Process server port (#2782)

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CppQt5QHttpEngineServerCodegen.java

@@ -17,11 +17,16 @@
 
 package org.openapitools.codegen.languages;
 
+import io.swagger.v3.oas.models.OpenAPI;
+import io.swagger.v3.oas.models.servers.Server;
+
 import org.openapitools.codegen.CodegenConfig;
 import org.openapitools.codegen.CodegenType;
 import org.openapitools.codegen.SupportingFile;
+import org.openapitools.codegen.utils.URLPathUtils;
 
 import java.io.File;
+import java.net.URL;
 
 import static org.openapitools.codegen.utils.StringUtils.*;
 
@@ -189,6 +194,13 @@ public class CppQt5QHttpEngineServerCodegen extends CppQt5AbstractCodegen implem
         return result;
     }
     
+    @Override
+    public void preprocessOpenAPI(OpenAPI openAPI) {
+        URL url = URLPathUtils.getServerURL(openAPI);
+        String port = URLPathUtils.getPort(url, "8080");
+        this.additionalProperties.put("serverPort", port);
+    }
+    
     @Override
     public String toApiFilename(String name) {
         return modelNamePrefix + sanitizeName(camelize(name)) + "ApiHandler";

modules/openapi-generator/src/main/resources/cpp-qt5-qhttpengine-server/README.md.mustache

@@ -53,6 +53,17 @@ To run the server
 ./build/src/cpp-qt5-qhttpengine-server &
 ```
 
+To override the default port via the command line, provide the parameters `port` and `address` like below
+
+```shell
+cpp-qt5-qhttpengine-server --port 9080 --address 127.17.0.1
+```
+or
+
+```shell
+cpp-qt5-qhttpengine-server -p 9080 -a 127.17.0.1
+```
+
 #### Invoke an API
 
 ```shell

modules/openapi-generator/src/main/resources/cpp-qt5-qhttpengine-server/main.cpp.mustache

@@ -58,7 +58,7 @@ int main(int argc, char * argv[])
         QStringList() << "p" << "port",
         "port to listen on",
         "port",
-        "8080"
+        "{{serverPort}}"
     );
     parser.addOption(portOption);
     parser.addHelpOption();