| /* |
| * 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.tinkerpop.gremlin.util; |
| |
| import org.apache.commons.configuration.BaseConfiguration; |
| import org.apache.commons.configuration.Configuration; |
| |
| import java.util.Map; |
| |
| /** |
| * @author Marko A. Rodriguez (http://markorodriguez.com) |
| */ |
| public final class SystemUtil { |
| |
| private SystemUtil() { |
| } |
| |
| /** |
| * Generate a {@link Configuration} from the {@link System#getProperties}. |
| * Only those properties with specified prefix key are aggregated. |
| * If the prefix and a . should be removed, then trim prefix. |
| * |
| * @param prefix the prefix of the keys to include in the configuration |
| * @param trimPrefix whether to trim the prefix + . from the key |
| * @return a configuration generated from the System properties |
| */ |
| public static Configuration getSystemPropertiesConfiguration(final String prefix, final boolean trimPrefix) { |
| final BaseConfiguration apacheConfiguration = new BaseConfiguration(); |
| apacheConfiguration.setDelimiterParsingDisabled(true); |
| for (final Map.Entry<Object, Object> entry : System.getProperties().entrySet()) { |
| final String key = entry.getKey().toString(); |
| final Object value = entry.getValue(); |
| if (key.startsWith(prefix + ".")) |
| apacheConfiguration.setProperty(trimPrefix ? key.substring(prefix.length() + 1) : key, value); |
| } |
| return apacheConfiguration; |
| } |
| } |