| // 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 java.util.stream.Collectors.toSet; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import com.google.common.base.MoreObjects; |
| import com.google.common.collect.Lists; |
| import com.google.gerrit.common.Nullable; |
| import com.google.gerrit.extensions.common.CommitInfo; |
| import com.google.gerrit.extensions.restapi.RestReadView; |
| import com.google.gerrit.index.IndexConfig; |
| import com.google.gerrit.reviewdb.client.Change; |
| import com.google.gerrit.reviewdb.client.PatchSet; |
| import com.google.gerrit.reviewdb.client.Project; |
| import com.google.gerrit.reviewdb.server.ReviewDb; |
| 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.gwtorm.server.OrmException; |
| 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.Set; |
| import org.eclipse.jgit.errors.RepositoryNotFoundException; |
| import org.eclipse.jgit.revwalk.RevCommit; |
| |
| @Singleton |
| public class GetRelated implements RestReadView<RevisionResource> { |
| private final Provider<ReviewDb> db; |
| private final Provider<InternalChangeQuery> queryProvider; |
| private final PatchSetUtil psUtil; |
| private final RelatedChangesSorter sorter; |
| private final IndexConfig indexConfig; |
| |
| @Inject |
| GetRelated( |
| Provider<ReviewDb> db, |
| Provider<InternalChangeQuery> queryProvider, |
| PatchSetUtil psUtil, |
| RelatedChangesSorter sorter, |
| IndexConfig indexConfig) { |
| this.db = db; |
| this.queryProvider = queryProvider; |
| this.psUtil = psUtil; |
| this.sorter = sorter; |
| this.indexConfig = indexConfig; |
| } |
| |
| @Override |
| public RelatedInfo apply(RevisionResource rsrc) |
| throws RepositoryNotFoundException, IOException, OrmException, NoSuchProjectException, |
| PermissionBackendException { |
| RelatedInfo relatedInfo = new RelatedInfo(); |
| relatedInfo.changes = getRelated(rsrc); |
| return relatedInfo; |
| } |
| |
| private List<ChangeAndCommit> getRelated(RevisionResource rsrc) |
| throws OrmException, IOException, PermissionBackendException { |
| Set<String> groups = getAllGroups(rsrc.getNotes(), db.get(), psUtil); |
| 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<ChangeAndCommit> result = new ArrayList<>(cds.size()); |
| |
| boolean isEdit = rsrc.getEdit().isPresent(); |
| PatchSet basePs = isEdit ? rsrc.getEdit().get().getBasePatchSet() : rsrc.getPatchSet(); |
| |
| reloadChangeIfStale(cds, basePs); |
| |
| for (RelatedChangesSorter.PatchSetData d : sorter.sort(cds, basePs)) { |
| PatchSet ps = d.patchSet(); |
| RevCommit commit; |
| if (isEdit && ps.getId().equals(basePs.getId())) { |
| // Replace base of an edit with the edit itself. |
| ps = rsrc.getPatchSet(); |
| commit = rsrc.getEdit().get().getEditCommit(); |
| } else { |
| commit = d.commit(); |
| } |
| result.add(new ChangeAndCommit(rsrc.getProject(), d.data().change(), ps, commit)); |
| } |
| |
| if (result.size() == 1) { |
| ChangeAndCommit r = result.get(0); |
| if (r.commit != null && r.commit.commit.equals(rsrc.getPatchSet().getRevision().get())) { |
| return Collections.emptyList(); |
| } |
| } |
| return result; |
| } |
| |
| @VisibleForTesting |
| public static Set<String> getAllGroups(ChangeNotes notes, ReviewDb db, PatchSetUtil psUtil) |
| throws OrmException { |
| return psUtil |
| .byChange(db, notes) |
| .stream() |
| .flatMap(ps -> ps.getGroups().stream()) |
| .collect(toSet()); |
| } |
| |
| private void reloadChangeIfStale(List<ChangeData> cds, PatchSet wantedPs) throws OrmException { |
| for (ChangeData cd : cds) { |
| if (cd.getId().equals(wantedPs.getId().getParentKey())) { |
| if (cd.patchSet(wantedPs.getId()) == null) { |
| cd.reloadChange(); |
| } |
| } |
| } |
| } |
| |
| public static class RelatedInfo { |
| public List<ChangeAndCommit> changes; |
| } |
| |
| public static class ChangeAndCommit { |
| public String project; |
| public String changeId; |
| public CommitInfo commit; |
| public Integer _changeNumber; |
| public Integer _revisionNumber; |
| public Integer _currentRevisionNumber; |
| public String status; |
| |
| public ChangeAndCommit() {} |
| |
| ChangeAndCommit( |
| Project.NameKey project, @Nullable Change change, @Nullable PatchSet ps, RevCommit c) { |
| this.project = project.get(); |
| |
| if (change != null) { |
| changeId = change.getKey().get(); |
| _changeNumber = change.getChangeId(); |
| _revisionNumber = ps != null ? ps.getPatchSetId() : null; |
| PatchSet.Id curr = change.currentPatchSetId(); |
| _currentRevisionNumber = curr != null ? curr.get() : null; |
| status = change.getStatus().asChangeStatus().toString(); |
| } |
| |
| commit = new CommitInfo(); |
| commit.commit = c.name(); |
| commit.parents = Lists.newArrayListWithCapacity(c.getParentCount()); |
| for (int i = 0; i < c.getParentCount(); i++) { |
| CommitInfo p = new CommitInfo(); |
| p.commit = c.getParent(i).name(); |
| commit.parents.add(p); |
| } |
| commit.author = CommonConverters.toGitPerson(c.getAuthorIdent()); |
| commit.subject = c.getShortMessage(); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(this) |
| .add("project", project) |
| .add("changeId", changeId) |
| .add("commit", toString(commit)) |
| .add("_changeNumber", _changeNumber) |
| .add("_revisionNumber", _revisionNumber) |
| .add("_currentRevisionNumber", _currentRevisionNumber) |
| .add("status", status) |
| .toString(); |
| } |
| |
| private static String toString(CommitInfo commit) { |
| return MoreObjects.toStringHelper(commit) |
| .add("commit", commit.commit) |
| .add("parent", commit.parents) |
| .add("author", commit.author) |
| .add("committer", commit.committer) |
| .add("subject", commit.subject) |
| .add("message", commit.message) |
| .add("webLinks", commit.webLinks) |
| .toString(); |
| } |
| } |
| } |