| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.atlas.repository.store.graph.v2.tasks.searchdownload; |
| |
| import org.apache.atlas.ApplicationProperties; |
| import org.apache.atlas.discovery.AtlasDiscoveryService; |
| import org.apache.atlas.model.tasks.AtlasTask; |
| import org.apache.atlas.tasks.AbstractTask; |
| import org.apache.atlas.tasks.TaskFactory; |
| import org.apache.atlas.type.AtlasTypeRegistry; |
| import org.apache.commons.configuration.Configuration; |
| import org.apache.commons.lang.ArrayUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.springframework.context.annotation.Bean; |
| import org.springframework.scheduling.annotation.EnableScheduling; |
| import org.springframework.scheduling.annotation.Scheduled; |
| import org.springframework.stereotype.Service; |
| |
| import javax.inject.Inject; |
| import javax.inject.Singleton; |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.attribute.BasicFileAttributes; |
| import java.util.ArrayList; |
| import java.util.Date; |
| import java.util.List; |
| |
| @Singleton |
| @Service |
| @EnableScheduling |
| public class SearchResultDownloadTaskFactory implements TaskFactory { |
| private static final Logger LOG = LoggerFactory.getLogger(SearchResultDownloadTaskFactory.class); |
| |
| public static final String SEARCH_RESULT_DOWNLOAD = "SEARCH_RESULT_DOWNLOAD"; |
| public static int MAX_PENDING_TASKS_ALLOWED; |
| private static final int MAX_PENDING_TASKS_ALLOWED_DEFAULT = 50; |
| private static final String MAX_PENDING_TASKS_ALLOWED_KEY = "atlas.download.search.max.pending.tasks"; |
| private static final String FILES_CLEANUP_INTERVAL = "0 0/1 * * * *"; |
| private static final long FILE_EXP_DURATION_IN_MILLIS_DEFAULT = 24 * 60 * 60 * 1000; |
| private static long FILE_EXP_DURATION_IN_MILLIS; |
| private static final String FILE_EXP_DURATION_IN_MILLIS_KEY = "atlas.download.search.file.expiry.millis"; |
| private static Configuration configuration; |
| |
| static { |
| try { |
| configuration = ApplicationProperties.get(); |
| } catch (Exception e) { |
| LOG.info("Failed to load application properties", e); |
| } |
| if (configuration != null) { |
| MAX_PENDING_TASKS_ALLOWED = configuration.getInt(MAX_PENDING_TASKS_ALLOWED_KEY, MAX_PENDING_TASKS_ALLOWED_DEFAULT); |
| FILE_EXP_DURATION_IN_MILLIS = configuration.getLong(FILE_EXP_DURATION_IN_MILLIS_KEY, FILE_EXP_DURATION_IN_MILLIS_DEFAULT); |
| } else { |
| MAX_PENDING_TASKS_ALLOWED = MAX_PENDING_TASKS_ALLOWED_DEFAULT; |
| FILE_EXP_DURATION_IN_MILLIS = FILE_EXP_DURATION_IN_MILLIS_DEFAULT; |
| } |
| } |
| |
| private static final List<String> supportedTypes = new ArrayList<String>() {{ |
| add(SEARCH_RESULT_DOWNLOAD); |
| }}; |
| |
| private final AtlasDiscoveryService discoveryService; |
| private final AtlasTypeRegistry typeRegistry; |
| |
| @Inject |
| public SearchResultDownloadTaskFactory(AtlasDiscoveryService discoveryService, AtlasTypeRegistry typeRegistry) { |
| this.discoveryService = discoveryService; |
| this.typeRegistry = typeRegistry; |
| } |
| |
| @Override |
| public AbstractTask create(AtlasTask task) { |
| String taskType = task.getType(); |
| String taskGuid = task.getGuid(); |
| |
| switch (taskType) { |
| case SEARCH_RESULT_DOWNLOAD: |
| return new SearchResultDownloadTask(task, discoveryService, typeRegistry); |
| |
| default: |
| LOG.warn("Type: {} - {} not found!. The task will be ignored.", taskType, taskGuid); |
| return null; |
| } |
| } |
| |
| @Override |
| public List<String> getSupportedTypes() { |
| return this.supportedTypes; |
| } |
| |
| @Scheduled(cron = "#{getCronExpressionForCleanup}") |
| public void cleanupExpiredFiles() { |
| File csvDir = new File(SearchResultDownloadTask.DOWNLOAD_DIR_PATH); |
| deleteFiles(csvDir); |
| } |
| |
| @Bean |
| private String getCronExpressionForCleanup() { |
| return FILES_CLEANUP_INTERVAL; |
| } |
| |
| private void deleteFiles(File downloadDir) { |
| |
| File[] subDirs = downloadDir.listFiles(); |
| |
| if (ArrayUtils.isNotEmpty(subDirs)) { |
| for (File subDir : subDirs) { |
| File[] csvFiles = subDir.listFiles(); |
| |
| if (ArrayUtils.isNotEmpty(csvFiles)) { |
| for (File csv : csvFiles) { |
| BasicFileAttributes attr; |
| |
| try { |
| attr = Files.readAttributes(csv.toPath(), BasicFileAttributes.class); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| |
| Date now = new Date(); |
| long fileAgeInMillis = now.getTime() - attr.creationTime().toMillis(); |
| |
| if (FILE_EXP_DURATION_IN_MILLIS < fileAgeInMillis) { |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("deleting file: {}", csv.getName()); |
| } |
| csv.delete(); |
| } |
| } |
| } |
| } |
| } |
| } |
| } |