package eu.dnetlib.pace.tree.support;

import java.io.IOException;
import java.io.Serializable;
import java.util.Map;

import com.fasterxml.jackson.databind.ObjectMapper;

import eu.dnetlib.pace.util.PaceException;

/**
 * The class that defines the configuration of each field in the decision tree.
 * */
public class FieldConf implements Serializable {

	private String field; // name of the field on which apply the comparator
	private String comparator; // comparator name
	private double weight = 1.0; // weight for the field (to be used in the aggregation)
	private Map<String, String> params; // parameters

	private boolean countIfUndefined;

	public boolean isCountIfUndefined() {
		return countIfUndefined;
	}

	public void setCountIfUndefined(boolean countIfUndefined) {
		this.countIfUndefined = countIfUndefined;
	}

	public FieldConf() {
	}

	public FieldConf(String field, String comparator, double weight, Map<String, String> params,
		boolean countIfUndefined) {
		this.field = field;
		this.comparator = comparator;
		this.weight = weight;
		this.params = params;
		this.countIfUndefined = countIfUndefined;
	}

	public String getField() {
		return field;
	}

	public void setField(String field) {
		this.field = field;
	}

	public String getComparator() {
		return comparator;
	}

	public void setComparator(String comparator) {
		this.comparator = comparator;
	}

	public double getWeight() {
		return weight;
	}

	public void setWeight(double weight) {
		this.weight = weight;
	}

	public Map<String, String> getParams() {
		return params;
	}

	public void setParams(Map<String, String> params) {
		this.params = params;
	}

	@Override
	public String toString() {
		try {
			return new ObjectMapper().writeValueAsString(this);
		} catch (IOException e) {
			throw new PaceException("Impossible to convert to JSON: ", e);
		}
	}
}