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ApiServiceUtils.java
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ApiServiceUtils.java
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/*
* Copyright 2020 Google LLC
*
* 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.cloud.pubsublite.internal.wire;
import static com.google.cloud.pubsublite.internal.ExtractStatus.toCanonical;
import com.google.api.core.AbstractApiService;
import com.google.api.core.ApiService;
import com.google.api.gax.rpc.ApiException;
import com.google.cloud.pubsublite.internal.CheckedApiException;
import com.google.common.collect.ImmutableList;
import com.google.common.flogger.GoogleLogger;
public class ApiServiceUtils {
private static final GoogleLogger LOGGER = GoogleLogger.forEnclosingClass();
private ApiServiceUtils() {}
public static ApiService autoCloseableAsApiService(AutoCloseable resource) {
return new AbstractApiService() {
@Override
protected void doStart() {
notifyStarted();
}
@Override
protected void doStop() {
try {
resource.close();
notifyStopped();
} catch (Exception e) {
notifyFailed(toCanonical(e));
}
}
};
}
public static void stopAsync(Iterable<? extends ApiService> services) throws ApiException {
CheckedApiException lastException = null;
for (ApiService service : services) {
try {
service.stopAsync();
} catch (Throwable t) {
LOGGER.atFine().withCause(t).log("Exception in service shutdown.");
lastException = toCanonical(t);
}
}
if (lastException != null) {
throw lastException.underlying;
}
}
public static void blockingShutdown(Iterable<? extends ApiService> services) throws ApiException {
CheckedApiException lastException = null;
for (ApiService service : services) {
try {
service.stopAsync();
service.awaitTerminated();
} catch (Throwable t) {
LOGGER.atFine().withCause(t).log("Exception in service shutdown.");
lastException = toCanonical(t);
}
}
if (lastException != null) {
throw lastException.underlying;
}
}
public static void blockingShutdown(ApiService service) {
blockingShutdown(ImmutableList.of(service));
}
}