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1 package com.opensymphony.webwork.views.freemarker.tags;
2
3 import com.opensymphony.webwork.components.Component;
4 import com.opensymphony.xwork.util.OgnlValueStack;
5 import freemarker.template.TemplateModelException;
6 import freemarker.template.TemplateTransformModel;
7
8 import javax.servlet.http.HttpServletRequest  ;
9 import javax.servlet.http.HttpServletResponse ;
10 import java.io.IOException ;
11 import java.io.Writer ;
12 import java.util.HashMap ;
13 import java.util.Iterator ;
14 import java.util.Map ;
15
16
21 public abstract class TagModel implements TemplateTransformModel {
22 protected OgnlValueStack stack;
23 protected HttpServletRequest req;
24 protected HttpServletResponse res;
25
26 public TagModel(OgnlValueStack stack, HttpServletRequest req, HttpServletResponse res) {
27 this.stack = stack;
28 this.req = req;
29 this.res = res;
30 }
31
32 public Writer getWriter(Writer writer, Map params) throws TemplateModelException, IOException {
33 Component bean = getBean();
34 params = convertParams(params);
35 bean.copyParams(params);
36 bean.start(writer);
38 return new CallbackWriter(bean, writer);
39 }
40
41 protected abstract Component getBean();
42
43 private Map convertParams(Map params) {
44 HashMap map = new HashMap (params.size());
45 for (Iterator iterator = params.entrySet().iterator(); iterator.hasNext();) {
46 Map.Entry entry = (Map.Entry ) iterator.next();
47 map.put(entry.getKey(), entry.getValue().toString());
48 }
49 return map;
50 }
51
52 }
53 |
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