-
Notifications
You must be signed in to change notification settings - Fork 3.9k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge branch 'grpc:master' into master
- Loading branch information
Showing
92 changed files
with
1,308 additions
and
1,160 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| /* | ||
| * Copyright 2024 The gRPC Authors | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package io.grpc; | ||
|
|
||
| import static com.google.common.base.Preconditions.checkArgument; | ||
| import static com.google.common.base.Preconditions.checkNotNull; | ||
|
|
||
| import com.google.common.base.MoreObjects; | ||
| import com.google.common.base.MoreObjects.ToStringHelper; | ||
| import com.google.common.base.Objects; | ||
| import javax.annotation.Nullable; | ||
|
|
||
| /** Either a Status or a value. */ | ||
| @ExperimentalApi("https://github.com/grpc/grpc-java/issues/11563") | ||
| public class StatusOr<T> { | ||
| private StatusOr(Status status, T value) { | ||
| this.status = status; | ||
| this.value = value; | ||
| } | ||
|
|
||
| /** Construct from a value. */ | ||
| public static <T> StatusOr<T> fromValue(@Nullable T value) { | ||
| StatusOr<T> result = new StatusOr<T>(null, value); | ||
| return result; | ||
| } | ||
|
|
||
| /** Construct from a non-Ok status. */ | ||
| public static <T> StatusOr<T> fromStatus(Status status) { | ||
| StatusOr<T> result = new StatusOr<T>(checkNotNull(status, "status"), null); | ||
| checkArgument(!status.isOk(), "cannot use OK status: %s", status); | ||
| return result; | ||
| } | ||
|
|
||
| /** Returns whether there is a value. */ | ||
| public boolean hasValue() { | ||
| return status == null; | ||
| } | ||
|
|
||
| /** | ||
| * Returns the value if set or throws exception if there is no value set. This method is meant | ||
| * to be called after checking the return value of hasValue() first. | ||
| */ | ||
| public @Nullable T getValue() { | ||
| if (status != null) { | ||
| throw new IllegalStateException("No value present."); | ||
| } | ||
| return value; | ||
| } | ||
|
|
||
| /** Returns the status. If there is a value (which can be null), returns OK. */ | ||
| public Status getStatus() { | ||
| return status == null ? Status.OK : status; | ||
| } | ||
|
|
||
| @Override | ||
| public boolean equals(Object other) { | ||
| if (!(other instanceof StatusOr)) { | ||
| return false; | ||
| } | ||
| StatusOr<?> otherStatus = (StatusOr<?>) other; | ||
| if (hasValue() != otherStatus.hasValue()) { | ||
| return false; | ||
| } | ||
| if (hasValue()) { | ||
| return Objects.equal(value, otherStatus.value); | ||
| } | ||
| return Objects.equal(status, otherStatus.status); | ||
| } | ||
|
|
||
| @Override | ||
| public int hashCode() { | ||
| return Objects.hashCode(status, value); | ||
| } | ||
|
|
||
| @Override | ||
| public String toString() { | ||
| ToStringHelper stringHelper = MoreObjects.toStringHelper(this); | ||
| if (status == null) { | ||
| stringHelper.add("value", value); | ||
| } else { | ||
| stringHelper.add("error", status); | ||
| } | ||
| return stringHelper.toString(); | ||
| } | ||
|
|
||
| private final Status status; | ||
| private final T value; | ||
| } |
Oops, something went wrong.