使用
中的方法https://christiandietrich.wordpress.com/2011/10/15/xtext-calling-the-generator-from-a-context-menu/
调用模型到文本转换的函数。用于生成文本文件的类与示例中的类不同:
class TransformMcrl2{
def doGenerate(Resource input, IFileSystemAccess2 fsa, IGeneratorContext context) {
fsa.generateFile("testfile.txt" , "Content")
}
}
以及用于调用doGenerate
// load the Xtext model to an XtextResourceSet
XtextResourceSet resourceSet = aresourceSetProvider.get();
// get the resource and resolve all references
Resource resource = resourceSet.getResource(uri, true);
EcoreUtil.resolveAll(resource);
IResource documentResource = xtextDocument.getAdapter(IResource.class);
IProject project = documentResource.getProject();
final EclipseResourceFileSystemAccess2 fsa = fileAccessProvider.get();
IFolder srcGenFolder = project.getFolder("lps-gen");
if (!srcGenFolder.exists()) {
try {
srcGenFolder.create(true, true, new NullProgressMonitor());
} catch (CoreException e) {
return null;
}
}
fsa.setProject(project);
String tmpFileName = srcGenFolder.getFullPath().toString();
fsa.setOutputPath(tmpFileName);
TransformMcrl2 generator = new TransformMcrl2();
generator.doGenerate(resource, fsa, new GeneratorContext());
方法doGenerate给出异常InvocationTargetException
并且itws原因指示错误是NullPointerException。
我是否需要继承IGenerator?
此外,org.eclipse.xtext.builder.participant
未被禁用,因为需要多个模型进行文字对话。
答案 0 :(得分:1)
确保
fsa.setOutputPath("xxx")