com.hazelcast.client.impl.protocol.task.map.MapKeySetWithPagingPredicateMessageTask Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2018, Hazelcast, Inc. All Rights Reserved.
*
* 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.hazelcast.client.impl.protocol.task.map;
import com.hazelcast.client.impl.protocol.ClientMessage;
import com.hazelcast.client.impl.protocol.codec.MapKeySetWithPagingPredicateCodec;
import com.hazelcast.instance.Node;
import com.hazelcast.map.impl.query.QueryResultRow;
import com.hazelcast.nio.Connection;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.query.Predicate;
import com.hazelcast.util.IterationType;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
public class MapKeySetWithPagingPredicateMessageTask
extends DefaultMapQueryMessageTask {
public MapKeySetWithPagingPredicateMessageTask(ClientMessage clientMessage, Node node, Connection connection) {
super(clientMessage, node, connection);
}
@Override
protected Object reduce(Collection result) {
List set = new ArrayList(result.size());
for (QueryResultRow resultEntry : result) {
set.add(resultEntry.getKey());
}
return set;
}
@Override
protected Predicate getPredicate() {
return serializationService.toObject(parameters.predicate);
}
@Override
protected IterationType getIterationType() {
return IterationType.KEY;
}
@Override
protected MapKeySetWithPagingPredicateCodec.RequestParameters decodeClientMessage(ClientMessage clientMessage) {
return MapKeySetWithPagingPredicateCodec.decodeRequest(clientMessage);
}
@Override
protected ClientMessage encodeResponse(Object response) {
return MapKeySetWithPagingPredicateCodec.encodeResponse((List) response);
}
@Override
public Object[] getParameters() {
return new Object[]{parameters.predicate};
}
@Override
public String getDistributedObjectName() {
return parameters.name;
}
@Override
public String getMethodName() {
return "keySet";
}
}