saga-core/src/main/java/org/apache/servicecomb/saga/core/BackwardRecovery.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.servicecomb.saga.core;

import java.lang.invoke.MethodHandles;
import kamon.annotation.EnableKamon;
import kamon.annotation.Segment;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


@EnableKamon
public class BackwardRecovery implements RecoveryPolicy {

  private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());

  @Segment(name = "backwardPolicy", category = "application", library = "kamon")
  @Override
  public SagaResponse apply(SagaTask task, SagaRequest request, SagaResponse parentResponse) {
    try {
      return request.transaction().send(request.serviceName(), parentResponse);
    } catch (Exception e) {
      log.error("Applying {} policy due to failure in transaction {} of service {}",
          description(),
          request.transaction(),
          request.serviceName(),
          e
      );

      task.abort(request, e);
      throw e;
    }
  }

  @Override
  public String description() {
    return getClass().getSimpleName();
  }
}