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1
5 package org.exoplatform.text.template.xhtml;
6
7 import java.io.IOException  ;
8 import java.io.Writer ;
9 import java.util.ArrayList ;
10 import java.util.List ;
11 import java.util.MissingResourceException ;
12 import java.util.ResourceBundle ;
13 import org.exoplatform.text.template.*;
14
19 abstract public class Element {
20 private List elements_ = new ArrayList () ;
21 protected Element[] children_ ;
22 private boolean locked_ = false ;
23 protected String cssClass_ ;
24 protected String cssStyle_ ;
25 protected Class dataHandlerType_ ;
26 protected ObjectFormater formater_ ;
27
28 public Class getDataHandlerType() { return dataHandlerType_ ; }
29 public Element setDataHandlerType(Class type) {
30 dataHandlerType_ = type ;
31 return this ;
32 }
33
34 public Element setFomater(ObjectFormater formater) {
35 formater_ = formater ;
36 return this ;
37 }
38
39 public String getCssClass() { return cssClass_ ; }
40 public Element setCssClass(String css) {
41 cssClass_ = css ;
42 return this ;
43 }
44
45 public String getStyle() { return cssStyle_ ; }
46 public Element setStyle(String style) {
47 cssStyle_ = style ;
48 return this ;
49 }
50
51 public void addElement(Element element) {
52 if(locked_)
53 throw new RuntimeException ("The element has been optimized, rebuild the tree") ;
54 elements_.add(element) ;
55 }
56
57 public Element add(Element element) {
58 if(locked_)
59 throw new RuntimeException ("The element has been optimized, rebuild the tree") ;
60 elements_.add(element) ;
61 return this ;
62 }
63
64 final public Element optimize() {
65 optimize(null) ;
66 return this ;
67 }
68
69 final public Element optimize(Element parent) {
70 children_ = new Element[elements_.size()] ;
71 if(dataHandlerType_ == null && parent != null) {
72 dataHandlerType_ = parent.getDataHandlerType() ;
73 }
74
75 for(int i = 0; i < children_.length; i++) {
76 children_[i] = (Element) elements_.get(i) ;
77 children_[i].optimize(this) ;
78 }
79 locked_ = true ;
80 elements_ = null ;
81 return this ;
82 }
83
84 static protected String resolveValueAsString(Value value, DataHandler handler , ResourceBundle res ) {
85 if(value instanceof ResourceBindingValue) {
86 ResourceBindingValue rv = (ResourceBindingValue) value ;
87 try {
88 return res.getString(rv.getKey()) ;
89 } catch (MissingResourceException ex) {
90 return rv.getExpression() ;
91 }
92 } else if(value instanceof DataBindingValue) {
93 return handler.getValueAsString((DataBindingValue) value) ;
94 }
95 return ((StringValue)value).getValue() ;
96 }
97
98 abstract public void render(XhtmlDataHandlerManager manager,
99 ResourceBundle res, Writer w) throws IOException ;
100 } |
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