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1 package org.apache.beehive.controls.runtime.assembly;
2
3
20
21 import org.apache.beehive.controls.api.bean.ControlInterface;
22 import org.apache.beehive.controls.api.assembly.ControlAssemblyContext;
23 import org.apache.beehive.controls.api.assembly.ControlAssemblyException;
24 import org.apache.beehive.controls.runtime.bean.ControlBeanContext;
25
26 import java.io.File  ;
27 import java.lang.annotation.Annotation ;
28 import java.lang.reflect.Method ;
29 import java.util.*;
30
31 import com.sun.mirror.apt.Messager;
32 import com.sun.mirror.util.SourcePosition;
33
34
38 public abstract class BaseAssemblyContext implements ControlAssemblyContext
39 {
40 protected BaseAssemblyContext( Class controlIntfOrExt, Map<String ,String > bindings,
41 Set<String > clients, File moduleRoot,
42 String moduleName, File srcOutputRoot )
43 throws ControlAssemblyException
44 {
45 _controlIntfOrExt = controlIntfOrExt;
46 _bindings = bindings;
47 _clients = clients;
48 _moduleRoot = moduleRoot;
49 _moduleName = moduleName;
50 _srcOutputRoot = srcOutputRoot;
51 _messager = new DefaultAssemblyMessager();
52
53 Queue<Class > q = new LinkedList<Class >();
55 Class ci = controlIntfOrExt;
56
57 while ( ci != null )
58 {
59 if ( ci.isAnnotationPresent(ControlInterface.class) )
60 {
61 _controlMostDerivedIntf = ci;
62 break;
63 }
64
65 Class [] supers = ci.getInterfaces();
66 for ( Class s : supers )
67 q.offer( s );
68
69 ci = q.poll();
70 }
71
72 if ( _controlMostDerivedIntf == null )
73 throw new ControlAssemblyException( "Invalid control type: " + controlIntfOrExt.getName() );
74 }
75
76 public Class getControlType()
77 {
78 return _controlIntfOrExt;
79 }
80
81 public Class getMostDerivedControlInterface()
82 {
83 return _controlMostDerivedIntf;
84 }
85
86 public <T extends Annotation > T
89 getControlAnnotation(Class <T> annotationClass)
90 {
91 Class controlInterface = getControlType();
92 return (T)controlInterface.getAnnotation(annotationClass);
93 }
94
95 public <T extends Annotation > T
96 getControlMethodAnnotation(Class <T> annotationClass, Method m)
97 throws NoSuchMethodException
98 {
99 Class controlInterface = getControlType();
100 Method controlMethod = controlInterface.getMethod(
101 m.getName(), m.getParameterTypes());
102
103 return (T)controlMethod.getAnnotation(annotationClass);
104 }
105
106 public String getDefaultImplClassName()
107 {
108 Class ci = getMostDerivedControlInterface();
109 ControlInterface a = (ControlInterface)
110 ci.getAnnotation(ControlInterface.class);
111
112 return ControlBeanContext.resolveDefaultBinding( a.defaultBinding(), ci.getName() );
113 }
114
115 public File getSrcOutputDir()
116 {
117 return _srcOutputRoot;
118 }
119
120 public File getModuleDir()
121 {
122 return _moduleRoot;
123 }
124
125 public String getModuleName()
126 {
127 return _moduleName;
128 }
129
130 public Set<String > getClients()
131 {
132 return _clients;
133 }
134
135 public Messager getMessager()
136 {
137 return _messager;
138 }
139
140 public boolean hasErrors()
141 {
142 return _nErrors > 0;
143 }
144
145 private class DefaultAssemblyMessager implements Messager
146 {
147 public void printError( SourcePosition pos, String msg )
148 {
149 printDiagnostic( "Error", pos, msg );
150 _nErrors++;
151 }
152 public void printError( String msg )
153 {
154 printError( null, msg );
155 }
156
157 public void printNotice( SourcePosition pos, String msg )
158 {
159 printDiagnostic( "Notice", pos, msg );
160 }
161 public void printNotice( String msg )
162 {
163 printNotice( null, msg );
164 }
165
166 public void printWarning( SourcePosition pos, String msg )
167 {
168 printDiagnostic( "Warning", pos, msg );
169 }
170 public void printWarning( String msg )
171 {
172 printWarning( null, msg );
173 }
174
175 protected void printDiagnostic( String type, SourcePosition pos, String msg )
176 {
177 String fn = "<not available>";
178 int line = 0;
179 int column = 0;
180
181 if ( pos != null )
182 {
183 fn = pos.file().getName();
184 line = pos.line();
185 column = pos.column();
186 }
187
188 System.out.println( type + ": (" + fn + ":" + line + ":" + column + ") " + msg );
189 }
190 }
191
192 private File _moduleRoot;
193 private String _moduleName;
194 private File _srcOutputRoot;
195 private Class _controlIntfOrExt;
196 private Map<String ,String > _bindings;
197 private Set<String > _clients;
198 private Messager _messager;
199 private int _nErrors = 0;
200
201 private Class _controlMostDerivedIntf;
202 }
203 |
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