| // Copyright (C) 2020 The Android Open Source Project |
| // |
| // 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 com.google.gerrit.plugins.codeowners.backend; |
| |
| import com.google.common.base.Throwables; |
| import com.google.common.collect.ImmutableList; |
| import com.google.gerrit.common.Nullable; |
| import com.google.gerrit.plugins.codeowners.config.InvalidPluginConfigurationException; |
| import com.google.gerrit.server.ExceptionHook; |
| import java.util.Optional; |
| |
| /** |
| * Class to define the HTTP response status code and message for exceptions that can occur for all |
| * REST endpoints and which should not result in a 500 Internal Server Error. |
| * |
| * <p>The following exceptions are handled: |
| * |
| * <ul> |
| * <li>exception due to invalid plugin configuration ({@link |
| * InvalidPluginConfigurationException}): mapped to {@code 409 Conflict} |
| * <li>exception due to invalid code owner config files ({@link |
| * org.eclipse.jgit.errors.ConfigInvalidException}): mapped to {@code 409 Conflict} |
| * </ul> |
| */ |
| public class CodeOwnersExceptionHook implements ExceptionHook { |
| @Override |
| public boolean skipRetryWithTrace(String actionType, String actionName, Throwable throwable) { |
| return isInvalidPluginConfigurationException(throwable) |
| || isInvalidCodeOwnerConfigException(throwable); |
| } |
| |
| @Override |
| public ImmutableList<String> getUserMessages(Throwable throwable, @Nullable String traceId) { |
| if (isInvalidPluginConfigurationException(throwable) |
| || isInvalidCodeOwnerConfigException(throwable)) { |
| return ImmutableList.of(throwable.getMessage()); |
| } |
| return ImmutableList.of(); |
| } |
| |
| @Override |
| public Optional<Status> getStatus(Throwable throwable) { |
| if (isInvalidPluginConfigurationException(throwable) |
| || isInvalidCodeOwnerConfigException(throwable)) { |
| return Optional.of(Status.create(409, "Conflict")); |
| } |
| return Optional.empty(); |
| } |
| |
| private static boolean isInvalidPluginConfigurationException(Throwable throwable) { |
| return Throwables.getCausalChain(throwable).stream() |
| .anyMatch(t -> t instanceof InvalidPluginConfigurationException); |
| } |
| |
| private static boolean isInvalidCodeOwnerConfigException(Throwable throwable) { |
| return CodeOwners.getInvalidConfigCause(throwable).isPresent(); |
| } |
| } |