1 files changed, 49 insertions, 0 deletions
diff --git a/challenge-253/luca-ferrari/pljava/src/main/java/Task1.java b/challenge-253/luca-ferrari/pljava/src/main/java/Task1.java
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index 0000000000..af8329b557
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+++ b/challenge-253/luca-ferrari/pljava/src/main/java/Task1.java
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+package PWC253;
+
+/**
+ * PL/Java implementation for PWC 253
+ * Task 1
+ * See <https://perlweeklychallenge.org/blog/perl-weekly-challenge-253>
+ *
+ * To install into PostgreSQL execute:
+
+ select sqlj.install_jar( 'file:///tmp/PWC253.1.jar', 'PWC253', true );
+ select sqlj.set_classpath( 'public', 'PWC253' );
+
+ select task$tn_pljava();
+
+*/
+
+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.logging.*;
+
+public class Task1 {
+    private final static Logger logger = Logger.getAnonymousLogger();
+
+    @Function( onNullInput = RETURNS_NULL, effects = IMMUTABLE )
+    public static final String[] task1_pljava( String separator, String[] words ) {
+	List<String> result = new LinkedList<String>();
+	logger.info( "Entering task1_pljava" );
+	for ( String w : words ) {
+	    if ( ! w.contains( separator ) )
+		result.add( w );
+	    else
+		System.out.println( "SPLITTO " + w );
+		for ( String ww : w.split( "[" + separator + "]" ) ) {
+		    result.add( ww );
+		}
+	}
+
+	return result.toArray( new String[ result.size() ] );
+    }
+
+    @Function
+    public static void logMessage(String logLevel, String message) {
+		Logger.getAnonymousLogger().log(Level.parse(logLevel), message);
+	}
+}