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1 package org.exoplatform.portlet.faces.taglib;
2
3 import java.io.IOException  ;
4 import java.util.Locale ;
5 import javax.faces.component.UIComponent;
6 import javax.faces.component.UIViewRoot;
7 import javax.faces.context.*;
8 import javax.faces.el.ValueBinding;
9 import javax.faces.webapp.UIComponentBodyTag;
10 import javax.faces.webapp.UIComponentTag;
11 import javax.servlet.ServletRequest ;
12 import javax.servlet.jsp.JspException ;
13 import javax.servlet.jsp.jstl.core.Config;
14 import javax.portlet.PortletSession ;
15 import javax.portlet.RenderResponse ;
16
17 import org.apache.commons.logging.Log;
18 import org.exoplatform.services.log.LogUtil;
19
20 import com.sun.faces.util.Util;
21
22
23 public class ExoViewTag extends UIComponentBodyTag {
24 private static Log log_ = LogUtil.getLog("org.exoplatform.portlet.faces.faces");
25
26 protected String locale;
27
28 public void setLocale(String newLocale) { locale = newLocale; }
29
30 public ExoViewTag() { locale = null; }
31
32 protected UIComponent findComponent(FacesContext context) throws JspException {
33 UIComponent comp = super.findComponent(context) ;
34 return comp ;
35 }
36
37 protected int getDoStartValue() throws JspException {
38 return 2;
39 }
40
41 public int doStartTag() throws JspException {
42 int rc = 0;
43 try {
44 rc = super.doStartTag();
45 } catch(JspException e) {
46 throw e;
47 } catch(Throwable t) {
48 throw new JspException (t);
49 }
50 return rc;
51 }
52
53 public void doInitBody() throws javax.servlet.jsp.JspException {
54 FacesContext facesContext = FacesContext.getCurrentInstance();
55 ResponseWriter facesWriter = facesContext.getResponseWriter();
56 facesWriter = facesWriter.cloneWithWriter(getBodyContent()) ;
57 facesContext.setResponseWriter(facesWriter) ;
58 super.doInitBody() ;
59 }
60
61 public int doAfterBody() throws JspException {
62 String content = null;
63 try {
64 if(null == (bodyContent = getBodyContent())) {
65 Object params[] = { getClass().getName() };
66 throw new JspException ("Body content is nulll" + params[0].toString());
67 }
68 content = bodyContent.getString();
69 getPreviousOut().write(content);
70 } catch(IOException iox) {
71 Object params[] = { "session", iox.getMessage() };
72 throw new JspException ("SAVING STATE ERROR" + params[0].toString());
73 }
74 return 6;
75 }
76
77 public int doEndTag() throws JspException {
78 int rc = super.doEndTag();
79 FacesContext context = FacesContext.getCurrentInstance();
80
88 PortletSession session = null;
89 if(null != (session = (PortletSession)context.getExternalContext().getSession(false))) {
90 RenderResponse response = (RenderResponse)context.getExternalContext().getResponse();
91 session.setAttribute("javax.faces.request.charset", response.getCharacterEncoding());
92 }
93 return rc;
94 }
95
96 public String getComponentType() {
97 throw new IllegalStateException ();
98 }
99
100 public String getRendererType() {
101 return null;
102 }
103
104 protected int getDoEndValue() throws JspException {
105 return 6;
106 }
107
108 protected void setProperties(UIComponent component) {
109 super.setProperties(component);
110 Locale viewLocale = null;
111 ValueBinding vb = null;
112 if(null != locale) {
113 if(UIComponentTag.isValueReference(locale)) {
114 component.setValueBinding("locale", vb = Util.getValueBinding(locale));
115 Object resultLocale = vb.getValue(FacesContext.getCurrentInstance());
116 if(resultLocale instanceof Locale )
117 viewLocale = (Locale )resultLocale;
118 else
119 if(resultLocale instanceof String )
120 viewLocale = getLocaleFromString((String )resultLocale);
121 } else {
122 viewLocale = getLocaleFromString(locale);
123 }
124 ((UIViewRoot)component).setLocale(viewLocale);
125 Config.set((ServletRequest )getFacesContext().getExternalContext().getRequest(), "javax.servlet.jsp.jstl.fmt.locale", viewLocale);
126 }
127 }
128
129 protected Locale getLocaleFromString(String localeExpr) {
130 Locale result = Locale.getDefault();
131 if(localeExpr.indexOf("_") == -1 && localeExpr.indexOf("-") == -1) {
132 if(localeExpr.length() == 2)
133 result = new Locale (localeExpr, "");
134 } else
135 if(localeExpr.length() == 5) {
136 String language = localeExpr.substring(0, 2);
137 String country = localeExpr.substring(3, localeExpr.length());
138 result = new Locale (language, country);
139 }
140 return result;
141 }
142 }
143 |
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