Package com.hazelcast.cache.impl.client

Source Code of com.hazelcast.cache.impl.client.CacheGetAllRequest

/*
* Copyright (c) 2008-2013, 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.cache.impl.client;

import com.hazelcast.cache.impl.CacheOperationProvider;
import com.hazelcast.cache.impl.CachePortableHook;
import com.hazelcast.cache.impl.CacheService;
import com.hazelcast.cache.impl.operation.CacheGetAllOperationFactory;
import com.hazelcast.client.impl.client.RetryableRequest;
import com.hazelcast.client.impl.client.SecureRequest;
import com.hazelcast.map.impl.MapEntrySet;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.nio.serialization.Portable;
import com.hazelcast.nio.serialization.PortableReader;
import com.hazelcast.nio.serialization.PortableWriter;
import com.hazelcast.spi.OperationFactory;

import javax.cache.expiry.ExpiryPolicy;
import java.io.IOException;
import java.security.Permission;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

/**
* This client request  specifically calls {@link CacheGetAllOperationFactory} on the server side.
*
* @see com.hazelcast.cache.impl.operation.CacheGetAllOperationFactory
*/
public class CacheGetAllRequest
        extends AbstractCacheAllPartitionsRequest
        implements Portable, RetryableRequest, SecureRequest {

    private Set<Data> keys = new HashSet<Data>();
    private ExpiryPolicy expiryPolicy;


    public CacheGetAllRequest() {
    }

    public CacheGetAllRequest(String name, Set<Data> keys, ExpiryPolicy expiryPolicy) {
        super(name);
        this.keys = keys;
        this.expiryPolicy = expiryPolicy;
    }

    public int getFactoryId() {
        return CachePortableHook.F_ID;
    }

    public int getClassId() {
        return CachePortableHook.GET_ALL;
    }

    @Override
    protected OperationFactory createOperationFactory() {
        CacheOperationProvider operationProvider = getOperationProvider();
        return operationProvider.createGetAllOperationFactory(keys, expiryPolicy);
    }

    @Override
    protected Object reduce(Map<Integer, Object> map) {
        MapEntrySet resultSet = new MapEntrySet();
        CacheService service = getService();
        for (Map.Entry<Integer, Object> entry : map.entrySet()) {
            MapEntrySet mapEntrySet = (MapEntrySet) service.toObject(entry.getValue());
            Set<Map.Entry<Data, Data>> entrySet = mapEntrySet.getEntrySet();
            for (Map.Entry<Data, Data> dataEntry : entrySet) {
                resultSet.add(dataEntry);
            }
        }
        return resultSet;
    }

    public void write(PortableWriter writer)
            throws IOException {
        super.write(writer);
        writer.writeInt("size", keys.size());
        ObjectDataOutput output = writer.getRawDataOutput();
        if (!keys.isEmpty()) {
            for (Data key : keys) {
                output.writeData(key);
            }
        }
        output.writeObject(expiryPolicy);
    }

    public void read(PortableReader reader)
            throws IOException {
        super.read(reader);
        int size = reader.readInt("size");
        ObjectDataInput input = reader.getRawDataInput();
        if (size > 0) {
            for (int i = 0; i < size; i++) {
                Data key = input.readData();
                keys.add(key);
            }
        }
        expiryPolicy = input.readObject();
    }

    public Permission getRequiredPermission() {
        return null;
    }

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

    @Override
    public Object[] getParameters() {
        return new Object[]{keys};
    }
}
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