/**
* Helper method which retrieves the next version in the history tree. This method must be used in
* reversed order. With the introduction of branches, the versions are organized in a tree
* structure. Therefore, next versions are always searched for walking up the tree.
*
* @param currentVersion current version
* @return version
* @throws InvalidVersionSpecException if the path can't be followed further
*/
public static Version findNextVersion(Version currentVersion) throws InvalidVersionSpecException {
// find next version
if (currentVersion.getPreviousVersion() != null) {
currentVersion = currentVersion.getPreviousVersion();
} else if (currentVersion.getAncestorVersion() != null) {
currentVersion = currentVersion.getAncestorVersion();
} else {
throw new InvalidVersionSpecException(Messages.VersionSubInterfaceImpl_NextVersionInvalid);
}
return currentVersion;
}
private PrimaryVersionSpec resolveDateVersionSpec(
ProjectHistory projectHistory, DateVersionSpec versionSpec) {
for (final Version version : projectHistory.getVersions()) {
final LogMessage logMessage = version.getLogMessage();
if (logMessage == null || logMessage.getDate() == null) {
continue;
}
if (versionSpec.getDate().before(logMessage.getDate())) {
final Version previousVersion = version.getPreviousVersion();
if (previousVersion == null) {
return VersioningFactory.eINSTANCE.createPrimaryVersionSpec();
}
return previousVersion.getPrimarySpec();
}
}
return projectHistory.getLastVersion().getPrimarySpec();
}