TemplateUtils


1   package com.teamkonzept.lib;
2   
3   import java.io.*;
4   import java.util.Hashtable  ;
5   import com.teamkonzept.lib.*;
6   import com.teamkonzept.lib.templates.*;
7   import de.webman.template.jsp.*;
8   import de.webman.template.xslt.*;
9   import com.teamkonzept.web.TKHTMLTemplate;
10  
11  /**
12   * Utility Methoden fuer Templates
13   *
14   * @author $Author: uli $
15   * @version $Revision: 1.11 $
16   */
17  public class TemplateUtils
18      implements TemplateTypes
19  {
20  
21      /**
22       * The cache for JSP and XSLT templates
23       */
24      private static Hashtable   cache = new Hashtable  ();
25  
26      /**
27       * The top level generation directory.
28       */
29      private static final String   TOP_LEVEL_GENDIR = "html_templates";
30  
31      /**
32       * The second level generation directory.
33       */
34      private static final String   SECOND_LEVEL_GENDIR = "templates";
35  
36      /**
37       * The template source directory.
38       */
39      private static final String   WEBMAN_TEMPLATE_DIR = "templates";
40  
41      /**
42       * Returns the template source directory.
43       *
44       * @return the template source directory.
45       */
46      public static String   getWebmanTemplateDirectory ()
47      {
48          return WEBMAN_TEMPLATE_DIR;
49      }
50  
51      /**
52       * Returns the generation directory.
53       *
54       * @return the generation directory.
55       */
56      public static String   getGenerationDirectory ()
57      {
58          return TOP_LEVEL_GENDIR + File.separator + SECOND_LEVEL_GENDIR + File.separator;
59      }
60  
61      /**
62       * Returns the top level generation directory.
63       *
64       * @return the top level generation directory.
65       */
66      public static String   getTopLevelGenDir ()
67      {
68          return TOP_LEVEL_GENDIR;
69      }
70  
71      /**
72       * Returns the second level generation directory.
73       *
74       * @return the second level generation directory.
75       */
76      public static String   getSecondLevelGenDir ()
77      {
78          return SECOND_LEVEL_GENDIR;
79      }
80  
81      /**
82       * Return the specified template object.
83       *
84       * @param name the template source file name.
85       * @param root the root directory.
86       * @param editor the template editing mode.
87       * @return the specified template object.
88       * @throws TKTemplateSyntaxException if the specified template source is errornous.
89       * @throws FileNotFoundException if the specified template source does not exist.
90       */
91      public static TemplateBasic getTemplate (String   name,
92                                               String   root,
93                                               boolean editor)
94          throws TKTemplateSyntaxException, FileNotFoundException
95      {
96          if (name.toUpperCase().endsWith(JSP_TEMPLATE) || name.toUpperCase().endsWith(XSLT_TEMPLATE))
97          {
98              // falsche RootDir ?
99              int index = root.indexOf(TOP_LEVEL_GENDIR);
100             if ( index != -1)
101             {
102                 root = root.substring(0, index);
103             }
104             index = root.indexOf("file:");
105             if ( index != -1)
106             {
107                 root = root.substring(5, root.length());
108             }
109             String   key = name + new Boolean  (editor).toString();
110             TemplateBasic t = (TemplateBasic)cache.get(key);
111             if (t != null)
112             {
113                 return t;
114             }
115             if (name.toUpperCase().endsWith(JSP_TEMPLATE) )
116             {
117                 t = new JSPTemplate(root, name, editor);
118                 cache.put(key, t);
119                 return t;
120             }
121             else
122             {
123                 t = new XSLTTemplate(root, name, editor);
124                 cache.put(key, t);
125                 return t;
126             }
127         }
128 
129         if (name.toUpperCase().endsWith(TK_TEMPLATE))
130         {
131             return new TKHTMLTemplate(root + name);
132         }
133 
134         return null;
135     }
136 
137 }
138
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