Field value formats for LocalDate, LocalDateTime fields cuba-platform…

…/reports#230

core/modules/core/src/com/haulmont/yarg/formatters/impl/AbstractFormatter.java

@@ -36,6 +36,8 @@
 import java.io.OutputStream;
 import java.text.DecimalFormat;
 import java.text.SimpleDateFormat;
+import java.time.format.DateTimeFormatter;
+import java.time.temporal.TemporalAccessor;
 import java.util.*;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -145,6 +147,9 @@ protected String formatValue(Object value, String parameterName, String fullPara
  } else if (value instanceof Date) {
  SimpleDateFormat dateFormat = new SimpleDateFormat(formatString);
  valueString = dateFormat.format(value);
+ } else if (value instanceof TemporalAccessor) {
+ DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(formatString);
+ valueString = dateTimeFormatter.format((TemporalAccessor) value);
  } else if (value instanceof String && !formatString.startsWith("${")) {//do not use inliner alias as format string
  valueString = String.format(formatString, value);
  } else {
@@ -236,7 +241,7 @@ protected List<String> getAllAliases(String value) {
  Pattern aliasPattern = Pattern.compile("\\$\\{[^\\$\\{\\}]*\\}");
  List<String> aliases = new ArrayList<>();
  Matcher m = aliasPattern.matcher(value);
- while (m.find()){
+ while (m.find()) {
  aliases.add(m.group());
  }
  return aliases;