/*
 * Copyright (c) 2008-2017, 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.MapEntriesWithPagingPredicateCodec;
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;
import java.util.Map;

public class MapEntriesWithPagingPredicateMessageTask
        extends DefaultMapQueryMessageTask<MapEntriesWithPagingPredicateCodec.RequestParameters> {

    public MapEntriesWithPagingPredicateMessageTask(ClientMessage clientMessage, Node node, Connection connection) {
        super(clientMessage, node, connection);
    }

    @Override
    protected Object reduce(Collection<QueryResultRow> result) {
        List<Map.Entry<Data, Data>> entries = new ArrayList<Map.Entry<Data, Data>>(result.size());
        for (QueryResultRow resultRow : result) {
            entries.add(resultRow);
        }
        return entries;
    }

    @Override
    protected Predicate getPredicate() {
        return serializationService.toObject(parameters.predicate);
    }

    @Override
    protected IterationType getIterationType() {
        return IterationType.ENTRY;
    }

    @Override
    protected MapEntriesWithPagingPredicateCodec.RequestParameters decodeClientMessage(ClientMessage clientMessage) {
        return MapEntriesWithPagingPredicateCodec.decodeRequest(clientMessage);
    }

    @Override
    protected ClientMessage encodeResponse(Object response) {
        return MapEntriesWithPagingPredicateCodec.encodeResponse((List<Map.Entry<Data, Data>>) response);
    }

    @Override
    public Object[] getParameters() {
        return new Object[]{parameters.predicate};
    }


    @Override
    public String getDistributedObjectName() {
        return parameters.name;
    }

    @Override
    public String getMethodName() {
        return "entrySet";
    }

}