1 package org.lcsim.geometry.compact;
2
3 import java.util.HashMap;
4 import java.util.Map;
5
6 /**
7 * A map of system ID to Subdetectors, used by
8 * org.lcsim.geometry.compact.Detector.
9 *
10 * @author jeremym
11 */
12 class SystemIDMap
13 {
14 private Map<Integer, Subdetector> _subdetectors = new HashMap<Integer, Subdetector>();
15
16 /**
17 * Add an entry mapping system id to a Subdetector.
18 *
19 * @param sysid
20 * System ID which must be > 0
21 * @param subdetector
22 * Subdetector with this sysid
23 */
24 protected void add(int sysid, Subdetector subdetector)
25 {
26 if (sysid > 0)
27 {
28 if (_subdetectors.containsKey(sysid))
29 {
30 throw new RuntimeException("The System ID " + sysid + " of " + subdetector.getName()
31 + " is already used by " + _subdetectors.get(sysid).getName());
32 }
33 else
34 {
35 _subdetectors.put(sysid, subdetector);
36 }
37 }
38 // else
39 // {
40 // System.err.println("WARNING: The system id <" + sysid + "> of Subdetector <" + subdetector.getName()
41 // + "> was ignored, because it is not greater than zero.");
42 // }
43 }
44
45 /** Retrieve a Subdetector by system ID. */
46 protected Subdetector get(int sysid)
47 {
48 return _subdetectors.get(sysid);
49 }
50 }