/*
* @(#)VersionString.java 1.6 05/11/17
*
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* -Redistribution of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* -Redistribution in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
* ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
* OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN")
* AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
* AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
* DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
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* OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE,
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*
* You acknowledge that this software is not designed, licensed or intended
* for use in the design, construction, operation or maintenance of any
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*/
package jnlp.sample.util;
import java.util.ArrayList;
import java.util.StringTokenizer;
/*
* Utility class that knows to handle version strings
* A version string is of the form:
*
* (version-id ('+'?) ' ') *
*
*/
public class VersionString {
private ArrayList _versionIds;
/** Constructs a VersionString object from string */
public VersionString(String vs) {
_versionIds = new ArrayList();
if (vs != null) {
StringTokenizer st = new StringTokenizer(vs, " ", false);
while(st.hasMoreElements()) {
// Note: The VersionID class takes care of a postfixed '+'
_versionIds.add(new VersionID(st.nextToken()));
}
}
}
/** Check if this VersionString object contains the VersionID m */
public boolean contains(VersionID m) {
for(int i = 0; i < _versionIds.size(); i++) {
VersionID vi = (VersionID)_versionIds.get(i);
boolean check = vi.match(m);
if (check) return true;
}
return false;
}
/** Check if this VersionString object contains the VersionID m, given as a string */
public boolean contains(String versionid) {
return contains(new VersionID(versionid));
}
/** Check if this VersionString object contains anything greater than m */
public boolean containsGreaterThan(VersionID m) {
for(int i = 0; i < _versionIds.size(); i++) {
VersionID vi = (VersionID)_versionIds.get(i);
boolean check = vi.isGreaterThan(m);
if (check) return true;
}
return false;
}
/** Check if this VersionString object contains anything greater than the VersionID m, given as a string */
public boolean containsGreaterThan(String versionid) {
return containsGreaterThan(new VersionID(versionid));
}
/** Check if the versionString 'vs' contains the VersionID 'vi' */
static public boolean contains(String vs, String vi) {
return (new VersionString(vs)).contains(vi);
}
/** Pretty-print object */
public String toString() {
StringBuffer sb = new StringBuffer();
for(int i = 0; i < _versionIds.size(); i++) {
sb.append(_versionIds.get(i).toString());
sb.append(' ');
}
return sb.toString();
}
}