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1
5 package org.exoplatform.text.template;
6
7 import java.util.* ;
8 import net.sf.cglib.reflect.FastClass;
9
14 public class BeanDataHandler implements DataHandler {
15 private static Class  [] EMPTY_TYPE = {} ;
16 private static Object [] EMPTY_ARGS = {} ;
17 private static Map fastClassMap_ = new HashMap(300) ;
18
19 private Object bean_ ;
20 private FastClass fastClass_ ;
21 private Class type_ ;
22
23 public BeanDataHandler(Class beanType) {
24 type_ = beanType ;
25 fastClass_ = getFastClass(beanType) ;
26 }
27
28 public BeanDataHandler(Object bean) {
29 bean_ = bean ;
30 type_ = bean.getClass() ;
31 fastClass_ = getFastClass(type_);
32 }
33
34 public Class getDataTypeHandler() { return type_ ; }
35
36 public String getValueAsString(DataBindingValue value) {
37 try {
38 Object o = fastClass_.invoke(value.getMethodName(), EMPTY_TYPE, bean_, EMPTY_ARGS) ;
39 if(o == null) return "" ;
40 return o.toString();
41 } catch (Exception ex) {
42 return value.getExpression() + " has error: " + ex.getMessage();
43 }
44 }
45
46 public Object getValue(DataBindingValue value) {
47 try {
48 Object o = fastClass_.invoke(value.getMethodName(), EMPTY_TYPE, bean_, EMPTY_ARGS) ;
49 return o;
50 } catch (Exception ex) {
51 return value.getExpression() + " has error: " + ex.getMessage();
52 }
53 }
54
55 public void setBean(Object bean) {
56 bean_ = bean ;
57 }
58
59 private FastClass getFastClass(Class type) {
60 FastClass fc = (FastClass)fastClassMap_.get(type) ;
61 if(fc == null) {
62 synchronized(fastClassMap_) {
63 fc = FastClass.create(type) ;
64 fastClassMap_.put(type, fc) ;
65 }
66 }
67 return fc ;
68 }
69 }
70 |
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