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1
9 package org.picocontainer.gems.util;
10
11 import org.picocontainer.ComponentAdapter;
12 import org.picocontainer.MutablePicoContainer;
13 import org.picocontainer.defaults.DefaultPicoContainer;
14 import org.picocontainer.defaults.InstanceComponentAdapter;
15
16 import java.util.Collection  ;
17 import java.util.Collections ;
18 import java.util.HashSet ;
19 import java.util.Iterator ;
20 import java.util.Map ;
21 import java.util.Set ;
22
23
24 public class PicoMap implements Map {
25
26 private final MutablePicoContainer mutablePicoContainer;
27
28 public PicoMap(MutablePicoContainer mutablePicoContainer) {
29 this.mutablePicoContainer = mutablePicoContainer;
30 }
31
32 public PicoMap() {
33 mutablePicoContainer = new DefaultPicoContainer();
34 }
35
36 public int size() {
37 return mutablePicoContainer.getComponentAdapters().size();
38 }
39
40 public boolean isEmpty() {
41 return mutablePicoContainer.getComponentAdapters().size() == 0;
42 }
43
44 public boolean containsKey(Object o) {
45 if (o instanceof Class ) {
46 return mutablePicoContainer.getComponentInstanceOfType((Class )o) != null;
47 } else {
48 return mutablePicoContainer.getComponentInstance(o) != null;
49 }
50 }
51
52 public boolean containsValue(Object o) {
53 return false;
54 }
55
56 public Object get(Object o) {
57 if (o instanceof Class ) {
58 return mutablePicoContainer.getComponentInstanceOfType((Class )o);
59 } else {
60 return mutablePicoContainer.getComponentInstance(o);
61 }
62 }
63
64 public Object put(Object o, Object o1) {
65 Object object = remove(o);
66 if (o1 instanceof Class ) {
67 mutablePicoContainer.registerComponentImplementation(o, (Class )o1);
68 } else {
69 mutablePicoContainer.registerComponentInstance(o, o1);
70 }
71 return object;
72 }
73
74 public Object remove(Object o) {
75 ComponentAdapter adapter = mutablePicoContainer.unregisterComponent(o);
76 if (adapter != null) {
77 return adapter instanceof InstanceComponentAdapter ? adapter
79 .getComponentInstance(mutablePicoContainer) : adapter
80 .getComponentImplementation();
81 } else {
82 return null;
83 }
84 }
85
86 public void putAll(Map map) {
87 for (final Iterator iter = map.entrySet().iterator(); iter.hasNext();) {
88 final Map.Entry entry = (Map.Entry )iter.next();
89 put(entry.getKey(), entry.getValue());
90 }
91 }
92
93 public void clear() {
94 Set adapters = keySet();
95 for (final Iterator iter = adapters.iterator(); iter.hasNext();) {
96 mutablePicoContainer.unregisterComponent(iter.next());
97 }
98 }
99
100 public Set keySet() {
101 Set set = new HashSet ();
102 Collection adapters = mutablePicoContainer.getComponentAdapters();
103 for (final Iterator iter = adapters.iterator(); iter.hasNext();) {
104 final ComponentAdapter adapter = (ComponentAdapter)iter.next();
105 set.add(adapter.getComponentKey());
106 }
107 return Collections.unmodifiableSet(set);
108 }
109
110 public Collection values() {
111 return Collections.unmodifiableCollection(mutablePicoContainer.getComponentInstances());
112 }
113
114 public Set entrySet() {
115 Set set = new HashSet ();
116 Collection adapters = mutablePicoContainer.getComponentAdapters();
117 for (final Iterator iter = adapters.iterator(); iter.hasNext();) {
118 final Object key = ((ComponentAdapter)iter.next()).getComponentKey();
119 final Object component = mutablePicoContainer.getComponentInstance(key);
120 set.add(new Map.Entry () {
121 public Object getKey() {
122 return key;
123 }
124
125 public Object getValue() {
126 return component;
127 }
128
129 public Object setValue(Object value) {
130 throw new UnsupportedOperationException ("Cannot set component");
131 }
132 });
133 }
134 return Collections.unmodifiableSet(set);
135 }
136 }
137 |
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