diff options
Diffstat (limited to 'challenge-287/luca-ferrari/pljava/src/main/java/Task1.java')
| -rw-r--r-- | challenge-287/luca-ferrari/pljava/src/main/java/Task1.java | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/challenge-287/luca-ferrari/pljava/src/main/java/Task1.java b/challenge-287/luca-ferrari/pljava/src/main/java/Task1.java new file mode 100644 index 0000000000..8990641a74 --- /dev/null +++ b/challenge-287/luca-ferrari/pljava/src/main/java/Task1.java @@ -0,0 +1,67 @@ + + + +package PWC287; + +/** + * PL/Java implementation for PWC 287 + * Task 1 + * See <https://perlweeklychallenge.org/blog/perl-weekly-challenge-287> + * + * + * To compile on the local machine: + + $ export JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64/ # if not already set + $ mvn clean build + $ scp target/PWC287-1.jar luca@rachel:/tmp + + + * To install into PostgreSQL execute: + + select sqlj.install_jar( 'file:///tmp/PWC287-1.jar', 'PWC287', true ); + select sqlj.set_classpath( 'public', 'PWC287' ); + + select pwc287.task2_pljava(); + + and then to redeploy: + + select sqlj.replace_jar( 'file:///tmp/PWC287-1.jar', 'PWC287', true ); + +*/ + +import org.postgresql.pljava.*; +import org.postgresql.pljava.annotation.Function; +import static org.postgresql.pljava.annotation.Function.Effects.IMMUTABLE; +import static org.postgresql.pljava.annotation.Function.OnNullInput.RETURNS_NULL; + +import java.util.*; +import java.util.stream.*; +import java.sql.SQLException; +import java.util.logging.*; +import java.sql.ResultSet; +import java.sql.Date; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +public class Task1 { + + private final static Logger logger = Logger.getAnonymousLogger(); + + @Function( schema = "pwc287", + onNullInput = RETURNS_NULL, + effects = IMMUTABLE ) + public static final boolean task1_pljava( String password ) throws SQLException { + if ( password.length() < 6 ) + return false; + + Pattern lowerCase = Pattern.compile( "[a-z]" ); + Pattern upperCase = Pattern.compile( "[A-Z]" ); + Pattern digit = Pattern.compile( "[0-9]" ); + Pattern repetitions = Pattern.compile( "(.)\\1\\1" ); + + return lowerCase.matcher( password ).find() + && upperCase.matcher( password ).find() + && digit.matcher( password ).find() + && ! repetitions.matcher( password ).find(); + } +} |
