DATAMONGO-1710 - Adopt to changed AnnotationUtils.getValue(…) and OperatorNode.getRightOperand() behavior.

Related ticket: SPR-15540.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/SpelExpressionTransformer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2013-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -52,6 +52,7 @@ import org.springframework.util.ObjectUtils;
  *
  * @author Thomas Darimont
  * @author Christoph Strobl
+ * @author Mark Paluch
  */
 class SpelExpressionTransformer implements AggregationExpressionTransformer {
 
@@ -258,8 +259,10 @@ class SpelExpressionTransformer implements AggregationExpressionTransformer {
 				return convertUnaryMinusOp(context, leftResult);
 			}
 
+			if (!currentNode.isUnaryOperator()) {
 				// we deliberately ignore the RHS result
 				transform(currentNode.getRight(), currentNode, operationObject, context);
+			}
 
 			return operationObject;
 		}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/spel/LiteralNode.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2013-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -34,6 +34,7 @@ import org.springframework.expression.spel.ast.StringLiteral;
  *
  * @author Oliver Gierke
  * @author Christoph Strobl
+ * @author Mark Paluch
  */
 public class LiteralNode extends ExpressionNode {
 
@@ -78,7 +79,7 @@ public class LiteralNode extends ExpressionNode {
 		}
 
 		OperatorNode operator = (OperatorNode) parent;
-		return operator.isUnaryMinus() && operator.getRight() == null;
+		return operator.isUnaryMinus();
 	}
 
 	/*

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/spel/OperatorNode.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2013-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,21 +22,7 @@ import java.util.Map;
 import java.util.Set;
 
 import org.springframework.expression.spel.ExpressionState;
-import org.springframework.expression.spel.ast.OpAnd;
+import org.springframework.expression.spel.ast.*;
-import org.springframework.expression.spel.ast.OpDivide;
-import org.springframework.expression.spel.ast.OpEQ;
-import org.springframework.expression.spel.ast.OpGE;
-import org.springframework.expression.spel.ast.OpGT;
-import org.springframework.expression.spel.ast.OpLE;
-import org.springframework.expression.spel.ast.OpLT;
-import org.springframework.expression.spel.ast.OpMinus;
-import org.springframework.expression.spel.ast.OpModulus;
-import org.springframework.expression.spel.ast.OpMultiply;
-import org.springframework.expression.spel.ast.OpNE;
-import org.springframework.expression.spel.ast.OpOr;
-import org.springframework.expression.spel.ast.OpPlus;
-import org.springframework.expression.spel.ast.Operator;
-import org.springframework.expression.spel.ast.OperatorPower;
 
 /**
  * An {@link ExpressionNode} representing an operator.
@@ -44,6 +30,7 @@ import org.springframework.expression.spel.ast.OperatorPower;
  * @author Oliver Gierke
  * @author Thomas Darimont
  * @author Christoph Strobl
+ * @author Mark Paluch
  */
 public class OperatorNode extends ExpressionNode {
 
@@ -126,7 +113,7 @@ public class OperatorNode extends ExpressionNode {
 	 * @return
 	 */
 	public boolean isUnaryOperator() {
-		return operator.getRightOperand() == null;
+		return operator.getChildCount() == 1;
 	}
 
 	/**

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/MongoQueryMethod.java

@@ -93,7 +93,7 @@ public class MongoQueryMethod extends QueryMethod {
 	 * @return
 	 */
 	public boolean hasAnnotatedQuery() {
-		return getAnnotatedQuery() != null;
+		return findAnnotatedQuery().isPresent();
 	}
 
 	/**
@@ -103,9 +103,15 @@ public class MongoQueryMethod extends QueryMethod {
 	 * @return
 	 */
 	String getAnnotatedQuery() {
+		return findAnnotatedQuery().orElse(null);
+	}
 
-		String query = (String) AnnotationUtils.getValue(getQueryAnnotation());
+	private Optional<String> findAnnotatedQuery() {
-		return StringUtils.hasText(query) ? query : null;
+
+		return Optional.ofNullable(getQueryAnnotation()) //
+				.map(AnnotationUtils::getValue) //
+				.map(it -> (String) it) //
+				.filter(StringUtils::hasText);
 	}
 
 	/**
@@ -115,8 +121,10 @@ public class MongoQueryMethod extends QueryMethod {
 	 */
 	String getFieldSpecification() {
 
-		String value = (String) AnnotationUtils.getValue(getQueryAnnotation(), "fields");
+		return Optional.ofNullable(getQueryAnnotation()) //
-		return StringUtils.hasText(value) ? value : null;
+				.map(it -> (String) AnnotationUtils.getValue(it, "fields")) //
+				.filter(StringUtils::hasText) //
+				.orElse(null);
 	}
 
 	/*