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BAEL-1351 RegEx for matching Date Pattern in Java (#3217)

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* kugaudo/igor@kugaudo.com

* BAEL-1351 RegEx for matching Date Pattern in Java

* BAEL-1351 RegEx for matching Date Pattern in Java

* BAEL-1351 RegEx for matching Date Pattern in Java

* Fixed names of test methods

* Refactored class names, split unit tests by classes

* Reordered test cases in Gregorian date matcher unit test, formatted code

* Added override annotation

* Renamed mather main method for better semantics

* Fixed names of test methods

* Split Gregorian date matcher to separate branches

* Fixed test cases according to the article

* Revert "Merge branch 'master' into datepattern"

This reverts commit 0d57456140, reversing
changes made to c768132dcd.
This commit is contained in:
Igor Kugaudo
2018-01-08 19:24:28 +02:00
committed by daoire
parent 92789f9ae6
commit fd9d956be3
16 changed files with 387 additions and 0 deletions
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7
core-java/src/main/java/com/baeldung/regexp/datepattern/DateMatcher.java Normal file
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package com.baeldung.regexp.datepattern;
public interface DateMatcher {
boolean matches(String date);
}

14
core-java/src/main/java/com/baeldung/regexp/datepattern/FormattedDateMatcher.java Normal file
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package com.baeldung.regexp.datepattern;
import java.util.regex.Pattern;
class FormattedDateMatcher implements DateMatcher {
private static final Pattern DATE_PATTERN = Pattern.compile(
"^\\d{4}-\\d{2}-\\d{2}$");
@Override
public boolean matches(String date) {
return DATE_PATTERN.matcher(date).matches();
}
}

14
core-java/src/main/java/com/baeldung/regexp/datepattern/RangedDateMatcher.java Normal file
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package com.baeldung.regexp.datepattern;
import java.util.regex.Pattern;
class RangedDateMatcher implements DateMatcher {
private static final Pattern DATE_PATTERN = Pattern.compile(
"^((19|2[0-9])[0-9]{2})-(0[1-9]|1[012])-(0[1-9]|[12][0-9]|3[01])$");
@Override
public boolean matches(String date) {
return DATE_PATTERN.matcher(date).matches();
}
}

16
core-java/src/main/java/com/baeldung/regexp/datepattern/gregorian/February29thMatcher.java Normal file
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package com.baeldung.regexp.datepattern.gregorian;
import com.baeldung.regexp.datepattern.DateMatcher;
import java.util.regex.Pattern;
public class February29thMatcher implements DateMatcher {
private static final Pattern DATE_PATTERN = Pattern.compile(
"^((2000|2400|2800|(19|2[0-9](0[48]|[2468][048]|[13579][26])))-02-29)$");
@Override
public boolean matches(String date) {
return DATE_PATTERN.matcher(date).matches();
}
}

16
core-java/src/main/java/com/baeldung/regexp/datepattern/gregorian/FebruaryGeneralMatcher.java Normal file
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package com.baeldung.regexp.datepattern.gregorian;
import com.baeldung.regexp.datepattern.DateMatcher;
import java.util.regex.Pattern;
public class FebruaryGeneralMatcher implements DateMatcher {
private static final Pattern DATE_PATTERN = Pattern.compile(
"^(((19|2[0-9])[0-9]{2})-02-(0[1-9]|1[0-9]|2[0-8]))$");
@Override
public boolean matches(String date) {
return DATE_PATTERN.matcher(date).matches();
}
}

19
core-java/src/main/java/com/baeldung/regexp/datepattern/gregorian/GregorianDateMatcher.java Normal file
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package com.baeldung.regexp.datepattern.gregorian;
import com.baeldung.regexp.datepattern.DateMatcher;
import java.util.regex.Pattern;
class GregorianDateMatcher implements DateMatcher {
private static final Pattern DATE_PATTERN = Pattern.compile(
"^((2000|2400|2800|(19|2[0-9](0[48]|[2468][048]|[13579][26])))-02-29)$"
+ "|^(((19|2[0-9])[0-9]{2})-02-(0[1-9]|1[0-9]|2[0-8]))$"
+ "|^(((19|2[0-9])[0-9]{2})-(0[13578]|10|12)-(0[1-9]|[12][0-9]|3[01]))$"
+ "|^(((19|2[0-9])[0-9]{2})-(0[469]|11)-(0[1-9]|[12][0-9]|30))$");
@Override
public boolean matches(String date) {
return DATE_PATTERN.matcher(date).matches();
}
}

17
core-java/src/main/java/com/baeldung/regexp/datepattern/gregorian/MonthsOf30DaysMatcher.java Normal file
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package com.baeldung.regexp.datepattern.gregorian;
import com.baeldung.regexp.datepattern.DateMatcher;
import java.util.regex.Pattern;
public class MonthsOf30DaysMatcher implements DateMatcher {
private static final Pattern DATE_PATTERN = Pattern.compile(
"^(((19|2[0-9])[0-9]{2})-(0[469]|11)-(0[1-9]|[12][0-9]|30))$");
@Override
public boolean matches(String date) {
return DATE_PATTERN.matcher(date).matches();
}
}

17
core-java/src/main/java/com/baeldung/regexp/datepattern/gregorian/MonthsOf31DaysMatcher.java Normal file
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package com.baeldung.regexp.datepattern.gregorian;
import com.baeldung.regexp.datepattern.DateMatcher;
import java.util.regex.Pattern;
public class MonthsOf31DaysMatcher implements DateMatcher {
private static final Pattern DATE_PATTERN = Pattern.compile(
"^(((19|2[0-9])[0-9]{2})-(0[13578]|10|12)-(0[1-9]|[12][0-9]|3[01]))$");
@Override
public boolean matches(String date) {
return DATE_PATTERN.matcher(date).matches();
}
}