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<a name="1" href="#1">1</a> <em class="comment">/*</em>
<a name="2" href="#2">2</a> <em class="comment"> * The Apache Software License, Version 1.1</em>
<a name="3" href="#3">3</a> <em class="comment"> *</em>
<a name="4" href="#4">4</a> <em class="comment"> * Copyright (c) 2003 The Apache Software Foundation. All rights</em>
<a name="5" href="#5">5</a> <em class="comment"> * reserved.</em>
<a name="6" href="#6">6</a> <em class="comment"> *</em>
<a name="7" href="#7">7</a> <em class="comment"> * Redistribution and use in source and binary forms, with or without</em>
<a name="8" href="#8">8</a> <em class="comment"> * modification, are permitted provided that the following conditions</em>
<a name="9" href="#9">9</a> <em class="comment"> * are met:</em>
<a name="10" href="#10">10</a> <em class="comment"> *</em>
<a name="11" href="#11">11</a> <em class="comment"> * 1. Redistributions of source code must retain the above copyright</em>
<a name="12" href="#12">12</a> <em class="comment"> * notice, this list of conditions and the following disclaimer.</em>
<a name="13" href="#13">13</a> <em class="comment"> *</em>
<a name="14" href="#14">14</a> <em class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</em>
<a name="15" href="#15">15</a> <em class="comment"> * notice, this list of conditions and the following disclaimer in</em>
<a name="16" href="#16">16</a> <em class="comment"> * the documentation and/or other materials provided with the</em>
<a name="17" href="#17">17</a> <em class="comment"> * distribution.</em>
<a name="18" href="#18">18</a> <em class="comment"> *</em>
<a name="19" href="#19">19</a> <em class="comment"> * 3. The end-user documentation included with the redistribution, if</em>
<a name="20" href="#20">20</a> <em class="comment"> * any, must include the following acknowlegement:</em>
<a name="21" href="#21">21</a> <em class="comment"> * "This product includes software developed by the</em>
<a name="22" href="#22">22</a> <em class="comment"> * Apache Software Foundation (<a href="http://www.apache.org/)." target="alexandria_uri">http://www.apache.org/).</a>"</em>
<a name="23" href="#23">23</a> <em class="comment"> * Alternately, this acknowlegement may appear in the software itself,</em>
<a name="24" href="#24">24</a> <em class="comment"> * if and wherever such third-party acknowlegements normally appear.</em>
<a name="25" href="#25">25</a> <em class="comment"> *</em>
<a name="26" href="#26">26</a> <em class="comment"> * 4. The names "The Jakarta Project", "Velocity", and "Apache Software</em>
<a name="27" href="#27">27</a> <em class="comment"> * Foundation" must not be used to endorse or promote products derived</em>
<a name="28" href="#28">28</a> <em class="comment"> * from this software without prior written permission. For written</em>
<a name="29" href="#29">29</a> <em class="comment"> * permission, please contact apache@apache.org.</em>
<a name="30" href="#30">30</a> <em class="comment"> *</em>
<a name="31" href="#31">31</a> <em class="comment"> * 5. Products derived from this software may not be called "Apache"</em>
<a name="32" href="#32">32</a> <em class="comment"> * nor may "Apache" appear in their names without prior written</em>
<a name="33" href="#33">33</a> <em class="comment"> * permission of the Apache Group.</em>
<a name="34" href="#34">34</a> <em class="comment"> *</em>
<a name="35" href="#35">35</a> <em class="comment"> * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED</em>
<a name="36" href="#36">36</a> <em class="comment"> * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES</em>
<a name="37" href="#37">37</a> <em class="comment"> * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE</em>
<a name="38" href="#38">38</a> <em class="comment"> * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR</em>
<a name="39" href="#39">39</a> <em class="comment"> * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</em>
<a name="40" href="#40">40</a> <em class="comment"> * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT</em>
<a name="41" href="#41">41</a> <em class="comment"> * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF</em>
<a name="42" href="#42">42</a> <em class="comment"> * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND</em>
<a name="43" href="#43">43</a> <em class="comment"> * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,</em>
<a name="44" href="#44">44</a> <em class="comment"> * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT</em>
<a name="45" href="#45">45</a> <em class="comment"> * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF</em>
<a name="46" href="#46">46</a> <em class="comment"> * SUCH DAMAGE.</em>
<a name="47" href="#47">47</a> <em class="comment"> * ====================================================================</em>
<a name="48" href="#48">48</a> <em class="comment"> *</em>
<a name="49" href="#49">49</a> <em class="comment"> * This software consists of voluntary contributions made by many</em>
<a name="50" href="#50">50</a> <em class="comment"> * individuals on behalf of the Apache Software Foundation. For more</em>
<a name="51" href="#51">51</a> <em class="comment"> * information on the Apache Software Foundation, please see</em>
<a name="52" href="#52">52</a> <em class="comment"> * <<a href="http://www.apache.org/" target="alexandria_uri">http://www.apache.org/</a>>.</em>
<a name="53" href="#53">53</a> <em class="comment"> */</em>
<a name="54" href="#54">54</a>
<a name="55" href="#55">55</a> <strong>package</strong> net.sf.navigator.displayer;
<a name="56" href="#56">56</a>
<a name="57" href="#57">57</a> <strong>import</strong> org.apache.velocity.context.InternalContextAdapter;
<a name="58" href="#58">58</a> <strong>import</strong> org.apache.velocity.runtime.parser.node.Node;
<a name="59" href="#59">59</a> <strong>import</strong> org.apache.velocity.runtime.parser.node.SimpleNode;
<a name="60" href="#60">60</a> <strong>import</strong> org.apache.velocity.runtime.directive.Directive;
<a name="61" href="#61">61</a> <strong>import</strong> org.apache.velocity.runtime.parser.ParserTreeConstants;
<a name="62" href="#62">62</a> <strong>import</strong> org.apache.velocity.exception.MethodInvocationException;
<a name="63" href="#63">63</a> <strong>import</strong> org.apache.velocity.exception.ResourceNotFoundException;
<a name="64" href="#64">64</a> <strong>import</strong> org.apache.velocity.exception.ParseErrorException;
<a name="65" href="#65">65</a>
<a name="66" href="#66">66</a> <strong>import</strong> org.apache.velocity.runtime.parser.node.ASTReference;
<a name="67" href="#67">67</a>
<a name="68" href="#68">68</a> <strong>import</strong> java.io.Writer;
<a name="69" href="#69">69</a> <strong>import</strong> java.io.IOException;
<a name="70" href="#70">70</a> <strong>import</strong> java.util.Map;
<a name="71" href="#71">71</a> <strong>import</strong> java.util.HashMap;
<a name="72" href="#72">72</a> <strong>import</strong> java.util.Iterator;
<a name="73" href="#73">73</a>
<a name="74" href="#74">74</a>
<a name="75" href="#75">75</a> <em>/**</em>
<a name="76" href="#76">76</a> <em> * Simple directive to provide ability to trap a local value for</em>
<a name="77" href="#77">77</a> <em> * iteration.</em>
<a name="78" href="#78">78</a> <em> *</em>
<a name="79" href="#79">79</a> <em> * Ex :</em>
<a name="80" href="#80">80</a> <em> *</em>
<a name="81" href="#81">81</a> <em> * #set($foo = 1)</em>
<a name="82" href="#82">82</a> <em> * $foo</em>
<a name="83" href="#83">83</a> <em> * #local($foo)</em>
<a name="84" href="#84">84</a> <em> * #set($foo = 2)</em>
<a name="85" href="#85">85</a> <em> * $foo</em>
<a name="86" href="#86">86</a> <em> * #end</em>
<a name="87" href="#87">87</a> <em> * $foo</em>
<a name="88" href="#88">88</a> <em> *</em>
<a name="89" href="#89">89</a> <em> * should output</em>
<a name="90" href="#90">90</a> <em> *</em>
<a name="91" href="#91">91</a> <em> * 1</em>
<a name="92" href="#92">92</a> <em> * 2</em>
<a name="93" href="#93">93</a> <em> * 1</em>
<a name="94" href="#94">94</a> <em> *</em>
<a name="95" href="#95">95</a> <em> * @author <a href="<a href="mailto:geirm@optonline.net" target="alexandria_uri">mailto:geirm@optonline.net</a>">Geir Magnusson Jr.</a></em>
<a name="96" href="#96">96</a> <em> * @version $Id: LocalDirective.java,v 1.1 2003/10/31 05:59:06 mraible Exp $ </em>
<a name="97" href="#97">97</a> <em> */</em>
<a name="98" href="#98">98</a> <strong>public</strong> <strong>class</strong> <a href="../../../../net/sf/navigator/displayer/LocalDirective.html">LocalDirective</a> <strong>extends</strong> Directive
<a name="99" href="#99">99</a> {
<a name="100" href="#100">100</a> <strong>public</strong> String getName()
<a name="101" href="#101">101</a> {
<a name="102" href="#102">102</a> <strong>return</strong> <span class="string">"local"</span>;
<a name="103" href="#103">103</a> }
<a name="104" href="#104">104</a>
<a name="105" href="#105">105</a> <strong>public</strong> <strong>int</strong> getType()
<a name="106" href="#106">106</a> {
<a name="107" href="#107">107</a> <strong>return</strong> BLOCK;
<a name="108" href="#108">108</a> }
<a name="109" href="#109">109</a>
<a name="110" href="#110">110</a> <strong>public</strong> <strong>boolean</strong> render(InternalContextAdapter context,
<a name="111" href="#111">111</a> Writer writer, Node node)
<a name="112" href="#112">112</a> throws IOException, MethodInvocationException, ResourceNotFoundException,
<a name="113" href="#113">113</a> ParseErrorException
<a name="114" href="#114">114</a> {
<a name="115" href="#115">115</a> Map data = <strong>new</strong> HashMap();
<a name="116" href="#116">116</a>
<a name="117" href="#117">117</a> <strong>int</strong> num = node.jjtGetNumChildren();
<a name="118" href="#118">118</a>
<a name="119" href="#119">119</a> <em class="comment">/*</em>
<a name="120" href="#120">120</a> <em class="comment"> * get the references</em>
<a name="121" href="#121">121</a> <em class="comment"> */</em>
<a name="122" href="#122">122</a>
<a name="123" href="#123">123</a> <strong>for</strong> (<strong>int</strong> i=0; i < num; i++)
<a name="124" href="#124">124</a> {
<a name="125" href="#125">125</a> SimpleNode child = (SimpleNode) node.jjtGetChild(i);
<a name="126" href="#126">126</a>
<a name="127" href="#127">127</a> <em class="comment">/*</em>
<a name="128" href="#128">128</a> <em class="comment"> * if a block, just execute</em>
<a name="129" href="#129">129</a> <em class="comment"> */</em>
<a name="130" href="#130">130</a>
<a name="131" href="#131">131</a> <strong>if</strong> (child.getType() == ParserTreeConstants.JJTBLOCK)
<a name="132" href="#132">132</a> {
<a name="133" href="#133">133</a> child.render(context, writer);
<a name="134" href="#134">134</a> <strong>break</strong>;
<a name="135" href="#135">135</a> }
<a name="136" href="#136">136</a> <strong>else</strong>
<a name="137" href="#137">137</a> {
<a name="138" href="#138">138</a> <em class="comment">/*<em class="comment"> save the values - for now, just w/ ref to test */</em></em>
<a name="139" href="#139">139</a>
<a name="140" href="#140">140</a> <strong>if</strong> (child.getType() == ParserTreeConstants.JJTREFERENCE)
<a name="141" href="#141">141</a> {
<a name="142" href="#142">142</a> data.put(child, child.execute(<strong>null</strong>, context));
<a name="143" href="#143">143</a> }
<a name="144" href="#144">144</a> <strong>else</strong>
<a name="145" href="#145">145</a> {
<a name="146" href="#146">146</a> System.out.println(<span class="string">"unhandled type"</span>);
<a name="147" href="#147">147</a> }
<a name="148" href="#148">148</a> }
<a name="149" href="#149">149</a> }
<a name="150" href="#150">150</a>
<a name="151" href="#151">151</a> Iterator it = data.keySet().iterator();
<a name="152" href="#152">152</a>
<a name="153" href="#153">153</a> <strong>while</strong>(it.hasNext())
<a name="154" href="#154">154</a> {
<a name="155" href="#155">155</a> ASTReference ref = (ASTReference) it.next();
<a name="156" href="#156">156</a>
<a name="157" href="#157">157</a> ref.setValue(context, data.get(ref));
<a name="158" href="#158">158</a> }
<a name="159" href="#159">159</a>
<a name="160" href="#160">160</a> <strong>return</strong> <strong>true</strong>;
<a name="161" href="#161">161</a> }
<a name="162" href="#162">162</a> }
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