com.azure.cosmos.implementation.changefeed.implementation.ObserverExceptionWrappingChangeFeedObserverDecorator Maven / Gradle / Ivy
// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
package com.azure.cosmos.implementation.changefeed.implementation;
import com.azure.cosmos.implementation.changefeed.ChangeFeedObserver;
import com.azure.cosmos.implementation.changefeed.ChangeFeedObserverCloseReason;
import com.azure.cosmos.implementation.changefeed.ChangeFeedObserverContext;
import com.azure.cosmos.implementation.changefeed.exceptions.ObserverException;
import com.fasterxml.jackson.databind.JsonNode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import reactor.core.publisher.Mono;
import java.util.List;
/**
* Exception wrapping decorator implementation for {@link ChangeFeedObserver}.
*/
class ObserverExceptionWrappingChangeFeedObserverDecorator implements ChangeFeedObserver {
private final Logger logger = LoggerFactory.getLogger(ObserverExceptionWrappingChangeFeedObserverDecorator.class);
private ChangeFeedObserver changeFeedObserver;
public ObserverExceptionWrappingChangeFeedObserverDecorator(ChangeFeedObserver changeFeedObserver) {
this.changeFeedObserver = changeFeedObserver;
}
@Override
public void open(ChangeFeedObserverContext context) {
try {
this.changeFeedObserver.open(context);
}
catch (RuntimeException userException)
{
this.logger.warn("Exception thrown during ChangeFeedObserver.open from thread {}", Thread.currentThread().getId(), userException);
throw new ObserverException(userException);
}
}
@Override
public void close(ChangeFeedObserverContext context, ChangeFeedObserverCloseReason reason) {
try {
this.changeFeedObserver.close(context, reason);
}
catch (RuntimeException userException)
{
this.logger.warn("Exception thrown during ChangeFeedObserver.close from thread {}", Thread.currentThread().getId(), userException);
throw new ObserverException(userException);
}
}
@Override
public Mono processChanges(ChangeFeedObserverContext context, List docs) {
return this.changeFeedObserver.processChanges(context, docs)
.doOnError(throwable -> {
this.logger.warn("Exception thrown during ChangeFeedObserver.processChanges from thread {}", Thread.currentThread().getId(), throwable);
});
}
}