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Posted to dev@commons.apache.org by sc...@apache.org on 2002/08/23 00:11:25 UTC
cvs commit: jakarta-commons/lang/src/java/org/apache/commons/lang SystemUtils.java
scolebourne 2002/08/22 15:11:25
Added: lang/src/java/org/apache/commons/lang SystemUtils.java
Log:
Initial version of SystemUtils for system constants
Revision Changes Path
1.1 jakarta-commons/lang/src/java/org/apache/commons/lang/SystemUtils.java
Index: SystemUtils.java
===================================================================
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
* <http://www.apache.org/>.
*/
/**
* Common <code>System</code> class helpers.
*
* @author Based on code from Avalon Excalibur
* @author Based on code from Lucene
* @author <a href="mailto:scolebourne@apache.org">Stephen Colebourne</a>
* @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;
}
}
}
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