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1 package net.simya.ldap.taglib;
2
3 import javax.servlet.jsp.tagext.*;
4 import javax.servlet.jsp.*;
5 import javax.servlet.http.*;
6 import javax.naming.NamingException  ;
7 import javax.naming.directory.Attribute ;
8 import net.simya.ldap.beans.*;
9 import net.simya.ldap.servlet.*;
10
11 public class GetAttribute
12 extends TagSupport
13 {
14 private static final String DEFAULT_DELIMITER = ", ";
15 private static final String DEFAULT_MIMETYPE = "text/plain";
16 private static final String DEFAULT_MIMETEXT = "text";
17 private static final int DEFAULT_INDEX = -1;
18 private static final String DEFAULT_VALUE = "";
19
20 private String name = null;
21 private String delimiter = DEFAULT_DELIMITER;
22 private String mimeType = DEFAULT_MIMETYPE;
23 private int index = DEFAULT_INDEX;
24 private String def = DEFAULT_VALUE;
25
26 public int doStartTag()
27 throws JspException
28 {
29 Query queryTag = null;
30 try
31 {
32 queryTag = (Query) getParent();
33 }
34 catch ( Exception ex )
35 {
36 throw new JspTagException( "<getAttribute> tag should be child node of <query> tag." );
37 }
38
39 JspWriter out = pageContext.getOut();
40 try
41 {
42 Attribute attr = queryTag.getAttribute(name);
43 if ( attr == null )
44 {
45 out.print( def );
46 return EVAL_BODY_INCLUDE;
47 }
48 if ( index != DEFAULT_INDEX )
49 {
50 output( out, attr.get( index ) );
51 return EVAL_BODY_INCLUDE;
52 }
53 output( out, attr.get() );
54 for ( int i=1; i<attr.size(); i++ )
55 {
56 out.print( delimiter );
57 output( out, attr.get(i) );
58 }
59 } catch ( java.io.IOException ex )
60 {
61 throw new JspTagException( "IO Error" );
62 } catch (NamingException ex)
63 {
64 throw new LdapTaglibException( ex );
65 }
66 return EVAL_BODY_INCLUDE;
67 }
68
69 public void release()
70 {
71 name = null;
72 delimiter = DEFAULT_DELIMITER;
73 index = DEFAULT_INDEX;
74 mimeType = DEFAULT_MIMETYPE;
75 }
76
77 private void output( JspWriter out, Object attr )
78 throws java.io.IOException
79 {
80 if ( mimeType.startsWith( DEFAULT_MIMETEXT ) )
81 out.print( attr );
82 else
83 {
84 String id = LdapGlobalCache.addCache( attr, mimeType );
85 out.print( ((HttpServletRequest)pageContext.getRequest()).getContextPath() );
86 out.print( '/' );
87 out.print( "LdapGlobalCache?id=" );
88 out.print( id );
89 }
90 }
91
92 public String getname() { return this.name; }
93 public void setName(String name) { this.name = name; }
94
95 public String getDelimiter() { return this.delimiter; }
96 public void setDelimiter(String delimiter) { this.delimiter = delimiter; }
97
98 public String getIndex() {
99 return new Integer (this.index).toString();
100 }
101 public void setIndex(String index){
102 this.index = new Integer (index).intValue();
103 }
104
105 public String getMimeType() { return this.mimeType; }
106 public void setMimeType(String mimeType) { this.mimeType = mimeType; }
107
108 public String getDefault() { return this.def; }
109 public void setDefault(String def) { this.def = def; }
110 } |
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