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// 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.google.gerrit.server;
import static com.google.common.base.Preconditions.checkArgument;
import static java.util.stream.Collectors.toSet;
import com.google.common.collect.ImmutableList;
import com.google.common.flogger.FluentLogger;
import com.google.gerrit.common.Nullable;
import com.google.gerrit.entities.HumanComment;
import com.google.gerrit.entities.PatchSet;
import com.google.gerrit.extensions.validators.CommentForValidation;
import com.google.gerrit.extensions.validators.CommentValidationContext;
import com.google.gerrit.extensions.validators.CommentValidationFailure;
import com.google.gerrit.extensions.validators.CommentValidator;
import com.google.gerrit.server.notedb.ChangeNotes;
import com.google.gerrit.server.notedb.ChangeUpdate;
import com.google.gerrit.server.plugincontext.PluginSetContext;
import com.google.gerrit.server.update.ChangeContext;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import java.sql.Timestamp;
import java.util.Collection;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
@Singleton
public class PublishCommentUtil {
private static final FluentLogger logger = FluentLogger.forEnclosingClass();
private final PatchSetUtil psUtil;
private final CommentsUtil commentsUtil;
@Inject
PublishCommentUtil(CommentsUtil commentsUtil, PatchSetUtil psUtil) {
this.commentsUtil = commentsUtil;
this.psUtil = psUtil;
}
public void publish(
ChangeContext ctx,
ChangeUpdate changeUpdate,
Collection draftComments,
@Nullable String tag) {
ChangeNotes notes = ctx.getNotes();
checkArgument(notes != null);
if (draftComments.isEmpty()) {
return;
}
Map patchSets =
psUtil.getAsMap(notes, draftComments.stream().map(d -> psId(notes, d)).collect(toSet()));
Set commentsToPublish = new HashSet<>();
for (HumanComment draftComment : draftComments) {
PatchSet.Id psIdOfDraftComment = psId(notes, draftComment);
PatchSet ps = patchSets.get(psIdOfDraftComment);
if (ps == null) {
// This can happen if changes with the same numeric ID exist:
// - change 12345 has 3 patch sets in repo X
// - another change 12345 has 7 patch sets in repo Y
// - the user saves a draft comment on patch set 6 of the change in repo Y
// - this draft comment gets stored in:
// AllUsers -> refs/draft-comments/45/12345/
// - when posting a review with draft handling PUBLISH_ALL_REVISIONS on the change in
// repo X, the draft comments are loaded from
// AllUsers -> refs/draft-comments/45/12345/, including the draft
// comment that was saved for patch set 6 of the change in repo Y
// - patch set 6 does not exist for the change in repo x, hence we get null for the patch
// set here
// Instead of failing hard (and returning an Internal Server Error) to the caller,
// just ignore that comment.
// Gerrit ensures that numeric change IDs are unique, but you can get duplicates if
// change refs of one repo are copied/pushed to another repo on the same host (this
// should never be done, but we know it happens).
logger.atWarning().log(
"Ignoring draft comment %s on non existing patch set %s (repo = %s)",
draftComment, psIdOfDraftComment, notes.getProjectName());
continue;
}
draftComment.writtenOn = Timestamp.from(ctx.getWhen());
draftComment.tag = tag;
// Draft may have been created by a different real user; copy the current real user. (Only
// applies to X-Gerrit-RunAs, since modifying drafts via on_behalf_of is not allowed.)
ctx.getUser().updateRealAccountId(draftComment::setRealAuthor);
commentsUtil.setCommentCommitId(draftComment, notes.getChange(), ps);
commentsToPublish.add(draftComment);
}
commentsUtil.putHumanComments(changeUpdate, HumanComment.Status.PUBLISHED, commentsToPublish);
}
private static PatchSet.Id psId(ChangeNotes notes, HumanComment c) {
return PatchSet.id(notes.getChangeId(), c.key.patchSetId);
}
/**
* Helper to run the specified set of {@link CommentValidator}-s on the specified comments.
*
* @return See {@link CommentValidator#validateComments(CommentValidationContext,ImmutableList)}.
*/
public static ImmutableList findInvalidComments(
CommentValidationContext ctx,
PluginSetContext commentValidators,
ImmutableList commentsForValidation) {
ImmutableList.Builder commentValidationFailures =
new ImmutableList.Builder<>();
commentValidators.runEach(
validator ->
commentValidationFailures.addAll(
validator.validateComments(ctx, commentsForValidation)));
return commentValidationFailures.build();
}
}
