GH-1463: support concatenated strings while extracting request mapping path information

Author: martinlippert

headless-services/spring-boot-language-server/src/main/java/org/springframework/ide/vscode/boot/java/utils/ASTUtils.java

@@ -224,12 +224,14 @@ public static String getExpressionValueAsString(Expression exp, Consumer<ITypeBi
 			else if (exp instanceof SimpleName) {
 				return ((SimpleName) exp).getIdentifier();
 			}
-			else {
-				return null;
-			}
 		} else {
-			return null;
+			Object constValue = exp.resolveConstantExpressionValue();
+			if (constValue != null) {
+				return constValue.toString();
+			}
 		}
+		
+		return null;
 	}
 
 	@SuppressWarnings("unchecked")

headless-services/spring-boot-language-server/src/test/java/org/springframework/ide/vscode/boot/java/requestmapping/test/RequestMappingSymbolProviderTest.java

@@ -383,6 +383,20 @@ void testMediaTypes() throws Exception {
         assertTrue(containsSymbol(symbols, "@/produce3 - Content-Type: text/plain,testproducetype", docUri, 33, 1, 33, 94));
         assertTrue(containsSymbol(symbols, "@/everything - Accept: application/json,text/plain,testconsume - Content-Type: application/json", docUri, 38, 1, 38, 170));
     }
+    
+    @Test
+    void testPathWithConcatenatedString() throws Exception {
+        String docUri = directory.toPath().resolve("src/main/java/org/test/MappingsWithConcatenatedStrings.java").toUri().toString();
+        List<? extends WorkspaceSymbol> symbols =  indexer.getSymbols(docUri);
+        assertTrue(containsSymbol(symbols, "@/path1/path2 -- GET", docUri, 13, 1, 13, 33));
+    }
+
+    @Test
+    void testPathWithConcatenatedStringAndConstantInvolved() throws Exception {
+        String docUri = directory.toPath().resolve("src/main/java/org/test/MappingsWithConcatenatedStrings.java").toUri().toString();
+        List<? extends WorkspaceSymbol> symbols =  indexer.getSymbols(docUri);
+        assertTrue(containsSymbol(symbols, "@/path1/path/from/constant -- GET", docUri, 17, 1, 17, 56));
+    }
 
 	private boolean containsSymbol(List<? extends WorkspaceSymbol> symbols, String name, String uri, int startLine, int startCHaracter, int endLine, int endCharacter) {
 		for (Iterator<? extends WorkspaceSymbol> iterator = symbols.iterator(); iterator.hasNext();) {

headless-services/spring-boot-language-server/src/test/resources/test-projects/test-request-mapping-symbols/src/main/java/org/test/MappingsWithConcatenatedStrings.java

@@ -0,0 +1,22 @@
+package org.test;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PatchMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import static org.springframework.web.bind.annotation.RequestMethod.PUT;
+
+public class MappingsWithConcatenatedStrings {
+	
+	@GetMapping("/path1" + "/path2")
+	public void concatenatedPathMapping() {
+	}
+
+	@GetMapping("/path1/" + Constants.REQUEST_MAPPING_PATH)
+	public void concatenatedPathMappingWithConstant() {
+	}
+
+}