/*
 * 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.MapGetCodec;
import com.hazelcast.instance.Node;
import com.hazelcast.map.impl.MapContainer;
import com.hazelcast.map.impl.MapService;
import com.hazelcast.map.impl.operation.MapOperation;
import com.hazelcast.map.impl.operation.MapOperationProvider;
import com.hazelcast.nio.Connection;
import com.hazelcast.security.permission.ActionConstants;
import com.hazelcast.security.permission.MapPermission;
import com.hazelcast.spi.Operation;

import java.security.Permission;

public class MapGetMessageTask
        extends AbstractMapPartitionMessageTask<MapGetCodec.RequestParameters> {

    private transient long startTime;

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

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

    @Override
    protected ClientMessage encodeResponse(Object response) {
        return MapGetCodec.encodeResponse(serializationService.toData(response));
    }

    @Override
    protected Operation prepareOperation() {
        MapOperationProvider operationProvider = getMapOperationProvider(parameters.name);
        MapOperation operation = operationProvider.createGetOperation(parameters.name, parameters.key);
        operation.setThreadId(parameters.threadId);
        return operation;
    }

    @Override
    protected void beforeProcess() {
        startTime = System.currentTimeMillis();
    }

    @Override
    protected void beforeResponse() {
        final long latency = System.currentTimeMillis() - startTime;
        final MapService mapService = getService(MapService.SERVICE_NAME);
        MapContainer mapContainer = mapService.getMapServiceContext().getMapContainer(parameters.name);
        if (mapContainer.getMapConfig().isStatisticsEnabled()) {
            mapService.getMapServiceContext().getLocalMapStatsProvider().getLocalMapStatsImpl(parameters.name)
                    .incrementGets(latency);
        }
    }


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

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

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

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

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