| /* |
| * 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.hadoop.ozone.web.ozShell.volume; |
| |
| import java.util.Iterator; |
| |
| import org.apache.hadoop.ozone.client.OzoneClient; |
| import org.apache.hadoop.ozone.client.OzoneVolume; |
| import org.apache.hadoop.ozone.web.ozShell.Handler; |
| import org.apache.hadoop.ozone.web.ozShell.ObjectPrinter; |
| import org.apache.hadoop.ozone.web.ozShell.OzoneAddress; |
| import org.apache.hadoop.ozone.web.ozShell.Shell; |
| import org.apache.hadoop.security.UserGroupInformation; |
| |
| import picocli.CommandLine.Command; |
| import picocli.CommandLine.Option; |
| import picocli.CommandLine.Parameters; |
| |
| /** |
| * Executes List Volume call. |
| */ |
| @Command(name = "list", |
| aliases = "ls", |
| description = "List the volumes of a given user") |
| public class ListVolumeHandler extends Handler { |
| |
| @Parameters(arity = "1..1", |
| description = Shell.OZONE_VOLUME_URI_DESCRIPTION, |
| defaultValue = "/") |
| private String uri; |
| |
| @Option(names = {"--length", "-l"}, |
| description = "Limit of the max results", |
| defaultValue = "100") |
| private int maxVolumes; |
| |
| @Option(names = {"--start", "-s"}, |
| description = "The first volume to start the listing") |
| private String startVolume; |
| |
| @Option(names = {"--prefix", "-p"}, |
| description = "Prefix to filter the volumes") |
| private String prefix; |
| |
| @Option(names = {"--user", "-u"}, |
| description = "Owner of the volumes to list.") |
| private String userName; |
| |
| /** |
| * Executes the Client Calls. |
| */ |
| @Override |
| public Void call() throws Exception { |
| |
| OzoneAddress address = new OzoneAddress(uri); |
| address.ensureRootAddress(); |
| OzoneClient client = address.createClient(createOzoneConfiguration()); |
| |
| if (userName == null) { |
| userName = UserGroupInformation.getCurrentUser().getUserName(); |
| } |
| |
| if (maxVolumes < 1) { |
| throw new IllegalArgumentException( |
| "the length should be a positive number"); |
| } |
| |
| Iterator<? extends OzoneVolume> volumeIterator; |
| if(userName != null) { |
| volumeIterator = client.getObjectStore() |
| .listVolumesByUser(userName, prefix, startVolume); |
| } else { |
| volumeIterator = client.getObjectStore().listVolumes(prefix); |
| } |
| |
| int counter = 0; |
| while (maxVolumes > 0 && volumeIterator.hasNext()) { |
| OzoneVolume next = volumeIterator.next(); |
| ObjectPrinter.printObjectAsJson(next); |
| maxVolumes -= 1; |
| counter++; |
| } |
| |
| if (isVerbose()) { |
| System.out.printf("Found : %d volumes for user : %s ", counter, |
| userName); |
| } |
| |
| return null; |
| } |
| } |
| |