org.codehaus.plexus.util.Os Maven / Gradle / Ivy
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* The Apache Software License, Version 1.1
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* reserved.
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*
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* distribution.
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* 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.
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*
* 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
* validFamilies = setValidFamilies();
// get the current info
private static final String PATH_SEP = System.getProperty( "path.separator" );
public static final String OS_NAME = System.getProperty( "os.name" ).toLowerCase( Locale.US );
public static final String OS_ARCH = System.getProperty( "os.arch" ).toLowerCase( Locale.US );
public static final String OS_VERSION = System.getProperty( "os.version" ).toLowerCase( Locale.US );
// Make sure this method is called after static fields it depends on have been set!
public static final String OS_FAMILY = getOsFamily();
private String family;
private String name;
private String version;
private String arch;
/**
* Default constructor
*/
public Os()
{
}
/**
* Constructor that sets the family attribute
*
* @param family a String value
*/
public Os( String family )
{
setFamily( family );
}
/**
* Initializes the set of valid families.
*/
private static Set setValidFamilies()
{
Set valid = new HashSet();
valid.add( FAMILY_DOS );
valid.add( FAMILY_MAC );
valid.add( FAMILY_NETWARE );
valid.add( FAMILY_OS2 );
valid.add( FAMILY_TANDEM );
valid.add( FAMILY_UNIX );
valid.add( FAMILY_WINDOWS );
valid.add( FAMILY_WIN9X );
valid.add( FAMILY_ZOS );
valid.add( FAMILY_OS400 );
valid.add( FAMILY_OPENVMS );
return valid;
}
/**
* Sets the desired OS family type
*
* @param f The OS family type desired
* Possible values:
*
* - dos
* - mac
* - netware
* - os/2
* - tandem
* - unix
* - windows
* - win9x
* - z/os
* - os/400
* - openvms
*
*/
public void setFamily( String f )
{
family = f.toLowerCase( Locale.US );
}
/**
* Sets the desired OS name
*
* @param name The OS name
*/
public void setName( String name )
{
this.name = name.toLowerCase( Locale.US );
}
/**
* Sets the desired OS architecture
*
* @param arch The OS architecture
*/
public void setArch( String arch )
{
this.arch = arch.toLowerCase( Locale.US );
}
/**
* Sets the desired OS version
*
* @param version The OS version
*/
public void setVersion( String version )
{
this.version = version.toLowerCase( Locale.US );
}
/**
* Determines if the current OS matches the type of that
* set in setFamily.
*
* @see Os#setFamily(String)
*/
public boolean eval()
throws Exception
{
return isOs( family, name, arch, version );
}
/**
* Determines if the current OS matches the given OS
* family.
*
* @param family the family to check for
* @return true if the OS matches
* @since 1.0
*/
public static boolean isFamily( String family )
{
return isOs( family, null, null, null );
}
/**
* Determines if the current OS matches the given OS
* name.
*
* @param name the OS name to check for
* @return true if the OS matches
* @since 1.0
*/
public static boolean isName( String name )
{
return isOs( null, name, null, null );
}
/**
* Determines if the current OS matches the given OS
* architecture.
*
* @param arch the OS architecture to check for
* @return true if the OS matches
* @since 1.0
*/
public static boolean isArch( String arch )
{
return isOs( null, null, arch, null );
}
/**
* Determines if the current OS matches the given OS
* version.
*
* @param version the OS version to check for
* @return true if the OS matches
* @since 1.0
*/
public static boolean isVersion( String version )
{
return isOs( null, null, null, version );
}
/**
* Determines if the current OS matches the given OS
* family, name, architecture and version.
*
* The name, archictecture and version are compared to
* the System properties os.name, os.version and os.arch
* in a case-independent way.
*
* @param family The OS family
* @param name The OS name
* @param arch The OS architecture
* @param version The OS version
* @return true if the OS matches
* @since 1.0
*/
public static boolean isOs( String family, String name, String arch, String version )
{
boolean retValue = false;
if ( family != null || name != null || arch != null || version != null )
{
boolean isFamily = true;
boolean isName = true;
boolean isArch = true;
boolean isVersion = true;
if ( family != null )
{
if ( family.equalsIgnoreCase( FAMILY_WINDOWS ) )
{
isFamily = OS_NAME.contains( FAMILY_WINDOWS );
}
else if ( family.equalsIgnoreCase( FAMILY_OS2 ) )
{
isFamily = OS_NAME.contains( FAMILY_OS2 );
}
else if ( family.equalsIgnoreCase( FAMILY_NETWARE ) )
{
isFamily = OS_NAME.contains( FAMILY_NETWARE );
}
else if ( family.equalsIgnoreCase( FAMILY_DOS ) )
{
isFamily = PATH_SEP.equals( ";" ) && !isFamily( FAMILY_NETWARE );
}
else if ( family.equalsIgnoreCase( FAMILY_MAC ) )
{
isFamily = OS_NAME.contains( FAMILY_MAC );
}
else if ( family.equalsIgnoreCase( FAMILY_TANDEM ) )
{
isFamily = OS_NAME.contains( "nonstop_kernel" );
}
else if ( family.equalsIgnoreCase( FAMILY_UNIX ) )
{
isFamily = PATH_SEP.equals( ":" ) && !isFamily( FAMILY_OPENVMS )
&& ( !isFamily( FAMILY_MAC ) || OS_NAME.endsWith( "x" ) );
}
else if ( family.equalsIgnoreCase( FAMILY_WIN9X ) )
{
isFamily = isFamily( FAMILY_WINDOWS )
&& ( OS_NAME.contains( "95" ) || OS_NAME.contains( "98" )
|| OS_NAME.contains( "me" ) || OS_NAME.contains( "ce" ) );
}
else if ( family.equalsIgnoreCase( FAMILY_ZOS ) )
{
isFamily = OS_NAME.contains( FAMILY_ZOS ) || OS_NAME.contains( "os/390" );
}
else if ( family.equalsIgnoreCase( FAMILY_OS400 ) )
{
isFamily = OS_NAME.contains( FAMILY_OS400 );
}
else if ( family.equalsIgnoreCase( FAMILY_OPENVMS ) )
{
isFamily = OS_NAME.contains( FAMILY_OPENVMS );
}
else
{
isFamily = OS_NAME.contains( family.toLowerCase( Locale.US ) );
}
}
if ( name != null )
{
isName = name.toLowerCase( Locale.US ).equals( OS_NAME );
}
if ( arch != null )
{
isArch = arch.toLowerCase( Locale.US ).equals( OS_ARCH );
}
if ( version != null )
{
isVersion = version.toLowerCase( Locale.US ).equals( OS_VERSION );
}
retValue = isFamily && isName && isArch && isVersion;
}
return retValue;
}
/**
* Helper method to determine the current OS family.
*
* @return name of current OS family.
* @since 1.4.2
*/
private static String getOsFamily()
{
// in case the order of static initialization is
// wrong, get the list
// safely.
Set families = null;
if ( !validFamilies.isEmpty() )
{
families = validFamilies;
}
else
{
families = setValidFamilies();
}
for ( String fam : families )
{
if ( Os.isFamily( fam ) )
{
return fam;
}
}
return null;
}
/**
* Helper method to check if the given family is in the
* following list:
*
* - dos
* - mac
* - netware
* - os/2
* - tandem
* - unix
* - windows
* - win9x
* - z/os
* - os/400
* - openvms
*
*
* @param theFamily the family to check.
* @return true if one of the valid families.
* @since 1.4.2
*/
public static boolean isValidFamily( String theFamily )
{
return ( validFamilies.contains( theFamily ) );
}
/**
* @return a copy of the valid families
* @since 1.4.2
*/
public static Set getValidFamilies()
{
return new HashSet( validFamilies );
}
}
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