| /* |
| * 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.pulsar.packages.management.storage.filesystem; |
| |
| import com.google.common.io.ByteStreams; |
| import java.io.BufferedInputStream; |
| import java.io.BufferedOutputStream; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.nio.file.Paths; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.concurrent.CompletableFuture; |
| import lombok.Cleanup; |
| import lombok.extern.slf4j.Slf4j; |
| import org.apache.pulsar.packages.management.core.PackagesStorage; |
| import org.apache.pulsar.packages.management.core.PackagesStorageConfiguration; |
| |
| |
| /** |
| * Packages management storage implementation with filesystem. |
| */ |
| @Slf4j |
| public class FileSystemPackagesStorage implements PackagesStorage { |
| |
| private static final String STORAGE_PATH = "STORAGE_PATH"; |
| private static final String DEFAULT_STORAGE_PATH = "packages-storage"; |
| |
| private final File storagePath; |
| |
| FileSystemPackagesStorage(PackagesStorageConfiguration configuration) { |
| String storagePath = configuration.getProperty(STORAGE_PATH); |
| if (storagePath != null) { |
| this.storagePath = new File(storagePath); |
| } else { |
| this.storagePath = new File(DEFAULT_STORAGE_PATH); |
| } |
| } |
| |
| private File getPath(String path) { |
| File f = Paths.get(storagePath.toString(), path).toFile(); |
| if (!f.getParentFile().exists()) { |
| if (!f.getParentFile().mkdirs()) { |
| throw new RuntimeException("Failed to create parent dirs for " + path); |
| } |
| } |
| return f; |
| } |
| |
| @Override |
| public void initialize() { |
| if (!storagePath.exists()) { |
| if (!storagePath.mkdirs()) { |
| throw new RuntimeException("Failed to create base storage directory at " + storagePath); |
| } |
| } |
| |
| log.info("Packages management filesystem storage initialized on {}", storagePath); |
| } |
| |
| @Override |
| public CompletableFuture<Void> writeAsync(String path, InputStream inputStream) { |
| try { |
| File f = getPath(path); |
| |
| @Cleanup |
| OutputStream os = new FileOutputStream(f); |
| |
| @Cleanup |
| BufferedOutputStream bos = new BufferedOutputStream(os); |
| ByteStreams.copy(inputStream, bos); |
| |
| return CompletableFuture.completedFuture(null); |
| } catch (IOException e) { |
| CompletableFuture<Void> f = new CompletableFuture<>(); |
| f.completeExceptionally(e); |
| return f; |
| } |
| } |
| |
| @Override |
| public CompletableFuture<Void> readAsync(String path, OutputStream outputStream) { |
| try { |
| @Cleanup |
| InputStream is = new FileInputStream(getPath(path)); |
| |
| @Cleanup |
| BufferedInputStream bis = new BufferedInputStream(is); |
| ByteStreams.copy(bis, outputStream); |
| |
| return CompletableFuture.completedFuture(null); |
| } catch (IOException e) { |
| CompletableFuture<Void> f = new CompletableFuture<>(); |
| f.completeExceptionally(e); |
| return f; |
| } |
| } |
| |
| @Override |
| public CompletableFuture<Void> deleteAsync(String path) { |
| if (getPath(path).delete()) { |
| return CompletableFuture.completedFuture(null); |
| } else { |
| CompletableFuture<Void> f = new CompletableFuture<>(); |
| f.completeExceptionally(new IOException("Failed to delete file at " + path)); |
| return f; |
| } |
| } |
| |
| @Override |
| public CompletableFuture<List<String>> listAsync(String path) { |
| String[] files = getPath(path).list(); |
| if (files == null) { |
| return CompletableFuture.completedFuture(Collections.emptyList()); |
| } else { |
| return CompletableFuture.completedFuture(Arrays.asList(files)); |
| } |
| } |
| |
| @Override |
| public CompletableFuture<Boolean> existAsync(String path) { |
| return CompletableFuture.completedFuture(getPath(path).exists()); |
| } |
| |
| @Override |
| public CompletableFuture<Void> closeAsync() { |
| return CompletableFuture.completedFuture(null); |
| } |
| |
| @Override |
| public String dataPath() { |
| return "/data"; |
| } |
| } |