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feat(gax): surface actionable error messages with upload session URL and stream requirements
Augments terminal failure exceptions with the active upload session URL to aid debugging and session recovery. Clarifies error messages when a server committed offset falls below the buffer base offset.
1 parent 6269901 commit 55b7e0f

4 files changed

Lines changed: 212 additions & 5 deletions

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‎sdk-platform-java/gax-java/gax/src/main/java/com/google/api/gax/rpc/ResumableUploadFutureImpl.java‎

Lines changed: 42 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -263,9 +263,48 @@ private void fail(Throwable t) {
263263
if (inFlight != null) {
264264
inFlight.cancel(true);
265265
}
266-
progressTracker.onFailed(t, uploadSessionUrl);
267-
closePayload();
268-
resultFuture.setException(t);
266+
Throwable augmented = augmentWithUrl(t);
267+
progressTracker.onFailed(augmented, uploadSessionUrl);
268+
try {
269+
payload.close();
270+
} catch (Throwable closeException) {
271+
augmented.addSuppressed(closeException);
272+
}
273+
resultFuture.setException(augmented);
274+
}
275+
276+
private Throwable augmentWithUrl(Throwable t) {
277+
String url = uploadSessionUrl;
278+
if (url == null || url.isEmpty()) {
279+
return t;
280+
}
281+
String message = t.getMessage();
282+
if (message != null && message.contains(url)) {
283+
return t;
284+
}
285+
String baseMessage = message != null ? message : t.getClass().getSimpleName();
286+
String augmentedMessage = baseMessage + " (upload URL: " + url + ")";
287+
Throwable augmented = t;
288+
if (t instanceof ApiException) {
289+
ApiException apiException = (ApiException) t;
290+
augmented =
291+
ApiExceptionFactory.createException(
292+
augmentedMessage,
293+
apiException,
294+
apiException.getStatusCode(),
295+
apiException.isRetryable(),
296+
apiException.getErrorDetails());
297+
} else if (t instanceof IllegalStateException) {
298+
augmented = new IllegalStateException(augmentedMessage, t);
299+
} else if (t instanceof IOException) {
300+
augmented = new IOException(augmentedMessage, t);
301+
}
302+
if (augmented != t) {
303+
for (Throwable suppressed : t.getSuppressed()) {
304+
augmented.addSuppressed(suppressed);
305+
}
306+
}
307+
return augmented;
269308
}
270309

271310
private void closePayload() {

‎sdk-platform-java/gax-java/gax/src/main/java/com/google/api/gax/rpc/RewindableStreamBuffer.java‎

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -102,7 +102,8 @@ void realignTo(long committedOffset) throws IOException {
102102
throw protocolViolation(
103103
String.format(
104104
"Server committed offset %d is below buffer base offset %d for upload URL %s; cannot"
105-
+ " rewind stream before buffer base",
105+
+ " rewind stream before buffer base. A seekable stream is required to rewind to"
106+
+ " earlier offsets.",
106107
committedOffset, bufferBaseOffset, uploadUrl));
107108
}
108109

‎sdk-platform-java/gax-java/gax/src/test/java/com/google/api/gax/rpc/ResumableUploadCallableImplTest.java‎

Lines changed: 167 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -110,7 +110,11 @@ void setUp() {
110110
callContext = FakeCallContext.createDefault();
111111
executor = Executors.newScheduledThreadPool(2);
112112
clientContext =
113-
ClientContext.newBuilder().setDefaultCallContext(callContext).setExecutor(executor).build();
113+
ClientContext.newBuilder()
114+
.setDefaultCallContext(callContext)
115+
.setExecutor(executor)
116+
.setEndpoint("https://test.endpoint.com")
117+
.build();
114118
callable = new ResumableUploadCallableImpl<>(mockClient, defaultSettings, clientContext);
115119
}
116120

@@ -1331,6 +1335,168 @@ void testProgressListener_orderingUnderConcurrency_pinsSequentialExecutor() thro
13311335
}
13321336
}
13331337

1338+
@Test
1339+
void testActionableErrors_startFailure_preservesOriginalExceptionWithoutEndpointSuffix() {
1340+
ApiException startError = createApiException(401, StatusCode.Code.UNAUTHENTICATED);
1341+
when(mockStartCallable.futureCall(any(), any()))
1342+
.thenReturn(ApiFutures.immediateFailedFuture(startError));
1343+
1344+
ResumableUploadFuture<String> future =
1345+
callable.futureCall("resource-path", streamOf("hello"), null);
1346+
1347+
ExecutionException ex = assertThrows(ExecutionException.class, future::get);
1348+
assertThat(ex.getCause()).isSameInstanceAs(startError);
1349+
assertThat(ex.getCause().getMessage()).doesNotContain("endpoint:");
1350+
assertThat(future.getUploadSessionUrl()).isNull();
1351+
}
1352+
1353+
@Test
1354+
void testActionableErrors_chunkFailure_messageContainsUploadSessionUrl() {
1355+
String sessionUrl = "https://upload.url/chunk-error-test";
1356+
stubStartSession(sessionUrl);
1357+
when(mockChunkCallable.futureCall(any(ChunkUploadRequest.class), any()))
1358+
.thenReturn(
1359+
ApiFutures.immediateFailedFuture(
1360+
createApiException(403, StatusCode.Code.PERMISSION_DENIED)));
1361+
1362+
ResumableUploadFuture<String> future =
1363+
callable.futureCall("resource-path", streamOf("hello"), null);
1364+
1365+
ExecutionException ex = assertThrows(ExecutionException.class, future::get);
1366+
assertThat(ex.getCause()).isInstanceOf(ApiException.class);
1367+
assertThat(ex.getCause().getMessage()).contains(sessionUrl);
1368+
assertThat(future.getUploadSessionUrl()).isEqualTo(sessionUrl);
1369+
}
1370+
1371+
@Test
1372+
void testActionableErrors_preservesErrorDetailsCauseChainAndSuppressedExceptions() {
1373+
String sessionUrl = "https://upload.url/chunk-error-details-test";
1374+
stubStartSession(sessionUrl);
1375+
ErrorDetails errorDetails = ErrorDetails.builder().build();
1376+
ApiException original =
1377+
ApiExceptionFactory.createException(
1378+
"HTTP 403",
1379+
null,
1380+
new HttpStatusStatusCode(403, StatusCode.Code.PERMISSION_DENIED),
1381+
false,
1382+
errorDetails);
1383+
IOException suppressed = new IOException("underlying stream error");
1384+
original.addSuppressed(suppressed);
1385+
when(mockChunkCallable.futureCall(any(ChunkUploadRequest.class), any()))
1386+
.thenReturn(ApiFutures.immediateFailedFuture(original));
1387+
1388+
ResumableUploadFuture<String> future =
1389+
callable.futureCall("resource-path", streamOf("hello"), null);
1390+
1391+
ExecutionException ex = assertThrows(ExecutionException.class, future::get);
1392+
assertThat(ex.getCause()).isInstanceOf(ApiException.class);
1393+
ApiException cause = (ApiException) ex.getCause();
1394+
assertThat(cause.getMessage()).contains(sessionUrl);
1395+
assertThat(cause.getCause()).isSameInstanceAs(original);
1396+
assertThat(cause.getErrorDetails()).isSameInstanceAs(errorDetails);
1397+
assertThat(cause.getSuppressed()).asList().contains(suppressed);
1398+
assertThat(future.getUploadSessionUrl()).isEqualTo(sessionUrl);
1399+
}
1400+
1401+
@Test
1402+
void testActionableErrors_recoveryFailure_messageContainsUploadSessionUrl() {
1403+
String sessionUrl = "https://upload.url/recovery-error-test";
1404+
stubStartSession(sessionUrl);
1405+
when(mockChunkCallable.futureCall(any(ChunkUploadRequest.class), any()))
1406+
.thenReturn(
1407+
ApiFutures.immediateFailedFuture(
1408+
createApiException(400, StatusCode.Code.INVALID_ARGUMENT)));
1409+
when(mockQueryCallable.futureCall(any(QueryStatusRequest.class), any()))
1410+
.thenReturn(
1411+
ApiFutures.immediateFailedFuture(
1412+
createApiException(403, StatusCode.Code.PERMISSION_DENIED)));
1413+
1414+
ResumableUploadFuture<String> future =
1415+
callable.futureCall("resource-path", streamOf("hello"), null);
1416+
1417+
ExecutionException ex = assertThrows(ExecutionException.class, future::get);
1418+
assertThat(ex.getCause()).isInstanceOf(ApiException.class);
1419+
assertThat(ex.getCause().getMessage()).contains(sessionUrl);
1420+
assertThat(future.getUploadSessionUrl()).isEqualTo(sessionUrl);
1421+
}
1422+
1423+
@Test
1424+
void testActionableErrors_globalTimeoutFailure_messageContainsUploadSessionUrl() {
1425+
String sessionUrl = "https://upload.url/timeout-error-test";
1426+
stubStartSession(sessionUrl);
1427+
SettableApiFuture<ChunkUploadResponse<String>> hungChunk = SettableApiFuture.create();
1428+
when(mockChunkCallable.futureCall(any(ChunkUploadRequest.class), any())).thenReturn(hungChunk);
1429+
1430+
ResumableUploadCallSettings settings =
1431+
defaultSettings.toBuilder().setGlobalTimeout(Duration.ofMillis(50)).build();
1432+
1433+
ResumableUploadFuture<String> future =
1434+
callable.futureCall("resource-path", streamOf("hello"), null, settings);
1435+
1436+
ExecutionException ex =
1437+
assertThrows(ExecutionException.class, () -> future.get(5, TimeUnit.SECONDS));
1438+
assertThat(ex.getCause()).isInstanceOf(DeadlineExceededException.class);
1439+
assertThat(ex.getCause().getMessage()).contains(sessionUrl);
1440+
assertThat(future.getUploadSessionUrl()).isEqualTo(sessionUrl);
1441+
}
1442+
1443+
@Test
1444+
void testActionableErrors_rewindFailure_surfacesActionableSeekableStreamMessage() {
1445+
String sessionUrl = "https://upload.url/rewind-error-test";
1446+
stubStartSession(sessionUrl);
1447+
when(mockChunkCallable.futureCall(any(ChunkUploadRequest.class), any()))
1448+
.thenReturn(
1449+
ApiFutures.immediateFuture(
1450+
ChunkUploadResponse.create(ResumableUploadStatus.ACTIVE, null)))
1451+
.thenReturn(
1452+
ApiFutures.immediateFailedFuture(
1453+
createApiException(400, StatusCode.Code.INVALID_ARGUMENT)));
1454+
1455+
when(mockQueryCallable.futureCall(any(QueryStatusRequest.class), any()))
1456+
.thenReturn(
1457+
ApiFutures.immediateFuture(
1458+
createQueryResponse(4L, null, ResumableUploadStatus.ACTIVE)));
1459+
1460+
byte[] data = new byte[16];
1461+
ResumableUploadFuture<String> future =
1462+
callable.futureCall("resource-path", new ByteArrayInputStream(data), null);
1463+
1464+
ExecutionException ex = assertThrows(ExecutionException.class, future::get);
1465+
assertThat(ex.getCause()).isInstanceOf(FailedPreconditionException.class);
1466+
assertThat(ex.getCause().getMessage()).contains(sessionUrl);
1467+
assertThat(ex.getCause().getMessage()).contains("seekable stream");
1468+
assertThat(future.getUploadSessionUrl()).isEqualTo(sessionUrl);
1469+
}
1470+
1471+
@Test
1472+
void testUploadCallable_failureOutcome_attachesCloseExceptionViaAddSuppressed() {
1473+
when(mockStartCallable.futureCall(any(), any()))
1474+
.thenReturn(ApiFutures.immediateFailedFuture(new IllegalStateException("upload failed")));
1475+
1476+
InputStream failingStream =
1477+
new InputStream() {
1478+
@Override
1479+
public int read() {
1480+
return -1;
1481+
}
1482+
1483+
@Override
1484+
public void close() throws IOException {
1485+
throw new IOException("stream close error");
1486+
}
1487+
};
1488+
1489+
ResumableUploadFuture<String> future =
1490+
callable.futureCall("resource-path", failingStream, null);
1491+
ExecutionException exception = assertThrows(ExecutionException.class, future::get);
1492+
assertThat(exception.getCause()).isInstanceOf(IllegalStateException.class);
1493+
assertThat(exception.getCause().getSuppressed()).asList().hasSize(1);
1494+
assertThat(exception.getCause().getSuppressed()[0]).isInstanceOf(IOException.class);
1495+
assertThat(exception.getCause().getSuppressed()[0])
1496+
.hasMessageThat()
1497+
.contains("stream close error");
1498+
}
1499+
13341500
private static class HttpStatusStatusCode implements StatusCode {
13351501
private final int httpStatus;
13361502
private final StatusCode.Code code;

‎sdk-platform-java/gax-java/gax/src/test/java/com/google/api/gax/rpc/RewindableStreamBufferTest.java‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -150,6 +150,7 @@ void testRealignToBelowBaseOffset_throwsFailedPreconditionException() throws IOE
150150
assertThat(exception.getMessage()).contains("4");
151151
assertThat(exception.getMessage()).contains("8");
152152
assertThat(exception.getMessage()).contains(UPLOAD_URL);
153+
assertThat(exception.getMessage()).contains("seekable stream");
153154
}
154155

155156
@Test

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