StringOperations.java

package es.ortoplus.migration.util;

import org.apache.commons.lang3.StringUtils;
import org.springframework.lang.NonNull;

public class StringOperations {

	public final static String ADDRESS_KEYWORDS[] = { 
			"BAJO,BJ,BJO,BAJIO,BAJOS,BJS,BAIXOS,BAXIO,BAJIOS",
			"LOCAL,LC,LCAL,LOCALES,LOCA,LCA,LCOAL",
			"PUERTA,PTA,PUERT ,PURTA ",
			"EDIFICIO,EDF,EDIF,EDIFI,EDIFIC",
			"DCHA,DRCHA,DERECHA",
			"BLOQUE,BLQ,BLOQ,BLOQE,BLOQES,BLOQUES",
			"IZQ,IZDA,IQZ,IZQUIERDA,IZQD,IZQA,IZQDA",
			"PLANTA,PLTA,PLANT",
			"CALLE,C\\\\,C/,CARRER,C",
			"PLAZA,PLAÇA,PL,PLZ",
			"AVENIDA,AVDA,AVD,AVD,AV",
			"CARRETERA,CTRA",
			"Nº,NUMERO,NUM"};

	public final static String NAME_KEYWORDS[] = { 
			
			",DOCTORA,DOCTOR,DRA,DR",
			"MARIA,Mª",
			"FRANCISCO,FRAN,FCO",
			",CLINICA",
			",D,S,L"};

	public static String cleanAddress(@NonNull String address) {
		return cleanString(cleanString(address, ADDRESS_KEYWORDS), NAME_KEYWORDS);
	}

	public static String cleanString(@NonNull String s, @NonNull String[] keywords) {
		String result = StringUtils.stripAccents(s.toUpperCase());
		String [] fieldRest=result.split("[ \\.,;]");

		for (String kw: keywords) {
			String words[] = kw.split(",");
			for (int j = 1; j < words.length; j++) {
				for (int index=0;index<fieldRest.length;index++) {
					if (fieldRest[index].equals(words[j])) {
						fieldRest[index]=words[0];
					}
				}
			}
		}
		return String.join(" ", fieldRest).trim();
	}

	public static String cleanName(@NonNull String name) {
		return cleanString(name, NAME_KEYWORDS);
	}

	public static double addressSimilarity(@NonNull String a, @NonNull String b) {
		return stringSimilarity(cleanAddress(a), cleanAddress(b));
	}

	public static double stringSimilarity(@NonNull String a,@NonNull  String b) {
		String[] splittedA = a.split(" ");
		String[] splittedB = b.split(" ");
		int score = 0;
		for (String s : splittedA) {
			for (String t : splittedB) {
				if (s.equals(t)) {
					score++;
				}
			}
		}
		int size = Integer.max(splittedA.length, splittedB.length);
		return (double) score / size;
	}

	/**
	 * Compares two strings ignoring case and trailing spaces
	 * 
	 * @param a
	 * @param b
	 * @return true if both are null or if StringUtils.equalsIgnoreCase(a.trim(),
	 *         b.trim()) is true
	 */
	public static boolean equalTrimmedStrings(String a, String b) {
		if (a == null && b == null) {
			return true;
		}
		if (a == null || b == null) {
			return false;
		}
		return StringUtils.equalsIgnoreCase(a.trim(), b.trim());
	}

}