| /* |
| * 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.jackrabbit.oak.plugins.blob; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.InputStream; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| |
| import com.google.common.base.Predicate; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.Maps; |
| import com.google.common.io.Files; |
| import org.apache.commons.io.FileUtils; |
| import org.apache.commons.io.IOUtils; |
| import org.apache.commons.io.serialization.ValidatingObjectInputStream; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import static org.apache.jackrabbit.oak.plugins.blob.DataStoreCacheUtils.recursiveDelete; |
| |
| /** |
| * Utility methods to upgrade Old DataStore cache |
| * {@link org.apache.jackrabbit.core.data.CachingDataStore}. |
| */ |
| public class DataStoreCacheUpgradeUtils { |
| private static final Logger LOG = LoggerFactory.getLogger(DataStoreCacheUpgradeUtils.class); |
| |
| static final String UPLOAD_MAP = "async-pending-uploads.ser"; |
| static final String UPLOAD_STAGING_DIR = UploadStagingCache.UPLOAD_STAGING_DIR; |
| static final String DOWNLOAD_DIR = FileCache.DOWNLOAD_DIR; |
| |
| /** |
| * De-serialize the pending uploads map from {@link org.apache.jackrabbit.core.data.AsyncUploadCache}. |
| * |
| * @param homeDir the directory where the serialized file is maintained |
| * @return the de-serialized map |
| */ |
| private static Map<String, Long> deSerializeUploadMap(File homeDir) { |
| Map<String, Long> asyncUploadMap = Maps.newHashMap(); |
| |
| File asyncUploadMapFile = new File(homeDir, UPLOAD_MAP); |
| if (asyncUploadMapFile.exists()) { |
| String path = asyncUploadMapFile.getAbsolutePath(); |
| |
| InputStream fis = null; |
| try { |
| fis = (new FileInputStream(path)); |
| ValidatingObjectInputStream input = new ValidatingObjectInputStream(fis); |
| input.accept(HashMap.class, Map.class, Number.class, Long.class, String.class); |
| asyncUploadMap = (Map<String, Long>) input.readObject(); |
| } catch (Exception e) { |
| LOG.error("Error in reading pending uploads map [{}] from location [{}]", UPLOAD_MAP, |
| homeDir, e); |
| } finally { |
| IOUtils.closeQuietly(fis); |
| } |
| LOG.debug("AsyncUploadMap read [{}]", asyncUploadMap); |
| } |
| return asyncUploadMap; |
| } |
| |
| /** |
| * Delete the serialized pending uploads map from the file system. |
| * |
| * @param homeDir the repository home directory |
| */ |
| private static void deleteSerializedUploadMap(File homeDir) { |
| File uploadMap = new File(homeDir, UPLOAD_MAP); |
| FileUtils.deleteQuietly(uploadMap); |
| LOG.info("Deleted asyncUploadMap [{}] from [{}]", UPLOAD_MAP, homeDir); |
| } |
| |
| private static boolean notInExceptions(File file, List<String> exceptions) { |
| String parent = file.getParent(); |
| for (String exception : exceptions) { |
| if (parent.contains(exception)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Move the DataStore downloaded cache files to the appropriate folder used by the new cache |
| * {@link FileCache} |
| * @param path the root of the datastore |
| */ |
| public static void moveDownloadCache(final File path) { |
| final List<String> exceptions = ImmutableList.of("tmp", UPLOAD_STAGING_DIR, DOWNLOAD_DIR); |
| File newDownloadDir = new File(path, DOWNLOAD_DIR); |
| |
| Iterator<File> iterator = |
| Files.fileTreeTraverser().postOrderTraversal(path) |
| .filter(new Predicate<File>() { |
| @Override public boolean apply(File input) { |
| return input.isFile() |
| && !input.getParentFile().equals(path) |
| && !notInExceptions(input, exceptions); |
| } |
| }).iterator(); |
| |
| while (iterator.hasNext()) { |
| File download = iterator.next(); |
| LOG.trace("Download cache file absolute pre-upgrade path " + download); |
| |
| File newDownload = new File(newDownloadDir, |
| download.getAbsolutePath().substring(path.getAbsolutePath().length())); |
| newDownload.getParentFile().mkdirs(); |
| LOG.trace("Downloaded cache file absolute post-upgrade path " + newDownload); |
| |
| try { |
| FileUtils.moveFile(download, newDownload); |
| LOG.info("Download cache file [{}] moved to [{}]", download, newDownload); |
| recursiveDelete(download, path); |
| } catch (Exception e) { |
| LOG.warn("Unable to move download cache file [{}] to [{}]", download, newDownload); |
| } |
| } |
| } |
| |
| /** |
| * Move the pending uploads read from the de-serialized map to the appropriate directory |
| * used by the {@link UploadStagingCache}. |
| * |
| * @param homeDir the repository home directory |
| * @param path the root of the datastore |
| * @param deleteMap flag indicating whether to delete the pending upload map after upgrade |
| */ |
| public static void movePendingUploadsToStaging(File homeDir, File path, boolean deleteMap) { |
| File newUploadDir = new File(path, UPLOAD_STAGING_DIR); |
| if (homeDir != null && homeDir.exists()) { |
| Map<String, Long> pendingUploads = deSerializeUploadMap(homeDir); |
| Iterator<String> pendingFileIter = pendingUploads.keySet().iterator(); |
| |
| while (pendingFileIter.hasNext()) { |
| String file = pendingFileIter.next(); |
| File upload = new File(path, file); |
| LOG.trace("Pending upload absolute path " + upload.getAbsolutePath()); |
| |
| File newUpload = new File(newUploadDir, file); |
| LOG.trace("Pending upload upgrade absolute path " + newUpload.getAbsolutePath()); |
| |
| newUpload.getParentFile().mkdirs(); |
| |
| if (upload.exists()) { |
| LOG.trace(upload + " File exists"); |
| try { |
| FileUtils.moveFile(upload, newUpload); |
| LOG.info("Pending upload file [{}] moved to [{}]", upload, newUpload); |
| recursiveDelete(upload, path); |
| } catch (Exception e) { |
| LOG.warn("Unable to move pending upload file [{}] to [{}]", upload, |
| newUpload); |
| } |
| } else { |
| LOG.warn("File [{}] does not exist", upload); |
| } |
| } |
| |
| if (deleteMap) { |
| deleteSerializedUploadMap(homeDir); |
| } |
| } |
| } |
| |
| /** |
| * Upgrades the {@link org.apache.jackrabbit.core.data.CachingDataStore}. |
| * |
| * @param homeDir the repository home directory |
| * @param path the root of the datastore |
| * @param moveCache flag whether to move the downloaded cache files |
| * @param deleteMap flag indicating whether to delete the pending upload map after upgrade |
| */ |
| public static void upgrade(File homeDir, File path, boolean moveCache, boolean deleteMap) { |
| movePendingUploadsToStaging(homeDir, path, deleteMap); |
| |
| if (moveCache) { |
| moveDownloadCache(path); |
| } |
| } |
| } |