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1
23
24 package protoactive;
25
26 import org.objectweb.fractal.api.Component;
27 import org.objectweb.fractal.api.NoSuchInterfaceException;
28 import org.objectweb.fractal.api.control.BindingController;
29 import org.objectweb.fractal.api.type.ComponentType;
30 import org.objectweb.fractal.api.type.InterfaceType;
31 import org.objectweb.fractal.api.type.TypeFactory;
32
33 import org.objectweb.fractal.util.Fractal;
34
35
36 public class BinaryTreeImpl implements BinaryTree, BindingController {
37
38 private int key;
39 private Value value;
40
41 private BinaryTree leftTree;
42 private BinaryTree rightTree;
43
44 private static ComponentType TYPE;
45
46
48 public Value get (int key) {
49 if (leftTree == null && rightTree == null) {
50 return null;
51 }
52 if (key == this.key) {
53 return value;
54 } else if (key < this.key) {
55 return leftTree.get(key);
56 } else {
57 return rightTree.get(key);
58 }
59 }
60
61 public void put (int key, Object  value) {
62 if (leftTree == null && rightTree == null) {
63 this.key = key;
64 this.value = new ValueImpl(value);
65
66 Component leftComp =
67 ProtoActive.createActive(getType(), "protoactive.BinaryTreeImpl");
68 Component rightComp =
69 ProtoActive.createActive(getType(), "protoactive.BinaryTreeImpl");
70
71 try {
72 leftTree = (BinaryTree)leftComp.getFcInterface("server");
73 rightTree = (BinaryTree)rightComp.getFcInterface("server");
74 } catch (NoSuchInterfaceException e) {
75 e.printStackTrace();
76 System.exit(0);
77 }
78 }
79 if (key == this.key) {
80 this.value = new ValueImpl(value);
81 } else if (key < this.key) {
82 leftTree.put(key, value);
83 } else {
84 rightTree.put(key, value);
85 }
86 }
87
88
90 public String [] listFc () {
91 return new String [] { "left", "right" };
92 }
93
94 public Object lookupFc (String clientItfName) {
95 if (clientItfName.equals("left")) {
96 return leftTree;
97 } else if (clientItfName.equals("right")) {
98 return rightTree;
99 }
100 return null;
101 }
102
103 public void bindFc (String clientItfName, Object serverItf) {
104 if (clientItfName.equals("left")) {
105 leftTree = (BinaryTree)serverItf;
106 } else if (clientItfName.equals("right")) {
107 rightTree = (BinaryTree)serverItf;
108 }
109 }
110
111 public void unbindFc (String clientItfName) {
112 if (clientItfName.equals("left")) {
113 leftTree = null;
114 } else if (clientItfName.equals("right")) {
115 rightTree = null;
116 }
117 }
118
119
121 static ComponentType getType () {
122 if (TYPE == null) {
123 try {
124 Component boot = Fractal.getBootstrapComponent();
125 TypeFactory tf = Fractal.getTypeFactory(boot);
126 TYPE = tf.createFcType(new InterfaceType[] {
127 tf.createFcItfType("server", "protoactive.BinaryTree", false, false, false),
128 tf.createFcItfType("left", "protoactive.BinaryTree", true, false, false),
129 tf.createFcItfType("right", "protoactive.BinaryTree", true, false, false)
130 });
131 } catch (Exception e) {
132 e.printStackTrace();
133 System.exit(0);
134 }
135 }
136 return TYPE;
137 }
138
139 static class ValueImpl implements Value {
140
141 private Object value;
142
143 public ValueImpl (final Object value) {
144 this.value = value;
145 }
146
147 public String toString () {
148 return value.toString();
149 }
150 }
151 }
152 |
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