| // Copyright (C) 2013 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.google.gerrit.server.restapi.change; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| import static java.util.stream.Collectors.toSet; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import com.google.common.collect.Lists; |
| import com.google.common.flogger.FluentLogger; |
| import com.google.gerrit.common.Nullable; |
| import com.google.gerrit.entities.Change; |
| import com.google.gerrit.entities.PatchSet; |
| import com.google.gerrit.entities.Project; |
| import com.google.gerrit.extensions.api.changes.RelatedChangeAndCommitInfo; |
| import com.google.gerrit.extensions.api.changes.RelatedChangesInfo; |
| import com.google.gerrit.extensions.common.CommitInfo; |
| import com.google.gerrit.extensions.restapi.Response; |
| import com.google.gerrit.extensions.restapi.RestReadView; |
| import com.google.gerrit.index.IndexConfig; |
| import com.google.gerrit.server.ChangeUtil; |
| import com.google.gerrit.server.CommonConverters; |
| import com.google.gerrit.server.PatchSetUtil; |
| import com.google.gerrit.server.change.RevisionResource; |
| import com.google.gerrit.server.notedb.ChangeNotes; |
| import com.google.gerrit.server.permissions.PermissionBackendException; |
| import com.google.gerrit.server.project.NoSuchProjectException; |
| import com.google.gerrit.server.query.change.ChangeData; |
| import com.google.gerrit.server.query.change.InternalChangeQuery; |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| import com.google.inject.Singleton; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.Set; |
| import org.eclipse.jgit.errors.RepositoryNotFoundException; |
| import org.eclipse.jgit.revwalk.RevCommit; |
| |
| @Singleton |
| public class GetRelated implements RestReadView<RevisionResource> { |
| private static final FluentLogger logger = FluentLogger.forEnclosingClass(); |
| |
| private final Provider<InternalChangeQuery> queryProvider; |
| private final PatchSetUtil psUtil; |
| private final RelatedChangesSorter sorter; |
| private final IndexConfig indexConfig; |
| private final ChangeData.Factory changeDataFactory; |
| |
| @Inject |
| GetRelated( |
| Provider<InternalChangeQuery> queryProvider, |
| PatchSetUtil psUtil, |
| RelatedChangesSorter sorter, |
| IndexConfig indexConfig, |
| ChangeData.Factory changeDataFactory) { |
| this.queryProvider = queryProvider; |
| this.psUtil = psUtil; |
| this.sorter = sorter; |
| this.indexConfig = indexConfig; |
| this.changeDataFactory = changeDataFactory; |
| } |
| |
| @Override |
| public Response<RelatedChangesInfo> apply(RevisionResource rsrc) |
| throws RepositoryNotFoundException, IOException, NoSuchProjectException, |
| PermissionBackendException { |
| RelatedChangesInfo relatedChangesInfo = new RelatedChangesInfo(); |
| relatedChangesInfo.changes = getRelated(rsrc); |
| return Response.ok(relatedChangesInfo); |
| } |
| |
| public List<RelatedChangeAndCommitInfo> getRelated(RevisionResource rsrc) |
| throws IOException, PermissionBackendException { |
| Set<String> groups = getAllGroups(rsrc.getNotes(), psUtil); |
| logger.atFine().log("groups = %s", groups); |
| if (groups.isEmpty()) { |
| return Collections.emptyList(); |
| } |
| |
| List<ChangeData> cds = |
| InternalChangeQuery.byProjectGroups( |
| queryProvider, indexConfig, rsrc.getChange().getProject(), groups); |
| if (cds.isEmpty()) { |
| return Collections.emptyList(); |
| } |
| if (cds.size() == 1 && cds.get(0).getId().equals(rsrc.getChange().getId())) { |
| return Collections.emptyList(); |
| } |
| List<RelatedChangeAndCommitInfo> result = new ArrayList<>(cds.size()); |
| |
| boolean isEdit = rsrc.getEdit().isPresent(); |
| PatchSet basePs = isEdit ? rsrc.getEdit().get().getBasePatchSet() : rsrc.getPatchSet(); |
| logger.atFine().log("isEdit = %s, basePs = %s", isEdit, basePs); |
| |
| cds = reloadChangeIfStale(cds, rsrc.getChange(), basePs); |
| |
| for (RelatedChangesSorter.PatchSetData d : sorter.sort(cds, basePs)) { |
| PatchSet ps = d.patchSet(); |
| RevCommit commit; |
| if (isEdit && ps.id().equals(basePs.id())) { |
| // Replace base of an edit with the edit itself. |
| ps = rsrc.getPatchSet(); |
| commit = rsrc.getEdit().get().getEditCommit(); |
| logger.atFine().log( |
| "Replaced base of edit (patch set %s, commit %s) with edit (patch set %s, commit %s)", |
| d.patchSet().id(), d.commit(), ps.id(), commit); |
| } else { |
| commit = d.commit(); |
| } |
| result.add(newChangeAndCommit(rsrc.getProject(), d.data().change(), ps, commit)); |
| } |
| |
| if (result.size() == 1) { |
| RelatedChangeAndCommitInfo r = result.get(0); |
| if (r.commit != null && r.commit.commit.equals(rsrc.getPatchSet().commitId().name())) { |
| return Collections.emptyList(); |
| } |
| } |
| return result; |
| } |
| |
| @VisibleForTesting |
| public static Set<String> getAllGroups(ChangeNotes notes, PatchSetUtil psUtil) { |
| return psUtil.byChange(notes).stream().flatMap(ps -> ps.groups().stream()).collect(toSet()); |
| } |
| |
| private List<ChangeData> reloadChangeIfStale( |
| List<ChangeData> changeDatasFromIndex, Change wantedChange, PatchSet wantedPs) { |
| checkArgument( |
| wantedChange.getId().equals(wantedPs.id().changeId()), |
| "change of wantedPs (%s) doesn't match wantedChange (%s)", |
| wantedPs.id().changeId(), |
| wantedChange.getId()); |
| |
| List<ChangeData> changeDatas = new ArrayList<>(changeDatasFromIndex.size() + 1); |
| changeDatas.addAll(changeDatasFromIndex); |
| |
| // Reload the change in case the patch set is absent. |
| changeDatas.stream() |
| .filter( |
| cd -> cd.getId().equals(wantedPs.id().changeId()) && cd.patchSet(wantedPs.id()) == null) |
| .forEach(ChangeData::reloadChange); |
| |
| if (changeDatas.stream().noneMatch(cd -> cd.getId().equals(wantedPs.id().changeId()))) { |
| // The change of the wanted patch set is missing in the result from the index. |
| // Load it from NoteDb and add it to the result. |
| changeDatas.add(changeDataFactory.create(wantedChange)); |
| } |
| |
| return changeDatas; |
| } |
| |
| static RelatedChangeAndCommitInfo newChangeAndCommit( |
| Project.NameKey project, @Nullable Change change, @Nullable PatchSet ps, RevCommit c) { |
| RelatedChangeAndCommitInfo info = new RelatedChangeAndCommitInfo(); |
| info.project = project.get(); |
| |
| if (change != null) { |
| info.changeId = change.getKey().get(); |
| info._changeNumber = change.getChangeId(); |
| info._revisionNumber = ps != null ? ps.number() : null; |
| PatchSet.Id curr = change.currentPatchSetId(); |
| info._currentRevisionNumber = curr != null ? curr.get() : null; |
| info.status = ChangeUtil.status(change).toUpperCase(Locale.US); |
| } |
| |
| info.commit = new CommitInfo(); |
| info.commit.commit = c.name(); |
| info.commit.parents = Lists.newArrayListWithCapacity(c.getParentCount()); |
| for (int i = 0; i < c.getParentCount(); i++) { |
| CommitInfo p = new CommitInfo(); |
| p.commit = c.getParent(i).name(); |
| info.commit.parents.add(p); |
| } |
| info.commit.author = CommonConverters.toGitPerson(c.getAuthorIdent()); |
| info.commit.subject = c.getShortMessage(); |
| return info; |
| } |
| } |