| // Copyright (C) 2018 The Android Open Source Project |
| // |
| // 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.googlesource.gerrit.plugins.renameproject.database; |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.common.collect.ImmutableSet; |
| import com.google.gerrit.reviewdb.client.Account; |
| import com.google.gerrit.reviewdb.client.Change; |
| import com.google.gerrit.reviewdb.client.Project; |
| import com.google.gerrit.server.CurrentUser; |
| import com.google.gerrit.server.ServerInitiated; |
| import com.google.gerrit.server.account.AccountState; |
| import com.google.gerrit.server.account.AccountsUpdate; |
| import com.google.gerrit.server.account.ProjectWatches.NotifyType; |
| import com.google.gerrit.server.account.ProjectWatches.ProjectWatchKey; |
| import com.google.gerrit.server.git.GitRepositoryManager; |
| import com.google.gerrit.server.notedb.ChangeNotes; |
| import com.google.gerrit.server.notedb.ChangeNotes.Factory.ChangeNotesResult; |
| import com.google.gerrit.server.notedb.ChangeUpdate; |
| import com.google.gerrit.server.query.account.InternalAccountQuery; |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| import com.google.inject.Singleton; |
| import com.googlesource.gerrit.plugins.renameproject.monitor.ProgressMonitor; |
| import java.io.IOException; |
| import java.time.Instant; |
| import java.util.ArrayList; |
| import java.util.Date; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.stream.Stream; |
| import org.eclipse.jgit.errors.ConfigInvalidException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| @Singleton |
| public class DatabaseRenameHandler { |
| private static final Logger log = LoggerFactory.getLogger(DatabaseRenameHandler.class); |
| |
| private final ChangeNotes.Factory schemaFactory; |
| private final ChangeUpdate.Factory updateFactory; |
| private final GitRepositoryManager repoManager; |
| private final Provider<CurrentUser> userProvider; |
| private final Provider<InternalAccountQuery> accountQueryProvider; |
| private final Provider<AccountsUpdate> accountsUpdateProvider; |
| private final Map<Change.Id, ChangeNotes> changeNotes = new HashMap<>(); |
| |
| private Project.NameKey oldProjectKey; |
| |
| @Inject |
| public DatabaseRenameHandler( |
| ChangeNotes.Factory schemaFactory, |
| ChangeUpdate.Factory updateFactory, |
| GitRepositoryManager repoManager, |
| Provider<CurrentUser> userProvider, |
| Provider<InternalAccountQuery> accountQueryProvider, |
| @ServerInitiated Provider<AccountsUpdate> accountsUpdateProvider) { |
| this.accountQueryProvider = accountQueryProvider; |
| this.schemaFactory = schemaFactory; |
| this.updateFactory = updateFactory; |
| this.repoManager = repoManager; |
| this.userProvider = userProvider; |
| this.accountsUpdateProvider = accountsUpdateProvider; |
| } |
| |
| public List<Change.Id> getChangeIds(Project.NameKey oldProjectKey) throws IOException { |
| log.debug("Starting to retrieve changes from the DB for project {}", oldProjectKey.get()); |
| this.oldProjectKey = oldProjectKey; |
| |
| List<Change.Id> changeIds = new ArrayList<>(); |
| Stream<ChangeNotesResult> changes = |
| schemaFactory.scan(repoManager.openRepository(oldProjectKey), oldProjectKey); |
| Iterator<ChangeNotesResult> iterator = changes.iterator(); |
| while (iterator.hasNext()) { |
| ChangeNotesResult change = iterator.next(); |
| Change.Id changeId = change.id(); |
| changeIds.add(changeId); |
| changeNotes.put(changeId, change.notes()); |
| } |
| log.debug( |
| "Number of changes related to the project {} are {}", |
| oldProjectKey.get(), |
| changeIds.size()); |
| return changeIds; |
| } |
| |
| public List<Change.Id> rename( |
| List<Change.Id> changes, Project.NameKey newProjectKey, ProgressMonitor pm) |
| throws IOException { |
| pm.beginTask("Updating changes in the database"); |
| log.debug("Updating the changes in the DB related to project {}", oldProjectKey.get()); |
| List<ChangeUpdate> updates = getChangeUpdates(changes, newProjectKey); |
| updateWatchEntries(newProjectKey); |
| List<Change> updated = new ArrayList<>(); |
| try { |
| for (ChangeUpdate update : updates) { |
| update.commit(); |
| updated.add(update.getChange()); |
| } |
| } catch (IOException e) { |
| // TODO(mmiller): Consider covering this path with tests, albeit exceptional. |
| log.error( |
| "Failed to update changes in the DB for the project {}, rolling back the operation.", |
| oldProjectKey.get()); |
| rollback(updated, newProjectKey); |
| throw e; |
| } |
| log.debug( |
| "Successfully updated the changes in the DB related to project {}", oldProjectKey.get()); |
| return changes; |
| } |
| |
| private List<ChangeUpdate> getChangeUpdates(List<Change.Id> changeIds, Project.NameKey nameKey) { |
| List<ChangeUpdate> updates = new ArrayList<>(); |
| Date from = Date.from(Instant.now()); |
| changeIds.forEach( |
| changeId -> { |
| ChangeNotes notes = schemaFactory.create(nameKey, changeId); |
| ChangeUpdate update = updateFactory.create(notes, userProvider.get(), from); |
| updates.add(update); |
| }); |
| return updates; |
| } |
| |
| private void rollback(List<Change> changes, Project.NameKey newProjectKey) { |
| Date from = Date.from(Instant.now()); |
| changes.forEach( |
| change -> { |
| ChangeNotes notes = changeNotes.get(change.getId()); |
| ChangeUpdate revert = updateFactory.create(notes, userProvider.get(), from); |
| revert.setRevertOf(change.getChangeId()); |
| try { |
| revert.commit(); |
| } catch (IOException ex) { |
| log.error( |
| "Failed to rollback change {} in DB from project {} to {}; rolling back others still.", |
| change.getChangeId(), |
| newProjectKey.get(), |
| oldProjectKey.get()); |
| } |
| }); |
| } |
| |
| private void updateWatchEntries(Project.NameKey newProjectKey) { |
| for (AccountState a : accountQueryProvider.get().byWatchedProject(newProjectKey)) { |
| Account.Id accountId = a.getAccount().getId(); |
| ImmutableMap<ProjectWatchKey, ImmutableSet<NotifyType>> projectWatches = |
| a.getProjectWatches(); |
| Map<ProjectWatchKey, Set<NotifyType>> newProjectWatches = new HashMap<>(); |
| for (ProjectWatchKey watchKey : a.getProjectWatches().keySet()) { |
| if (oldProjectKey.equals(watchKey.project())) { |
| newProjectWatches.put(watchKey, projectWatches.get(watchKey)); |
| try { |
| accountsUpdateProvider |
| .get() |
| .update( |
| "Update watch entry", |
| accountId, |
| (accountState, update) -> |
| update.updateProjectWatches(newProjectWatches).build()); |
| } catch (ConfigInvalidException e) { |
| log.error( |
| "Updating watch entry for user {} in project {} failed. Watch config found invalid.", |
| a.getUserName(), |
| newProjectKey.get(), |
| e); |
| } catch (IOException e) { |
| log.error( |
| "Updating watch entry for user {} in project {} failed.", |
| a.getUserName(), |
| newProjectKey.get(), |
| e); |
| } |
| } |
| } |
| } |
| } |
| } |