Source Code Cross Referenced for AppMap.java in  » Profiler » JAMon » com » jamonapi » utils » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Profiler » JAMon » com.jamonapi.utils 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01:        package com.jamonapi.utils;
02:
03:        /** 
04:         * Case Insensitive HashMap() - If the maps key is a string then the following keys are all considered equal:
05:         *   myKey<br>
06:         *   MYKEY<br>
07:         *   MyKey<br>
08:         *   ...
09:         * 
10:         * Other than that this class works like a regular HashMap.
11:         */
12:
13:        import java.util.*;
14:
15:        public class AppMap extends java.util.HashMap {
16:
17:            public AppMap() {
18:
19:            }
20:
21:            /** Constructs an empty HashMap with the default initial capacity (16) and the default load factor (0.75).
22:             * 
23:             */
24:
25:            public AppMap(int initialCapacity) {
26:                super (initialCapacity);
27:            }
28:
29:            /** Constructs an empty HashMap with the specified initial capacity and the default load factor (0.75). */
30:            public AppMap(int initialCapacity, float loadFactor) {
31:                super (initialCapacity, loadFactor);
32:            }
33:
34:            /** Constructs an empty HashMap with the specified initial capacity and load factor. */
35:            public AppMap(Map m) {
36:                putAll(m);
37:            }
38:
39:            public Object put(Object key, Object object) {
40:                return super .put(convertKey(key), object);
41:            }
42:
43:            public boolean containsKey(Object key) {
44:                // The normal case is done first as a performance optimization.  It seems to make checks around 30% faster
45:                // due to only converting the case of the string comparison only when required.
46:                return super .containsKey(key)
47:                        || super .containsKey(convertKey(key));
48:            }
49:
50:            public Object get(Object key) {
51:                return super .get(convertKey(key));
52:            }
53:
54:            public static Object get(Map map, Object key)
55:                    throws AppBaseException {
56:                Object object = map.get(key);
57:
58:                if (object != null)
59:                    return object;
60:                else
61:                    throw new AppBaseException(key
62:                            + " does not exist in the HashMap.");
63:            }
64:
65:            protected Object convertKey(Object key) {
66:                if (key instanceof  String && key != null)
67:                    key = key.toString().toLowerCase();
68:
69:                return key;
70:
71:            }
72:
73:            public static Map createInstance() {
74:                return new AppMap();
75:            }
76:
77:            public static void main(String[] args) {
78:                Map map = new HashMap();
79:                map.put("HeLLo", "world");
80:                System.out.println("Should return null: " + map.get("HELLO"));
81:                System.out.println("Contents of HashMap=" + map);
82:                map = new AppMap(map);
83:                System.out
84:                        .println("Should return 'world': " + map.get("HELLO"));
85:                System.out.println("Contents of AppMap=" + map);
86:            }
87:
88:        }
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