fix: update Grpc Retry Conformance after new additions to testbench

Author: BenWhitehead

google-cloud-storage/src/main/java/com/google/cloud/storage/GrpcRetryAlgorithmManager.java

@@ -86,11 +86,11 @@ public ResultRetryAlgorithm<?> getFor(CreateNotificationConfigRequest req) {
   }
 
   public ResultRetryAlgorithm<?> getFor(DeleteBucketRequest req) {
-    return retryStrategy.getNonidempotentHandler();
+    return retryStrategy.getIdempotentHandler();
   }
 
   public ResultRetryAlgorithm<?> getFor(DeleteHmacKeyRequest req) {
-    return retryStrategy.getNonidempotentHandler();
+    return retryStrategy.getIdempotentHandler();
   }
 
   public ResultRetryAlgorithm<?> getFor(DeleteNotificationConfigRequest req) {

google-cloud-storage/src/main/java/com/google/cloud/storage/GrpcStorageImpl.java

@@ -262,8 +262,32 @@ public Blob create(
   @Override
   public Blob create(BlobInfo blobInfo, InputStream content, BlobWriteOption... options) {
     try {
-      return createFrom(blobInfo, content, options);
-    } catch (IOException e) {
+      requireNonNull(blobInfo, "blobInfo must be non null");
+      InputStream inputStreamParam = firstNonNull(content, new ByteArrayInputStream(ZERO_BYTES));
+
+      Opts<ObjectTargetOpt> optsWithDefaults = Opts.unwrap(options).prepend(defaultOpts);
+      GrpcCallContext grpcCallContext =
+          optsWithDefaults.grpcMetadataMapper().apply(GrpcCallContext.createDefault());
+      WriteObjectRequest req = getWriteObjectRequest(blobInfo, optsWithDefaults);
+      Hasher hasher = Hasher.enabled();
+      GrpcCallContext merge = Utils.merge(grpcCallContext, Retrying.newCallContext());
+      UnbufferedWritableByteChannelSession<WriteObjectResponse> session =
+          ResumableMedia.gapic()
+              .write()
+              .byteChannel(storageClient.writeObjectCallable().withDefaultCallContext(merge))
+              .setByteStringStrategy(ByteStringStrategy.noCopy())
+              .setHasher(hasher)
+              .direct()
+              .unbuffered()
+              .setRequest(req)
+              .build();
+
+      try (UnbufferedWritableByteChannel c = session.open()) {
+        ByteStreams.copy(Channels.newChannel(inputStreamParam), c);
+      }
+      ApiFuture<WriteObjectResponse> responseApiFuture = session.getResult();
+      return this.getBlob(responseApiFuture);
+    } catch (IOException | ApiException e) {
       throw StorageException.coalesce(e);
     }
   }
@@ -549,17 +573,20 @@ public boolean delete(String bucket, BucketSourceOption... options) {
     DeleteBucketRequest.Builder builder =
         DeleteBucketRequest.newBuilder().setName(bucketNameCodec.encode(bucket));
     DeleteBucketRequest req = opts.deleteBucketsRequest().apply(builder).build();
-    try {
-      GrpcCallContext merge = Utils.merge(grpcCallContext, Retrying.newCallContext());
-      Retrying.run(
-          getOptions(),
-          retryAlgorithmManager.getFor(req),
-          () -> storageClient.deleteBucketCallable().call(req, merge),
-          Decoder.identity());
-      return true;
-    } catch (StorageException e) {
-      return false;
-    }
+    GrpcCallContext merge = Utils.merge(grpcCallContext, Retrying.newCallContext());
+    return Boolean.TRUE.equals(
+        Retrying.run(
+            getOptions(),
+            retryAlgorithmManager.getFor(req),
+            () -> {
+              try {
+                storageClient.deleteBucketCallable().call(req, merge);
+                return true;
+              } catch (NotFoundException e) {
+                return false;
+              }
+            },
+            Decoder.identity()));
   }
 
   @Override
@@ -760,11 +787,19 @@ public GrpcBlobWriteChannel writer(BlobInfo blobInfo, BlobWriteOption... options
         opts.grpcMetadataMapper().apply(GrpcCallContext.createDefault());
     WriteObjectRequest req = getWriteObjectRequest(blobInfo, opts);
     Hasher hasher = Hasher.noop();
+    // in JSON, the starting of the resumable session happens before the invocation of write can
+    // happen. Emulate the same thing here.
+    //  1. create the future
+    ApiFuture<ResumableWrite> startResumableWrite = startResumableWrite(grpcCallContext, req);
+    //  2. await the result of the future
+    ResumableWrite resumableWrite = ApiFutureUtils.await(startResumableWrite);
+    //  3. wrap the result in another future container before constructing the BlobWriteChannel
+    ApiFuture<ResumableWrite> wrapped = ApiFutures.immediateFuture(resumableWrite);
     return new GrpcBlobWriteChannel(
         storageClient.writeObjectCallable(),
         getOptions(),
         retryAlgorithmManager.idempotent(),
-        () -> startResumableWrite(grpcCallContext, req),
+        () -> wrapped,
         hasher);
   }