com.hazelcast.ringbuffer.impl.client.ReadManyRequest Maven / Gradle / Ivy

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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.ringbuffer.impl.client;

import com.hazelcast.core.IFunction;
import com.hazelcast.internal.serialization.SerializationService;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.nio.serialization.PortableReader;
import com.hazelcast.nio.serialization.PortableWriter;
import com.hazelcast.ringbuffer.impl.ReadResultSetImpl;
import com.hazelcast.ringbuffer.impl.operations.ReadManyOperation;
import com.hazelcast.security.permission.ActionConstants;
import com.hazelcast.security.permission.RingBufferPermission;
import com.hazelcast.spi.Operation;

import java.io.IOException;
import java.security.Permission;
import java.util.ArrayList;
import java.util.List;

public class ReadManyRequest extends RingbufferRequest {

    private long startSequence;
    private int minCount;
    private int maxCount;
    private Data filterData;

    public ReadManyRequest() {
    }

    public ReadManyRequest(String name, long startSequence, int minCount, int maxCount, Data filter) {
        this.name = name;
        this.startSequence = startSequence;
        this.minCount = minCount;
        this.maxCount = maxCount;
        this.filterData = filter;
    }

    @Override
    protected Operation prepareOperation() {
        SerializationService serializationService = getClientEngine().getSerializationService();
        IFunction filter = serializationService.toObject(filterData);
        return new ReadManyOperation(name, startSequence, minCount, maxCount, filter);
    }

    @Override
    public int getClassId() {
        return RingbufferPortableHook.READ_MANY;
    }

    // here we convert the normal ReadResultSet to a PortableReadResultSet
    @Override
    protected Object filter(Object response) {
        ReadResultSetImpl readResultSet = (ReadResultSetImpl) response;

        int size = readResultSet.size();
        List items = new ArrayList(size);
        Data[] dataItems = readResultSet.getDataItems();
        for (int k = 0; k < size; k++) {
            items.add(dataItems[k]);
        }

        int readCount = readResultSet.readCount();
        return new PortableReadResultSet