Java tutorial
/* * Copyright 2011 gitblit.com. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.gitblit.wicket.pages; import java.io.File; import java.io.FileInputStream; import java.io.InputStream; import java.io.InputStreamReader; import java.text.MessageFormat; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import org.apache.wicket.Component; import org.apache.wicket.request.mapper.parameter.PageParameters; import org.apache.wicket.markup.html.basic.Label; import org.eclipse.jgit.lib.Constants; import com.gitblit.Keys; import com.gitblit.models.Menu.ParameterMenuItem; import com.gitblit.models.NavLink; import com.gitblit.models.NavLink.DropDownPageMenuNavLink; import com.gitblit.models.RepositoryModel; import com.gitblit.utils.MarkdownUtils; import com.gitblit.utils.StringUtils; import com.gitblit.wicket.CacheControl; import com.gitblit.wicket.CacheControl.LastModified; import com.gitblit.wicket.GitBlitWebSession; import com.gitblit.wicket.WicketUtils; import com.gitblit.wicket.panels.RepositoriesPanel; @CacheControl(LastModified.ACTIVITY) public class RepositoriesPage extends RootPage { public RepositoriesPage() { super(); setup(null); } public RepositoriesPage(PageParameters params) { super(params); setup(params); } @Override protected boolean reusePageParameters() { return true; } private void setup(PageParameters params) { setupPage("", ""); // check to see if we should display a login message boolean authenticateView = app().settings().getBoolean(Keys.web.authenticateViewPages, true); if (authenticateView && !GitBlitWebSession.get().isLoggedIn()) { String messageSource = app().settings().getString(Keys.web.loginMessage, "gitblit"); String message = readMarkdown(messageSource, "login.mkd"); Component repositoriesMessage = new Label("repositoriesMessage", message); add(repositoriesMessage.setEscapeModelStrings(false)); add(new Label("repositoriesPanel")); return; } // Load the markdown welcome message String messageSource = app().settings().getString(Keys.web.repositoriesMessage, "gitblit"); String message = readMarkdown(messageSource, "welcome.mkd"); Component repositoriesMessage = new Label("repositoriesMessage", message).setEscapeModelStrings(false) .setVisible(message.length() > 0); add(repositoriesMessage); // conditionally include personal repositories in this page List<RepositoryModel> repositories = getRepositories(params); if (!app().settings().getBoolean(Keys.web.includePersonalRepositories, true)) { Iterator<RepositoryModel> itr = repositories.iterator(); while (itr.hasNext()) { RepositoryModel rm = itr.next(); if (rm.isPersonalRepository()) { itr.remove(); } } } RepositoriesPanel repositoriesPanel = new RepositoriesPanel("repositoriesPanel", showAdmin, true, repositories, true, getAccessRestrictions()); // push the panel down if we are hiding the admin controls and the // welcome message if (!showAdmin && !repositoriesMessage.isVisible()) { WicketUtils.setCssStyle(repositoriesPanel, "padding-top:5px;"); } add(repositoriesPanel); } @Override protected void addDropDownMenus(List<NavLink> navLinks) { PageParameters params = getPageParameters(); DropDownPageMenuNavLink menu = new DropDownPageMenuNavLink("gb.filters", RepositoriesPage.class); // preserve time filter option on repository choices menu.menuItems.addAll(getRepositoryFilterItems(params)); // preserve repository filter option on time choices menu.menuItems.addAll(getTimeFilterItems(params)); if (menu.menuItems.size() > 0) { // Reset Filter menu.menuItems.add(new ParameterMenuItem(getString("gb.reset"))); } navLinks.add(menu); } private String readMarkdown(String messageSource, String resource) { String message = ""; if (messageSource.equalsIgnoreCase("gitblit")) { // Read default message message = readDefaultMarkdown(resource); } else { // Read user-supplied message if (!StringUtils.isEmpty(messageSource)) { File file = app().runtime().getFileOrFolder(messageSource); if (file.exists()) { try { FileInputStream fis = new FileInputStream(file); InputStreamReader reader = new InputStreamReader(fis, Constants.CHARACTER_ENCODING); message = MarkdownUtils.transformMarkdown(reader); reader.close(); } catch (Throwable t) { message = getString("gb.failedToRead") + " " + file; warn(message, t); } } else { message = messageSource + " " + getString("gb.isNotValidFile"); } } } return message; } private String readDefaultMarkdown(String file) { String base = file.substring(0, file.lastIndexOf('.')); String ext = file.substring(file.lastIndexOf('.')); String lc = getLanguageCode(); String cc = getCountryCode(); // try to read file_en-us.ext, file_en.ext, file.ext List<String> files = new ArrayList<String>(); if (!StringUtils.isEmpty(lc)) { if (!StringUtils.isEmpty(cc)) { files.add(base + "_" + lc + "-" + cc + ext); files.add(base + "_" + lc + "_" + cc.toUpperCase() + ext); } files.add(base + "_" + lc + ext); } files.add(file); for (String name : files) { String message; InputStreamReader reader = null; try { InputStream is = getClass().getResourceAsStream("/" + name); if (is == null) { continue; } reader = new InputStreamReader(is, Constants.CHARACTER_ENCODING); message = MarkdownUtils.transformMarkdown(reader); reader.close(); return message; } catch (Throwable t) { message = MessageFormat.format(getString("gb.failedToReadMessage"), file); error(message, t, false); return message; } finally { if (reader != null) { try { reader.close(); } catch (Exception e) { } } } } return MessageFormat.format(getString("gb.failedToReadMessage"), file); } }