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// Copyright (C) 2016 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.change;
import com.google.common.base.Strings;
import com.google.gerrit.common.TimeUtil;
import com.google.gerrit.extensions.restapi.DefaultInput;
import com.google.gerrit.extensions.restapi.Response;
import com.google.gerrit.extensions.restapi.RestApiException;
import com.google.gerrit.extensions.webui.UiAction;
import com.google.gerrit.reviewdb.client.ChangeMessage;
import com.google.gerrit.reviewdb.client.PatchSet;
import com.google.gerrit.reviewdb.server.ReviewDb;
import com.google.gerrit.server.ChangeMessagesUtil;
import com.google.gerrit.server.PatchSetUtil;
import com.google.gerrit.server.notedb.ChangeUpdate;
import com.google.gerrit.server.permissions.ChangePermission;
import com.google.gerrit.server.permissions.PermissionBackendException;
import com.google.gerrit.server.update.BatchUpdate;
import com.google.gerrit.server.update.BatchUpdateOp;
import com.google.gerrit.server.update.ChangeContext;
import com.google.gerrit.server.update.RetryHelper;
import com.google.gerrit.server.update.RetryingRestModifyView;
import com.google.gerrit.server.update.UpdateException;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.Singleton;
import java.util.Collections;
@Singleton
public class PutDescription
extends RetryingRestModifyView<RevisionResource, PutDescription.Input, Response<String>>
implements UiAction<RevisionResource> {
private final Provider<ReviewDb> dbProvider;
private final ChangeMessagesUtil cmUtil;
private final PatchSetUtil psUtil;
public static class Input {
@DefaultInput public String description;
}
@Inject
PutDescription(
Provider<ReviewDb> dbProvider,
ChangeMessagesUtil cmUtil,
RetryHelper retryHelper,
PatchSetUtil psUtil) {
super(retryHelper);
this.dbProvider = dbProvider;
this.cmUtil = cmUtil;
this.psUtil = psUtil;
}
@Override
protected Response<String> applyImpl(
BatchUpdate.Factory updateFactory, RevisionResource rsrc, Input input)
throws UpdateException, RestApiException, PermissionBackendException {
rsrc.permissions().check(ChangePermission.EDIT_DESCRIPTION);
Op op = new Op(input != null ? input : new Input(), rsrc.getPatchSet().getId());
try (BatchUpdate u =
updateFactory.create(
dbProvider.get(), rsrc.getChange().getProject(), rsrc.getUser(), TimeUtil.nowTs())) {
u.addOp(rsrc.getChange().getId(), op);
u.execute();
}
return Strings.isNullOrEmpty(op.newDescription)
? Response.none()
: Response.ok(op.newDescription);
}
private class Op implements BatchUpdateOp {
private final Input input;
private final PatchSet.Id psId;
private String oldDescription;
private String newDescription;
Op(Input input, PatchSet.Id psId) {
this.input = input;
this.psId = psId;
}
@Override
public boolean updateChange(ChangeContext ctx) throws OrmException {
PatchSet ps = psUtil.get(ctx.getDb(), ctx.getNotes(), psId);
ChangeUpdate update = ctx.getUpdate(psId);
newDescription = Strings.nullToEmpty(input.description);
oldDescription = Strings.nullToEmpty(ps.getDescription());
if (oldDescription.equals(newDescription)) {
return false;
}
String summary;
if (oldDescription.isEmpty()) {
summary = "Description set to \"" + newDescription + "\"";
} else if (newDescription.isEmpty()) {
summary = "Description \"" + oldDescription + "\" removed";
} else {
summary = "Description changed to \"" + newDescription + "\"";
}
ps.setDescription(newDescription);
update.setPsDescription(newDescription);
ctx.getDb().patchSets().update(Collections.singleton(ps));
ChangeMessage cmsg =
ChangeMessagesUtil.newMessage(
psId, ctx.getUser(), ctx.getWhen(), summary, ChangeMessagesUtil.TAG_SET_DESCRIPTION);
cmUtil.addChangeMessage(ctx.getDb(), update, cmsg);
return true;
}
}
@Override
public UiAction.Description getDescription(RevisionResource rsrc) {
return new UiAction.Description()
.setLabel("Edit Description")
.setVisible(rsrc.permissions().testCond(ChangePermission.EDIT_DESCRIPTION));
}
}
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