/** * 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.hbase.chaos.actions; import java.io.IOException; import org.apache.commons.lang3.RandomStringUtils; import org.apache.hadoop.hbase.TableName; import org.apache.hadoop.hbase.client.Admin; import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor; import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder; import org.apache.hadoop.hbase.client.TableDescriptor; import org.apache.hadoop.hbase.client.TableDescriptorBuilder; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * Action the adds a column family to a table. */ public class AddColumnAction extends Action { private final TableName tableName; private Admin admin; private static final Logger LOG = LoggerFactory.getLogger(AddColumnAction.class); public AddColumnAction(TableName tableName) { this.tableName = tableName; } @Override protected Logger getLogger() { return LOG; } @Override public void init(ActionContext context) throws IOException { super.init(context); this.admin = context.getHBaseIntegrationTestingUtility().getAdmin(); } @Override public void perform() throws Exception { TableDescriptor tableDescriptor = admin.getDescriptor(tableName); ColumnFamilyDescriptor columnDescriptor = null; while (columnDescriptor == null || tableDescriptor.getColumnFamily(columnDescriptor.getName()) != null) { columnDescriptor = ColumnFamilyDescriptorBuilder.of(RandomStringUtils.randomAlphabetic(5)); } // Don't try the modify if we're stopping if (context.isStopping()) { return; } getLogger().debug("Performing action: Adding " + columnDescriptor + " to " + tableName); TableDescriptor modifiedTable = TableDescriptorBuilder.newBuilder(tableDescriptor) .setColumnFamily(columnDescriptor).build(); admin.modifyTable(modifiedTable); } }