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/*****************************************************************************
* Copyright (c) 2008 CEA LIST.
*
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Chokri Mraidha (CEA LIST) Chokri.Mraidha@cea.fr - Initial API and implementation
* Patrick Tessier (CEA LIST) Patrick.Tessier@cea.fr - modification
*
*****************************************************************************/
package org.eclipse.papyrus.profile.definition;
import java.util.NoSuchElementException;
import java.util.StringTokenizer;
/**
* Representation of the version number for a profile
*/
public class Version {
/** major version number */
protected int major;
/** minor version number */
protected int minor;
/** micro version number */
protected int micro;
/** separator for the version string */
private final static String SEPARATOR = ".";
/** The empty version "0.0.0". Equivalent to calling <code>new Version(0,0,0)</code> */
public static final Version emptyVersion = new Version(0, 0, 0);
/**
* Creates a new Version
*
* @param major
* the major version value (should be positive)
* @param minor
* the minor version value (should be positive)
* @param micro
* the micro version value (should be positive)
*/
public Version(int major, int minor, int micro) {
this.major = major;
this.minor = minor;
this.micro = micro;
}
/**
* Creates a new Version, parsing a string value
*
* @param value
* the string representing the version
*/
public Version(String value) throws IllegalArgumentException {
try {
StringTokenizer st = new StringTokenizer(value, SEPARATOR, true);
major = Integer.parseInt(st.nextToken());
if(st.hasMoreTokens()) {
st.nextToken(); // consume delimiter
minor = Integer.parseInt(st.nextToken());
if(st.hasMoreTokens()) {
st.nextToken(); // consume delimiter
micro = Integer.parseInt(st.nextToken());
if(st.hasMoreTokens()) {
throw new IllegalArgumentException("invalid format");
}
}
}
} catch (NoSuchElementException e) {
throw new IllegalArgumentException("invalid format");
}
}
/**
* Returns the major version number
*
* @return The major version number
*/
public int getMajor() {
return major;
}
/**
* Returns the minor version number
*
* @return The minor version number
*/
public int getMinor() {
return minor;
}
/**
* Returns the micro version number
*
* @return The micro version number
*/
public int getMicro() {
return micro;
}
/**
* Updates the version numbers
*
* @param major
* the new major value
* @param minor
* the new minor value
* @param micro
* the new micro value
*/
public void updateVersion(int major, int minor, int micro) {
this.major = major;
this.minor = minor;
this.micro = micro;
}
// org.osgi.framework.Version
/**
* Creates a version given the specific String
*
* @param version
* the string to parse
* @return the version value corresponding to the String
*/
public static Version parseVersion(String version) throws IllegalArgumentException {
if(version == null) {
return emptyVersion;
}
version = version.trim();
if(version.length() == 0) {
return emptyVersion;
}
return new Version(version);
}
/**
* Returns the string corresponding to the version
*/
@Override
public String toString() {
return major + SEPARATOR + minor + SEPARATOR + micro;
}
}
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