com.hazelcast.client.impl.protocol.task.map.MapExecuteWithPredicateMessageTask Maven / Gradle / Ivy

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Core Hazelcast Module
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/*
 * Copyright (c) 2008-2016, 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.MapExecuteWithPredicateCodec;
import com.hazelcast.instance.Node;
import com.hazelcast.map.EntryProcessor;
import com.hazelcast.map.impl.MapEntries;
import com.hazelcast.map.impl.MapService;
import com.hazelcast.map.impl.operation.MapOperationProvider;
import com.hazelcast.nio.Connection;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.query.Predicate;
import com.hazelcast.security.permission.ActionConstants;
import com.hazelcast.security.permission.MapPermission;
import com.hazelcast.spi.OperationFactory;

import java.security.Permission;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

public class MapExecuteWithPredicateMessageTask
        extends AbstractMapAllPartitionsMessageTask {

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

    @Override
    protected OperationFactory createOperationFactory() {
        MapOperationProvider operationProvider = getOperationProvider(parameters.name);
        EntryProcessor entryProcessor = serializationService.toObject(parameters.entryProcessor);
        Predicate predicate = serializationService.toObject(parameters.predicate);
        return operationProvider.
                createPartitionWideEntryWithPredicateOperationFactory(parameters.name, entryProcessor, predicate);
    }

    @Override
    protected Object reduce(Map map) {
        List> dataMap = new ArrayList>();
        MapService mapService = getService(MapService.SERVICE_NAME);
        for (Object o : map.values()) {
            if (o != null) {
                MapEntries mapEntries = (MapEntries) mapService.getMapServiceContext().toObject(o);
                mapEntries.putAllToList(dataMap);
            }
        }
        return dataMap;
    }

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

    @Override
    protected ClientMessage encodeResponse(Object response) {
        return MapExecuteWithPredicateCodec.encodeResponse((List>) response);
    }

    @Override
    public String getServiceName() {
        return MapService.SERVICE_NAME;
    }


    @Override
    public Permission getRequiredPermission() {
        return new MapPermission(parameters.name, ActionConstants.ACTION_PUT, ActionConstants.ACTION_REMOVE);
    }

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

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

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