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1
23
24 package org.objectweb.fractal.adl.bindings;
25
26 import org.objectweb.fractal.adl.ADLException;
27 import org.objectweb.fractal.adl.Definition;
28 import org.objectweb.fractal.adl.AbstractLoader;
29 import org.objectweb.fractal.adl.Node;
30 import org.objectweb.fractal.adl.components.Component;
31 import org.objectweb.fractal.adl.components.ComponentContainer;
32 import org.objectweb.fractal.adl.interfaces.Interface;
33 import org.objectweb.fractal.adl.interfaces.InterfaceContainer;
34
35 import java.util.HashMap  ;
36 import java.util.HashSet ;
37 import java.util.Map ;
38 import java.util.Set ;
39
40
45
46 public class BindingLoader extends AbstractLoader {
47
48
52 public Definition load (final String name, final Map context)
53 throws ADLException
54 {
55 Definition d = clientLoader.load(name, context);
56 checkNode(d, context);
57 return d;
58 }
59
60
64 private void checkNode (final Object node, final Map context)
65 throws ADLException
66 {
67 if (node instanceof BindingContainer) {
68 Map itfMap = new HashMap ();
69 if (node instanceof InterfaceContainer) {
70 Interface[] itfs = ((InterfaceContainer)node).getInterfaces();
71 for (int i = 0; i < itfs.length; i++) {
72 Interface itf = itfs[i];
73 itfMap.put("this." + itf.getName(), itf);
74 }
75 }
76 if (node instanceof ComponentContainer) {
77 Component[] comps = ((ComponentContainer)node).getComponents();
78 for (int i = 0; i < comps.length; i++) {
79 Component comp = comps[i];
80 if (comp instanceof InterfaceContainer) {
81 Interface[] itfs = ((InterfaceContainer)comp).getInterfaces();
82 for (int j = 0; j < itfs.length; j++) {
83 Interface itf = itfs[j];
84 itfMap.put(comp.getName() + "." + itf.getName(), itf);
85 }
86 }
87 }
88 }
89 Binding[] bindings = ((BindingContainer)node).getBindings();
90 for (int i = 0; i < bindings.length; i++) {
91 Binding binding = bindings[i];
92 checkBinding(binding, itfMap, context);
93 }
94 Set fromItfs = new HashSet ();
95 for (int i = 0; i < bindings.length; i++) {
96 if (fromItfs.contains(bindings[i].getFrom())) {
97 throw new ADLException(
98 "Multiple bindings from the same interface", (Node)bindings[i]);
99 } else {
100 fromItfs.add(bindings[i].getFrom());
101 }
102 }
103 }
104 if (node instanceof ComponentContainer) {
105 Component[] comps = ((ComponentContainer)node).getComponents();
106 for (int i = 0; i < comps.length; i++) {
107 checkNode(comps[i], context);
108 }
109 }
110 }
111
112 private void checkBinding (
113 final Binding binding,
114 final Map itfs,
115 final Map context) throws ADLException
116 {
117 if (binding.getFrom() == null) {
118 throw new ADLException("'from' interface missing", (Node)binding);
119 }
120 if (binding.getTo() == null) {
121 throw new ADLException("'to' interface missing", (Node)binding);
122 }
123 Interface fromItf = getInterface(binding.getFrom(), itfs);
124 Interface toItf = getInterface(binding.getTo(), itfs);
125 if (fromItf == null &&
126 !binding.getFrom().endsWith(".component") &&
127 !binding.getFrom().endsWith("-controller"))
128 {
129 throw new ADLException(
130 "No such interface '" + binding.getFrom() + "'", (Node)binding);
131 } else if (toItf == null &&
132 !binding.getTo().endsWith(".component") &&
133 !binding.getTo().endsWith("-controller"))
134 {
135 throw new ADLException(
136 "No such interface '" + binding.getTo() + "'", (Node)binding);
137 }
138 if (fromItf != null && toItf != null) {
139 checkBinding(binding, fromItf, toItf, context);
140 }
141 }
142
143 void checkBinding (
144 final Binding binding,
145 final Interface fromItf,
146 final Interface toItf,
147 final Map context) throws ADLException
148 {
149 }
150
151 Interface getInterface (final String name, final Map itfs) {
152 return (Interface)itfs.get(name);
153 }
154 }
155 |
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