| /* |
| * 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.pig.impl.util; |
| |
| import java.util.Properties; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| public class ConfigurationValidator { |
| |
| private final static Log log = LogFactory.getLog(PropertiesUtil.class); |
| /*** |
| * All pig configurations should be validated in here before use |
| * @param properties |
| */ |
| |
| public static void validatePigProperties(Properties properties) { |
| ensureLongType(properties, "pig.spill.size.threshold", 5000000L) ; |
| ensureLongType(properties, "pig.spill.gc.activation.size", 40000000L) ; |
| } |
| |
| /** |
| * Validate properties which need to be validated and return *ONLY* those |
| * @param properties The Properties object containing all PIG properties |
| * @return The properties object containing *ONLY* properties which were validated |
| * (Typically these are user editable properties and should match the properties |
| * validated in ValidatePigProperties(Properties properties)) |
| */ |
| public static Properties getValidatedProperties(Properties properties) { |
| Properties result = new Properties(); |
| String[] propertiesToValidate = { "pig.spill.size.threshold", "pig.spill.gc.activation.size" }; |
| |
| // validate the incoming properties |
| validatePigProperties(properties); |
| |
| // return only properties that we validated |
| for (String p : propertiesToValidate) { |
| result.setProperty(p, properties.getProperty(p)); |
| } |
| return result; |
| } |
| |
| private static void ensureLongType(Properties properties, |
| String key, |
| long defaultValue) { |
| String str = properties.getProperty(key) ; |
| if (str != null) { |
| try { |
| Long.parseLong(str) ; |
| } |
| catch (NumberFormatException nfe) { |
| log.error(str + " has to be parsable to long") ; |
| properties.setProperty(key, Long.toString(defaultValue)) ; |
| } |
| } |
| else { |
| properties.setProperty(key, Long.toString(defaultValue)) ; |
| } |
| } |
| } |