com.netflix.hollow.tools.split.HollowSplitterPrimaryKeyCopyDirector Maven / Gradle / Ivy

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/*
 *  Copyright 2016-2019 Netflix, Inc.
 *
 *     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.netflix.hollow.tools.split;

import com.netflix.hollow.core.index.key.HollowPrimaryKeyValueDeriver;
import com.netflix.hollow.core.index.key.PrimaryKey;
import com.netflix.hollow.core.read.engine.HollowReadStateEngine;
import com.netflix.hollow.core.read.engine.HollowTypeReadState;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class HollowSplitterPrimaryKeyCopyDirector implements HollowSplitterCopyDirector {
    
    private final int numShards;
    private final List topLevelTypes;
    private final Map primaryKeyDeriverByType;
    
    public HollowSplitterPrimaryKeyCopyDirector(HollowReadStateEngine stateEngine, int numShards, PrimaryKey... keys) {
        this.numShards = numShards;
        this.topLevelTypes = new ArrayList(keys.length);
        this.primaryKeyDeriverByType = new HashMap();
        
        for(int i=0;i