| /* |
| * 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.fluo.command; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| |
| import com.beust.jcommander.Parameter; |
| import com.beust.jcommander.Parameters; |
| import org.apache.commons.io.FileUtils; |
| import org.apache.fluo.api.config.FluoConfiguration; |
| import org.apache.fluo.core.client.FluoAdminImpl; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| @Parameters(commandNames = "get-jars", |
| commandDescription = "Copies <app> jars from DFS to local <dir>") |
| public class FluoGetJars extends AppCommand { |
| |
| private static final Logger log = LoggerFactory.getLogger(FluoGetJars.class); |
| |
| @Parameter(names = "-d", required = true, description = "Download directory path") |
| private String downloadPath; |
| |
| String getDownloadPath() { |
| return downloadPath; |
| } |
| |
| @Override |
| public void execute() throws FluoCommandException { |
| FluoConfiguration config = getConfig(); |
| |
| CommandUtil.verifyAppInitialized(config); |
| config = FluoAdminImpl.mergeZookeeperConfig(config); |
| if (config.getObserverJarsUrl().isEmpty()) { |
| log.info("No observer jars found for the '{}' Fluo application!", getApplicationName()); |
| return; |
| } |
| |
| if (config.getObserverJarsUrl().startsWith("hdfs://")) { |
| try (FileSystem fs = FileSystem.get(new URI(config.getDfsRoot()), new Configuration())) { |
| File downloadPathFile = new File(getDownloadPath()); |
| if (downloadPathFile.exists()) { |
| FileUtils.deleteDirectory(downloadPathFile); |
| } |
| fs.copyToLocalFile(new Path(config.getObserverJarsUrl()), new Path(getDownloadPath())); |
| } catch (URISyntaxException e) { |
| throw new FluoCommandException( |
| String.format("Error parsing DFS ROOT URI: %s", e.getMessage()), e); |
| } catch (IOException e) { |
| throw new FluoCommandException(e); |
| } |
| } else { |
| throw new FluoCommandException(String.format("Unsupported url prefix for %s=%s", |
| FluoConfiguration.OBSERVER_JARS_URL_PROP, config.getObserverJarsUrl())); |
| } |
| } |
| } |