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20 package org.apache.pluto.tags;
21
22 import javax.portlet.RenderResponse;
23 import javax.servlet.jsp.JspException;
24 import javax.servlet.jsp.JspWriter;
25 import javax.servlet.jsp.tagext.TagSupport;
26 import java.io.IOException;
27
28 /***
29 * This tag produces a unique value for the current portlet.
30 *
31 *
32 * Supporting class for the <CODE>namespace</CODE> tag.
33 * writes a unique value for the current portlet
34 * <BR>This tag has no attributes
35 */
36 public class NamespaceTag extends TagSupport
37 {
38
39
40
41
42 public int doStartTag() throws JspException {
43 RenderResponse renderResponse = (RenderResponse)
44 pageContext.getRequest().getAttribute("javax.portlet.response");
45 String namespace = renderResponse.getNamespace();
46 JspWriter writer = pageContext.getOut();
47 try
48 {
49 writer.print(namespace);
50 }
51 catch (IOException ioe)
52 {
53 throw new JspException("Error writing namespace", ioe);
54 }
55 return SKIP_BODY;
56 }
57 }