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org.jclouds.fallbacks.PropagateIfRetryAfter Maven / Gradle / Ivy

/**
 * Licensed to jclouds, Inc. (jclouds) under one or more
 * contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  jclouds 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.jclouds.fallbacks;

import com.google.common.util.concurrent.FutureFallback;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.inject.ImplementedBy;

/**
 * propagates as {@link org.jclouds.rest.RetryAfterException} if a Throwable contains information such as a retry
 * offset.
 * 
 * @author Adrian Cole
 */
@ImplementedBy(HeaderToRetryAfterException.class)
public interface PropagateIfRetryAfter extends FutureFallback {
   /**
    * if input is not of type {@link org.jclouds.http.HttpResponseException}, this method propagates. Otherwise, immediate future of
    * {@code null}, if didn't coerce to {@link org.jclouds.rest.RetryAfterException}
    */
   @Override
   ListenableFuture create(Throwable t);

}