scribec 0.1.0

A client library for Facebook Scribe Server.
Documentation
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
// Autogenerated by Thrift Compiler (0.15.0)
// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING

#![allow(unused_imports)]
#![allow(unused_extern_crates)]
#![allow(clippy::too_many_arguments, clippy::type_complexity, clippy::vec_box)]
#![cfg_attr(rustfmt, rustfmt_skip)]

use std::cell::RefCell;
use std::collections::{BTreeMap, BTreeSet};
use std::convert::{From, TryFrom};
use std::default::Default;
use std::error::Error;
use std::fmt;
use std::fmt::{Display, Formatter};
use std::rc::Rc;

use thrift::OrderedFloat;
use thrift::{ApplicationError, ApplicationErrorKind, ProtocolError, ProtocolErrorKind, TThriftClient};
use thrift::protocol::{TFieldIdentifier, TListIdentifier, TMapIdentifier, TMessageIdentifier, TMessageType, TInputProtocol, TOutputProtocol, TSetIdentifier, TStructIdentifier, TType};
use thrift::protocol::field_id;
use thrift::protocol::verify_expected_message_type;
use thrift::protocol::verify_expected_sequence_number;
use thrift::protocol::verify_expected_service_call;
use thrift::protocol::verify_required_field_exists;
use thrift::server::TProcessor;

use crate::fb303;

#[derive(Copy, Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct ResultCode(pub i32);

impl ResultCode {
  pub const OK: ResultCode = ResultCode(0);
  pub const TRY_LATER: ResultCode = ResultCode(1);
  pub const ENUM_VALUES: &'static [Self] = &[
    Self::OK,
    Self::TRY_LATER,
  ];
  #[allow(clippy::trivially_copy_pass_by_ref)]
  pub fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    o_prot.write_i32(self.0)
  }
  pub fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<ResultCode> {
    let enum_value = i_prot.read_i32()?;
    Ok(ResultCode::from(enum_value))
  }
}

impl From<i32> for ResultCode {
  fn from(i: i32) -> Self {
    match i {
      0 => ResultCode::OK,
      1 => ResultCode::TRY_LATER,
      _ => ResultCode(i)
    }
  }
}

impl From<&i32> for ResultCode {
  fn from(i: &i32) -> Self {
    ResultCode::from(*i)
  }
}

impl From<ResultCode> for i32 {
  fn from(e: ResultCode) -> i32 {
    e.0
  }
}

impl From<&ResultCode> for i32 {
  fn from(e: &ResultCode) -> i32 {
    e.0
  }
}

//
// LogEntry
//

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct LogEntry {
  pub category: Option<String>,
  pub message: Option<String>,
}

impl LogEntry {
  pub fn new<F1, F2>(category: F1, message: F2) -> LogEntry where F1: Into<Option<String>>, F2: Into<Option<String>> {
    LogEntry {
      category: category.into(),
      message: message.into(),
    }
  }
  pub fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<LogEntry> {
    i_prot.read_struct_begin()?;
    let mut f_1: Option<String> = Some("".to_owned());
    let mut f_2: Option<String> = Some("".to_owned());
    loop {
      let field_ident = i_prot.read_field_begin()?;
      if field_ident.field_type == TType::Stop {
        break;
      }
      let field_id = field_id(&field_ident)?;
      match field_id {
        1 => {
          let val = i_prot.read_string()?;
          f_1 = Some(val);
        },
        2 => {
          let val = i_prot.read_string()?;
          f_2 = Some(val);
        },
        _ => {
          i_prot.skip(field_ident.field_type)?;
        },
      };
      i_prot.read_field_end()?;
    }
    i_prot.read_struct_end()?;
    let ret = LogEntry {
      category: f_1,
      message: f_2,
    };
    Ok(ret)
  }
  pub fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    let struct_ident = TStructIdentifier::new("LogEntry");
    o_prot.write_struct_begin(&struct_ident)?;
    if let Some(ref fld_var) = self.category {
      o_prot.write_field_begin(&TFieldIdentifier::new("category", TType::String, 1))?;
      o_prot.write_string(fld_var)?;
      o_prot.write_field_end()?
    }
    if let Some(ref fld_var) = self.message {
      o_prot.write_field_begin(&TFieldIdentifier::new("message", TType::String, 2))?;
      o_prot.write_string(fld_var)?;
      o_prot.write_field_end()?
    }
    o_prot.write_field_stop()?;
    o_prot.write_struct_end()
  }
}

impl Default for LogEntry {
  fn default() -> Self {
    LogEntry{
      category: Some("".to_owned()),
      message: Some("".to_owned()),
    }
  }
}

//
// scribe service client
//

pub trait TScribeSyncClient : fb303::TBaseServiceSyncClient {
  fn log(&mut self, messages: Vec<LogEntry>) -> thrift::Result<ResultCode>;
}

pub trait TScribeSyncClientMarker {}

pub struct ScribeSyncClient<IP, OP> where IP: TInputProtocol, OP: TOutputProtocol {
  _i_prot: IP,
  _o_prot: OP,
  _sequence_number: i32,
}

impl <IP, OP> ScribeSyncClient<IP, OP> where IP: TInputProtocol, OP: TOutputProtocol {
  pub fn new(input_protocol: IP, output_protocol: OP) -> ScribeSyncClient<IP, OP> {
    ScribeSyncClient { _i_prot: input_protocol, _o_prot: output_protocol, _sequence_number: 0 }
  }
}

impl <IP, OP> TThriftClient for ScribeSyncClient<IP, OP> where IP: TInputProtocol, OP: TOutputProtocol {
  fn i_prot_mut(&mut self) -> &mut dyn TInputProtocol { &mut self._i_prot }
  fn o_prot_mut(&mut self) -> &mut dyn TOutputProtocol { &mut self._o_prot }
  fn sequence_number(&self) -> i32 { self._sequence_number }
  fn increment_sequence_number(&mut self) -> i32 { self._sequence_number += 1; self._sequence_number }
}

impl <IP, OP> TScribeSyncClientMarker for ScribeSyncClient<IP, OP> where IP: TInputProtocol, OP: TOutputProtocol {}
impl <IP, OP> fb303::TBaseServiceSyncClientMarker for ScribeSyncClient<IP, OP> where IP: TInputProtocol, OP: TOutputProtocol {}

impl <C: TThriftClient + TScribeSyncClientMarker + fb303::TBaseServiceSyncClientMarker> TScribeSyncClient for C {
  fn log(&mut self, messages: Vec<LogEntry>) -> thrift::Result<ResultCode> {
    (
      {
        self.increment_sequence_number();
        let message_ident = TMessageIdentifier::new("Log", TMessageType::Call, self.sequence_number());
        let call_args = ScribeLogArgs { messages };
        self.o_prot_mut().write_message_begin(&message_ident)?;
        call_args.write_to_out_protocol(self.o_prot_mut())?;
        self.o_prot_mut().write_message_end()?;
        self.o_prot_mut().flush()
      }
    )?;
    {
      let message_ident = self.i_prot_mut().read_message_begin()?;
      verify_expected_sequence_number(self.sequence_number(), message_ident.sequence_number)?;
      verify_expected_service_call("Log", &message_ident.name)?;
      if message_ident.message_type == TMessageType::Exception {
        let remote_error = thrift::Error::read_application_error_from_in_protocol(self.i_prot_mut())?;
        self.i_prot_mut().read_message_end()?;
        return Err(thrift::Error::Application(remote_error))
      }
      verify_expected_message_type(TMessageType::Reply, message_ident.message_type)?;
      let result = ScribeLogResult::read_from_in_protocol(self.i_prot_mut())?;
      self.i_prot_mut().read_message_end()?;
      result.ok_or()
    }
  }
}

//
// scribe service processor
//

pub trait ScribeSyncHandler : fb303::BaseServiceSyncHandler {
  fn handle_log(&self, messages: Vec<LogEntry>) -> thrift::Result<ResultCode>;
}

pub struct ScribeSyncProcessor<H: ScribeSyncHandler> {
  handler: H,
}

impl <H: ScribeSyncHandler> ScribeSyncProcessor<H> {
  pub fn new(handler: H) -> ScribeSyncProcessor<H> {
    ScribeSyncProcessor {
      handler,
    }
  }
  fn process_log(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    TScribeProcessFunctions::process_log(&self.handler, incoming_sequence_number, i_prot, o_prot)
  }
  fn process_get_status(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    fb303::TBaseServiceProcessFunctions::process_get_status(&self.handler, incoming_sequence_number, i_prot, o_prot)
  }
  fn process_get_name(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    fb303::TBaseServiceProcessFunctions::process_get_name(&self.handler, incoming_sequence_number, i_prot, o_prot)
  }
  fn process_get_version(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    fb303::TBaseServiceProcessFunctions::process_get_version(&self.handler, incoming_sequence_number, i_prot, o_prot)
  }
  fn process_get_status_details(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    fb303::TBaseServiceProcessFunctions::process_get_status_details(&self.handler, incoming_sequence_number, i_prot, o_prot)
  }
  fn process_get_counters(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    fb303::TBaseServiceProcessFunctions::process_get_counters(&self.handler, incoming_sequence_number, i_prot, o_prot)
  }
  fn process_get_regex_counters(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    fb303::TBaseServiceProcessFunctions::process_get_regex_counters(&self.handler, incoming_sequence_number, i_prot, o_prot)
  }
  fn process_get_selected_counters(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    fb303::TBaseServiceProcessFunctions::process_get_selected_counters(&self.handler, incoming_sequence_number, i_prot, o_prot)
  }
  fn process_get_counter(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    fb303::TBaseServiceProcessFunctions::process_get_counter(&self.handler, incoming_sequence_number, i_prot, o_prot)
  }
  fn process_get_exported_values(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    fb303::TBaseServiceProcessFunctions::process_get_exported_values(&self.handler, incoming_sequence_number, i_prot, o_prot)
  }
  fn process_get_selected_exported_values(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    fb303::TBaseServiceProcessFunctions::process_get_selected_exported_values(&self.handler, incoming_sequence_number, i_prot, o_prot)
  }
  fn process_get_regex_exported_values(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    fb303::TBaseServiceProcessFunctions::process_get_regex_exported_values(&self.handler, incoming_sequence_number, i_prot, o_prot)
  }
  fn process_get_exported_value(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    fb303::TBaseServiceProcessFunctions::process_get_exported_value(&self.handler, incoming_sequence_number, i_prot, o_prot)
  }
  fn process_set_option(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    fb303::TBaseServiceProcessFunctions::process_set_option(&self.handler, incoming_sequence_number, i_prot, o_prot)
  }
  fn process_get_option(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    fb303::TBaseServiceProcessFunctions::process_get_option(&self.handler, incoming_sequence_number, i_prot, o_prot)
  }
  fn process_get_options(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    fb303::TBaseServiceProcessFunctions::process_get_options(&self.handler, incoming_sequence_number, i_prot, o_prot)
  }
  fn process_alive_since(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    fb303::TBaseServiceProcessFunctions::process_alive_since(&self.handler, incoming_sequence_number, i_prot, o_prot)
  }
}

pub struct TScribeProcessFunctions;

impl TScribeProcessFunctions {
  pub fn process_log<H: ScribeSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    let args = ScribeLogArgs::read_from_in_protocol(i_prot)?;
    match handler.handle_log(args.messages) {
      Ok(handler_return) => {
        let message_ident = TMessageIdentifier::new("Log", TMessageType::Reply, incoming_sequence_number);
        o_prot.write_message_begin(&message_ident)?;
        let ret = ScribeLogResult { result_value: Some(handler_return) };
        ret.write_to_out_protocol(o_prot)?;
        o_prot.write_message_end()?;
        o_prot.flush()
      },
      Err(e) => {
        match e {
          thrift::Error::Application(app_err) => {
            let message_ident = TMessageIdentifier::new("Log", TMessageType::Exception, incoming_sequence_number);
            o_prot.write_message_begin(&message_ident)?;
            thrift::Error::write_application_error_to_out_protocol(&app_err, o_prot)?;
            o_prot.write_message_end()?;
            o_prot.flush()
          },
          _ => {
            let ret_err = {
              ApplicationError::new(
                ApplicationErrorKind::Unknown,
                e.to_string()
              )
            };
            let message_ident = TMessageIdentifier::new("Log", TMessageType::Exception, incoming_sequence_number);
            o_prot.write_message_begin(&message_ident)?;
            thrift::Error::write_application_error_to_out_protocol(&ret_err, o_prot)?;
            o_prot.write_message_end()?;
            o_prot.flush()
          },
        }
      },
    }
  }
}

impl <H: ScribeSyncHandler> TProcessor for ScribeSyncProcessor<H> {
  fn process(&self, i_prot: &mut dyn TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    let message_ident = i_prot.read_message_begin()?;
    let res = match &*message_ident.name {
      "Log" => {
        self.process_log(message_ident.sequence_number, i_prot, o_prot)
      },
      "getStatus" => {
        self.process_get_status(message_ident.sequence_number, i_prot, o_prot)
      },
      "getName" => {
        self.process_get_name(message_ident.sequence_number, i_prot, o_prot)
      },
      "getVersion" => {
        self.process_get_version(message_ident.sequence_number, i_prot, o_prot)
      },
      "getStatusDetails" => {
        self.process_get_status_details(message_ident.sequence_number, i_prot, o_prot)
      },
      "getCounters" => {
        self.process_get_counters(message_ident.sequence_number, i_prot, o_prot)
      },
      "getRegexCounters" => {
        self.process_get_regex_counters(message_ident.sequence_number, i_prot, o_prot)
      },
      "getSelectedCounters" => {
        self.process_get_selected_counters(message_ident.sequence_number, i_prot, o_prot)
      },
      "getCounter" => {
        self.process_get_counter(message_ident.sequence_number, i_prot, o_prot)
      },
      "getExportedValues" => {
        self.process_get_exported_values(message_ident.sequence_number, i_prot, o_prot)
      },
      "getSelectedExportedValues" => {
        self.process_get_selected_exported_values(message_ident.sequence_number, i_prot, o_prot)
      },
      "getRegexExportedValues" => {
        self.process_get_regex_exported_values(message_ident.sequence_number, i_prot, o_prot)
      },
      "getExportedValue" => {
        self.process_get_exported_value(message_ident.sequence_number, i_prot, o_prot)
      },
      "setOption" => {
        self.process_set_option(message_ident.sequence_number, i_prot, o_prot)
      },
      "getOption" => {
        self.process_get_option(message_ident.sequence_number, i_prot, o_prot)
      },
      "getOptions" => {
        self.process_get_options(message_ident.sequence_number, i_prot, o_prot)
      },
      "aliveSince" => {
        self.process_alive_since(message_ident.sequence_number, i_prot, o_prot)
      },
      method => {
        Err(
          thrift::Error::Application(
            ApplicationError::new(
              ApplicationErrorKind::UnknownMethod,
              format!("unknown method {}", method)
            )
          )
        )
      },
    };
    thrift::server::handle_process_result(&message_ident, res, o_prot)
  }
}

//
// ScribeLogArgs
//

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
struct ScribeLogArgs {
  messages: Vec<LogEntry>,
}

impl ScribeLogArgs {
  fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<ScribeLogArgs> {
    i_prot.read_struct_begin()?;
    let mut f_1: Option<Vec<LogEntry>> = None;
    loop {
      let field_ident = i_prot.read_field_begin()?;
      if field_ident.field_type == TType::Stop {
        break;
      }
      let field_id = field_id(&field_ident)?;
      match field_id {
        1 => {
          let list_ident = i_prot.read_list_begin()?;
          let mut val: Vec<LogEntry> = Vec::with_capacity(list_ident.size as usize);
          for _ in 0..list_ident.size {
            let list_elem_0 = LogEntry::read_from_in_protocol(i_prot)?;
            val.push(list_elem_0);
          }
          i_prot.read_list_end()?;
          f_1 = Some(val);
        },
        _ => {
          i_prot.skip(field_ident.field_type)?;
        },
      };
      i_prot.read_field_end()?;
    }
    i_prot.read_struct_end()?;
    verify_required_field_exists("ScribeLogArgs.messages", &f_1)?;
    let ret = ScribeLogArgs {
      messages: f_1.expect("auto-generated code should have checked for presence of required fields"),
    };
    Ok(ret)
  }
  fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    let struct_ident = TStructIdentifier::new("Log_args");
    o_prot.write_struct_begin(&struct_ident)?;
    o_prot.write_field_begin(&TFieldIdentifier::new("messages", TType::List, 1))?;
    o_prot.write_list_begin(&TListIdentifier::new(TType::Struct, self.messages.len() as i32))?;
    for e in &self.messages {
      e.write_to_out_protocol(o_prot)?;
    }
    o_prot.write_list_end()?;
    o_prot.write_field_end()?;
    o_prot.write_field_stop()?;
    o_prot.write_struct_end()
  }
}

//
// ScribeLogResult
//

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
struct ScribeLogResult {
  result_value: Option<ResultCode>,
}

impl ScribeLogResult {
  fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<ScribeLogResult> {
    i_prot.read_struct_begin()?;
    let mut f_0: Option<ResultCode> = None;
    loop {
      let field_ident = i_prot.read_field_begin()?;
      if field_ident.field_type == TType::Stop {
        break;
      }
      let field_id = field_id(&field_ident)?;
      match field_id {
        0 => {
          let val = ResultCode::read_from_in_protocol(i_prot)?;
          f_0 = Some(val);
        },
        _ => {
          i_prot.skip(field_ident.field_type)?;
        },
      };
      i_prot.read_field_end()?;
    }
    i_prot.read_struct_end()?;
    let ret = ScribeLogResult {
      result_value: f_0,
    };
    Ok(ret)
  }
  fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
    let struct_ident = TStructIdentifier::new("ScribeLogResult");
    o_prot.write_struct_begin(&struct_ident)?;
    if let Some(ref fld_var) = self.result_value {
      o_prot.write_field_begin(&TFieldIdentifier::new("result_value", TType::I32, 0))?;
      fld_var.write_to_out_protocol(o_prot)?;
      o_prot.write_field_end()?
    }
    o_prot.write_field_stop()?;
    o_prot.write_struct_end()
  }
  fn ok_or(self) -> thrift::Result<ResultCode> {
    if self.result_value.is_some() {
      Ok(self.result_value.unwrap())
    } else {
      Err(
        thrift::Error::Application(
          ApplicationError::new(
            ApplicationErrorKind::MissingResult,
            "no result received for ScribeLog"
          )
        )
      )
    }
  }
}