diff --git a/src/java/org/apache/commons/lang/SystemUtils.java b/src/java/org/apache/commons/lang/SystemUtils.java new file mode 100644 index 000000000..f865407dd --- /dev/null +++ b/src/java/org/apache/commons/lang/SystemUtils.java @@ -0,0 +1,203 @@ +package org.apache.commons.lang; + +/* ==================================================================== + * The Apache Software License, Version 1.1 + * + * Copyright (c) 2002 The Apache Software Foundation. All rights + * reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The end-user documentation included with the redistribution, if + * any, must include the following acknowlegement: + * "This product includes software developed by the + * Apache Software Foundation (http://www.apache.org/)." + * Alternately, this acknowlegement may appear in the software itself, + * if and wherever such third-party acknowlegements normally appear. + * + * 4. The names "The Jakarta Project", "Commons", and "Apache Software + * Foundation" must not be used to endorse or promote products derived + * from this software without prior written permission. For written + * permission, please contact apache@apache.org. + * + * 5. Products derived from this software may not be called "Apache" + * nor may "Apache" appear in their names without prior written + * permission of the Apache Software Foundation. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * ==================================================================== + * + * This software consists of voluntary contributions made by many + * individuals on behalf of the Apache Software Foundation. For more + * information on the Apache Software Foundation, please see + * . + */ + +/** + * Common System class helpers. + * + * @author Based on code from Avalon Excalibur + * @author Based on code from Lucene + * @author Stephen Colebourne + * @version $Id: SystemUtils.java,v 1.1 2002/08/22 22:11:25 scolebourne Exp $ + */ +public class SystemUtils { + + /** + * Prevent construction of SystemUtils instances + */ + private SystemUtils() { + } + + /** The line separator string from System.getProperty() */ + public static final String LINE_SEPARATOR = System.getProperty("line.separator"); + /** The path separator string from System.getProperty() */ + public static final String PATH_SEPARATOR = System.getProperty("path.separator"); + /** The file separator string from System.getProperty() */ + public static final String FILE_SEPARATOR = System.getProperty("file.separator"); + + /** The working (user) directory string from System.getProperty() */ + public static final String USER_WORKING_DIRECTORY = System.getProperty("user.dir"); + /** The user home directory string from System.getProperty() */ + public static final String USER_HOME_DIRECTORY = System.getProperty("user.home"); + /** The user account name string from System.getProperty() */ + public static final String USER_NAME = System.getProperty("user.name"); + + /** The os name string from System.getProperty() */ + public static final String OS_NAME = System.getProperty("os.name"); + /** The os architecture string from System.getProperty() */ + public static final String OS_ARCHITECTURE = System.getProperty("os.arch"); + /** The os version string from System.getProperty() */ + public static final String OS_VERSION = System.getProperty("os.version"); + /** True iff this is running on Windows */ + public static final boolean IS_WINDOWS; + /** True iff this is running on Unix */ + public static final boolean IS_UNIX; + /** True iff this is running on Mac */ + public static final boolean IS_MAC; + /** True iff this is running on OS2 */ + public static final boolean IS_OS2; + /** True iff this is running on Linux */ + public static final boolean IS_LINUX; + + /** The Java vendor string from System.getProperty() */ + public static final String JAVA_VENDOR = System.getProperty("java.vendor"); + /** The Java vendor url string from System.getProperty() */ + public static final String JAVA_VENDOR_URL = System.getProperty("java.vendor.url"); + /** The Java installation directory string from System.getProperty() */ + public static final String JAVA_HOME = System.getProperty("java.home"); + /** The Java class version number string from System.getProperty() */ + public static final String JAVA_CLASS_VERSION = System.getProperty("java.class.version"); + /** The Java classpath string from System.getProperty() */ + public static final String JAVA_CLASS_PATH = System.getProperty("java.class.path"); + + /** The Java version string from System.getProperty() */ + public static final String JAVA_VERSION = System.getProperty("java.version"); + /** True iff this is Java version 1.1. */ + public static final boolean IS_JAVA_1_1 = JAVA_VERSION.startsWith("1.1."); + /** True iff this is Java version 1.2. */ + public static final boolean IS_JAVA_1_2 = JAVA_VERSION.startsWith("1.2."); + /** True iff this is Java version 1.3. */ + public static final boolean IS_JAVA_1_3 = JAVA_VERSION.startsWith("1.3."); + /** True iff this is Java version 1.4. */ + public static final boolean IS_JAVA_1_4 = JAVA_VERSION.startsWith("1.4."); + /** True iff this is Java version 1.3. */ + public static final boolean IS_JAVA_1_5 = JAVA_VERSION.startsWith("1.5."); + + /* + * The JLS doesn't seem to specify an exact naming convention for the + * os.name. We ensure a uniform naming here. + */ + static { + // from http://www.geocities.com/vamp201/os.html + if (OS_NAME.startsWith("Windows")) { + IS_WINDOWS = true; + IS_UNIX = false; + IS_MAC = false; + IS_OS2 = false; + IS_LINUX = false; + } else if (OS_NAME.startsWith("SunOS")) { + IS_WINDOWS = false; + IS_UNIX = true; + IS_MAC = false; + IS_OS2 = false; + IS_LINUX = false; + } else if (OS_NAME.startsWith("Solaris")) { + IS_WINDOWS = false; + IS_UNIX = true; + IS_MAC = false; + IS_OS2 = false; + IS_LINUX = false; + } else if (OS_NAME.startsWith("Linux")) { + IS_WINDOWS = false; + IS_UNIX = true; + IS_MAC = false; + IS_OS2 = false; + IS_LINUX = true; + } else if (OS_NAME.startsWith("HP-UX")) { + IS_WINDOWS = false; + IS_UNIX = true; + IS_MAC = false; + IS_OS2 = false; + IS_LINUX = false; + } else if (OS_NAME.startsWith("AIX")) { + IS_WINDOWS = false; + IS_UNIX = true; + IS_MAC = false; + IS_OS2 = false; + IS_LINUX = false; + } else if (OS_NAME.startsWith("Irix")) { + IS_WINDOWS = false; + IS_UNIX = true; + IS_MAC = false; + IS_OS2 = false; + IS_LINUX = false; + } else if (OS_NAME.startsWith("Digital Unix")) { + IS_WINDOWS = false; + IS_UNIX = true; + IS_MAC = false; + IS_OS2 = false; + IS_LINUX = false; + } else if (OS_NAME.startsWith("OS/2")) { + IS_WINDOWS = false; + IS_UNIX = false; + IS_MAC = false; + IS_OS2 = true; + IS_LINUX = false; + } else if (OS_NAME.startsWith("Mac")) { + IS_WINDOWS = false; + IS_UNIX = false; + IS_MAC = true; + IS_OS2 = false; + IS_LINUX = false; + } else { + IS_WINDOWS = false; + IS_UNIX = false; + IS_MAC = false; + IS_OS2 = false; + IS_LINUX = false; + } + } + +}