Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2010 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/ package org.eclipse.egit.internal.relengtools; import java.io.DataInputStream; import java.io.EOFException; import java.io.IOException; import java.lang.reflect.InvocationTargetException; import java.net.HttpURLConnection; import java.net.URL; import java.net.URLConnection; import java.util.Map; import java.util.Set; import java.util.TreeMap; import java.util.TreeSet; import java.util.regex.Matcher; import java.util.regex.Pattern; import org.eclipse.core.resources.IProject; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.core.runtime.SubProgressMonitor; import org.eclipse.egit.core.GitTag; import org.eclipse.egit.core.project.RepositoryMapping; import org.eclipse.jface.operation.IRunnableWithProgress; import org.eclipse.jgit.api.Git; import org.eclipse.jgit.api.LogCommand; import org.eclipse.jgit.lib.Repository; import org.eclipse.jgit.revwalk.RevCommit; import org.eclipse.ui.statushandlers.StatusManager; public class GetBugsOperation { private static final String BUG_DATABASE_PREFIX = "https://bugs.eclipse.org/bugs/show_bug.cgi?id="; private static final String BUG_DATABASE_POSTFIX = "&ctype=xml"; private static final String SUM_OPEN_TAG = "<short_desc>"; private static final String SUM_CLOSE_TAG = "</short_desc>"; private static final String STATUS_OPEN_TAG = "<bug_status>"; private static final String STATUS_CLOSE_TAG = "</bug_status"; private static final String RES_OPEN_TAG = "<resolution>"; private static final String RES_CLOSE_TAG = "</resolution>"; private static final String RESOLVED = "RESOLVED"; private static final String VERIFIED = "VERIFIED"; private final ReleaseWizard wizard; private final Pattern bugPattern; protected GetBugsOperation(ReleaseWizard wizard, Object syncInfoSet) { this.wizard = wizard; bugPattern = Pattern.compile("bug (\\d+)", Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE); } protected void run(final BuildNotesPage page) { try { wizard.getContainer().run(true, true, new IRunnableWithProgress() { @Override public void run(IProgressMonitor monitor) { final int totalWork = 101; monitor.beginTask(Messages.getString("GetBugsOperation.0"), totalWork); //$NON-NLS-1$ final IProject[] selectedProjects = wizard.getSelectedProjects(); // task 1 -- get bug numbers from comments Set<Integer> bugTree; try { bugTree = getBugNumbersFromComments(selectedProjects, new SubProgressMonitor(monitor, 85, SubProgressMonitor.SUPPRESS_SUBTASK_LABEL)); } catch (final Exception e) { monitor.done(); return; } // task 2 -- create map of bugs and summaries final Integer[] bugs = bugTree.toArray(new Integer[0]); final Map<Integer, String> map = getBugzillaSummaries(bugs, new SubProgressMonitor(monitor, 15, SubProgressMonitor.SUPPRESS_SUBTASK_LABEL)); page.getShell().getDisplay().asyncExec(new Runnable() { @Override public void run() { page.setMap(map); } }); monitor.done(); } }); } catch (final InterruptedException e) { e.printStackTrace(); } catch (final InvocationTargetException e) { e.printStackTrace(); } } protected Set<Integer> getBugNumbersFromComments(IProject[] projects, IProgressMonitor monitor) throws Exception { monitor.beginTask("Scanning comments for bug numbers", projects.length); final Set<Integer> set = new TreeSet<Integer>(); for (int i = 0; i < projects.length; i++) { getBugNumbersForProject(projects[i], monitor, set); monitor.worked(1); } monitor.done(); return set; } private void getBugNumbersForProject(IProject project, IProgressMonitor monitor, Set<Integer> set) throws Exception { final RepositoryMapping rm = RepositoryMapping.getMapping(project); final Repository repository = rm.getRepository(); final RevCommit previousCommit = ShowInfoHandler.getCommitForTag(repository, getProjectTag(project).getName()); final RevCommit latestCommit = ShowInfoHandler.getLatestCommitFor(rm, repository, project); final Git git = new Git(repository); final LogCommand log = git.log(); log.addRange(previousCommit, latestCommit); for (final RevCommit commit : log.call()) { findBugNumber(commit.getFullMessage(), set); } } private GitTag getProjectTag(IProject project) { final MapEntry mapEntry = wizard.getMapProject().getMapEntry(project); if (mapEntry != null) return mapEntry.getTag(); return MapEntry.DEFAULT; } protected void findBugNumber(String comment, Set<Integer> set) { if (comment == null) { return; } final Matcher matcher = bugPattern.matcher(comment); while (matcher.find()) { final Integer bugNumber = new Integer(matcher.group(1)); set.add(bugNumber); } } /* * Method uses set of bug numbers to query bugzilla and get summary of each * bug */ protected Map<Integer, String> getBugzillaSummaries(Integer[] bugs, IProgressMonitor monitor) { monitor.beginTask(Messages.getString("GetBugsOperation.1"), bugs.length + 1); //$NON-NLS-1$ HttpURLConnection hURL; DataInputStream in; URLConnection url; StringBuffer buffer; final TreeMap<Integer, String> map = new TreeMap<Integer, String>(); for (int i = 0; i < bugs.length; i++) { try { url = (new URL(BUG_DATABASE_PREFIX + bugs[i] + BUG_DATABASE_POSTFIX).openConnection()); if (url instanceof HttpURLConnection) { hURL = (HttpURLConnection) url; hURL.setAllowUserInteraction(true); hURL.connect(); in = new DataInputStream(hURL.getInputStream()); buffer = new StringBuffer(); try { if (hURL.getResponseCode() != HttpURLConnection.HTTP_OK) { throw new IOException("Bad response code"); } while (true) { buffer.append((char) in.readUnsignedByte()); } } catch (final EOFException e) { hURL.disconnect(); } final String webPage = buffer.toString(); final int summaryStartIndex = webPage.indexOf(SUM_OPEN_TAG); final int summaryEndIndex = webPage.indexOf(SUM_CLOSE_TAG, summaryStartIndex); if (summaryStartIndex != -1 & summaryEndIndex != -1) { String summary = webPage.substring(summaryStartIndex + SUM_OPEN_TAG.length(), summaryEndIndex); summary = summary.replaceAll(""", "\""); summary = summary.replaceAll("<", "<"); summary = summary.replaceAll(">", ">"); summary = summary.replaceAll("&", "&"); summary = summary.replaceAll("'", "'"); final int statusStartIndex = webPage.indexOf(STATUS_OPEN_TAG); final int statusEndIndex = webPage.indexOf(STATUS_CLOSE_TAG); if (statusStartIndex != -1 && statusEndIndex != -1) { final String bugStatus = webPage.substring(statusStartIndex + STATUS_OPEN_TAG.length(), statusEndIndex); if (bugStatus.equalsIgnoreCase(RESOLVED) || bugStatus.equalsIgnoreCase(VERIFIED)) { final int resStartIndex = webPage.indexOf(RES_OPEN_TAG); final int resEndIndex = webPage.indexOf(RES_CLOSE_TAG); if (resStartIndex != -1 && resEndIndex != -1) { final String resolution = webPage .substring(resStartIndex + RES_OPEN_TAG.length(), resEndIndex); if (resolution != null && !resolution.equals("")) { summary = summary + " (" + resolution + ")"; } } } else { summary = summary + " (" + bugStatus + ")"; } } map.put(bugs[i], summary); } } } catch (final IOException e) { StatusManager.getManager().handle( new Status(IStatus.ERROR, "id", Messages.getString("GetBugsOperation.Error"), e), StatusManager.SHOW | StatusManager.LOG); } monitor.worked(1); } monitor.done(); return map; } }