com.hazelcast.multimap.impl.client.KeySetRequest 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.multimap.impl.client;

import com.hazelcast.client.impl.client.RetryableRequest;
import com.hazelcast.multimap.impl.MultiMapPortableHook;
import com.hazelcast.multimap.impl.operations.MultiMapOperationFactory;
import com.hazelcast.multimap.impl.operations.MultiMapResponse;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.spi.OperationFactory;
import com.hazelcast.spi.impl.PortableCollection;
import java.util.Collection;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

public class KeySetRequest extends MultiMapAllPartitionRequest implements RetryableRequest {

    public KeySetRequest() {
    }

    public KeySetRequest(String name) {
        super(name);
    }

    @Override
    protected OperationFactory createOperationFactory() {
        return new MultiMapOperationFactory(name, MultiMapOperationFactory.OperationFactoryType.KEY_SET);
    }

    @Override
    protected Object reduce(Map map) {
        Set keySet = new HashSet();
        for (Object obj : map.values()) {
            if (obj == null) {
                continue;
            }
            MultiMapResponse response = (MultiMapResponse) obj;
            Collection coll = response.getCollection();
            if (coll != null) {
                keySet.addAll(coll);
            }
        }
        return new PortableCollection(keySet);
    }

    @Override
    public int getClassId() {
        return MultiMapPortableHook.KEY_SET;
    }

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