/*
* 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.beam.sdk.util;
import java.io.IOException;
import java.io.Serializable;
import java.util.List;
import org.apache.beam.sdk.testing.SerializableMatcher;
/**
* Bare-bones class for using sharded files.
*
* <p>For internal use only; used only in SDK tests. Must be {@link Serializable} so it can be
* shipped as a {@link SerializableMatcher}.
*/
public interface ShardedFile extends Serializable {
/**
* Reads the lines from all shards of this file using the provided {@link Sleeper} and {@link
* BackOff}.
*/
List<String> readFilesWithRetries(Sleeper sleeper, BackOff backOff)
throws IOException, InterruptedException;
}