+ // TODO is FILE needed; if not is this enum needed, or can we
+ // use FileFormatI for PDB, MMCIF?
+ PDB("pdb", "pdb"), MMCIF("mmcif", "cif"), FILE("?", "?");
+
+ /*
+ * file extension for cached structure file; must be one that
+ * is recognised by Chimera 'open' command
+ * @see https://www.cgl.ucsf.edu/chimera/current/docs/UsersGuide/filetypes.html
+ */
+ String ext;
+
+ /*
+ * format specifier used in dbfetch request
+ * @see http://www.ebi.ac.uk/Tools/dbfetch/dbfetch/dbfetch.databases#pdb
+ */
+ String format;
+
+ private Type(String fmt, String ex)
+ {
+ format = fmt;
+ ext = ex;
+ }
+
+ public String getFormat()
+ {
+ return format;
+ }
+
+ public String getExtension()
+ {
+ return ext;
+ }
+