/**
* Initialize a description by pack name and repository.
*
* <p>The corresponding index file is assumed to exist. If this is not true implementors must
* extend the class and override {@link #getFileName(PackExt)}.
*
* <p>Callers should also try to fill in other fields if they are reasonably free to access at the
* time this instance is being initialized.
*
* @param name name of the pack file. Must end with ".pack".
* @param repoDesc description of the repo containing the pack file.
*/
public DfsPackDescription(DfsRepositoryDescription repoDesc, String name) {
this.repoDesc = repoDesc;
int dot = name.lastIndexOf('.');
this.packName = (dot < 0) ? name : name.substring(0, dot);
this.sizeMap = new HashMap<PackExt, Long>(PackExt.values().length * 2);
}
/**
* @param ext the file extension
* @return whether the pack file extensions is known to exist.
*/
public boolean hasFileExt(PackExt ext) {
return (extensions & ext.getBit()) != 0;
}
/**
* @param ext the file extension
* @return name of the file.
*/
public String getFileName(PackExt ext) {
return packName + '.' + ext.getExtension();
}
/**
* Adds the pack file extension to the known list.
*
* @param ext the file extension
*/
public void addFileExt(PackExt ext) {
extensions |= ext.getBit();
}