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.OutputStream; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import org.apache.wicket.request.handler.resource.ResourceStreamRequestHandler; import org.apache.wicket.request.mapper.parameter.PageParameters; import org.apache.wicket.markup.html.basic.Label; import org.apache.wicket.markup.html.link.BookmarkablePageLink; import org.apache.wicket.markup.html.link.ExternalLink; import org.apache.wicket.markup.html.link.Link; 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.util.resource.AbstractResourceStreamWriter; import org.apache.wicket.util.resource.IResourceStream; import org.eclipse.jgit.diff.DiffEntry.ChangeType; import org.eclipse.jgit.lib.Repository; import org.eclipse.jgit.revwalk.RevCommit; import com.gitblit.Constants; import com.gitblit.Keys; import com.gitblit.models.GitNote; import com.gitblit.models.PathModel.PathChangeModel; import com.gitblit.models.SubmoduleModel; import com.gitblit.models.UserModel; import com.gitblit.servlet.RawServlet; import com.gitblit.utils.DiffUtils; import com.gitblit.utils.DiffUtils.DiffComparator; import com.gitblit.utils.DiffUtils.DiffOutput; import com.gitblit.utils.DiffUtils.DiffOutputType; import com.gitblit.utils.JGitUtils; import com.gitblit.wicket.CacheControl; import com.gitblit.wicket.GitBlitWebSession; import com.gitblit.wicket.CacheControl.LastModified; import com.gitblit.wicket.WicketUtils; import com.gitblit.wicket.panels.CommitHeaderPanel; import com.gitblit.wicket.panels.CommitLegendPanel; import com.gitblit.wicket.panels.DiffStatPanel; import com.gitblit.wicket.panels.AvatarImage; import com.gitblit.wicket.panels.LinkPanel; import com.gitblit.wicket.panels.RefsPanel; @CacheControl(LastModified.BOOT) public class CommitDiffPage extends RepositoryPage { private static final long serialVersionUID = 1L; public CommitDiffPage(PageParameters params) { super(params); final Repository r = getRepository(); final RevCommit commit = getCommit(); final DiffComparator diffComparator = WicketUtils.getDiffComparator(params); List<String> parents = new ArrayList<String>(); if (commit.getParentCount() > 0) { for (RevCommit parent : commit.getParents()) { parents.add(parent.name()); } } // commit page links if (parents.size() == 0) { add(new Label("parentLink", getString("gb.none"))); } else { add(new LinkPanel("parentLink", null, parents.get(0).substring(0, 8), CommitDiffPage.class, newCommitParameter(parents.get(0)))); } add(new BookmarkablePageLink<Void>("patchLink", PatchPage.class, WicketUtils.newObjectParameter(repositoryName, objectId))); add(new BookmarkablePageLink<Void>("commitLink", CommitPage.class, WicketUtils.newObjectParameter(repositoryName, objectId))); add(new LinkPanel("whitespaceLink", null, getString(diffComparator.getOpposite().getTranslationKey()), CommitDiffPage.class, WicketUtils.newDiffParameter(repositoryName, objectId, diffComparator.getOpposite()))); add(new CommitHeaderPanel("commitHeader", repositoryName, commit)); final List<String> imageExtensions = app().settings().getStrings(Keys.web.imageExtensions); final ImageDiffHandler handler = new ImageDiffHandler(this, repositoryName, parents.isEmpty() ? null : parents.get(0), commit.getName(), imageExtensions); final int tabLength = app().settings().getInteger(Keys.web.tabLength, 4); final DiffOutput diff = DiffUtils.getCommitDiff(r, commit, diffComparator, DiffOutputType.HTML, handler, tabLength); if (handler.getImgDiffCount() > 0) { addBottomScript("scripts/imgdiff.js"); // Tiny support script for image diffs } // add commit diffstat int insertions = 0; int deletions = 0; for (PathChangeModel pcm : diff.stat.paths) { insertions += pcm.insertions; deletions += pcm.deletions; } add(new DiffStatPanel("diffStat", insertions, deletions)); addFullText("fullMessage", commit.getFullMessage()); // git notes List<GitNote> notes = JGitUtils.getNotesOnCommit(r, commit); ListDataProvider<GitNote> notesDp = new ListDataProvider<GitNote>(notes); DataView<GitNote> notesView = new DataView<GitNote>("notes", notesDp) { private static final long serialVersionUID = 1L; @Override public void populateItem(final Item<GitNote> item) { GitNote entry = item.getModelObject(); item.add(new RefsPanel("refName", repositoryName, Arrays.asList(entry.notesRef))); item.add(createPersonPanel("authorName", entry.notesRef.getAuthorIdent(), Constants.SearchType.AUTHOR)); item.add(new AvatarImage("noteAuthorAvatar", entry.notesRef.getAuthorIdent())); item.add(WicketUtils.createTimestampLabel("authorDate", entry.notesRef.getAuthorIdent().getWhen(), getTimeZone(), getTimeUtils())); item.add(new Label("noteContent", bugtraqProcessor().processPlainCommitMessage(getRepository(), repositoryName, entry.content)).setEscapeModelStrings(false)); } }; add(notesView.setVisible(notes.size() > 0)); // changed paths list add(new CommitLegendPanel("commitLegend", diff.stat.paths)); ListDataProvider<PathChangeModel> pathsDp = new ListDataProvider<PathChangeModel>(diff.stat.paths); DataView<PathChangeModel> pathsView = new DataView<PathChangeModel>("changedPath", pathsDp) { private static final long serialVersionUID = 1L; int counter; @Override public void populateItem(final Item<PathChangeModel> item) { final PathChangeModel entry = item.getModelObject(); Label changeType = new Label("changeType", ""); WicketUtils.setChangeTypeCssClass(changeType, entry.changeType); setChangeTypeTooltip(changeType, entry.changeType); item.add(changeType); item.add(new DiffStatPanel("diffStat", entry.insertions, entry.deletions, true)); item.add(WicketUtils.setHtmlTooltip(new Label("filestore", ""), getString("gb.filestore")) .setVisible(entry.isFilestoreItem())); boolean hasSubmodule = false; String submodulePath = null; if (entry.isTree()) { // tree item.add(new LinkPanel("pathName", null, entry.path, TreePage.class, WicketUtils.newPathParameter(repositoryName, entry.commitId, entry.path))); } else if (entry.isSubmodule()) { // submodule String submoduleId = entry.objectId; SubmoduleModel submodule = getSubmodule(entry.path); submodulePath = submodule.gitblitPath; hasSubmodule = submodule.hasSubmodule; // add relative link item.add(new LinkPanel("pathName", "list", entry.path + " @ " + getShortObjectId(submoduleId), "#n" + entry.objectId)); } else { // add relative link if (entry.isFilestoreItem()) { item.add(new LinkPanel("pathName", "list", entry.path, new Link<Object>("link", null) { private static final long serialVersionUID = 1L; @Override public void onClick() { IResourceStream resourceStream = new AbstractResourceStreamWriter() { private static final long serialVersionUID = 1L; @Override public void write(OutputStream output) { UserModel user = GitBlitWebSession.get().getUser(); user = user == null ? UserModel.ANONYMOUS : user; app().filestore().downloadBlob(entry.getFilestoreOid(), user, getRepositoryModel(), output); } }; ResourceStreamRequestHandler resourceStreamRequestHandler = new ResourceStreamRequestHandler( resourceStream, entry.path); getRequestCycle().scheduleRequestHandlerAfterCurrent(resourceStreamRequestHandler); } })); } else { item.add(new LinkPanel("pathName", "list", entry.path, "#n" + entry.objectId)); } } // quick links if (entry.isSubmodule()) { item.add(new ExternalLink("raw", "").setEnabled(false)); // submodule item.add(new ExternalLink("patch", "").setEnabled(false)); item.add(new BookmarkablePageLink<Void>("view", CommitPage.class, WicketUtils.newObjectParameter(submodulePath, entry.objectId)) .setEnabled(hasSubmodule)); item.add(new ExternalLink("blame", "").setEnabled(false)); item.add(new BookmarkablePageLink<Void>("history", HistoryPage.class, WicketUtils.newPathParameter(repositoryName, entry.commitId, entry.path)) .setEnabled(!entry.changeType.equals(ChangeType.ADD))); } else { // tree or blob item.add(new BookmarkablePageLink<Void>("patch", PatchPage.class, WicketUtils.newPathParameter(repositoryName, entry.commitId, entry.path)) .setEnabled(!entry.changeType.equals(ChangeType.ADD) && !entry.changeType.equals(ChangeType.DELETE))); if (entry.isFilestoreItem()) { item.add(new Link<Object>("view", null) { private static final long serialVersionUID = 1L; @Override public void onClick() { IResourceStream resourceStream = new AbstractResourceStreamWriter() { private static final long serialVersionUID = 1L; @Override public void write(OutputStream output) { UserModel user = GitBlitWebSession.get().getUser(); user = user == null ? UserModel.ANONYMOUS : user; app().filestore().downloadBlob(entry.getFilestoreOid(), user, getRepositoryModel(), output); } }; ResourceStreamRequestHandler resourceStreamRequestHandler = new ResourceStreamRequestHandler( resourceStream, entry.path); getRequestCycle().scheduleRequestHandlerAfterCurrent(resourceStreamRequestHandler); } }); item.add(new Link<Object>("raw", null) { private static final long serialVersionUID = 1L; @Override public void onClick() { IResourceStream resourceStream = new AbstractResourceStreamWriter() { private static final long serialVersionUID = 1L; @Override public void write(OutputStream output) { UserModel user = GitBlitWebSession.get().getUser(); user = user == null ? UserModel.ANONYMOUS : user; app().filestore().downloadBlob(entry.getFilestoreOid(), user, getRepositoryModel(), output); } }; ResourceStreamRequestHandler resourceStreamRequestHandler = new ResourceStreamRequestHandler( resourceStream, entry.path); getRequestCycle().scheduleRequestHandlerAfterCurrent(resourceStreamRequestHandler); } }); } else { item.add(new BookmarkablePageLink<Void>("view", BlobPage.class, WicketUtils.newPathParameter(repositoryName, entry.commitId, entry.path)) .setEnabled(!entry.changeType.equals(ChangeType.DELETE))); item.add(new ExternalLink("raw", RawServlet.asLink(getContextUrl(), repositoryName, entry.commitId, entry.path)) .setEnabled(!entry.changeType.equals(ChangeType.DELETE))); } item.add(new BookmarkablePageLink<Void>("blame", BlamePage.class, WicketUtils.newPathParameter(repositoryName, entry.commitId, entry.path)) .setEnabled(!entry.changeType.equals(ChangeType.ADD) && !entry.changeType.equals(ChangeType.DELETE))); item.add(new BookmarkablePageLink<Void>("history", HistoryPage.class, WicketUtils.newPathParameter(repositoryName, entry.commitId, entry.path)) .setEnabled(!entry.changeType.equals(ChangeType.ADD))); } WicketUtils.setAlternatingBackground(item, counter); counter++; } }; add(pathsView); add(new Label("diffText", diff.content).setEscapeModelStrings(false)); } @Override protected String getPageName() { return getString("gb.commitdiff"); } @Override protected boolean isCommitPage() { return true; } @Override protected Class<? extends BasePage> getRepoNavPageClass() { return LogPage.class; } }