feat(expressions): add built-in function 'or' and 'and' to ScEL

Author: fhussonnois

connect-file-pulse-expression/src/main/java/io/streamthoughts/kafka/connect/filepulse/expression/function/ExpressionFunctionExecutors.java

@@ -20,6 +20,7 @@
 
 import io.streamthoughts.kafka.connect.filepulse.expression.Expression;
 import io.streamthoughts.kafka.connect.filepulse.expression.ExpressionException;
+import io.streamthoughts.kafka.connect.filepulse.expression.function.impl.And;
 import io.streamthoughts.kafka.connect.filepulse.expression.function.impl.Concat;
 import io.streamthoughts.kafka.connect.filepulse.expression.function.impl.ConcatWs;
 import io.streamthoughts.kafka.connect.filepulse.expression.function.impl.Converts;
@@ -35,6 +36,7 @@
 import io.streamthoughts.kafka.connect.filepulse.expression.function.impl.Matches;
 import io.streamthoughts.kafka.connect.filepulse.expression.function.impl.Nlv;
 import io.streamthoughts.kafka.connect.filepulse.expression.function.impl.Length;
+import io.streamthoughts.kafka.connect.filepulse.expression.function.impl.Or;
 import io.streamthoughts.kafka.connect.filepulse.expression.function.impl.ReplaceAll;
 import io.streamthoughts.kafka.connect.filepulse.expression.function.impl.Split;
 import io.streamthoughts.kafka.connect.filepulse.expression.function.impl.StartsWith;
@@ -89,6 +91,8 @@ private ExpressionFunctionExecutors() {
         register(new Split());
         register(new UnixTimestamp());
         register(new If());
+        register(new And());
+        register(new Or());
     }
 
     @SuppressWarnings("unchecked")

connect-file-pulse-expression/src/main/java/io/streamthoughts/kafka/connect/filepulse/expression/function/impl/And.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2021 StreamThoughts.
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.streamthoughts.kafka.connect.filepulse.expression.function.impl;
+
+import io.streamthoughts.kafka.connect.filepulse.data.TypedValue;
+import io.streamthoughts.kafka.connect.filepulse.expression.function.Arguments;
+import io.streamthoughts.kafka.connect.filepulse.expression.function.ExpressionFunction;
+import io.streamthoughts.kafka.connect.filepulse.expression.function.GenericArgument;
+
+import java.util.stream.StreamSupport;
+
+public class And implements ExpressionFunction {
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public TypedValue apply(final Arguments<GenericArgument> args) {
+        final boolean result = StreamSupport
+                .stream(args.spliterator(), false)
+                .map(it -> (TypedValue) it.value())
+                .filter(TypedValue::isNotNull)
+                .allMatch(TypedValue::getBool);
+        return TypedValue.bool(result);
+    }
+}

connect-file-pulse-expression/src/main/java/io/streamthoughts/kafka/connect/filepulse/expression/function/impl/Or.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2021 StreamThoughts.
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.streamthoughts.kafka.connect.filepulse.expression.function.impl;
+
+import io.streamthoughts.kafka.connect.filepulse.data.TypedValue;
+import io.streamthoughts.kafka.connect.filepulse.expression.function.Arguments;
+import io.streamthoughts.kafka.connect.filepulse.expression.function.ExpressionFunction;
+import io.streamthoughts.kafka.connect.filepulse.expression.function.GenericArgument;
+
+import java.util.stream.StreamSupport;
+
+public class Or implements ExpressionFunction {
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public TypedValue apply(final Arguments<GenericArgument> args) {
+        final boolean result = StreamSupport
+                .stream(args.spliterator(), false)
+                .map(it -> (TypedValue) it.value())
+                .filter(TypedValue::isNotNull)
+                .anyMatch(TypedValue::getBool);
+
+        return TypedValue.bool(result);
+    }
+}

connect-file-pulse-expression/src/test/java/io/streamthoughts/kafka/connect/filepulse/expression/function/impl/FunctionsTest.java

@@ -218,4 +218,20 @@ public void should_execute_if_function() {
         Assert.assertTrue(expressionTrue.readValue(context, TypedValue.class).value());
         Assert.assertFalse(expressionFalse.readValue(context, TypedValue.class).value());
     }
+
+    @Test
+    public void should_execute_or_function() {
+        Expression expressionTrue =  parseExpression("{{ or(true, false) }}");
+        Expression expressionFalse = parseExpression("{{ or(false, false) }}");
+        Assert.assertTrue(expressionTrue.readValue(new StandardEvaluationContext(new Object()), TypedValue.class).value());
+        Assert.assertFalse(expressionFalse.readValue(new StandardEvaluationContext(new Object()), TypedValue.class).value());
+    }
+
+    @Test
+    public void should_execute_and_function() {
+        Expression expressionTrue =  parseExpression("{{ and(true, true) }}");
+        Expression expressionFalse = parseExpression("{{ and(true, false) }}");
+        Assert.assertTrue(expressionTrue.readValue(new StandardEvaluationContext(new Object()), TypedValue.class).value());
+        Assert.assertFalse(expressionFalse.readValue(new StandardEvaluationContext(new Object()), TypedValue.class).value());
+    }
 }