// Copyright (C) 2010 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.query.change;
import com.google.gerrit.reviewdb.client.Change;
import com.google.gerrit.reviewdb.server.ReviewDb;
import com.google.gerrit.server.CurrentUser;
import com.google.gerrit.server.IdentifiedUser;
import com.google.gerrit.server.project.ChangeControl;
import com.google.gerrit.server.project.NoSuchChangeException;
import com.google.gerrit.server.query.OperatorPredicate;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Provider;
class IsVisibleToPredicate extends OperatorPredicate<ChangeData> {
private static String describe(CurrentUser user) {
if (user instanceof IdentifiedUser) {
return ((IdentifiedUser) user).getAccountId().toString();
}
if (user instanceof SingleGroupUser) {
return "group:" + ((SingleGroupUser) user).getEffectiveGroups().getKnownGroups() //
.iterator().next().toString();
}
return user.toString();
}
private final Provider<ReviewDb> db;
private final ChangeControl.GenericFactory changeControl;
private final CurrentUser user;
IsVisibleToPredicate(Provider<ReviewDb> db,
ChangeControl.GenericFactory changeControlFactory, CurrentUser user) {
super(ChangeQueryBuilder.FIELD_VISIBLETO, describe(user));
this.db = db;
this.changeControl = changeControlFactory;
this.user = user;
}
@Override
public boolean match(final ChangeData cd) throws OrmException {
if (cd.fastIsVisibleTo(user)) {
return true;
}
try {
Change c = cd.change(db);
if (c == null) {
return false;
}
ChangeControl cc = changeControl.controlFor(c, user);
if (cc.isVisible(db.get())) {
cd.cacheVisibleTo(cc);
return true;
}
} catch (NoSuchChangeException e) {
}
return false;
}
@Override
public int getCost() {
return 1;
}
}