##### Coverage Report - org.webmacro.engine.StreamTemplate

Classes in this File | Line Coverage | Branch Coverage | Complexity
StreamTemplate |
0% | 0/57
0% | 0/12
| 2.375;2.375

1 |  |
     /*
2 |  |
      * Copyright (C) 1998-2000 Semiotek Inc.  All Rights Reserved.
3 |  |
      *
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      * Redistribution and use in source and binary forms, with or without
5 |  |
      * modification, are permitted under the terms of either of the following
6 |  |
      * Open Source licenses:
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      *
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      * The GNU General Public License, version 2, or any later version, as
9 |  |
      * published by the Free Software Foundation
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      * (http://www.fsf.org/copyleft/gpl.html);
11 |  |
      *
12 |  |
      *  or
13 |  |
      *
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      * The Semiotek Public License (http://webmacro.org/LICENSE.)
15 |  |
      *
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      * This software is provided "as is", with NO WARRANTY, not even the
17 |  |
      * implied warranties of fitness to purpose, or merchantability. You
18 |  |
      * assume all risks and liabilities associated with its use.
19 |  |
      *
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      * See www.webmacro.org for more information on the WebMacro project.
21 |  |
      */
22 |  |
23 |  |
24 |  |
     package org.webmacro.engine;
25 |  |
26 |  |
     import java.io.IOException;
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     import java.io.InputStream;
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     import java.io.InputStreamReader;
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     import java.io.Reader;
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     import java.util.Date;
31 |  |
32 |  |
     import org.webmacro.Broker;
33 |  |
     import org.webmacro.Context;
34 |  |
     import org.webmacro.Template;
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     import org.webmacro.WM;
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     import org.webmacro.WMConstants;
37 |  |
     import org.webmacro.WebMacro;
38 |  |
     import org.webmacro.util.SelectList;
39 |  |
40 |  |
     /**
41 |  |
      * StreamTempaltes are constructed with a stream from which they
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      * read their data. They can only read the stream once, and after
43 |  |
      * that will throw an exception. Mostly they are useful for testing
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      * WebMacro directives on the command line, since a main() is
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      * provided which reads the template on standard input.
46 |  |
      */
47 |  |
48 |  |
     public class StreamTemplate extends WMTemplate
49 |  |
     {
50 |  |
51 |  |
         /**
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          * Our stream.
53 |  |
          */
54 |  |
         private Reader _in;
55 | 0 |
         private String _name = null;
56 |  |
57 |  |
         /**
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          * Instantiate a template based on the specified stream
59 |  |
          */
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         public StreamTemplate (Broker broker, Reader inStream)
61 |  |
         {
62 | 0 |
             super(broker);
63 | 0 |
             _in = inStream;
64 | 0 |
         }
65 |  |
66 |  |
         /**
67 |  |
          * Instantiate a template based on the specified stream
68 |  |
          * Will use webmacro's default encoding.
69 |  |
          * @param broker broker for this template
70 |  |
          * @param in input stream to read template from
71 |  |
          * @throws IOException if default encoding is unsupported
72 |  |
          */
73 |  |
         public StreamTemplate (Broker broker, InputStream in)
74 |  |
                 throws IOException
75 |  |
         {
76 | 0 |
             this(broker, in, null);
77 | 0 |
         }
78 |  |
79 |  |
         /**
80 |  |
          * Instantiate a template based on the specified stream
81 |  |
          * If encoding is null, webmacro's default encoding will
82 |  |
          * be used.
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          * @param broker broker for this template
84 |  |
          * @param in input stream to read template from
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          * @param encoding encoding of input stream
86 |  |
          * @throws IOException if encoding is unsupported
87 |  |
          */
88 |  |
         public StreamTemplate (Broker broker, InputStream in, String encoding)
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                 throws IOException
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         {
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             super(broker);
92 | 0 |
             if (encoding == null)
93 | 0 |
                 encoding = getDefaultEncoding();
94 | 0 |
             _in = new InputStreamReader(in, encoding);
95 | 0 |
         }
96 |  |
97 |  |
         /**
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          * Get the stream the template should be read from. Parse will
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          * call this method in order to locate a stream.
100 |  |
          */
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         protected Reader getReader () throws IOException
102 |  |
         {
103 | 0 |
             if (_in != null)
104 |  |
             {
105 | 0 |
                 Reader ret = _in;
106 | 0 |
                 _in = null;
107 | 0 |
                 return ret;
108 |  |
             }
109 |  |
             else
110 |  |
             {
111 | 0 |
                 throw new IOException("Already read stream.");
112 |  |
             }
113 |  |
         }
114 |  |
115 |  |
         /**
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          * Return a name for this template. For example, if the template reads
117 |  |
          * from a file you might want to mention which it is--will be used to
118 |  |
          * produce error messages describing which template had a problem.
119 |  |
          */
120 |  |
         public String toString ()
121 |  |
         {
122 | 0 |
             String s = null;
123 | 0 |
             if (_in != null)
124 | 0 |
                 s = _in.toString();
125 | 0 |
             return (_name != null)
126 |  |
                     ? "StreamTemplate:" + _name
127 |  |
                     : (s != null) ? "StreamTemplate(" + _in + ")" : "(stream)";
128 |  |
         }
129 |  |
130 |  |
         public String getName ()
131 |  |
         {
132 | 0 |
             return (_name == null) ? toString() : _name;
133 |  |
         }
134 |  |
135 |  |
         public void setName (String name)
136 |  |
         {
137 | 0 |
             _name = name;
138 | 0 |
         }
139 |  |
140 |  |
         /**
141 |  |
          * Simple test.
142 |  |
          */
143 |  |
         public static void main (String arg[])
144 |  |
         {
145 |  |
146 |  |
             // Build a context
147 | 0 |
             WebMacro wm = null;
148 | 0 |
             Context context = null;
149 | 0 |
             String encoding = null;
150 |  |
151 |  |
             try
152 |  |
             {
153 | 0 |
                 wm = new WM();
154 | 0 |
                 context = wm.getContext();
155 | 0 |
                 Object names[] = {"prop"};
156 | 0 |
                 context.setProperty(names, "Example property");
157 | 0 |
                 encoding = wm.getConfig(WMConstants.TEMPLATE_INPUT_ENCODING);
158 |  |
             }
159 | 0 |
             catch (Exception e)
160 |  |
             {
161 | 0 |
                 e.printStackTrace();
162 | 0 |
                 return;
163 | 0 |
             }
164 |  |
165 |  |
             try
166 |  |
             {
167 |  |
                 /*
168 |  |
                 HashMap hm = new HashMap();
169 |  |
                 hm.put("one", "the first");
170 |  |
                 hm.put("two", "the second");
171 |  |
                 hm.put("three", "the third");
172 |  |
                 context.setBean(hm);
173 |  |
                 */
174 | 0 |
                 context.put("helloworld", "Hello World");
175 | 0 |
                 context.put("hello", "Hello");
176 | 0 |
                 context.put("file", "include.txt");
177 | 0 |
                 context.put("today", new Date());
178 | 0 |
                 TestObject[] fruits = {new TestObject("apple", false),
179 |  |
                                        new TestObject("lemon", true),
180 |  |
                                        new TestObject("pear", false),
181 |  |
                                        new TestObject("orange", true),
182 |  |
                                        new TestObject("watermelon", false),
183 |  |
                                        new TestObject("peach", false),
184 |  |
                                        new TestObject("lime", true)};
185 |  |
186 | 0 |
                 SelectList sl = new SelectList(fruits, 3);
187 | 0 |
                 context.put("sl-fruits", sl);
188 |  |
189 | 0 |
                 context.put("fruits", fruits);
190 | 0 |
                 context.put("flipper", new TestObject("flip", false));
191 |  |
192 | 0 |
                 System.out.println("- - - - - - - - - - - - - - - - - - - -");
193 | 0 |
                 System.out.println("Context contains: helloWorld, " +
194 |  |
                         "hello, file, TestObject[] fruits, " +
195 |  |
                         "SelectList sl(fruits, 3), TestObject flipper");
196 | 0 |
                 System.out.println("- - - - - - - - - - - - - - - - - - - -");
197 |  |
198 | 0 |
                 Template t1 = new StreamTemplate(wm.getBroker(),
199 |  |
                         new InputStreamReader(System.in));
200 | 0 |
                 t1.parse();
201 |  |
202 | 0 |
                 System.out.println("*** RESULT ***");
203 | 0 |
                 t1.write(System.out, encoding, context);
204 | 0 |
                 System.out.println("*** DONE ***");
205 | 0 |
                 context.clear();
206 |  |
207 |  |
             }
208 | 0 |
             catch (Exception e)
209 |  |
             {
210 | 0 |
                 e.printStackTrace();
211 | 0 |
             }
212 |  |
213 | 0 |
         }
214 |  |
215 |  |
     }