Main.java 文件源码

public static void main(String[] args) throws IOException {
    ExtensionRegistry registry = ExtensionRegistry.newInstance();
    Options.registerAllExtensions(registry);
    PluginProtos.CodeGeneratorRequest request = PluginProtos.CodeGeneratorRequest.
            parseFrom(System.in, registry);
    PluginProtos.CodeGeneratorResponse response;
    try {
        Scope<Object> root = buildScopeTree(request);
        PluginProtos.CodeGeneratorResponse.Builder responseBuilder =
                PluginProtos.CodeGeneratorResponse.newBuilder();
        writeFiles(root, responseBuilder);
        response = responseBuilder.build();
    } catch (Exception e) {
        // 出错，报告给 protoc ，然后退出
        StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw);
        e.printStackTrace(pw);
        pw.flush();
        PluginProtos.CodeGeneratorResponse.newBuilder().setError(sw.toString()).
                build().writeTo(System.out);
        System.out.flush();
        return;
    }
    response.writeTo(System.out);
    System.out.flush();
}