net.acesinc.data.binner.extractor.JsonDataExtractor.java Source code

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Here is the source code for net.acesinc.data.binner.extractor.JsonDataExtractor.java

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/*
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package net.acesinc.data.binner.extractor;

import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.Map;

/**
 *
 * @author andrewserff
 */
public class JsonDataExtractor extends DataExtractor {

    private ObjectMapper mapper;
    private Map<String, Object> parsedData;

    public JsonDataExtractor(Object data) throws Exception {
        super(data);
        mapper = new ObjectMapper();
        parsedData = mapper.readValue((String) data, Map.class);
    }

    @Override
    public Object getValueForFieldName(String name) {
        return getValueForFieldName(name, parsedData);
    }

    protected Object getValueForFieldName(String name, Map<String, Object> dataMap) {
        if (name.contains(".")) {
            String thisLevelName = name.substring(0, name.indexOf("."));
            String nextLevelName = name.substring(name.indexOf(".") + 1);
            Map<String, Object> nextLevel = (Map<String, Object>) dataMap.get(thisLevelName);
            return getValueForFieldName(nextLevelName, nextLevel);
        } else {
            if (dataMap != null) {
                return dataMap.get(name);
            } else {
                return null;
            }
        }
    }

}