/* * Copyright (c) 2005, 2009, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. *//* ******************************************************************************* * (C) Copyright IBM Corp. and others, 1996-2009 - All Rights Reserved * * * * The original version of this source code and documentation is copyrighted * * and owned by IBM, These materials are provided under terms of a License * * Agreement between IBM and Sun. This technology is protected by multiple * * US and International patents. This notice and attribution to IBM may not * * to removed. * ******************************************************************************* */package sun.text.normalizer;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 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 = Integer.valueOf(version); Object result = MAP_.get(key); if (result == null) { result = new VersionInfo(version); MAP_.put(key, result); } return (VersionInfo)result; } /** * 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(); /** * Error statement string */ private static final String INVALID_VERSION_NUMBER_ = "Invalid version number: Version number may be negative or greater than 255"; // 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; }}
/*
* Copyright (c) 2005, 2009, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
*******************************************************************************
* (C) Copyright IBM Corp. and others, 1996-2009 - All Rights Reserved *
* *
* The original version of this source code and documentation is copyrighted *
* and owned by IBM, These materials are provided under terms of a License *
* Agreement between IBM and Sun. This technology is protected by multiple *
* US and International patents. This notice and attribution to IBM may not *
* to removed. *
*******************************************************************************
*/
package sun.text.normalizer;
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 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 = Integer.valueOf(version);
Object result = MAP_.get(key);
if (result == null) {
result = new VersionInfo(version);
MAP_.put(key, result);
}
return (VersionInfo)result;
}
/**
* 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();
/**
* Error statement string
*/
private static final String INVALID_VERSION_NUMBER_ =
"Invalid version number: Version number may be negative or greater than 255";
// 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;
}
}