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1
14 package org.wings.template;
15
16 import bsh.Interpreter;
17 import org.apache.commons.logging.Log;
18 import org.apache.commons.logging.LogFactory;
19 import org.wings.SComponent;
20 import org.wings.session.SessionManager;
21
22 import java.lang.reflect.Method  ;
23 import java.util.HashMap ;
24
25
35 public class DefaultPropertyManager implements PropertyManager {
36
37 private final transient static Log log = LogFactory.getLog(DefaultPropertyManager.class);
38 static final Class [] classes = {SComponent.class};
39
40 public final HashMap propertyValueConverters = new HashMap ();
41
42 public static final DefaultPropertyValueConverter
43 DEFAULT_PROPERTY_VALUE_CONVERTER = DefaultPropertyValueConverter.INSTANCE;
44
45 private boolean scriptEnabled = false;
46
47
48 public DefaultPropertyManager() {
49
50 }
51
52 protected Interpreter createInterpreter() {
53 return new Interpreter();
54 }
55
56 public void setProperty(SComponent comp, String name, String value) {
57 if (scriptEnabled && "SCRIPT".equals(name)) {
58 Interpreter interpreter = createInterpreter();
59
60 try {
61 log.debug("eval script " + value);
62
63 interpreter.set("component", comp);
64 interpreter.set("session", SessionManager.getSession());
65
66 interpreter.eval(value);
67 } catch (Exception ex) {
68 ex.printStackTrace();
69 }
72
74 }
76
77 Method [] methods = comp.getClass().getMethods();
78
79 for (int i = 0; i < methods.length; i++) {
80 Method method = methods[i];
81
82 if (method.getName().startsWith("set") &&
83 name.equals(method.getName().substring(3).toUpperCase()) &&
84 method.getParameterTypes().length == 1) {
85
86 Class paramType = method.getParameterTypes()[0];
87
88 PropertyValueConverter valueConverter = getValueConverter(paramType);
89
90 if (valueConverter != null) {
91 try {
92 method.setAccessible(true);
94 method.invoke(comp,
95 new Object []{valueConverter.convertPropertyValue(value, paramType)});
96 return;
97 } catch (Exception ex) {
98 }
101 } } } }
105
106 public void addPropertyValueConverter(PropertyValueConverter valueConverter,
107 Class clazz) {
108
109 propertyValueConverters.put(clazz, valueConverter);
110 }
111
112 protected PropertyValueConverter getValueConverter(Class clazz) {
113 if (clazz == null) {
114 return DEFAULT_PROPERTY_VALUE_CONVERTER;
115 }
117 if (propertyValueConverters.containsKey(clazz)) {
118 return (PropertyValueConverter) propertyValueConverters.get(clazz);
119 }
121 return getValueConverter(clazz.getSuperclass());
122 }
123
124 public Class [] getSupportedClasses() {
125 return classes;
126 }
127 }
128 |
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