| /* |
| * 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.sling.feature.io.artifacts.spi; |
| |
| import java.io.IOException; |
| import java.net.URL; |
| |
| import org.osgi.annotation.versioning.ConsumerType; |
| |
| /** |
| * The artifact provider is an extension point for providing artifacts |
| * from different sources, like for example s3. |
| */ |
| @ConsumerType |
| public interface ArtifactProvider { |
| |
| /** |
| * The protocol name of the provider, e.g. "s3" |
| * @return The protocol name. |
| */ |
| String getProtocol(); |
| |
| /** |
| * Initialize the provider. |
| * @param context The context |
| * @throws IOException If the provider can't be initialized. |
| */ |
| void init(ArtifactProviderContext context) throws IOException; |
| |
| /** |
| * Shutdown the provider. |
| */ |
| void shutdown(); |
| |
| /** |
| * Get a local file for the artifact URL. |
| * |
| * @param url Artifact url |
| * @param relativeCachePath A relative path that can be used as a cache path |
| * by the provider. The path does not start with a slash. |
| * @return A local url if the artifact exists or {@code null} |
| */ |
| URL getArtifact(String url, String relativeCachePath); |
| } |