/**
* Add the {@code indexExtension} to the path in locator, preserving query string elements if
* present
*
* @param locator
* @param indexExtension
* @return
*/
public static String appendToPath(ResourceLocator locator, String indexExtension) {
String indexFile = locator.getURLPath() + indexExtension;
String qs = locator.getURLQueryString();
if (qs != null && qs.length() > 0) {
indexFile += "?" + qs;
}
return indexFile;
}
/**
* @param locator
* @return locator.getIndexPath() if not null, otherwise {@link #appendToPath(ResourceLocator,
* String)} where the second argument is .idx or tbi, depending on the resource
*/
public static String indexFile(ResourceLocator locator) {
if (locator.getIndexPath() != null) {
return locator.getIndexPath();
}
String indexExtension =
(locator.getURLPath().toLowerCase().endsWith(".gz")
|| locator.getPath().toLowerCase().endsWith(".bgz"))
? ".tbi"
: Tribble.STANDARD_INDEX_EXTENSION;
return appendToPath(locator, indexExtension);
}