以编程方式修改Xtext生成的Mwe2工作流

Question

我正在以编程方式运行Mwe2工作流，为了成功运行此工作流，我需要将Terminals.xtext的referencedResource添加到GenerateYourdsl.Mwe2文件中。提到的GenerateYourdsl.mwe2文件是在我创建新项目时由Xtext生成的--我没有修改它。是否有可能从这个工作流中获取对象，用Java访问它，并将这个属性添加到工作流组件属性的语言属性中？

以下是工作流程：

Workflow {

    component = XtextGenerator {
        configuration = {
            project = StandardProjectConfig {
                baseName = "org.example.yourdsl"
                rootPath = rootPath
                eclipsePlugin = {
                    enabled = true
                }
                createEclipseMetaData = true
            }
            code = {
                encoding = "UTF-8"
                lineDelimiter = "\n"
                fileHeader = "/*\n * generated by Xtext \${version}\n */"
            }
        }
        language = StandardLanguage {
            name = "org.example.yourdsl.YourDsl"
            fileExtensions = "yourdsl"
            //following line needs to be added - in original generated workflow it is not
           referencedResource = "platform:/resource/org.eclipse.xtext/org/eclipse/xtext/common/Terminals.xtext"

            serializer = {
                generateStub = false
            }
            validator = {
                // composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"
                // Generates checks for @Deprecated grammar annotations, an IssueProvider and a corresponding PropertyPage
                generateDeprecationValidation = true
            }
        }
    }
}

XtextLinkingDiagnostic: null:1 Couldn't resolve reference to Grammar 'org.eclipse.xtext.common.Terminals'.
TransformationDiagnostic: null:36 Cannot create datatype WS. If this is supposed to return EString, make sure you have imported 'http://www.eclipse.org/emf/2002/Ecore' (ErrorCode: NoSuchTypeAvailable)
TransformationDiagnostic: null:39 Cannot create datatype NAME_TERMINAL. If this is supposed to return EString, make sure you have imported 'http://www.eclipse.org/emf/2002/Ecore' (ErrorCode: NoSuchTypeAvailable)
TransformationDiagnostic: null:42 Cannot create datatype VALUE_TERMINAL. If this is supposed to return EString, make sure you have imported 'http://www.eclipse.org/emf/2002/Ecore' (ErrorCode: NoSuchTypeAvailable)

Answer 1

应该不需要明确地添加终端语法。如果使用正确的类路径调用工作流，则应该通过org.eclipse.xtext.resource.ClassLoaderClasspathuriResolver.resolve（Object,URI)在类路径上找到它。看看向导在选择maven时创建了什么：调用maven exec插件，使用适当的类路径调用Mwe2Launcher main