@Override
protected FileHeader getNewHeader(FileHeader oldHeader) {
FileHeader result = new FileHeader();
FileHeader newHeader = getFileHeader();
FileHeaderTransformer transformer = getTransformer();
boolean modified = false;
// by default, reuse the old header
result.setDescription(oldHeader.getDescription());
result.setCopyrightFirstYear(oldHeader.getCopyrightFirstYear());
result.setCopyrightLastYear(oldHeader.getCopyrightLastYear());
result.setCopyrightHolder(oldHeader.getCopyrightHolder());
result.setLicense(oldHeader.getLicense());
if (isUpdateDescription() && !transformer.isDescriptionEquals(oldHeader, newHeader)) {
// can update description and it has changed
if (log.isDebugEnabled()) {
log.debug(
"description has changed from ["
+ oldHeader.getDescription()
+ "] to ["
+ newHeader.getDescription()
+ "]");
}
// description has changed, mark header to be updated
modified = true;
// use the new description
result.setDescription(newHeader.getDescription());
}
if (isUpdateCopyright() && !transformer.isCopyrightEquals(oldHeader, newHeader)) {
// can update copyright and it has changed
if (log.isDebugEnabled()) {
log.debug(
"copyright has changed from ["
+ oldHeader.getCopyright()
+ "] to ["
+ newHeader.getCopyright()
+ "]");
}
// description has changed, mark header to be updated
modified = true;
// use the new copyright
result.setCopyrightFirstYear(result.getCopyrightFirstYear());
result.setCopyrightLastYear(result.getCopyrightLastYear());
result.setCopyrightHolder(result.getCopyrightHolder());
}
if (isUpdateLicense() && !transformer.isLicenseEquals(oldHeader, newHeader)) {
// can update license and it has changed
if (log.isDebugEnabled()) {
log.debug(
"license has changed from ["
+ oldHeader.getLicense()
+ "] to ["
+ newHeader.getLicense()
+ "]");
}
// description has changed, mark header to be updated
modified = true;
// use the new license
result.setLicense(newHeader.getLicense());
}
if (!modified) {
// nothing has to be updated, so return a {@code null} result
result = null;
}
return result;
}
