/*
* ToroDB
* Copyright © 2014 8Kdata Technology (www.8kdata.com)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.torodb.mongodb.commands.impl.aggregation;
import com.eightkdata.mongowp.Status;
import com.eightkdata.mongowp.server.api.Command;
import com.eightkdata.mongowp.server.api.Request;
import com.torodb.mongodb.commands.impl.ReadTorodbCommandImpl;
import com.torodb.mongodb.commands.signatures.aggregation.CountCommand.CountArgument;
import com.torodb.mongodb.core.MongodTransaction;
import javax.inject.Singleton;
/**
*
*/
@Singleton
public class CountImplementation implements ReadTorodbCommandImpl<CountArgument, Long> {
@Override
public Status<Long> apply(Request req, Command<? super CountArgument, ? super Long> command,
CountArgument arg, MongodTransaction context) {
return Status.ok(
context.getTorodTransaction()
.countAll(req.getDatabase(), arg.getCollection())
);
}
}