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The Adobe Experience Manager SDK
/*
*******************************************************************************
* Copyright (C) 1996-2008, International Business Machines Corporation and *
* others. All Rights Reserved. *
*******************************************************************************
*/
/*
* File: VersionInfo.java
* ************************************************************************
*
* ADOBE CONFIDENTIAL
* ___________________
*
* Copyright 2012 Adobe Systems Incorporated
* All Rights Reserved.
*
* NOTICE: All information contained herein is, and remains
* the property of Adobe Systems Incorporated and its suppliers,
* if any. The intellectual and technical concepts contained
* herein are proprietary to Adobe Systems Incorporated and its
* suppliers and are protected by trade secret or copyright law.
* Dissemination of this information or reproduction of this material
* is strictly forbidden unless prior written permission is obtained
* from Adobe Systems Incorporated.
**************************************************************************/
package com.adobe.agl.util;
import java.util.HashMap;
/**
* Class to store version numbers of the form major.minor.milli.micro.
* @author synwee
* @stable ICU 2.6
*/
public final class VersionInfo
{
// public data members -------------------------------------------------
/**
* Unicode 1.0 version
* @stable ICU 2.6
*/
public static final VersionInfo UNICODE_1_0;
/**
* Unicode 1.0.1 version
* @stable ICU 2.6
*/
public static final VersionInfo UNICODE_1_0_1;
/**
* Unicode 1.1.0 version
* @stable ICU 2.6
*/
public static final VersionInfo UNICODE_1_1_0;
/**
* Unicode 1.1.5 version
* @stable ICU 2.6
*/
public static final VersionInfo UNICODE_1_1_5;
/**
* Unicode 2.0 version
* @stable ICU 2.6
*/
public static final VersionInfo UNICODE_2_0;
/**
* Unicode 2.1.2 version
* @stable ICU 2.6
*/
public static final VersionInfo UNICODE_2_1_2;
/**
* Unicode 2.1.5 version
* @stable ICU 2.6
*/
public static final VersionInfo UNICODE_2_1_5;
/**
* Unicode 2.1.8 version
* @stable ICU 2.6
*/
public static final VersionInfo UNICODE_2_1_8;
/**
* Unicode 2.1.9 version
* @stable ICU 2.6
*/
public static final VersionInfo UNICODE_2_1_9;
/**
* Unicode 3.0 version
* @stable ICU 2.6
*/
public static final VersionInfo UNICODE_3_0;
/**
* Unicode 3.0.1 version
* @stable ICU 2.6
*/
public static final VersionInfo UNICODE_3_0_1;
/**
* Unicode 3.1.0 version
* @stable ICU 2.6
*/
public static final VersionInfo UNICODE_3_1_0;
/**
* Unicode 3.1.1 version
* @stable ICU 2.6
*/
public static final VersionInfo UNICODE_3_1_1;
/**
* Unicode 3.2 version
* @stable ICU 2.6
*/
public static final VersionInfo UNICODE_3_2;
/**
* Unicode 4.0 version
* @stable ICU 2.6
*/
public static final VersionInfo UNICODE_4_0;
/**
* Unicode 4.0.1 version
* @stable ICU 3.4
*/
public static final VersionInfo UNICODE_4_0_1;
/**
* Unicode 4.1 version
* @stable ICU 3.4
*/
public static final VersionInfo UNICODE_4_1;
/**
* Unicode 5.0 version
* @stable ICU 3.4
*/
public static final VersionInfo UNICODE_5_0;
/**
* ICU4J current release version
* @stable ICU 2.8
*/
public static final VersionInfo ICU_VERSION;
/**
* Data version string for ICU's internal data
* @internal
* @deprecated This API is ICU internal only.
*/
public static final String ICU_DATA_VERSION = "40b";
/**
* ICU4J collator runtime version
* @stable ICU 2.8
*/
public static final VersionInfo UCOL_RUNTIME_VERSION;
/**
* ICU4J collator builder version
* @stable ICU 2.8
*/
public static final VersionInfo UCOL_BUILDER_VERSION;
/**
* ICU4J collator tailorings version
* @stable ICU 2.8
*/
public static final VersionInfo UCOL_TAILORINGS_VERSION;
// public methods ------------------------------------------------------
/**
* Returns an instance of VersionInfo with the argument version.
* @param version version String in the format of "major.minor.milli.micro"
* or "major.minor.milli" or "major.minor" or "major",
* where major, minor, milli, micro are non-negative numbers
* <= 255. If the trailing version numbers are
* not specified they are taken as 0s. E.g. Version "3.1" is
* equivalent to "3.1.0.0".
* @return an instance of VersionInfo with the argument version.
* @exception throws an IllegalArgumentException when the argument version
* is not in the right format
* @stable ICU 2.6
*/
public static VersionInfo getInstance(String version)
{
int length = version.length();
int array[] = {0, 0, 0, 0};
int count = 0;
int index = 0;
while (count < 4 && index < length) {
char c = version.charAt(index);
if (c == '.') {
count ++;
}
else {
c -= '0';
if (c < 0 || c > 9) {
throw new IllegalArgumentException(INVALID_VERSION_NUMBER_);
}
array[count] *= 10;
array[count] += c;
}
index ++;
}
if (index != length) {
throw new IllegalArgumentException(
"Invalid version number: String '" + version + "' exceeds version format");
}
for (int i = 0; i < 4; i ++) {
if (array[i] < 0 || array[i] > 255) {
throw new IllegalArgumentException(INVALID_VERSION_NUMBER_);
}
}
return getInstance(array[0], array[1], array[2], array[3]);
}
/**
* Returns an instance of VersionInfo with the argument version.
* @param major major version, non-negative number <= 255.
* @param minor minor version, non-negative number <= 255.
* @param milli milli version, non-negative number <= 255.
* @param micro micro version, non-negative number <= 255.
* @exception throws an IllegalArgumentException when either arguments are
* negative or > 255
* @stable ICU 2.6
*/
public static VersionInfo getInstance(int major, int minor, int milli,
int micro)
{
// checks if it is in the hashmap
// else
if (major < 0 || major > 255 || minor < 0 || minor > 255 ||
milli < 0 || milli > 255 || micro < 0 || micro > 255) {
throw new IllegalArgumentException(INVALID_VERSION_NUMBER_);
}
int version = getInt(major, minor, milli, micro);
Integer key = new Integer(version);
Object result = MAP_.get(key);
if (result == null) {
result = new VersionInfo(version);
MAP_.put(key, result);
}
return (VersionInfo)result;
}
/**
* Returns an instance of VersionInfo with the argument version.
* Equivalent to getInstance(major, minor, milli, 0).
* @param major major version, non-negative number <= 255.
* @param minor minor version, non-negative number <= 255.
* @param milli milli version, non-negative number <= 255.
* @exception throws an IllegalArgumentException when either arguments are
* negative or > 255
* @stable ICU 2.6
*/
public static VersionInfo getInstance(int major, int minor, int milli)
{
return getInstance(major, minor, milli, 0);
}
/**
* Returns an instance of VersionInfo with the argument version.
* Equivalent to getInstance(major, minor, 0, 0).
* @param major major version, non-negative number <= 255.
* @param minor minor version, non-negative number <= 255.
* @exception throws an IllegalArgumentException when either arguments are
* negative or > 255
* @stable ICU 2.6
*/
public static VersionInfo getInstance(int major, int minor)
{
return getInstance(major, minor, 0, 0);
}
/**
* Returns an instance of VersionInfo with the argument version.
* Equivalent to getInstance(major, 0, 0, 0).
* @param major major version, non-negative number <= 255.
* @exception throws an IllegalArgumentException when either arguments are
* negative or > 255
* @stable ICU 2.6
*/
public static VersionInfo getInstance(int major)
{
return getInstance(major, 0, 0, 0);
}
private static VersionInfo javaVersion;
/**
* @internal
* @deprecated This API is ICU internal only.
*/
public static VersionInfo javaVersion() {
if (javaVersion == null) {
String s = System.getProperty("java.version");
// clean string
// preserve only digits, separated by single '.'
// ignore over 4 digit sequences
// does not test < 255, very odd...
char[] chars = s.toCharArray();
int r = 0, w = 0, count = 0;
boolean numeric = false; // ignore leading non-numerics
while (r < chars.length) {
char c = chars[r++];
if (c < '0' || c > '9') {
if (numeric) {
if (count == 3) {
// only four digit strings allowed
break;
}
numeric = false;
chars[w++] = '.';
++count;
}
} else {
numeric = true;
chars[w++] = c;
}
}
while (w > 0 && chars[w-1] == '.') {
--w;
}
String vs = new String(chars, 0, w);
javaVersion = VersionInfo.getInstance(vs);
}
return javaVersion;
}
/**
* Returns the String representative of VersionInfo in the format of
* "major.minor.milli.micro"
* @return String representative of VersionInfo
* @stable ICU 2.6
*/
public String toString()
{
StringBuffer result = new StringBuffer(7);
result.append(getMajor());
result.append('.');
result.append(getMinor());
result.append('.');
result.append(getMilli());
result.append('.');
result.append(getMicro());
return result.toString();
}
/**
* Returns the major version number
* @return the major version number
* @stable ICU 2.6
*/
public int getMajor()
{
return (m_version_ >> 24) & LAST_BYTE_MASK_ ;
}
/**
* Returns the minor version number
* @return the minor version number
* @stable ICU 2.6
*/
public int getMinor()
{
return (m_version_ >> 16) & LAST_BYTE_MASK_ ;
}
/**
* Returns the milli version number
* @return the milli version number
* @stable ICU 2.6
*/
public int getMilli()
{
return (m_version_ >> 8) & LAST_BYTE_MASK_ ;
}
/**
* Returns the micro version number
* @return the micro version number
* @stable ICU 2.6
*/
public int getMicro()
{
return m_version_ & LAST_BYTE_MASK_ ;
}
/**
* Checks if this version information is equals to the argument version
* @param other object to be compared
* @return true if other is equals to this object's version information,
* false otherwise
* @stable ICU 2.6
*/
public boolean equals(Object other)
{
return other == this;
}
/**
* Compares other with this VersionInfo.
* @param other VersionInfo to be compared
* @return 0 if the argument is a VersionInfo object that has version
* information equals to this object.
* Less than 0 if the argument is a VersionInfo object that has
* version information greater than this object.
* Greater than 0 if the argument is a VersionInfo object that
* has version information less than this object.
* @stable ICU 2.6
*/
public int compareTo(VersionInfo other)
{
return m_version_ - other.m_version_;
}
// private data members ----------------------------------------------
/**
* Version number stored as a byte for each of the major, minor, milli and
* micro numbers in the 32 bit int.
* Most significant for the major and the least significant contains the
* micro numbers.
*/
private int m_version_;
/**
* Map of singletons
*/
private static final HashMap MAP_ = new HashMap();
/**
* Last byte mask
*/
private static final int LAST_BYTE_MASK_ = 0xFF;
/**
* Error statement string
*/
private static final String INVALID_VERSION_NUMBER_ =
"Invalid version number: Version number may be negative or greater than 255";
// static declaration ------------------------------------------------
/**
* Initialize versions only after MAP_ has been created
*/
static {
UNICODE_1_0 = getInstance(1, 0, 0, 0);
UNICODE_1_0_1 = getInstance(1, 0, 1, 0);
UNICODE_1_1_0 = getInstance(1, 1, 0, 0);
UNICODE_1_1_5 = getInstance(1, 1, 5, 0);
UNICODE_2_0 = getInstance(2, 0, 0, 0);
UNICODE_2_1_2 = getInstance(2, 1, 2, 0);
UNICODE_2_1_5 = getInstance(2, 1, 5, 0);
UNICODE_2_1_8 = getInstance(2, 1, 8, 0);
UNICODE_2_1_9 = getInstance(2, 1, 9, 0);
UNICODE_3_0 = getInstance(3, 0, 0, 0);
UNICODE_3_0_1 = getInstance(3, 0, 1, 0);
UNICODE_3_1_0 = getInstance(3, 1, 0, 0);
UNICODE_3_1_1 = getInstance(3, 1, 1, 0);
UNICODE_3_2 = getInstance(3, 2, 0, 0);
UNICODE_4_0 = getInstance(4, 0, 0, 0);
UNICODE_4_0_1 = getInstance(4, 0, 1, 0);
UNICODE_4_1 = getInstance(4, 1, 0, 0);
UNICODE_5_0 = getInstance(4, 1, 0, 0);
ICU_VERSION = getInstance(4, 0, 0, 0);
UCOL_RUNTIME_VERSION = getInstance(6);
UCOL_BUILDER_VERSION = getInstance(7);
UCOL_TAILORINGS_VERSION = getInstance(1);
}
// private constructor -----------------------------------------------
/**
* Constructor with int
* @param compactversion a 32 bit int with each byte representing a number
*/
private VersionInfo(int compactversion)
{
m_version_ = compactversion;
}
/**
* Gets the int from the version numbers
* @param major non-negative version number
* @param minor non-negativeversion number
* @param milli non-negativeversion number
* @param micro non-negativeversion number
*/
private static int getInt(int major, int minor, int milli, int micro)
{
return (major << 24) | (minor << 16) | (milli << 8) | micro;
}
}
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