class, "description").ifPresent(issue::setDescription);
universe@75:             getParameter(req, Date.class, "eta").ifPresent(issue::setEta);
universe@83: 
universe@83:             getParameter(req, Integer[].class, "affected")
universe@83:                     .map(Stream::of)
universe@83:                     .map(stream ->
universe@86:                         stream.map(Version::new).collect(Collectors.toList())
universe@83:                     ).ifPresent(issue::setAffectedVersions);
universe@83:             getParameter(req, Integer[].class, "resolved")
universe@83:                     .map(Stream::of)
universe@83:                     .map(stream ->
universe@86:                             stream.map(Version::new).collect(Collectors.toList())
universe@83:                     ).ifPresent(issue::setResolvedVersions);
universe@83: 
universe@64:             dao.getIssueDao().saveOrUpdate(issue);
universe@64: 
universe@75:             // specifying the issue parameter keeps the edited issue as breadcrumb
universe@81:             setRedirectLocation(req, "./projects/issues/?issue="+issue.getId());
universe@74:             setContentPage(req, Constants.JSP_COMMIT_SUCCESSFUL);
universe@75:         } catch (NoSuchElementException | IllegalArgumentException | SQLException ex) {
universe@64:             // TODO: set request attribute with error text
universe@64:             LOG.warn("Form validation failure: {}", ex.getMessage());
universe@64:             LOG.debug("Details:", ex);
universe@86:             final var selection = new SessionSelection(req, dao);
universe@86:             selection.selectIssue(issue);
universe@86:             final var viewModel = configureEditIssueForm(req, dao, selection);
universe@86:             // TODO: set Error Text
universe@64:         }
universe@64: 
universe@64:         return ResponseType.HTML;
universe@64:     }
universe@41: }