Java tutorial
/******************************************************************************* * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org> * Copyright (C) 2008, Google Inc. * Copyright (C) 2009, Mykola Nikishov <mn@mn.com.ua> * * 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 *******************************************************************************/ package org.eclipse.egit.core.op; import java.io.File; import java.io.IOException; import java.util.Arrays; import java.util.Collection; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import java.util.Set; import org.eclipse.core.resources.IProject; import org.eclipse.core.resources.IResource; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.MultiStatus; import org.eclipse.core.runtime.NullProgressMonitor; import org.eclipse.core.runtime.Path; import org.eclipse.core.runtime.Status; import org.eclipse.core.runtime.SubProgressMonitor; import org.eclipse.core.runtime.jobs.ISchedulingRule; import org.eclipse.core.runtime.jobs.MultiRule; import org.eclipse.egit.core.Activator; import org.eclipse.egit.core.CoreText; import org.eclipse.egit.core.GitProvider; import org.eclipse.egit.core.internal.trace.GitTraceLocation; import org.eclipse.egit.core.project.GitProjectData; import org.eclipse.egit.core.project.RepositoryFinder; import org.eclipse.egit.core.project.RepositoryMapping; import org.eclipse.jgit.lib.Constants; import org.eclipse.osgi.util.NLS; import org.eclipse.team.core.RepositoryProvider; /** * Connects Eclipse to an existing Git repository */ public class ConnectProviderOperation implements IEGitOperation { private final Map<IProject, File> projects = new HashMap<IProject, File>(); /** * Create a new connection operation to execute within the workspace. * <p> * Uses <code>.git</code> as a default relative path to repository. * @see #ConnectProviderOperation(IProject, File) * * @param proj * the project to connect to the Git team provider. */ public ConnectProviderOperation(final IProject proj) { this(proj, proj.getLocation().append(Constants.DOT_GIT).toFile()); } /** * Create a new connection operation to execute within the workspace. * * @param proj * the project to connect to the Git team provider. * @param pathToRepo * absolute path to the repository */ public ConnectProviderOperation(final IProject proj, File pathToRepo) { this.projects.put(proj, pathToRepo); } /** * Create a new connection operation to execute within the workspace. * * @param projects * the projects to connect to the Git team provider. */ public ConnectProviderOperation(final Map<IProject, File> projects) { this.projects.putAll(projects); } /* (non-Javadoc) * @see org.eclipse.egit.core.op.IEGitOperation#execute(org.eclipse.core.runtime.IProgressMonitor) */ public void execute(IProgressMonitor m) throws CoreException { IProgressMonitor monitor; if (m == null) { monitor = new NullProgressMonitor(); } else { monitor = m; } monitor.beginTask(CoreText.ConnectProviderOperation_connecting, 100 * projects.size()); try { for (Iterator iterator = projects.keySet().iterator(); iterator.hasNext();) { IProject project = (IProject) iterator.next(); monitor.setTaskName( NLS.bind(CoreText.ConnectProviderOperation_ConnectingProject, project.getName())); // TODO is this the right location? if (GitTraceLocation.CORE.isActive()) GitTraceLocation.getTrace().trace(GitTraceLocation.CORE.getLocation(), "Locating repository for " + project); //$NON-NLS-1$ Collection<RepositoryMapping> repos = new RepositoryFinder(project) .find(new SubProgressMonitor(monitor, 40)); File suggestedRepo = projects.get(project); RepositoryMapping actualMapping = findActualRepository(repos, suggestedRepo); if (actualMapping != null) { GitProjectData projectData = new GitProjectData(project); try { projectData.setRepositoryMappings(Arrays.asList(actualMapping)); projectData.store(); } catch (CoreException ce) { try { GitProjectData.delete(project); } catch (IOException e) { MultiStatus status = new MultiStatus(Activator.getPluginId(), IStatus.ERROR, e.getMessage(), e); status.add(new Status(IStatus.ERROR, Activator.getPluginId(), ce.getMessage(), ce)); throw new CoreException(status); } throw ce; } catch (RuntimeException ce) { try { GitProjectData.delete(project); } catch (IOException e) { MultiStatus status = new MultiStatus(Activator.getPluginId(), IStatus.ERROR, e.getMessage(), e); status.add(new Status(IStatus.ERROR, Activator.getPluginId(), ce.getMessage(), ce)); throw new CoreException(status); } throw ce; } RepositoryProvider.map(project, GitProvider.class.getName()); projectData = GitProjectData.get(project); project.refreshLocal(IResource.DEPTH_INFINITE, new SubProgressMonitor(monitor, 50)); monitor.worked(10); } else { // TODO is this the right location? if (GitTraceLocation.CORE.isActive()) GitTraceLocation.getTrace().trace(GitTraceLocation.CORE.getLocation(), "Attempted to share project without repository ignored :" //$NON-NLS-1$ + project); monitor.worked(60); } } } finally { monitor.done(); } } /* (non-Javadoc) * @see org.eclipse.egit.core.op.IEGitOperation#getSchedulingRule() */ public ISchedulingRule getSchedulingRule() { Set<IProject> projectSet = projects.keySet(); return new MultiRule(projectSet.toArray(new IProject[projectSet.size()])); } /** * @param repos * available repositories * @param suggestedRepo * relative path to git repository * @return a repository mapping which corresponds to a suggested repository * location, <code>null</code> otherwise */ private RepositoryMapping findActualRepository(Collection<RepositoryMapping> repos, File suggestedRepo) { for (RepositoryMapping rm : repos) { if (rm.getGitDirAbsolutePath().equals(Path.fromOSString(suggestedRepo.getPath()))) return rm; } return null; } }