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cloud server for Five Faces

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package com.fivefaces.cloud.warehouse;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.collect.MapDifference;
import com.google.common.collect.Maps;
import lombok.AllArgsConstructor;
import org.springframework.stereotype.Component;

import java.util.HashMap;
import java.util.Map;
import java.util.Set;

@AllArgsConstructor
@Component
public class WarehouseUtils {


    public boolean isPrimaryUpdate(final String previousRecord, final String updatedRecord, Set primaryUpdates) throws JsonProcessingException {

        ObjectMapper mapper = new ObjectMapper();
        TypeReference> type =
                new TypeReference<>() {
                };

        Map leftMap = mapper.readValue(previousRecord, type);
        Map rightMap = mapper.readValue(updatedRecord, type);

        MapDifference difference = Maps.difference(leftMap, rightMap);
        final Boolean[] isPrimaryUpdate = new Boolean[] {false};
        difference.entriesDiffering().forEach( (changedField, objectValueDifference) -> {
            if (primaryUpdates.contains(changedField)) {
                isPrimaryUpdate[0] = true;
            }
        });
        return isPrimaryUpdate[0];
    }

    public MapDifference getDifferences(final String previousRecord, final String updatedRecord) throws JsonProcessingException {

        ObjectMapper mapper = new ObjectMapper();
        TypeReference> type =
                new TypeReference<>() {
                };

        Map leftMap = mapper.readValue(previousRecord, type);
        Map rightMap = mapper.readValue(updatedRecord, type);
        return Maps.difference(leftMap, rightMap);
    }
}