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// Copyright (C) 2011 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.changedetail;
import com.google.gerrit.common.data.ReviewResult;
import com.google.gerrit.reviewdb.client.Change;
import com.google.gerrit.reviewdb.client.PatchSet;
import com.google.gerrit.reviewdb.server.ReviewDb;
import com.google.gerrit.server.ChangeUtil;
import com.google.gerrit.server.extensions.events.GitReferenceUpdated;
import com.google.gerrit.server.git.GitRepositoryManager;
import com.google.gerrit.server.patch.PatchSetInfoFactory;
import com.google.gerrit.server.patch.PatchSetInfoNotAvailableException;
import com.google.gerrit.server.project.ChangeControl;
import com.google.gerrit.server.project.NoSuchChangeException;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Inject;
import com.google.inject.assistedinject.Assisted;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.Callable;
public class DeleteDraftPatchSet implements Callable<ReviewResult> {
public interface Factory {
DeleteDraftPatchSet create(PatchSet.Id patchSetId);
}
private final ChangeControl.Factory changeControlFactory;
private final ReviewDb db;
private final GitRepositoryManager gitManager;
private final GitReferenceUpdated gitRefUpdated;
private final PatchSetInfoFactory patchSetInfoFactory;
private final PatchSet.Id patchSetId;
@Inject
DeleteDraftPatchSet(ChangeControl.Factory changeControlFactory,
ReviewDb db, GitRepositoryManager gitManager,
GitReferenceUpdated gitRefUpdated, PatchSetInfoFactory patchSetInfoFactory,
@Assisted final PatchSet.Id patchSetId) {
this.changeControlFactory = changeControlFactory;
this.db = db;
this.gitManager = gitManager;
this.gitRefUpdated = gitRefUpdated;
this.patchSetInfoFactory = patchSetInfoFactory;
this.patchSetId = patchSetId;
}
@Override
public ReviewResult call() throws NoSuchChangeException, OrmException {
final ReviewResult result = new ReviewResult();
final Change.Id changeId = patchSetId.getParentKey();
result.setChangeId(changeId);
final ChangeControl control = changeControlFactory.validateFor(changeId);
final PatchSet patch = db.patchSets().get(patchSetId);
if (patch == null) {
throw new NoSuchChangeException(changeId);
}
if (!patch.isDraft()) {
result.addError(new ReviewResult.Error(
ReviewResult.Error.Type.NOT_A_DRAFT));
return result;
}
if (!control.canDeleteDraft(db)) {
result.addError(new ReviewResult.Error(
ReviewResult.Error.Type.DELETE_NOT_PERMITTED));
return result;
}
final Change change = control.getChange();
try {
ChangeUtil.deleteOnlyDraftPatchSet(patch, change, gitManager, gitRefUpdated, db);
} catch (IOException e) {
result.addError(new ReviewResult.Error(
ReviewResult.Error.Type.GIT_ERROR, e.getMessage()));
}
List<PatchSet> restOfPatches = db.patchSets().byChange(changeId).toList();
if (restOfPatches.size() == 0) {
try {
ChangeUtil.deleteDraftChange(patchSetId, gitManager, gitRefUpdated, db);
result.setChangeId(null);
} catch (IOException e) {
result.addError(new ReviewResult.Error(
ReviewResult.Error.Type.GIT_ERROR, e.getMessage()));
}
} else {
PatchSet.Id highestId = null;
for (PatchSet ps : restOfPatches) {
if (highestId == null || ps.getPatchSetId() > highestId.get()) {
highestId = ps.getId();
}
}
if (change.currentPatchSetId().equals(patchSetId)) {
try {
change.setCurrentPatchSet(patchSetInfoFactory.get(db, highestId));
} catch (PatchSetInfoNotAvailableException e) {
throw new NoSuchChangeException(changeId);
}
db.changes().update(Collections.singleton(change));
}
}
return result;
}
}
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