| /* |
| * 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.drill.exec.store.openTSDB; |
| |
| import org.apache.drill.shaded.guava.com.google.common.base.Splitter; |
| import org.apache.drill.common.exceptions.UserException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Map; |
| |
| public class Util { |
| |
| private static final Logger log = LoggerFactory.getLogger(Util.class); |
| |
| /** |
| * Parse FROM parameters to Map representation |
| * |
| * @param rowData with this syntax (metric=warp.speed.test) |
| * @return Map with params key: metric, value: warp.speed.test |
| */ |
| public static Map<String, String> fromRowData(String rowData) { |
| try { |
| String fromRowData = rowData.replaceAll("[()]", ""); |
| return Splitter.on(",").trimResults().omitEmptyStrings().withKeyValueSeparator("=").split(fromRowData); |
| } catch (IllegalArgumentException e) { |
| throw UserException.validationError() |
| .message(String.format("Syntax error in the query %s", rowData)) |
| .build(log); |
| } |
| } |
| |
| /** |
| * @param name Metric name |
| * @return Valid metric name |
| */ |
| public static String getValidTableName(String name) { |
| if (!isTableNameValid(name)) { |
| name = fromRowData(name).get("metric"); |
| } |
| return name; |
| } |
| |
| /** |
| * @param name Metric name |
| * @return true if name is valid |
| */ |
| public static boolean isTableNameValid(String name) { |
| return !name.contains("="); |
| } |
| } |