TextTag


1   /*
2    * Copyright (c) 2003, Inversoft
3    *
4    * This software is distribuable under the GNU Lesser General Public License.
5    * For more information visit gnu.org.
6    */
7   package com.inversoft.verge.mvc.view.jsp.html;
8   
9   
10  import java.io.IOException  ;
11  
12  import javax.servlet.jsp.JspException  ;
13  
14  import org.apache.log4j.Logger;
15  
16  import com.inversoft.util.ObjectTools;
17  import com.inversoft.verge.mvc.view.HtmlViewToolkit;
18  
19  
20  /**
21   * This class is a basic text input tag for use in a jsp
22   * page. It creates an HTML text input tag.
23   *
24   * @author Brian Pontarelli
25   */
26  public class TextTag extends InputTag {
27  
28      /**
29       * This classes logger
30       */
31      private static final Logger logger = Logger.getLogger(TextTag.class);
32  
33  
34      /**
35       * Ouputs a text input tag.
36       *
37       * @return  Always returns SKIP_BODY
38       * @throws  JspException If there was any problem outputting the input tag
39       */
40      public int doStartTag() throws JspException   {
41  
42          // Initialize the parent reference and the bean reference for model
43          // sub-classes
44          initialize();
45  
46          StringBuffer   buf = new StringBuffer  ();
47          createTextTag(buf, getId(), localName, localValue);
48  
49          if (logger.isDebugEnabled()) {
50              logger.debug("The text tag: " + buf.toString());
51              logger.debug("id: " + toString());
52          }
53  
54          try {
55              pageContext.getOut().print(buf.toString());
56          } catch (IOException   ioe) {
57              throw new JspException  (ioe.toString());
58          }
59  
60          return SKIP_BODY;
61      }
62  
63      /**
64       * Does the work of creating the tags body. This method can be overridden
65       * in sub-classes to change the attributes that are appended, etc. By default
66       * this creates a text tag with the name, value, attributes (single and named)
67       *
68       * @param   buf The StringBuffer to append to
69       * @param   name The name of the input tag
70       * @param   value The value to use for the text tag
71       */
72      protected void createTextTag(StringBuffer   buf, String   id, String   name,
73              Object   value)
74      throws JspException   {
75          String   valueStr = ObjectTools.toString(value);
76          HtmlViewToolkit.createTextTag(buf, id, name, valueStr, attributes,
77              singleAttrs);
78      }
79  }
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