org.apache.nifi.flow.resource.ExternalResourceConflictResolutionStrategy Maven / Gradle / Ivy
/*
* 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.nifi.flow.resource;
import java.io.File;
/**
* Might be used by provider service in order to decide if an available resource should be acquired from the external provider.
*/
public interface ExternalResourceConflictResolutionStrategy {
/**
* @param targetDirectory The target directory.
* @param available Descriptor of the available resource.
*
* @return Returns true if the resource should be fetched from the provider. Returns false otherwise.
*/
boolean shouldBeFetched(File targetDirectory, ExternalResourceDescriptor available);
}