Method frameworks

src/master/readonly_handler.cpp:629–690

pair<Response, Option<Master::ReadOnlyHandler::PostProcessing>>
  Master::ReadOnlyHandler::frameworks(
      ContentType outputContentType,
      const hashmap<std::string, std::string>& query,
      const process::Owned<ObjectApprovers>& approvers) const
{
  CHECK_EQ(outputContentType, ContentType::JSON);

  IDAcceptor<FrameworkID> selectFrameworkId(
      query.get("framework_id"));

  // This lambda is consumed before the outer lambda
  // returns, hence capture by reference is fine here.
  const Master* master = this->master;
  auto frameworks = [master, &approvers, &selectFrameworkId](
      JSON::ObjectWriter* writer) {
    // Model all of the frameworks.
    writer->field(
        "frameworks",
        [master, &approvers, &selectFrameworkId](
            JSON::ArrayWriter* writer) {
          foreachvalue (
              Framework* framework, master->frameworks.registered) {
            // Skip unauthorized frameworks or frameworks
            // without a matching ID.
            if (!selectFrameworkId.accept(framework->id()) ||
                !approvers->approved<VIEW_FRAMEWORK>(framework->info)) {
              continue;
            }

            writer->element(FullFrameworkWriter(approvers, framework));
          }
        });

    // Model all of the completed frameworks.
    writer->field(
        "completed_frameworks",
        [master, &approvers, &selectFrameworkId](
            JSON::ArrayWriter* writer) {
          foreachvalue (const Owned<Framework>& framework,
                        master->frameworks.completed) {
            // Skip unauthorized frameworks or frameworks
            // without a matching ID.
            if (!selectFrameworkId.accept(framework->id()) ||
                !approvers->approved<VIEW_FRAMEWORK>(framework->info)) {
              continue;
            }

            writer->element(
                FullFrameworkWriter(approvers, framework.get()));
          }
        });

    // Unregistered frameworks are no longer possible. We emit an
    // empty array for the sake of backward compatibility.
    writer->field("unregistered_frameworks", [](JSON::ArrayWriter*) {});
  };