Sorted members (this also give us the Javadoc 'Field Details' section in alphabetical order).
git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/lang/trunk@137348 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Gary D. Gregory
parent
4a6b9f65d0
commit
7722d187fc
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@ -66,21 +66,10 @@ package org.apache.commons.lang;
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* @author <a href="mailto:ggregory@seagullsw.com">Gary Gregory</a>
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* @author Michael Becke
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* @since 1.0
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* @version $Id: SystemUtils.java,v 1.13 2003/05/30 01:12:26 ggregory Exp $
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* @version $Id: SystemUtils.java,v 1.14 2003/05/30 01:15:53 ggregory Exp $
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*/
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public class SystemUtils {
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/**
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* <p>SystemUtils instances should NOT be constructed in standard
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* programming. Instead, the class should be used as
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* <code>SystemUtils.FILE_SEPARATOR</code>.</p>
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*
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* <p>This constructor is public to permit tools that require a JavaBean
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* instance to operate.</p>
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*/
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public SystemUtils() {
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}
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//-----------------------------------------------------------------------
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/**
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* The <code>file.encoding</code> System Property.
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@ -104,6 +93,164 @@ public class SystemUtils {
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*/
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public static final String FILE_SEPARATOR = getSystemProperty("file.separator");
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//-----------------------------------------------------------------------
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/**
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* Is <code>true</code> if this is Java version 1.1 (also 1.1.x versions).
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* <p>
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* The field will return false if <code>JAVA_VERSION</code> is <code>null</code>.
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*/
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public static final boolean IS_JAVA_1_1 = getJavaVersionMatches("1.1");
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/**
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* Is <code>true</code> if this is Java version 1.2 (also 1.2.x versions).
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* <p>
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* The field will return false if <code>JAVA_VERSION</code> is <code>null</code>.
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*/
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public static final boolean IS_JAVA_1_2 = getJavaVersionMatches("1.2");
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/**
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* Is <code>true</code> if this is Java version 1.3 (also 1.3.x versions).
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* <p>
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* The field will return false if <code>JAVA_VERSION</code> is <code>null</code>.
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*/
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public static final boolean IS_JAVA_1_3 = getJavaVersionMatches("1.3");
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/**
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* Is <code>true</code> if this is Java version 1.4 (also 1.4.x versions).
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* <p>
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* The field will return false if <code>JAVA_VERSION</code> is <code>null</code>.
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*/
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public static final boolean IS_JAVA_1_4 = getJavaVersionMatches("1.4");
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/**
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* Is <code>true</code> if this is Java version 1.5 (also 1.5.x versions).
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* <p>
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* The field will return false if <code>JAVA_VERSION</code> is <code>null</code>.
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*/
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public static final boolean IS_JAVA_1_5 = getJavaVersionMatches("1.5");
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/**
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* Is <code>true</code> if this is AIX.
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* <p>
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
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*/
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public static final boolean IS_OS_AIX = getOSMatches("AIX");
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/**
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* Is <code>true</code> if this is HP-UX.
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* <p>
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
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*/
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public static final boolean IS_OS_HP_UX = getOSMatches("HP-UX");
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/**
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* Is <code>true</code> if this is Irix.
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* <p>
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
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*/
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public static final boolean IS_OS_IRIX = getOSMatches("Irix");
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/**
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* Is <code>true</code> if this is Linux.
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* <p>
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
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*/
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public static final boolean IS_OS_LINUX = getOSMatches("Linux") || getOSMatches("LINUX");
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// Windows XP returns 'Windows 2000' just for fun...
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/**
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* Is <code>true</code> if this is Mac.
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* <p>
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
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*/
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public static final boolean IS_OS_MAC = getOSMatches("Mac");
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/**
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* Is <code>true</code> if this is Mac.
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* <p>
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
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*/
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public static final boolean IS_OS_MAC_OSX = getOSMatches("Mac OS X");
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/**
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* Is <code>true</code> if this is Mac.
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* <p>
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
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*/
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public static final boolean IS_OS_OS2 = getOSMatches("OS/2");
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/**
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* Is <code>true</code> if this is Solaris.
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* <p>
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
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*/
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public static final boolean IS_OS_SOLARIS = getOSMatches("Solaris");
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/**
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* Is <code>true</code> if this is SunOS.
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* <p>
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
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*/
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public static final boolean IS_OS_SUN_OS = getOSMatches("SunOS");
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//-----------------------------------------------------------------------
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// OS names from http://www.vamphq.com/os.html
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// Selected ones included - please advise commons-dev@jakarta.apache.org
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// if you want another added or a mistake corrected
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/**
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* Is <code>true</code> if this is Windows.
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* <p>
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
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*/
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public static final boolean IS_OS_WINDOWS = getOSMatches("Windows");
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/**
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* Is <code>true</code> if this is Windows 2000.
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* <p>
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
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*/
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public static final boolean IS_OS_WINDOWS_2000 = getOSMatches("Windows", "5.0");
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/**
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* Is <code>true</code> if this is Windows 95.
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* <p>
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
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*/
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public static final boolean IS_OS_WINDOWS_95 = getOSMatches("Windows 9", "4.0");
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// JDK 1.2 running on Windows98 returns 'Windows 95', hence the above
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/**
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* Is <code>true</code> if this is Windows 98.
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* <p>
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
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*/
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public static final boolean IS_OS_WINDOWS_98 = getOSMatches("Windows 9", "4.1");
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// JDK 1.2 running on Windows98 returns 'Windows 95', hence the above
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/**
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* Is <code>true</code> if this is Windows ME.
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* <p>
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
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*/
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public static final boolean IS_OS_WINDOWS_ME = getOSMatches("Windows", "4.9");
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// JDK 1.2 running on WindowsME may return 'Windows 95', hence the above
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/**
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* Is <code>true</code> if this is Windows NT.
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* <p>
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
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*/
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public static final boolean IS_OS_WINDOWS_NT = getOSMatches("Windows NT");
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// Windows 2000 returns 'Windows 2000' but may suffer from same JDK1.2 problem
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/**
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* Is <code>true</code> if this is Windows XP.
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* <p>
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
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*/
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public static final boolean IS_OS_WINDOWS_XP = getOSMatches("Windows", "5.1");
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/**
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* The <code>java.class.path</code> System Property.
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* Java class path.
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@ -270,6 +417,31 @@ public class SystemUtils {
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*/
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public static final String JAVA_VERSION = getSystemProperty("java.version");
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//-----------------------------------------------------------------------
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/**
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* Gets the Java version as a <code>float</code>.
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* Example output:
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* <ul>
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* <li><code>1.2f</code> for JDK 1.2
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* <li><code>1.31f</code> for JDK 1.3.1
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* </ul>
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* <p>
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* The field will return zero if <code>JAVA_VERSION</code> is <code>null</code>.
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*/
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public static final float JAVA_VERSION_FLOAT = getJavaVersionAsFloat();
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/**
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* Gets the Java version as an <code>int</code>.
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* Example output:
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* <ul>
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* <li><code>120</code> for JDK 1.2
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* <li><code>131</code> for JDK 1.3.1
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* </ul>
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* <p>
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* The field will return zero if <code>JAVA_VERSION</code> is <code>null</code>.
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*/
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public static final int JAVA_VERSION_INT = getJavaVersionAsInt();
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/**
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* The <code>java.vm.info</code> System Property.
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* Java Virtual Machine implementation info.
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@ -402,6 +574,21 @@ public class SystemUtils {
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*/
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public static final String PATH_SEPARATOR = getSystemProperty("path.separator");
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/**
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* The <code>user.country</code> or <code>user.region</code> System Property.
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* User's country code, such as <code>GB</code>.
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* First in JDK version 1.2 as <code>user.region</code>.
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* Renamed to <code>user.country</code> in 1.4
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* <p>
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* Defaults to <code>null</code> if the runtime does not have
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* security access to read this property or property not specified.
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*
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* @since Java 1.2
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*/
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public static final String USER_COUNTRY =
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(getSystemProperty("user.country") == null ?
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getSystemProperty("user.region") : getSystemProperty("user.country"));
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/**
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* The <code>user.dir</code> System Property.
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* User's current working directory.
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@ -435,21 +622,6 @@ public class SystemUtils {
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*/
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public static final String USER_LANGUAGE = getSystemProperty("user.language");
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/**
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* The <code>user.country</code> or <code>user.region</code> System Property.
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* User's country code, such as <code>GB</code>.
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* First in JDK version 1.2 as <code>user.region</code>.
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* Renamed to <code>user.country</code> in 1.4
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* <p>
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* Defaults to <code>null</code> if the runtime does not have
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* security access to read this property or property not specified.
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*
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* @since Java 1.2
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*/
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public static final String USER_COUNTRY =
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(getSystemProperty("user.country") == null ?
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getSystemProperty("user.region") : getSystemProperty("user.country"));
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/**
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* The <code>user.name</code> System Property.
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* User's account name.
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@ -463,220 +635,20 @@ public class SystemUtils {
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//-----------------------------------------------------------------------
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/**
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* Is <code>true</code> if this is Java version 1.1 (also 1.1.x versions).
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* <p>
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* The field will return false if <code>JAVA_VERSION</code> is <code>null</code>.
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*/
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public static final boolean IS_JAVA_1_1 = getJavaVersionMatches("1.1");
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/**
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* Is <code>true</code> if this is Java version 1.2 (also 1.2.x versions).
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* <p>
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* The field will return false if <code>JAVA_VERSION</code> is <code>null</code>.
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*/
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public static final boolean IS_JAVA_1_2 = getJavaVersionMatches("1.2");
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/**
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* Is <code>true</code> if this is Java version 1.3 (also 1.3.x versions).
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* <p>
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* The field will return false if <code>JAVA_VERSION</code> is <code>null</code>.
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*/
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public static final boolean IS_JAVA_1_3 = getJavaVersionMatches("1.3");
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/**
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* Is <code>true</code> if this is Java version 1.4 (also 1.4.x versions).
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* <p>
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* The field will return false if <code>JAVA_VERSION</code> is <code>null</code>.
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*/
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public static final boolean IS_JAVA_1_4 = getJavaVersionMatches("1.4");
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/**
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* Is <code>true</code> if this is Java version 1.5 (also 1.5.x versions).
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* <p>
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* The field will return false if <code>JAVA_VERSION</code> is <code>null</code>.
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*/
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public static final boolean IS_JAVA_1_5 = getJavaVersionMatches("1.5");
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//-----------------------------------------------------------------------
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/**
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* Gets the Java version as a <code>float</code>.
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* Example output:
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* <p>Get the Java version number as a <code>float</code>.</p>
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*
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* <P>Example output:</p>
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* <ul>
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* <li><code>1.2f</code> for JDK 1.2
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* <li><code>1.31f</code> for JDK 1.3.1
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* </ul>
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* <p>
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* The field will return zero if <code>JAVA_VERSION</code> is <code>null</code>.
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*/
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public static final float JAVA_VERSION_FLOAT = getJavaVersionAsFloat();
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/**
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* Gets the Java version as an <code>int</code>.
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* Example output:
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* <ul>
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* <li><code>120</code> for JDK 1.2
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* <li><code>131</code> for JDK 1.3.1
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* </ul>
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* <p>
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* The field will return zero if <code>JAVA_VERSION</code> is <code>null</code>.
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*/
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public static final int JAVA_VERSION_INT = getJavaVersionAsInt();
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//-----------------------------------------------------------------------
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// OS names from http://www.vamphq.com/os.html
|
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// Selected ones included - please advise commons-dev@jakarta.apache.org
|
||||
// if you want another added or a mistake corrected
|
||||
|
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/**
|
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* Is <code>true</code> if this is Windows.
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* <p>
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
|
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*/
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public static final boolean IS_OS_WINDOWS = getOSMatches("Windows");
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/**
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* Is <code>true</code> if this is Windows 95.
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* <p>
|
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* The field will return false if <code>OS_NAME</code> is <code>null</code>.
|
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*/
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public static final boolean IS_OS_WINDOWS_95 = getOSMatches("Windows 9", "4.0");
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// JDK 1.2 running on Windows98 returns 'Windows 95', hence the above
|
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|
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/**
|
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* Is <code>true</code> if this is Windows 98.
|
||||
* <p>
|
||||
* The field will return false if <code>OS_NAME</code> is <code>null</code>.
|
||||
*/
|
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public static final boolean IS_OS_WINDOWS_98 = getOSMatches("Windows 9", "4.1");
|
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// JDK 1.2 running on Windows98 returns 'Windows 95', hence the above
|
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||||
/**
|
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* Is <code>true</code> if this is Windows ME.
|
||||
* <p>
|
||||
* The field will return false if <code>OS_NAME</code> is <code>null</code>.
|
||||
*/
|
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public static final boolean IS_OS_WINDOWS_ME = getOSMatches("Windows", "4.9");
|
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// JDK 1.2 running on WindowsME may return 'Windows 95', hence the above
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/**
|
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* Is <code>true</code> if this is Windows NT.
|
||||
* <p>
|
||||
* The field will return false if <code>OS_NAME</code> is <code>null</code>.
|
||||
*/
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public static final boolean IS_OS_WINDOWS_NT = getOSMatches("Windows NT");
|
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|
||||
/**
|
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* Is <code>true</code> if this is Windows 2000.
|
||||
* <p>
|
||||
* The field will return false if <code>OS_NAME</code> is <code>null</code>.
|
||||
*/
|
||||
public static final boolean IS_OS_WINDOWS_2000 = getOSMatches("Windows", "5.0");
|
||||
// Windows 2000 returns 'Windows 2000' but may suffer from same JDK1.2 problem
|
||||
|
||||
/**
|
||||
* Is <code>true</code> if this is Windows XP.
|
||||
* <p>
|
||||
* The field will return false if <code>OS_NAME</code> is <code>null</code>.
|
||||
*/
|
||||
public static final boolean IS_OS_WINDOWS_XP = getOSMatches("Windows", "5.1");
|
||||
// Windows XP returns 'Windows 2000' just for fun...
|
||||
|
||||
/**
|
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* Is <code>true</code> if this is Mac.
|
||||
* <p>
|
||||
* The field will return false if <code>OS_NAME</code> is <code>null</code>.
|
||||
*/
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public static final boolean IS_OS_MAC = getOSMatches("Mac");
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|
||||
/**
|
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* Is <code>true</code> if this is Mac.
|
||||
* <p>
|
||||
* The field will return false if <code>OS_NAME</code> is <code>null</code>.
|
||||
*/
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||||
public static final boolean IS_OS_MAC_OSX = getOSMatches("Mac OS X");
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|
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/**
|
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* Is <code>true</code> if this is Linux.
|
||||
* <p>
|
||||
* The field will return false if <code>OS_NAME</code> is <code>null</code>.
|
||||
*/
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||||
public static final boolean IS_OS_LINUX = getOSMatches("Linux") || getOSMatches("LINUX");
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||||
|
||||
/**
|
||||
* Is <code>true</code> if this is Mac.
|
||||
* <p>
|
||||
* The field will return false if <code>OS_NAME</code> is <code>null</code>.
|
||||
*/
|
||||
public static final boolean IS_OS_OS2 = getOSMatches("OS/2");
|
||||
|
||||
/**
|
||||
* Is <code>true</code> if this is Solaris.
|
||||
* <p>
|
||||
* The field will return false if <code>OS_NAME</code> is <code>null</code>.
|
||||
*/
|
||||
public static final boolean IS_OS_SOLARIS = getOSMatches("Solaris");
|
||||
|
||||
/**
|
||||
* Is <code>true</code> if this is SunOS.
|
||||
* <p>
|
||||
* The field will return false if <code>OS_NAME</code> is <code>null</code>.
|
||||
*/
|
||||
public static final boolean IS_OS_SUN_OS = getOSMatches("SunOS");
|
||||
|
||||
/**
|
||||
* Is <code>true</code> if this is HP-UX.
|
||||
* <p>
|
||||
* The field will return false if <code>OS_NAME</code> is <code>null</code>.
|
||||
*/
|
||||
public static final boolean IS_OS_HP_UX = getOSMatches("HP-UX");
|
||||
|
||||
/**
|
||||
* Is <code>true</code> if this is AIX.
|
||||
* <p>
|
||||
* The field will return false if <code>OS_NAME</code> is <code>null</code>.
|
||||
*/
|
||||
public static final boolean IS_OS_AIX = getOSMatches("AIX");
|
||||
|
||||
/**
|
||||
* Is <code>true</code> if this is Irix.
|
||||
* <p>
|
||||
* The field will return false if <code>OS_NAME</code> is <code>null</code>.
|
||||
*/
|
||||
public static final boolean IS_OS_IRIX = getOSMatches("Irix");
|
||||
|
||||
//-----------------------------------------------------------------------
|
||||
/**
|
||||
* Gets a System property, defaulting to the given value if the property
|
||||
* cannot be read.
|
||||
*
|
||||
* @param property the system property name
|
||||
* @return the system property value or <code>null</code> if security problem
|
||||
* @deprecated Use {@link #JAVA_VERSION_FLOAT} instead.
|
||||
* Will be removed in Commons Lang 3.0.
|
||||
* @return the version, for example 1.31f for JDK 1.3.1
|
||||
*/
|
||||
private static String getSystemProperty(String property) {
|
||||
try {
|
||||
return System.getProperty(property);
|
||||
|
||||
} catch (SecurityException ex) {
|
||||
// we are not allowed to look at this property
|
||||
System.err.println(
|
||||
"SecurityException thrown when reading system property '" + property
|
||||
+ "' - property value will default to null"
|
||||
);
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Decides if the java version matches.
|
||||
*
|
||||
* @param versionPrefix the prefix for the java version
|
||||
* @return true if matches, or false if not or can't determine
|
||||
*/
|
||||
private static boolean getJavaVersionMatches(String versionPrefix) {
|
||||
if (JAVA_VERSION == null) {
|
||||
return false;
|
||||
}
|
||||
return JAVA_VERSION.startsWith(versionPrefix);
|
||||
public static float getJavaVersion() {
|
||||
return JAVA_VERSION_FLOAT;
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -732,6 +704,19 @@ public class SystemUtils {
|
|||
return Integer.parseInt(str);
|
||||
}
|
||||
|
||||
/**
|
||||
* Decides if the java version matches.
|
||||
*
|
||||
* @param versionPrefix the prefix for the java version
|
||||
* @return true if matches, or false if not or can't determine
|
||||
*/
|
||||
private static boolean getJavaVersionMatches(String versionPrefix) {
|
||||
if (JAVA_VERSION == null) {
|
||||
return false;
|
||||
}
|
||||
return JAVA_VERSION.startsWith(versionPrefix);
|
||||
}
|
||||
|
||||
/**
|
||||
* Decides if the operating system matches.
|
||||
*
|
||||
|
|
@ -761,20 +746,24 @@ public class SystemUtils {
|
|||
|
||||
//-----------------------------------------------------------------------
|
||||
/**
|
||||
* <p>Get the Java version number as a <code>float</code>.</p>
|
||||
* Gets a System property, defaulting to the given value if the property
|
||||
* cannot be read.
|
||||
*
|
||||
* <P>Example output:</p>
|
||||
* <ul>
|
||||
* <li><code>1.2f</code> for JDK 1.2
|
||||
* <li><code>1.31f</code> for JDK 1.3.1
|
||||
* </ul>
|
||||
*
|
||||
* @deprecated Use {@link #JAVA_VERSION_FLOAT} instead.
|
||||
* Will be removed in Commons Lang 3.0.
|
||||
* @return the version, for example 1.31f for JDK 1.3.1
|
||||
* @param property the system property name
|
||||
* @return the system property value or <code>null</code> if security problem
|
||||
*/
|
||||
public static float getJavaVersion() {
|
||||
return JAVA_VERSION_FLOAT;
|
||||
private static String getSystemProperty(String property) {
|
||||
try {
|
||||
return System.getProperty(property);
|
||||
|
||||
} catch (SecurityException ex) {
|
||||
// we are not allowed to look at this property
|
||||
System.err.println(
|
||||
"SecurityException thrown when reading system property '" + property
|
||||
+ "' - property value will default to null"
|
||||
);
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -811,4 +800,15 @@ public class SystemUtils {
|
|||
return (JAVA_VERSION_INT >= requiredVersion);
|
||||
}
|
||||
|
||||
/**
|
||||
* <p>SystemUtils instances should NOT be constructed in standard
|
||||
* programming. Instead, the class should be used as
|
||||
* <code>SystemUtils.FILE_SEPARATOR</code>.</p>
|
||||
*
|
||||
* <p>This constructor is public to permit tools that require a JavaBean
|
||||
* instance to operate.</p>
|
||||
*/
|
||||
public SystemUtils() {
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue