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.panels; import java.util.Date; import java.util.List; import java.util.Map; import org.apache.wicket.AttributeModifier; import org.apache.wicket.MarkupContainer; import org.apache.wicket.markup.html.WebMarkupContainer; import org.apache.wicket.markup.html.basic.Label; import org.apache.wicket.markup.html.link.BookmarkablePageLink; import org.apache.wicket.markup.repeater.Item; import org.apache.wicket.markup.repeater.data.DataView; import org.apache.wicket.markup.repeater.data.ListDataProvider; import org.apache.wicket.model.StringResourceModel; import org.eclipse.jgit.lib.ObjectId; import org.eclipse.jgit.lib.Repository; import org.eclipse.jgit.revwalk.RevCommit; import com.gitblit.Constants; import com.gitblit.Keys; import com.gitblit.models.RefModel; import com.gitblit.servlet.BranchGraphServlet; import com.gitblit.utils.JGitUtils; import com.gitblit.utils.StringUtils; import com.gitblit.wicket.ExternalImage; import com.gitblit.wicket.WicketUtils; import com.gitblit.wicket.pages.CommitDiffPage; import com.gitblit.wicket.pages.CommitPage; import com.gitblit.wicket.pages.GitSearchPage; import com.gitblit.wicket.pages.LogPage; import com.gitblit.wicket.pages.TreePage; public class LogPanel extends BasePanel { private static final long serialVersionUID = 1L; private boolean hasMore; public LogPanel(String wicketId, final String repositoryName, final String objectId, Repository r, int limit, int pageOffset, boolean showRemoteRefs) { super(wicketId); boolean pageResults = limit <= 0; int itemsPerPage = app().settings().getInteger(Keys.web.itemsPerPage, 50); if (itemsPerPage <= 1) { itemsPerPage = 50; } final Map<ObjectId, List<RefModel>> allRefs = JGitUtils.getAllRefs(r, showRemoteRefs); List<RevCommit> commits; if (pageResults) { // Paging result set commits = JGitUtils.getRevLog(r, objectId, pageOffset * itemsPerPage, itemsPerPage); } else { // Fixed size result set commits = JGitUtils.getRevLog(r, objectId, 0, limit); } // inaccurate way to determine if there are more commits. // works unless commits.size() represents the exact end. hasMore = commits.size() >= itemsPerPage; final String baseUrl = WicketUtils.getGitblitURL(getRequest()); final boolean showGraph = app().settings().getBoolean(Keys.web.showBranchGraph, true); MarkupContainer graph = new WebMarkupContainer("graph"); add(graph); if (!showGraph || commits.isEmpty()) { // not showing or nothing to show graph.setVisible(false); } else { // set the rowspan on the graph row and +1 for the graph row itself graph.add(new AttributeModifier("rowspan", "" + (commits.size() + 1))); graph.add(new ExternalImage("image", BranchGraphServlet.asLink(baseUrl, repositoryName, commits.get(0).name(), commits.size()))); } // header if (pageResults) { // shortlog page add(new Label("header", objectId)); } else { // summary page // show shortlog page link add(new LinkPanel("header", "title", objectId, LogPage.class, WicketUtils.newRepositoryParameter(repositoryName))); } final int hashLen = app().settings().getInteger(Keys.web.shortCommitIdLength, 6); ListDataProvider<RevCommit> dp = new ListDataProvider<RevCommit>(commits); DataView<RevCommit> logView = new DataView<RevCommit>("commit", dp) { private static final long serialVersionUID = 1L; int counter; @Override public void populateItem(final Item<RevCommit> item) { final RevCommit entry = item.getModelObject(); final Date date = JGitUtils.getAuthorDate(entry); final boolean isMerge = entry.getParentCount() > 1; item.add(WicketUtils.createDateLabel("commitDate", date, getTimeZone(), getTimeUtils())); // author search link String author = entry.getAuthorIdent().getName(); LinkPanel authorLink = new LinkPanel("commitAuthor", "list", author, GitSearchPage.class, WicketUtils.newSearchParameter(repositoryName, null, author, Constants.SearchType.AUTHOR)); setPersonSearchTooltip(authorLink, author, Constants.SearchType.AUTHOR); item.add(authorLink); // merge icon if (isMerge) { item.add(WicketUtils.newImage("commitIcon", "commit_merge_16x16.png")); } else { item.add(WicketUtils.newBlankImage("commitIcon")); } // short message String shortMessage = entry.getShortMessage(); String trimmedMessage = shortMessage; if (allRefs.containsKey(entry.getId())) { trimmedMessage = StringUtils.trimString(shortMessage, Constants.LEN_SHORTLOG_REFS); } else { trimmedMessage = StringUtils.trimString(shortMessage, Constants.LEN_SHORTLOG); } LinkPanel shortlog = new LinkPanel("commitShortMessage", "list subject" + (isMerge ? " merge" : ""), trimmedMessage, CommitPage.class, WicketUtils.newObjectParameter(repositoryName, entry.getName())); if (!shortMessage.equals(trimmedMessage)) { WicketUtils.setHtmlTooltip(shortlog, shortMessage); } item.add(shortlog); item.add(new RefsPanel("commitRefs", repositoryName, entry, allRefs)); // commit hash link LinkPanel commitHash = new LinkPanel("hashLink", null, entry.getName().substring(0, hashLen), CommitPage.class, WicketUtils.newObjectParameter(repositoryName, entry.getName())); WicketUtils.setCssClass(commitHash, "shortsha1"); WicketUtils.setHtmlTooltip(commitHash, entry.getName()); item.add(commitHash); item.add(new BookmarkablePageLink<Void>("diff", CommitDiffPage.class, WicketUtils.newObjectParameter(repositoryName, entry.getName())) .setEnabled(entry.getParentCount() > 0)); item.add(new BookmarkablePageLink<Void>("tree", TreePage.class, WicketUtils.newObjectParameter(repositoryName, entry.getName()))); String clazz = counter % 2 == 0 ? "light commit" : "dark commit"; WicketUtils.setCssClass(item, clazz); counter++; } }; add(logView); // determine to show pager, more, or neither if (limit <= 0) { // no display limit add(new Label("moreLogs", "").setVisible(false)); } else { if (pageResults) { // paging add(new Label("moreLogs", "").setVisible(false)); } else { // more if (commits.size() == limit) { // show more add(new LinkPanel("moreLogs", "link", new StringResourceModel("gb.moreLogs", this, null), LogPage.class, WicketUtils.newRepositoryParameter(repositoryName))); } else { // no more add(new Label("moreLogs", "").setVisible(false)); } } } } public boolean hasMore() { return hasMore; } }