// 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.PatchSet;
import com.google.gerrit.reviewdb.client.RevId;
import com.google.gerrit.reviewdb.server.ReviewDb;
import com.google.gerrit.server.query.ObjectIdPredicate;
import com.google.gwtorm.server.OrmException;
import com.google.gwtorm.server.ResultSet;
import com.google.inject.Provider;
import org.eclipse.jgit.lib.AbbreviatedObjectId;
import org.eclipse.jgit.lib.ObjectId;
class CommitPredicate extends ObjectIdPredicate<ChangeData> implements
ChangeDataSource {
private final Provider<ReviewDb> dbProvider;
CommitPredicate(Provider<ReviewDb> dbProvider, AbbreviatedObjectId id) {
super(ChangeQueryBuilder.FIELD_COMMIT, id);
this.dbProvider = dbProvider;
}
@Override
public boolean match(final ChangeData object) throws OrmException {
for (PatchSet p : object.patches(dbProvider)) {
if (p.getRevision() != null && p.getRevision().get() != null) {
final ObjectId id = ObjectId.fromString(p.getRevision().get());
if (abbreviated().prefixCompare(id) == 0) {
return true;
}
}
}
return false;
}
@Override
public ResultSet<ChangeData> read() throws OrmException {
final RevId id = new RevId(abbreviated().name());
if (id.isComplete()) {
return ChangeDataResultSet.patchSet(//
dbProvider.get().patchSets().byRevision(id));
} else {
return ChangeDataResultSet.patchSet(//
dbProvider.get().patchSets().byRevisionRange(id, id.max()));
}
}
@Override
public boolean hasChange() {
return false;
}
@Override
public int getCardinality() {
return ChangeCosts.CARD_COMMIT;
}
@Override
public int getCost() {
return ChangeCosts.cost(ChangeCosts.PATCH_SETS_SCAN, getCardinality());
}
}