dnet-core/dnet-core-components/src/main/java/eu/dnetlib/miscutils/functional/xml/DnetXsltFunctions.java

124 lines
3.4 KiB
Java

package eu.dnetlib.miscutils.functional.xml;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Random;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import com.google.common.base.Joiner;
import eu.dnetlib.miscutils.functional.hash.Hashing;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* This class provides some XSLT functions.
*
* <xsl:stylesheet ... xmlns:dnet="eu.dnetlib.miscutils.functional.xml.DnetXsltFunctions"> ... </xsl:stylesheet>
*
* @author michele
*
*/
public class DnetXsltFunctions {
private static final Log log = LogFactory.getLog(DnetXsltFunctions.class); // NOPMD by marko on 11/24/08 5:02 PM
private static volatile long seedUniquifier = 8682522807148012L;
private static String[] dateFormats = { "yyyy-MM-dd", "yyyy/MM/dd" };
private static final String[] normalizeDateFormats = { "yyyy-MM-dd'T'hh:mm:ss", "yyyy-MM-dd", "yyyy/MM/dd", "yyyy" };
private static final String normalizeOutFormat = new String("yyyy-MM-dd'T'hh:mm:ss'Z'");
public static String extractYear(String s) throws ParseException {
Calendar c = new GregorianCalendar();
for (String format : dateFormats) {
try {
c.setTime(new SimpleDateFormat(format).parse(s));
String year = String.valueOf(c.get(Calendar.YEAR));
return year;
} catch (ParseException e) {}
}
return "";
}
public static String normalizeDate(final String s, final boolean strict) {
final String date = s != null ? s.trim() : "";
for (String format : normalizeDateFormats) {
try {
Date parse = new SimpleDateFormat(format).parse(date);
String res = new SimpleDateFormat(normalizeOutFormat).format(parse);
return res;
} catch (ParseException e) {}
}
if (strict) {
throw new IllegalArgumentException("unable to normalize date: " + date);
} else {
//log.warn("unable to normalize date: " + s);
return "";
}
}
public static String randomInt(int max) {
return String.valueOf(new Random(++seedUniquifier + System.nanoTime()).nextInt(max));
}
public static String md5(String s) {
return Hashing.md5(s);
}
public static String decodeBase64(String s) {
return Hashing.decodeBase64(s);
}
public static String encodeBase64(String s) {
return Hashing.encodeBase64(s);
}
public static String lc(String s) {
return s.toLowerCase();
}
public static String uc(String s) {
return s.toUpperCase();
}
public static String decade(String s) {
String res = _decade(s.trim());
log.debug(s + "--> " + res);
return res;
}
private static String _decade(String s) {
Matcher m1 = Pattern.compile("(\\d\\d\\d)\\d").matcher(s);
if (m1.find()) {
String part = m1.group(1);
return part + "0-" + part + "9";
}
Matcher m2 = Pattern.compile("(\\d)\\d").matcher(s);
if (m2.find()) {
String part = m2.group(1);
return "19" + part + "0-19" + part + "9";
}
return "n/a";
}
public static String join(final String s1, final String separator, final String s2) {
if(StringUtils.isBlank(s1) || StringUtils.isBlank(s2)){
return "";
}
return Joiner.on(separator).join(s1, s2);
}
public static String pickFirst(final String s1, final String s2) {
return StringUtils.isNotBlank(s1) ? s1 : StringUtils.isNotBlank(s2) ? s2 : "";
}
}