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Load: New SQL grammer
LOAD <filePath> with ('k'='v', ...) (apache#1…
…3466) Co-authored-by: Steve Yurong Su <rong@apache.org>
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100
...e/src/main/java/org/apache/iotdb/db/storageengine/load/config/LoadTsFileConfigurator.java
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|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
|
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| package org.apache.iotdb.db.storageengine.load.config; | ||
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| import org.apache.iotdb.db.conf.IoTDBDescriptor; | ||
| import org.apache.iotdb.db.exception.sql.SemanticException; | ||
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| import org.apache.commons.lang3.StringUtils; | ||
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| import java.util.Arrays; | ||
| import java.util.Collections; | ||
| import java.util.HashSet; | ||
| import java.util.Map; | ||
| import java.util.Set; | ||
|
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| public class LoadTsFileConfigurator { | ||
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| public static void validateParameters(final String key, final String value) { | ||
| switch (key) { | ||
| case DATABASE_LEVEL_KEY: | ||
| validateDatabaseLevelParam(value); | ||
| break; | ||
| case ON_SUCCESS_KEY: | ||
| validateOnSuccessParam(value); | ||
| break; | ||
| default: | ||
| throw new SemanticException("Invalid parameter '" + key + "' for LOAD TSFILE command."); | ||
| } | ||
| } | ||
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| private static final String DATABASE_LEVEL_KEY = "database-level"; | ||
| private static final int DATABASE_LEVEL_DEFAULT_VALUE = | ||
| IoTDBDescriptor.getInstance().getConfig().getDefaultStorageGroupLevel(); | ||
| private static final int DATABASE_LEVEL_MIN_VALUE = 1; | ||
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| public static void validateDatabaseLevelParam(final String databaseLevel) { | ||
| try { | ||
| int level = Integer.parseInt(databaseLevel); | ||
| if (level < DATABASE_LEVEL_MIN_VALUE) { | ||
| throw new SemanticException( | ||
| String.format( | ||
| "Given database level %d is less than the minimum value %d, please input a valid database level.", | ||
| level, DATABASE_LEVEL_MIN_VALUE)); | ||
| } | ||
| } catch (Exception e) { | ||
| throw new SemanticException( | ||
| String.format( | ||
| "Given database level %s is not a valid integer, please input a valid database level.", | ||
| databaseLevel)); | ||
| } | ||
| } | ||
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| public static int parseOrGetDefaultDatabaseLevel(final Map<String, String> loadAttributes) { | ||
| return Integer.parseInt( | ||
| loadAttributes.getOrDefault( | ||
| DATABASE_LEVEL_KEY, String.valueOf(DATABASE_LEVEL_DEFAULT_VALUE))); | ||
| } | ||
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| private static final String ON_SUCCESS_KEY = "on-success"; | ||
| private static final String ON_SUCCESS_DELETE_VALUE = "delete"; | ||
| private static final String ON_SUCCESS_NONE_VALUE = "none"; | ||
| private static final Set<String> ON_SUCCESS_VALUE_SET = | ||
| Collections.unmodifiableSet( | ||
| new HashSet<>(Arrays.asList(ON_SUCCESS_DELETE_VALUE, ON_SUCCESS_NONE_VALUE))); | ||
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| public static void validateOnSuccessParam(final String onSuccess) { | ||
| if (!ON_SUCCESS_VALUE_SET.contains(onSuccess)) { | ||
| throw new SemanticException( | ||
| String.format( | ||
| "Given on-success value '%s' is not supported, please input a valid on-success value.", | ||
| onSuccess)); | ||
| } | ||
| } | ||
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| public static boolean parseOrGetDefaultOnSuccess(final Map<String, String> loadAttributes) { | ||
| final String value = loadAttributes.get(ON_SUCCESS_KEY); | ||
| return StringUtils.isEmpty(value) || ON_SUCCESS_DELETE_VALUE.equals(value); | ||
| } | ||
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| private LoadTsFileConfigurator() { | ||
| throw new IllegalStateException("Utility class"); | ||
| } | ||
| } |