/*
* Forge Mod Loader
* Copyright (c) 2012-2013 cpw.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Lesser Public License v2.1
* which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
* Contributors:
* cpw - implementation
*/
package cpw.mods.fml.common.versioning;
import java.util.List;
import org.apache.logging.log4j.Level;
import com.google.common.base.Splitter;
import com.google.common.base.Strings;
import com.google.common.collect.Lists;
import cpw.mods.fml.common.FMLLog;
import cpw.mods.fml.common.LoaderException;
/**
* Parses version strings according to the specification here:
* http://docs.codehaus.org/display/MAVEN/Versioning
* and allows for comparison of versions based on that document.
* Bounded version specifications are defined as
* http://maven.apache.org/plugins/maven-enforcer-plugin/rules/versionRanges.html
*
* Borrows heavily from maven version range management code
*
* @author cpw
*
*/
public class VersionParser
{
private static final Splitter SEPARATOR = Splitter.on('@').omitEmptyStrings().trimResults();
public static ArtifactVersion parseVersionReference(String labelledRef)
{
if (Strings.isNullOrEmpty(labelledRef))
{
throw new RuntimeException(String.format("Empty reference %s", labelledRef));
}
List<String> parts = Lists.newArrayList(SEPARATOR.split(labelledRef));
if (parts.size()>2)
{
throw new RuntimeException(String.format("Invalid versioned reference %s", labelledRef));
}
if (parts.size()==1)
{
return new DefaultArtifactVersion(parts.get(0), true);
}
return new DefaultArtifactVersion(parts.get(0),parseRange(parts.get(1)));
}
public static boolean satisfies(ArtifactVersion target, ArtifactVersion source)
{
return target.containsVersion(source);
}
public static VersionRange parseRange(String range)
{
try
{
return VersionRange.createFromVersionSpec(range);
}
catch (InvalidVersionSpecificationException e)
{
FMLLog.log(Level.ERROR, e, "Unable to parse a version range specification successfully %s", range);
throw new LoaderException(e);
}
}
}