Merge pull request #2035 from maddingo/bugfix/issue-2034

fixed issue 2034, added test case for issue

modules/swagger-parser-v3/src/main/java/io/swagger/v3/parser/reference/Visitor.java

@@ -62,14 +62,14 @@ public interface Visitor {
 
     Example visitExample(Example example);
 
-    default String readFile(String uri) throws Exception {
-        try (InputStream inputStream = new FileInputStream(uri)) {
+    default String readFile(String path) throws Exception {
+        try (InputStream inputStream = new FileInputStream(path)) {
             return IOUtils.toString(inputStream, UTF_8);
         }
     }
 
-    default String readClasspath(String uri) throws Exception {
-        return ClasspathHelper.loadFileFromClasspath(uri);
+    default String readClasspath(String classPath) throws Exception {
+        return ClasspathHelper.loadFileFromClasspath(classPath);
     }
     default String readHttp(String uri, List<AuthorizationValue> auths) throws Exception {
         return RemoteUrl.urlToString(uri, auths);
@@ -81,9 +81,9 @@ default String readURI(String absoluteUri, List<AuthorizationValue> auths) throw
             if (resolved.getScheme().startsWith("http")) {
                 return readHttp(absoluteUri, auths);
             } else if (resolved.getScheme().startsWith("file")) {
-                return readFile(absoluteUri);
+                return readFile(resolved.getPath());
             } else if (resolved.getScheme().startsWith("classpath")) {
-                return readClasspath(absoluteUri);
+                return readClasspath(resolved.getPath());
             }
         }
         // If no matches exists, try file

modules/swagger-parser-v3/src/test/java/io/swagger/v3/parser/test/OpenAPIV31ParserUriTest.java

@@ -0,0 +1,52 @@
+package io.swagger.v3.parser.test;
+
+
+import io.swagger.v3.parser.OpenAPIV3Parser;
+import io.swagger.v3.parser.core.models.ParseOptions;
+import io.swagger.v3.parser.core.models.SwaggerParseResult;
+import org.apache.commons.io.IOUtils;
+import org.testng.annotations.Test;
+
+import java.net.URI;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+
+import static org.testng.Assert.assertEquals;
+import static org.testng.Assert.assertNull;
+
+/**
+ * Test parsing classpath and file URIs.
+ * Before the fix, an exception is logged as an error and a message containing "(No such file or directory)"
+ * is added to the parse result.
+ * This test checks for the absence of the message.
+ */
+public class OpenAPIV31ParserUriTest {
+    @Test
+    public void resolveFileInput() throws Exception {
+        URI uri = getClass().getResource("/3.1.0/basic.yaml").toURI();
+        assertEquals(uri.getScheme(), "file");
+        String uriString = uri.toString();
+        ParseOptions options = new ParseOptions();
+        options.setResolve(true);
+        SwaggerParseResult result = new OpenAPIV3Parser().readLocation(uriString, null, options);
+        validateParseResult(result, "(No such file or directory)");
+    }
+
+    @Test
+    public void resolveClasspathInput() throws Exception {
+        URL url = getClass().getResource("/3.1.0/basic.yaml");
+        String content = IOUtils.toString(url, StandardCharsets.UTF_8);
+        ParseOptions options = new ParseOptions();
+        options.setResolve(true);
+        SwaggerParseResult result = new OpenAPIV3Parser().readContents(content, null, options, "classpath:/3.1.0/basic.yaml");
+        validateParseResult(result, "Could not find classpath:/3.1.0/basic.yaml");
+    }
+
+    private static void validateParseResult(SwaggerParseResult result, String checkForMessage) {
+        String noSuchFileMessage = result.getMessages().stream()
+            .filter(message -> message.contains(checkForMessage))
+                .findFirst()
+                .orElse(null);
+        assertNull(noSuchFileMessage);
+    }
+}