/*
* 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.signatures.diagnostic;
import com.eightkdata.mongowp.bson.BsonDocument;
import com.eightkdata.mongowp.exceptions.BadValueException;
import com.eightkdata.mongowp.exceptions.FailedToParseException;
import com.eightkdata.mongowp.exceptions.MongoException;
import com.eightkdata.mongowp.exceptions.NoSuchKeyException;
import com.eightkdata.mongowp.exceptions.TypesMismatchException;
import com.eightkdata.mongowp.server.api.MarshalException;
import com.eightkdata.mongowp.server.api.impl.AbstractNotAliasableCommand;
import com.eightkdata.mongowp.server.api.tools.Empty;
import com.torodb.mongodb.commands.tools.EmptyCommandArgumentMarshaller;
public class PingCommand extends AbstractNotAliasableCommand<Empty, Empty> {
public static final PingCommand INSTANCE = new PingCommand();
private static final String COMMAND_NAME = "ping";
public PingCommand() {
super(COMMAND_NAME);
}
@Override
public boolean isAdminOnly() {
return true;
}
@Override
public boolean isSlaveOk() {
return true;
}
@Override
public Class<? extends Empty> getArgClass() {
return Empty.class;
}
@Override
public Empty unmarshallArg(BsonDocument requestDoc) throws BadValueException,
TypesMismatchException, NoSuchKeyException, FailedToParseException {
return Empty.getInstance();
}
@Override
public BsonDocument marshallArg(Empty request) throws MarshalException {
return EmptyCommandArgumentMarshaller.marshallEmptyArgument(this);
}
@Override
public Class<? extends Empty> getResultClass() {
return Empty.class;
}
@Override
public Empty unmarshallResult(BsonDocument resultDoc) throws BadValueException,
TypesMismatchException, NoSuchKeyException, FailedToParseException, MongoException {
return Empty.getInstance();
}
@Override
public BsonDocument marshallResult(Empty result) throws MarshalException {
return null;
}
}