cryptix
public class CryptixProperties extends Object
Version numbers should be written as a triple of integers, not as a decimal. If the last number is omitted it is assumed to be 0, so for example, version 1.10 is after version 1.2.
The property values are read from files called Cryptix.properties and Local.properties, which are stored in the Cryptix library directory. The Local.properties file (if it exists) adds to and overrides entries in Cryptix.properties, and is intended to be used for local customisations by a user or adminstrator.
The library directory is found by searching the current classpath. For each classpath entry, a "cryptix-lib" subdirectory is looked for. If the entry is a .zip or .jar file, "cryptix-lib" will be looked for in the same directory as that file.
Property values loaded from Cryptix.properties or Local.properties are always read-only. They can be accessed by untrusted code, so should not be secret.
Copyright © 1997
Systemics Ltd on behalf of the
Cryptix Development Team.
All rights reserved.
$Revision: 1.13 $
Since: Cryptix 2.2.2
Field Summary | |
---|---|
static String | HTML_INFO
An HTML description of the provider. |
static String | LIB_DIRNAME
The name of the directory in which the properties files and (if
applicable) native libraries are found. |
static boolean | NATIVE_ALLOWED
If this constant is false, native linking is disabled regardless of
any settings in the properties files. |
static String | PRODUCT_NAME
The common name for this class library. |
static String[] | PROPERTIES_FILES
The names of the properties files. |
Method Summary | |
---|---|
static String | getHtmlInfo()
Returns English-language HTML credits for Cryptix, in a form that
could be included in an application's About box, for example.
|
static int | getIntermediateVersion()
Returns the intermediate version of this release of Cryptix. |
static String | getLibraryPath()
Returns the path of the library directory. |
static int | getMajorVersion()
Returns the major version of this release of Cryptix. |
static int | getMinorVersion()
Returns the minor version of this release of Cryptix. |
static String | getProperty(String key)
Gets the value of a property. |
static String | getProperty(String key, String defaultValue)
Gets the value of a property, or returns defaultValue if the
property was not set. |
static String | getReleaseDate()
Returns the release date of this version of Cryptix, as a string in
the form "yyyy/mm/dd". |
static String | getVersionString()
Returns a string describing this version of Cryptix. |
static boolean | isVersionAtLeast(int major, int minor, int intermediate)
Returns true iff this version of Cryptix is at least the given
version. |
static void | list(PrintStream out)
Lists the properties to the PrintStream out. |
static void | list(PrintWriter out)
Lists the properties to the PrintWriter out. |
static void | main(String[] args)
Prints the Cryptix version string, whether Cryptix is installed correctly,
and the location of the library directory. |
static Enumeration | propertyNames()
Returns an enumeration of all the property names. |
static void | save(OutputStream os, String comment)
Saves the properties to the OutputStream os, in the format
used by java.util.Properties.save . |
The returned string does not have <HTML> or <BODY> tags, so that it can easily be included in a larger page.
The returned path is always absolute, and ends with a file separator character (e.g. "/" on Unix).
Throws: IOException if an error occurred during intialization, preventing the path from being determined.
java.util.Properties.save
. The string comment
is written as a comment in the first line of the output.