Java tutorial
/* documentr - Edit, maintain, and present software documentation on the web. Copyright (C) 2012-2013 Maik Schreiber This program is free software: you can redistribute it and/or modify it under the terms of the GNU 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 General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ package de.blizzy.documentr.web.branch; import java.io.IOException; import java.util.List; import javax.validation.Valid; import org.apache.commons.lang3.StringUtils; import org.eclipse.jgit.api.errors.GitAPIException; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.security.access.prepost.PreAuthorize; import org.springframework.security.core.Authentication; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.validation.BindingResult; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import com.google.common.io.Closeables; import de.blizzy.documentr.DocumentrConstants; import de.blizzy.documentr.access.User; import de.blizzy.documentr.access.UserStore; import de.blizzy.documentr.page.IPageStore; import de.blizzy.documentr.page.Page; import de.blizzy.documentr.repository.GlobalRepositoryManager; import de.blizzy.documentr.repository.ILockedRepository; @Controller @RequestMapping("/branch") public class BranchController { @Autowired private GlobalRepositoryManager globalRepositoryManager; @Autowired private IPageStore pageStore; @Autowired private UserStore userStore; @RequestMapping(value = "/create/{projectName:" + DocumentrConstants.PROJECT_NAME_PATTERN + "}", method = RequestMethod.GET) @PreAuthorize("hasProjectPermission(#projectName, EDIT_BRANCH)") public String createBranch(@PathVariable String projectName, Model model) { BranchForm form = new BranchForm(projectName, null, null); model.addAttribute("branchForm", form); //$NON-NLS-1$ return "/project/branch/edit"; //$NON-NLS-1$ } @RequestMapping(value = "/save/{projectName:" + DocumentrConstants.PROJECT_NAME_PATTERN + "}", method = RequestMethod.POST) @PreAuthorize("hasBranchPermission(#form.projectName, #form.name, EDIT_BRANCH)") public String saveBranch(@ModelAttribute @Valid BranchForm form, BindingResult bindingResult, Authentication authentication) throws IOException, GitAPIException { List<String> branches = globalRepositoryManager.listProjectBranches(form.getProjectName()); boolean firstBranch = branches.isEmpty(); if (branches.contains(form.getName())) { bindingResult.rejectValue("name", "branch.name.exists"); //$NON-NLS-1$ //$NON-NLS-2$ } if (bindingResult.hasErrors()) { return "/project/branch/edit"; //$NON-NLS-1$ } ILockedRepository repo = null; try { repo = globalRepositoryManager.createProjectBranchRepository(form.getProjectName(), form.getName(), form.getStartingBranch()); } finally { Closeables.closeQuietly(repo); } if (firstBranch) { Page page = Page.fromText("Home", StringUtils.EMPTY); //$NON-NLS-1$ User user = userStore.getUser(authentication.getName()); pageStore.savePage(form.getProjectName(), form.getName(), DocumentrConstants.HOME_PAGE_NAME, page, null, user); return "redirect:/page/edit/" + form.getProjectName() + "/" + form.getName() + //$NON-NLS-1$ //$NON-NLS-2$ "/" + DocumentrConstants.HOME_PAGE_NAME; //$NON-NLS-1$ } return "redirect:/page/" + form.getProjectName() + "/" + form.getName() + //$NON-NLS-1$ //$NON-NLS-2$ "/" + DocumentrConstants.HOME_PAGE_NAME; //$NON-NLS-1$ } @ModelAttribute public BranchForm createBranchForm(@PathVariable String projectName, @RequestParam(required = false) String name, @RequestParam(required = false) String startingBranch) { return (name != null) ? new BranchForm(projectName, name, startingBranch) : null; } }