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hollow-jsonadapter

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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.jsonadapter;

import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonToken;
import com.netflix.hollow.core.schema.HollowObjectSchema;
import com.netflix.hollow.core.schema.HollowSchema;
import com.netflix.hollow.core.schema.HollowSchema.SchemaType;
import java.io.IOException;
import java.io.StringReader;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

/**
 * Extracts just a user-defined primary key from a json record
 */
public class HollowJsonAdapterPrimaryKeyFinder {

    private final Map hollowSchemas;

    private final String typeName;
    private final Object[] keyElementArray;
    private final Map keyFieldPathPositions;

    public HollowJsonAdapterPrimaryKeyFinder(Collection schemas, String typeName, String... keyFieldPaths) {
        this.hollowSchemas = new HashMap();
        this.typeName = typeName;

        for(HollowSchema schema : schemas) {
            hollowSchemas.put(schema.getName(), schema);
        }

        this.keyElementArray = new Object[keyFieldPaths.length];
        this.keyFieldPathPositions = new HashMap();
        for(int i=0;i