Forward patch from 5.5.2

.gitignore

@@ -32,3 +32,6 @@ buildNumber.properties
 
 # Binary files
 *.class
+/dmn-tck-it/dmn-tck-it-python-translator/.venv/
+/dmn-tck-it/dmn-tck-it-python-translator/src/scripts.egg-info/
+/dmn-tck-it/dmn-tck-it-python-translator/src/UNKNOWN.egg-info/

dmn-core/pom.xml

@@ -108,7 +108,7 @@
         <dependency>
             <groupId>org.fitnesse</groupId>
             <artifactId>fitnesse</artifactId>
-            <version>20211030</version>
+            <version>20230503</version>
             <exclusions>
                 <exclusion>
                     <groupId>org.slf4j</groupId>

dmn-core/src/main/java/com/gs/dmn/feel/analysis/semantics/environment/StandardEnvironmentFactory.java

@@ -210,6 +210,7 @@ private static void addStringFunctions(Environment environment) {
         addFunctionDeclaration(environment, "ends with", new BuiltinFunctionType(BOOLEAN, new FormalParameter<>("string", STRING), new FormalParameter<>("match", STRING)));
         addFunctionDeclaration(environment, "matches", new BuiltinFunctionType(BOOLEAN, new FormalParameter<>("input", STRING), new FormalParameter<>("pattern", STRING), new FormalParameter<>("flags", STRING, true, false)));
         addFunctionDeclaration(environment, "split", new BuiltinFunctionType(STRING_LIST, new FormalParameter<>("string", STRING), new FormalParameter<>("delimiter", STRING)));
+        addFunctionDeclaration(environment, "string join", new BuiltinFunctionType(STRING, new FormalParameter<>("list", STRING_LIST), new FormalParameter<>("delimiter", STRING, true, false)));
     }
 
     private static void addListFunctions(Environment environment) {

dmn-core/src/main/java/com/gs/dmn/feel/synthesis/AbstractFEELToJavaVisitor.java

@@ -59,6 +59,7 @@ public abstract class AbstractFEELToJavaVisitor extends AbstractAnalysisVisitor<
         FEEL_2_JAVA_FUNCTION.put("lower case", "lowerCase");
         FEEL_2_JAVA_FUNCTION.put("upper case", "upperCase");
         FEEL_2_JAVA_FUNCTION.put("string length", "stringLength");
+        FEEL_2_JAVA_FUNCTION.put("string join", "stringJoin");
 
         FEEL_2_JAVA_FUNCTION.put("years and months duration", "yearsAndMonthsDuration");
         FEEL_2_JAVA_FUNCTION.put("date and time", "dateAndTime");

dmn-core/src/main/java/com/gs/dmn/transformation/formatter/GoogleJavaFormatter.java

@@ -25,25 +25,13 @@ public class GoogleJavaFormatter implements JavaFormatter {
 
     static {
         try {
-            setFinalStatic();
             JavaFormatterOptions options = JavaFormatterOptions.builder().style(JavaFormatterOptions.Style.GOOGLE).build();
             FORMATTER = new Formatter(options);
         } catch (Exception e) {
             throw new DMNRuntimeException("Cannot set max length in formatter", e);
         }
     }
 
-    static void setFinalStatic() throws Exception {
-        Field field = JavaFormatterOptions.class.getDeclaredField("DEFAULT_MAX_LINE_LENGTH");
-        field.setAccessible(true);
-
-        Field modifiersField = Field.class.getDeclaredField("modifiers");
-        modifiersField.setAccessible(true);
-        modifiersField.setInt(field, field.getModifiers() & ~Modifier.FINAL);
-
-        field.set(null, 150);
-    }
-
     @Override
     public String formatSource(String code) {
         try {

dmn-core/src/main/resources/dmn/1.3/FEELLexer.g4

@@ -229,6 +229,9 @@ NAME:
     'ends' WhiteSpace+ 'with'
     { setText("ends with"); }
     |
+    'string' WhiteSpace+ 'join'
+    { setText("string join"); }
+    |
     'start' WhiteSpace+ 'position'
     { setText("start position"); }
     |

dmn-core/src/test/java/com/gs/dmn/feel/AbstractStandardFEELProcessorTest.java

@@ -674,6 +674,18 @@ public void testStringFunctions() {
                 "split(\"John Doe\", \"\\\\s\")",
                 this.lib.split("John Doe", "\\s"),
                 this.lib.asList("John", "Doe"));
+        doExpressionTest(entries, "", "string join([\"a\",\"b\",\"c\"], \"_and_\")",
+                "FunctionInvocation(Name(string join) -> PositionalParameters(ListLiteral(StringLiteral(\"a\"),StringLiteral(\"b\"),StringLiteral(\"c\")), StringLiteral(\"_and_\")))",
+                "string",
+                "stringJoin(asList(\"a\", \"b\", \"c\"), \"_and_\")",
+                this.lib.stringJoin(this.lib.asList("a", "b", "c"), "_and_"),
+                "a_and_b_and_c");
+        doExpressionTest(entries, "", "string join([\"a\",\"b\",\"c\"])",
+                "FunctionInvocation(Name(string join) -> PositionalParameters(ListLiteral(StringLiteral(\"a\"),StringLiteral(\"b\"),StringLiteral(\"c\"))))",
+                "string",
+                "stringJoin(asList(\"a\", \"b\", \"c\"))",
+                this.lib.stringJoin(this.lib.asList("a", "b", "c")),
+                "abc");
     }
 
     @Test

dmn-core/src/test/java/com/gs/dmn/feel/analysis/syntax/FEELLexerTest.java

@@ -148,6 +148,9 @@ public void testSimpleName() {
         token = checkToken("ends with", NAME, "ends with");
         checkPosition(token, 1, 1, 1, 9, 0, 9);
 
+        token = checkToken("string join", NAME, "string join");
+        checkPosition(token, 1, 1, 1, 11, 0, 11);
+
         token = checkToken("list contains", NAME, "list contains");
         checkPosition(token, 1, 1, 1, 13, 0, 13);
 

dmn-core/src/test/resources/dmn/expected/1.2/1.3/0004-lending.dmn

@@ -157,6 +157,9 @@
         <outputEntry id="_cc1cbffe-d1fe-4646-bc2e-df2bf08cb661-2">
           <text>"DECLINE"</text>
         </outputEntry>
+        <annotationEntry>
+          <text>annotation</text>
+        </annotationEntry>
       </rule>
       <rule id="_fbe095b9-b6b8-42f8-b980-3db4fb2dbe12">
         <inputEntry id="_fbe095b9-b6b8-42f8-b980-3db4fb2dbe12-0">

dmn-core/src/test/resources/dmn/input/1.2/0004-lending.dmn

@@ -157,6 +157,9 @@
                 <outputEntry id="_cc1cbffe-d1fe-4646-bc2e-df2bf08cb661-2">
                     <text>"DECLINE"</text>
                 </outputEntry>
+                <annotationEntry>
+                    <text>annotation</text>
+                </annotationEntry>
             </rule>
             <rule id="_fbe095b9-b6b8-42f8-b980-3db4fb2dbe12">
                 <inputEntry id="_fbe095b9-b6b8-42f8-b980-3db4fb2dbe12-0">

dmn-runtime/src/main/java/com/gs/dmn/feel/lib/BaseStandardFEELLib.java

@@ -637,6 +637,28 @@ public List<String> split(String string, String delimiter) {
         }
     }
 
+    @Override
+    public String stringJoin(List<String> list) {
+        try {
+            return this.stringLib.stringJoin(list);
+        } catch (Exception e) {
+            String message = String.format("stringJoin(%s)", list);
+            logError(message, e);
+            return null;
+        }
+    }
+
+    @Override
+    public String stringJoin(List<String> list, String delimiter) {
+        try {
+            return this.stringLib.stringJoin(list, delimiter);
+        } catch (Exception e) {
+            String message = String.format("stringJoin(%s, %s)", list, delimiter);
+            logError(message, e);
+            return null;
+        }
+    }
+
     //
     // Boolean functions
     //

dmn-runtime/src/main/java/com/gs/dmn/feel/lib/StandardFEELLib.java

@@ -125,6 +125,10 @@ public interface StandardFEELLib<NUMBER, DATE, TIME, DATE_TIME, DURATION> extend
 
     List<String> split(String string, String delimiter);
 
+    String stringJoin(List<String> list);
+
+    String stringJoin(List<String> list, String delimiter);
+
     //
     // Boolean functions
     //

dmn-runtime/src/main/java/com/gs/dmn/feel/lib/type/string/DefaultStringLib.java

@@ -35,8 +35,10 @@
 import java.time.ZonedDateTime;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import java.util.stream.Collectors;
 
 public class DefaultStringLib implements StringLib {
     private static final ThreadLocal<DecimalFormat> DECIMAL_FORMAT = ThreadLocal.withInitial(() -> new DecimalFormat("0.########"));
@@ -120,6 +122,23 @@ public String substring(String string, Number startPosition) {
         return result;
     }
 
+    @Override
+    public String stringJoin(List<String> list) {
+        return stringJoin(list, null);
+    }
+
+    @Override
+    public String stringJoin(List<String> list, String delimiter) {
+        if (list == null) {
+            return null;
+        }
+        if (delimiter == null) {
+            delimiter = "";
+        }
+
+        return list.stream().filter(Objects::nonNull).collect(Collectors.joining(delimiter));
+    }
+
     @Override
     public String substring(String string, Number startPosition, Number length) {
         if (string == null || startPosition == null || length == null) {

dmn-runtime/src/main/java/com/gs/dmn/feel/lib/type/string/StringLib.java

@@ -42,4 +42,8 @@ public interface StringLib {
     Boolean matches(String input, String pattern, String flags) throws Exception;
 
     List<String> split(String string, String delimiter);
+
+    String stringJoin(List<String> list);
+
+    String stringJoin(List<String> list, String delimiter);
 }

dmn-runtime/src/main/java/com/gs/dmn/runtime/LazyEval.java

@@ -24,7 +24,7 @@
  *
  */
 public final class LazyEval<T> {
-    protected static final Logger LOGGER = LoggerFactory.getLogger(LazyEval.class);
+    private static final Logger LOGGER = LoggerFactory.getLogger(LazyEval.class);
 
     private T value;
     private boolean isValueSet = false;
@@ -39,7 +39,7 @@ public T getOrCompute() {
     }
 
     private T compute() {
-        LOGGER.info("Trigger lazy evaluation");
+        LOGGER.debug("Trigger lazy evaluation");
 
         isValueSet = true;
         return value = supplier.get();

dmn-runtime/src/main/java/com/gs/dmn/runtime/listener/LoggingEventListener.java

@@ -23,12 +23,12 @@ public LoggingEventListener(Logger logger) {
 
     @Override
     public void startDRGElement(DRGElement element, Arguments arguments) {
-        logger.info("Start {} '{}' with inputs '{}'", element.getElementKind().getDisplayName(), element.getName(), arguments);
+        logger.debug("Start {} '{}' with inputs '{}'", element.getElementKind().getDisplayName(), element.getName(), arguments);
     }
 
     @Override
     public void endDRGElement(DRGElement element, Arguments arguments, Object output, long duration) {
-        logger.info("End {} '{}' with output '{}' in {}ms", element.getElementKind().getDisplayName(), element.getName(), output, duration);
+        logger.debug("End {} '{}' with output '{}' in {}ms", element.getElementKind().getDisplayName(), element.getName(), output, duration);
     }
 
     @Override

dmn-runtime/src/main/java/com/gs/dmn/serialization/XMLUtil.java

@@ -12,6 +12,7 @@
  */
 package com.gs.dmn.serialization;
 
+import com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -23,9 +24,19 @@ public class XMLUtil {
     private static final Logger LOGGER = LoggerFactory.getLogger(XMLUtil.class);
 
     public static DocumentBuilderFactory makeDocumentBuilderFactory() {
-        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
-        dbf.setAttribute(XMLConstants.ACCESS_EXTERNAL_DTD, ""); // Compliant
-        dbf.setAttribute(XMLConstants.ACCESS_EXTERNAL_SCHEMA, ""); // compliant
+        DocumentBuilderFactory dbf = new DocumentBuilderFactoryImpl();
+
+        String attribute = null;
+        try {
+            attribute = XMLConstants.ACCESS_EXTERNAL_DTD;
+            dbf.setAttribute(attribute, ""); // Compliant
+            attribute = XMLConstants.ACCESS_EXTERNAL_SCHEMA;
+            dbf.setAttribute(attribute, ""); // compliant
+        } catch (IllegalArgumentException e) {
+            // This should catch a failed setAttribute feature
+            LOGGER.debug("IllegalArgumentException was thrown. The attribute '" + attribute
+                    + "' is probably not supported by your XML processor.");
+        }
         String feature = null;
         try {
             // This is the PRIMARY defense. If DTDs (doctypes) are disallowed, almost all
@@ -50,8 +61,6 @@ public static DocumentBuilderFactory makeDocumentBuilderFactory() {
             // Disable external DTDs as well
             feature = "http://apache.org/xml/features/nonvalidating/load-external-dtd";
             dbf.setFeature(feature, false);
-            dbf.setAttribute(XMLConstants.ACCESS_EXTERNAL_DTD, "");
-            dbf.setAttribute(XMLConstants.ACCESS_EXTERNAL_SCHEMA, "");
 
             // and these as well, per Timothy Morgan's 2014 paper: "XML Schema, DTD, and Entity Attacks"
             dbf.setXIncludeAware(false);
@@ -63,7 +72,7 @@ public static DocumentBuilderFactory makeDocumentBuilderFactory() {
             // of service attacks (such as billion laughs or decompression bombs via "jar:") are a risk."
         } catch (ParserConfigurationException e) {
             // This should catch a failed setFeature feature
-            LOGGER.info("ParserConfigurationException was thrown. The feature '" + feature
+            LOGGER.debug("ParserConfigurationException was thrown. The feature '" + feature
                     + "' is probably not supported by your XML processor.");
         }
 

dmn-runtime/src/test/java/com/gs/dmn/feel/lib/BaseStandardFEELLibExceptionsTest.java

@@ -197,6 +197,12 @@ public void testSplit() {
         assertNull(getLib().split(null, null));
     }
 
+    @Test
+    public void testStringJoin() {
+        assertNull(getLib().stringJoin(null));
+        assertNull(getLib().stringJoin(null, null));
+    }
+
     @Test
     public void testAnd() {
         assertNull(getLib().and((List) null));

dmn-runtime/src/test/java/com/gs/dmn/feel/lib/BaseStandardFEELLibTest.java

@@ -703,13 +703,30 @@ public void testMatches() {
 
     @Test
     public void testSplit() {
-        assertNull("", getLib().split(null, null));
-        assertNull("", getLib().split("", ""));
+        assertNull(getLib().split(null, null));
+        assertNull(getLib().split("", ""));
 
         assertEquals(getLib().asList("John", "Doe"), getLib().split("John Doe", "\\s"));
         assertEquals(getLib().asList("a", "b", "c", "", ""), getLib().split("a;b;c;;", ";"));
     }
 
+    @Test
+    public void testStringJoin() {
+        assertNull(getLib().stringJoin(null));
+        assertNull(getLib().stringJoin(null, null));
+
+        assertEquals("a_and_b_and_c", getLib().stringJoin(makeStringList("a", "b", "c"), "_and_"));
+        assertEquals("abc", getLib().stringJoin(makeStringList("a", "b", "c"),  ""));
+        assertEquals("abc", getLib().stringJoin(makeStringList("a", "b", "c"), null));
+        assertEquals( "a", getLib().stringJoin(makeStringList("a"), "X"));
+        assertEquals("aXc", getLib().stringJoin(makeStringList("a", null, "c"), "X"));
+        assertEquals("", getLib().stringJoin(makeStringList(), "X"));
+
+        assertEquals("abc", getLib().stringJoin(makeStringList("a", "b", "c")));
+        assertEquals("ac", getLib().stringJoin(makeStringList("a", null, "c")));
+        assertEquals("", getLib().stringJoin(makeStringList()));
+    }
+
     //
     // Boolean functions
     //

dmn-runtime/src/test/java/com/gs/dmn/feel/lib/FEELOperatorsTest.java

@@ -1060,6 +1060,14 @@ protected List<NUMBER> makeNumberList(Object... numbers) {
         return result;
     }
 
+    protected List<String> makeStringList(String... strings) {
+        List<String> result = new ArrayList<>();
+        for (String str: strings) {
+            result.add(str);
+        }
+        return result;
+    }
+
     protected DATE makeDate(String literal) {
         return getLib().date(literal);
     }

dmn-runtime/src/test/java/com/gs/dmn/feel/lib/stub/StringLibStub.java

@@ -83,6 +83,16 @@ public Boolean matches(String input, String pattern, String flags) throws Except
         throw new DMNRuntimeException("Not supported yet");
     }
 
+    @Override
+    public String stringJoin(List<String> list) {
+        throw new DMNRuntimeException("Not supported yet");
+    }
+
+    @Override
+    public String stringJoin(List<String> list, String delimiter) {
+        throw new DMNRuntimeException("Not supported yet");
+    }
+
     @Override
     public List<String> split(String string, String delimiter) {
         throw new DMNRuntimeException("Not supported yet");