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1
5 package org.exoplatform.portlet.faces.component;
6
7 import java.io.IOException  ;
8 import java.io.InputStream ;
9 import javax.faces.context.FacesContext;
10 import javax.faces.context.ResponseWriter;
11 import javax.portlet.PortletConfig ;
12
13 import org.exoplatform.faces.core.component.UIExoComponentBase;
14 import org.exoplatform.portlet.faces.context.ExternalContextImpl ;
15
21 public class UISimpleHelp extends UIExoComponentBase {
22 public static final String COMPONENT_TYPE = "UISimpleHelp";
23 public static final String RENDERER_TYPE = "NoRenderer";
24
25 private String content_ ;
26 public UISimpleHelp() {
27 try {
28 ExternalContextImpl eContext =
29 (ExternalContextImpl) FacesContext.getCurrentInstance().getExternalContext() ;
30 PortletConfig config = eContext.getConfig() ;
31 String path = config.getInitParameter("portlet-help-file") ;
32 if (path != null) {
33 InputStream is = eContext.getResourceAsStream(path) ;
34 if (is != null) {
35 byte[] buf = new byte[is.available()] ;
36 is.read(buf) ;
37 content_ = new String (buf) ;
38 } else {
39 content_ = "The help file is not available" ;
40 }
41 } else {
42 content_ = "The help file is not available" ;
44 }
45 } catch (Exception ex) {
46 content_ = ex.getMessage() ;
47 ex.printStackTrace() ;
48 }
49 }
50
51 public String getComponentType() { return COMPONENT_TYPE; }
52
53 public String getRendererType() { return RENDERER_TYPE; }
54
55
56 public void decode(FacesContext context) {
57 }
58
59 final public void encodeBegin(FacesContext context) throws IOException {
60 ResponseWriter w = context.getResponseWriter() ;
61 w.write(content_);
62 }
63
64 final public void encodeChildren(FacesContext context) throws IOException {
65 }
66
67 final public void encodeEnd(FacesContext context) throws IOException {
68 }
69 }
70 |
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