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1
11
12 package org.eclipse.pde.internal.core.util;
13
14 import java.util.ArrayList  ;
15 import java.util.Collections ;
16 import java.util.HashMap ;
17 import java.util.Map ;
18
19
20
24 public class XMLComponentRegistry {
25
26 private static XMLComponentRegistry fPinstance;
27
28
31 public static final String F_NAME = "n";
33
36 public static final String F_DESCRIPTION = "d";
38
41 public static final int F_SCHEMA_COMPONENT = 2;
42
43
46 public static final int F_ELEMENT_COMPONENT = 4;
47
48
51 public static final int F_ATTRIBUTE_COMPONENT = 8;
52
53 private static ArrayList fConsumers = new ArrayList ();
54
55 private Map fSchemaComponentMap;
56
57 private Map fAttributeComponentMap;
58
59 private Map fElementComponentMap;
60
61 private XMLComponentRegistry() {
62 fSchemaComponentMap = Collections.synchronizedMap(new HashMap ());
63 fAttributeComponentMap = Collections.synchronizedMap(new HashMap ());
64 fElementComponentMap = Collections.synchronizedMap(new HashMap ());
65 }
66
67 public static XMLComponentRegistry Instance() {
68 if (fPinstance == null) {
69 fPinstance = new XMLComponentRegistry();
70 }
71 return fPinstance;
72 }
73
74 public void dispose() {
75 if (fSchemaComponentMap != null) {
76 fSchemaComponentMap.clear();
77 }
78 if (fAttributeComponentMap != null) {
79 fAttributeComponentMap.clear();
80 }
81 if (fElementComponentMap != null) {
82 fElementComponentMap.clear();
83 }
84 }
85
86 public void putDescription(String key, String value, int mapType) {
87 putValue(F_DESCRIPTION, key, value, mapType);
88 }
89
90 public void putName(String key, String value, int mapType) {
91 putValue(F_NAME, key, value, mapType);
92 }
93
94 private Map getTargetMap(int mask) {
95 Map targetMap = null;
96 if (mask == F_SCHEMA_COMPONENT) {
97 targetMap = fSchemaComponentMap;
98 } else if (mask == F_ATTRIBUTE_COMPONENT) {
99 targetMap = fAttributeComponentMap;
100 } else if (mask == F_ELEMENT_COMPONENT) {
101 targetMap = fElementComponentMap;
102 }
103 return targetMap;
104 }
105
106 private void putValue(String valueKey, String key, String value, int mapType) {
107 if (key != null) {
108 Map targetMap = getTargetMap(mapType);
109 if (targetMap == null) {
110 return;
111 }
112 HashMap previousValue = (HashMap )targetMap.get(key);
113 if (previousValue == null) {
114 HashMap newValue = new HashMap ();
115 newValue.put(valueKey, value);
116 targetMap.put(key, newValue);
117 } else {
118 previousValue.put(valueKey, value);
119 }
120 }
121 }
122
123 public void put(String key, HashMap value, int mapType) {
124 if (key != null) {
125 Map targetMap = getTargetMap(mapType);
126 if (targetMap == null) {
127 return;
128 }
129 targetMap.put(key, value);
130 }
131 }
132
133 public HashMap get(String key, int mapType) {
134 Map targetMap = getTargetMap(mapType);
135 if (targetMap == null) {
136 return null;
137 }
138 return (HashMap )targetMap.get(key);
139 }
140
141 private String getValue(String valueKey, String key, int mapType) {
142 if (key != null) {
143 HashMap map = get(key, mapType);
144 if (map != null) {
145 return (String )map.get(valueKey);
146 }
147 }
148 return null;
149 }
150
151 public String getDescription(String key, int mapType) {
152 return getValue(F_DESCRIPTION, key, mapType);
153 }
154
155 public String getName(String key, int mapType) {
156 return getValue(F_NAME, key, mapType);
157 }
158
159 public void connect(Object consumer) {
160 if (!fConsumers.contains(consumer)) {
161 fConsumers.add(consumer);
162 }
163 }
164
165 public void disconnect(Object consumer) {
166 fConsumers.remove(consumer);
167 if (fConsumers.size() == 0) {
168 dispose();
169 }
170 }
171
172 }
173 |
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