| /* |
| * 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.ode.utils; |
| |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| /** |
| * Extensions for java.lang.System |
| */ |
| |
| public class SystemUtils { |
| |
| /** |
| * @see System#getProperties() |
| */ |
| public static String javaVersion() { |
| return System.getProperty("java.version"); |
| } |
| |
| /** |
| * @see System#getProperties() |
| */ |
| public static String javaVendor() { |
| return System.getProperty("java.vendor"); |
| } |
| |
| /** |
| * @see System#getProperties() |
| */ |
| public static String javaHome() { |
| return System.getProperty("java.home"); |
| } |
| |
| /** |
| * @see System#getProperties() |
| */ |
| public static String javaClassVersion() { |
| return System.getProperty("java.class.version"); |
| } |
| |
| /** |
| * @see System#getProperties() |
| */ |
| public static String javaClassPath() { |
| return System.getProperty("java.class.path"); |
| } |
| |
| /** |
| * @see System#getProperties() |
| */ |
| public static String javaTemporaryDirectory() { |
| return System.getProperty("java.io.tmpdir"); |
| } |
| |
| /** |
| * @see System#getProperties() |
| */ |
| public static String javaLibraryPath() { |
| return System.getProperty("java.library.path"); |
| } |
| |
| /** |
| * @see System#getProperties() |
| */ |
| public static String operatingSystemArchitecture() { |
| return System.getProperty("os.arch"); |
| } |
| |
| /** |
| * @see System#getProperties() |
| */ |
| public static String operatingSystemName() { |
| return System.getProperty("os.name"); |
| } |
| |
| /** |
| * @see System#getProperties() |
| */ |
| public static String operatingSystemVersion() { |
| return System.getProperty("os.version"); |
| } |
| |
| /** |
| * @see System#getProperties() |
| */ |
| public static String fileSeparator() { |
| return System.getProperty("file.separator"); |
| } |
| |
| /** |
| * @see System#getProperties() |
| */ |
| public static String pathSeparator() { |
| return System.getProperty("path.separator"); |
| } |
| |
| /** |
| * @see System#getProperties() |
| */ |
| public static String lineSeparator() { |
| return System.getProperty("line.separator"); |
| } |
| |
| /** |
| * @see System#getProperties() |
| */ |
| public static String userName() { |
| return System.getProperty("user.name"); |
| } |
| |
| /** |
| * @see System#getProperties() |
| */ |
| public static String userHome() { |
| return System.getProperty("user.home"); |
| } |
| |
| /** |
| * @see System#getProperties() |
| */ |
| public static String userDirectory() { |
| return System.getProperty("user.dir"); |
| } |
| |
| /** |
| * Replace system property values in the given String using the ${system.property} convention. |
| * |
| * e.g., "The java version is ${java.version}" ==> "The java version is 1.5.0_11" |
| */ |
| public static String replaceSystemProperties(String str) { |
| Pattern pattern = Pattern.compile("\\$\\{[^\\}]+\\}"); |
| int start = 0; |
| while (true) { |
| Matcher match = pattern.matcher(str); |
| if (!match.find(start)) |
| break; |
| String property = str.substring(match.start() + 2, match.end() - 1); |
| String value = System.getProperty(property); |
| if (value != null) { |
| str = match.replaceFirst(Matcher.quoteReplacement(value)); |
| } else { |
| // if the system property doesn't exist, no substitution and skip to next |
| start = match.end(); |
| } |
| } |
| return str; |
| } |
| |
| } |