| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * 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.intellij.history.integration.revertion; |
| |
| import com.intellij.history.core.LocalHistoryFacade; |
| import com.intellij.history.core.changes.ChangeVisitor; |
| import com.intellij.history.core.changes.StructuralChange; |
| import com.intellij.history.core.revisions.Revision; |
| import com.intellij.history.integration.IdeaGateway; |
| import com.intellij.history.integration.LocalHistoryBundle; |
| import com.intellij.openapi.application.Result; |
| import com.intellij.openapi.command.WriteCommandAction; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.util.diff.FilesTooBigForDiffException; |
| import com.intellij.util.text.DateFormatUtil; |
| |
| import java.io.IOException; |
| import java.util.*; |
| |
| public abstract class Reverter { |
| private final Project myProject; |
| protected LocalHistoryFacade myVcs; |
| protected IdeaGateway myGateway; |
| |
| protected Reverter(Project p, LocalHistoryFacade vcs, IdeaGateway gw) { |
| myProject = p; |
| myVcs = vcs; |
| myGateway = gw; |
| } |
| |
| public List<String> askUserForProceeding() throws IOException { |
| return Collections.emptyList(); |
| } |
| |
| public List<String> checkCanRevert() throws IOException { |
| if (!askForReadOnlyStatusClearing()) { |
| return Collections.singletonList(LocalHistoryBundle.message("revert.error.files.are.read.only")); |
| } |
| return Collections.emptyList(); |
| } |
| |
| protected boolean askForReadOnlyStatusClearing() throws IOException { |
| return myGateway.ensureFilesAreWritable(myProject, getFilesToClearROStatus()); |
| } |
| |
| protected List<VirtualFile> getFilesToClearROStatus() throws IOException { |
| final Set<VirtualFile> files = new HashSet<VirtualFile>(); |
| |
| myVcs.accept(selective(new ChangeVisitor() { |
| @Override |
| public void visit(StructuralChange c) throws StopVisitingException { |
| files.addAll(myGateway.getAllFilesFrom(c.getPath())); |
| } |
| })); |
| |
| return new ArrayList<VirtualFile>(files); |
| } |
| |
| protected ChangeVisitor selective(ChangeVisitor v) { |
| return v; |
| } |
| |
| public void revert() throws IOException { |
| try { |
| new WriteCommandAction(myProject, getCommandName()) { |
| @Override |
| protected void run(Result objectResult) throws Throwable { |
| myGateway.saveAllUnsavedDocuments(); |
| doRevert(); |
| myGateway.saveAllUnsavedDocuments(); |
| } |
| }.execute(); |
| } |
| catch (RuntimeException e) { |
| Throwable cause = e.getCause(); |
| if (cause instanceof IOException) { |
| throw (IOException)cause; |
| } |
| throw e; |
| } |
| } |
| |
| public String getCommandName() { |
| Revision to = getTargetRevision(); |
| String name = to.getChangeSetName(); |
| String date = DateFormatUtil.formatDateTime(to.getTimestamp()); |
| if (name != null) { |
| return LocalHistoryBundle.message("system.label.revert.to.change.date", name, date); |
| } |
| else { |
| return LocalHistoryBundle.message("system.label.revert.to.date", date); |
| } |
| } |
| |
| protected abstract Revision getTargetRevision(); |
| |
| protected abstract void doRevert() throws IOException, FilesTooBigForDiffException; |
| } |