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| <a name="1" href="#1">1</a> <strong class="jxr_keyword">package</strong> org.apache.velocity.runtime.parser.node; |
| <a name="2" href="#2">2</a> |
| <a name="3" href="#3">3</a> <em class="jxr_comment">/*</em> |
| <a name="4" href="#4">4</a> <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one</em> |
| <a name="5" href="#5">5</a> <em class="jxr_comment"> * or more contributor license agreements. See the NOTICE file</em> |
| <a name="6" href="#6">6</a> <em class="jxr_comment"> * distributed with this work for additional information</em> |
| <a name="7" href="#7">7</a> <em class="jxr_comment"> * regarding copyright ownership. The ASF licenses this file</em> |
| <a name="8" href="#8">8</a> <em class="jxr_comment"> * to you under the Apache License, Version 2.0 (the</em> |
| <a name="9" href="#9">9</a> <em class="jxr_comment"> * "License"); you may not use this file except in compliance</em> |
| <a name="10" href="#10">10</a> <em class="jxr_comment"> * with the License. You may obtain a copy of the License at</em> |
| <a name="11" href="#11">11</a> <em class="jxr_comment"> *</em> |
| <a name="12" href="#12">12</a> <em class="jxr_comment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em> |
| <a name="13" href="#13">13</a> <em class="jxr_comment"> *</em> |
| <a name="14" href="#14">14</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing,</em> |
| <a name="15" href="#15">15</a> <em class="jxr_comment"> * software distributed under the License is distributed on an</em> |
| <a name="16" href="#16">16</a> <em class="jxr_comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</em> |
| <a name="17" href="#17">17</a> <em class="jxr_comment"> * KIND, either express or implied. See the License for the</em> |
| <a name="18" href="#18">18</a> <em class="jxr_comment"> * specific language governing permissions and limitations</em> |
| <a name="19" href="#19">19</a> <em class="jxr_comment"> * under the License. </em> |
| <a name="20" href="#20">20</a> <em class="jxr_comment"> */</em> |
| <a name="21" href="#21">21</a> |
| <a name="22" href="#22">22</a> <strong class="jxr_keyword">import</strong> java.io.IOException; |
| <a name="23" href="#23">23</a> <strong class="jxr_keyword">import</strong> java.io.Writer; |
| <a name="24" href="#24">24</a> <strong class="jxr_keyword">import</strong> java.lang.reflect.InvocationTargetException; |
| <a name="25" href="#25">25</a> |
| <a name="26" href="#26">26</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.app.event.EventHandlerUtil; |
| <a name="27" href="#27">27</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.context.Context; |
| <a name="28" href="#28">28</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.context.InternalContextAdapter; |
| <a name="29" href="#29">29</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.exception.MethodInvocationException; |
| <a name="30" href="#30">30</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.exception.TemplateInitException; |
| <a name="31" href="#31">31</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.runtime.RuntimeConstants; |
| <a name="32" href="#32">32</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.runtime.parser.Parser; |
| <a name="33" href="#33">33</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.runtime.parser.ParserVisitor; |
| <a name="34" href="#34">34</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.runtime.parser.Token; |
| <a name="35" href="#35">35</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.util.introspection.Info; |
| <a name="36" href="#36">36</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.util.introspection.VelPropertySet; |
| <a name="37" href="#37">37</a> |
| <a name="38" href="#38">38</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="39" href="#39">39</a> <em class="jxr_javadoccomment"> * This class is responsible for handling the references in</em> |
| <a name="40" href="#40">40</a> <em class="jxr_javadoccomment"> * VTL ($foo).</em> |
| <a name="41" href="#41">41</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="42" href="#42">42</a> <em class="jxr_javadoccomment"> * Please look at the Parser.jjt file which is</em> |
| <a name="43" href="#43">43</a> <em class="jxr_javadoccomment"> * what controls the generation of this class.</em> |
| <a name="44" href="#44">44</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="45" href="#45">45</a> <em class="jxr_javadoccomment"> * @author <a href="<a href="mailto:jvanzyl@apache.org" target="alexandria_uri">mailto:jvanzyl@apache.org</a>">Jason van Zyl</a></em> |
| <a name="46" href="#46">46</a> <em class="jxr_javadoccomment"> * @author <a href="<a href="mailto:geirm@optonline.net" target="alexandria_uri">mailto:geirm@optonline.net</a>">Geir Magnusson Jr.</a></em> |
| <a name="47" href="#47">47</a> <em class="jxr_javadoccomment"> * @author <a href="<a href="mailto:Christoph.Reck@dlr.de" target="alexandria_uri">mailto:Christoph.Reck@dlr.de</a>">Christoph Reck</a></em> |
| <a name="48" href="#48">48</a> <em class="jxr_javadoccomment"> * @author <a href="<a href="mailto:kjohnson@transparent.com>Kent" target="alexandria_uri">mailto:kjohnson@transparent.com>Kent</a> Johnson</a></em> |
| <a name="49" href="#49">49</a> <em class="jxr_javadoccomment"> * @version $Id: ASTReference.java 471381 2006-11-05 08:56:58Z wglass $</em> |
| <a name="50" href="#50">50</a> <em class="jxr_javadoccomment">*/</em> |
| <a name="51" href="#51">51</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/velocity/runtime/parser/node/ASTReference.html">ASTReference</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../../org/apache/velocity/runtime/parser/node/SimpleNode.html">SimpleNode</a> |
| <a name="52" href="#52">52</a> { |
| <a name="53" href="#53">53</a> <em class="jxr_comment">/*<em class="jxr_comment"> Reference types */</em></em> |
| <a name="54" href="#54">54</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> NORMAL_REFERENCE = 1; |
| <a name="55" href="#55">55</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> FORMAL_REFERENCE = 2; |
| <a name="56" href="#56">56</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> QUIET_REFERENCE = 3; |
| <a name="57" href="#57">57</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> RUNT = 4; |
| <a name="58" href="#58">58</a> |
| <a name="59" href="#59">59</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> referenceType; |
| <a name="60" href="#60">60</a> <strong class="jxr_keyword">private</strong> String nullString; |
| <a name="61" href="#61">61</a> <strong class="jxr_keyword">private</strong> String rootString; |
| <a name="62" href="#62">62</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> escaped = false; |
| <a name="63" href="#63">63</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> computableReference = <strong class="jxr_keyword">true</strong>; |
| <a name="64" href="#64">64</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> logOnNull = <strong class="jxr_keyword">true</strong>; |
| <a name="65" href="#65">65</a> <strong class="jxr_keyword">private</strong> String escPrefix = <span class="jxr_string">""</span>; |
| <a name="66" href="#66">66</a> <strong class="jxr_keyword">private</strong> String morePrefix = <span class="jxr_string">""</span>; |
| <a name="67" href="#67">67</a> <strong class="jxr_keyword">private</strong> String identifier = <span class="jxr_string">""</span>; |
| <a name="68" href="#68">68</a> |
| <a name="69" href="#69">69</a> <strong class="jxr_keyword">private</strong> String literal = <strong class="jxr_keyword">null</strong>; |
| <a name="70" href="#70">70</a> |
| <a name="71" href="#71">71</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> numChildren = 0; |
| <a name="72" href="#72">72</a> |
| <a name="73" href="#73">73</a> <strong class="jxr_keyword">protected</strong> <a href="../../../../../../org/apache/velocity/util/introspection/Info.html">Info</a> uberInfo; |
| <a name="74" href="#74">74</a> |
| <a name="75" href="#75">75</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="76" href="#76">76</a> <em class="jxr_javadoccomment"> * @param id</em> |
| <a name="77" href="#77">77</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="78" href="#78">78</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/velocity/runtime/parser/node/ASTReference.html">ASTReference</a>(<strong class="jxr_keyword">int</strong> id) |
| <a name="79" href="#79">79</a> { |
| <a name="80" href="#80">80</a> <strong class="jxr_keyword">super</strong>(id); |
| <a name="81" href="#81">81</a> } |
| <a name="82" href="#82">82</a> |
| <a name="83" href="#83">83</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="84" href="#84">84</a> <em class="jxr_javadoccomment"> * @param p</em> |
| <a name="85" href="#85">85</a> <em class="jxr_javadoccomment"> * @param id</em> |
| <a name="86" href="#86">86</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="87" href="#87">87</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/velocity/runtime/parser/node/ASTReference.html">ASTReference</a>(<a href="../../../../../../org/apache/velocity/runtime/parser/Parser.html">Parser</a> p, <strong class="jxr_keyword">int</strong> id) |
| <a name="88" href="#88">88</a> { |
| <a name="89" href="#89">89</a> <strong class="jxr_keyword">super</strong>(p, id); |
| <a name="90" href="#90">90</a> } |
| <a name="91" href="#91">91</a> |
| <a name="92" href="#92">92</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="93" href="#93">93</a> <em class="jxr_javadoccomment"> * @see org.apache.velocity.runtime.parser.node.SimpleNode#jjtAccept(org.apache.velocity.runtime.parser.ParserVisitor, java.lang.Object)</em> |
| <a name="94" href="#94">94</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="95" href="#95">95</a> <strong class="jxr_keyword">public</strong> Object jjtAccept(<a href="../../../../../../org/apache/velocity/runtime/parser/ParserVisitor.html">ParserVisitor</a> visitor, Object data) |
| <a name="96" href="#96">96</a> { |
| <a name="97" href="#97">97</a> <strong class="jxr_keyword">return</strong> visitor.visit(<strong class="jxr_keyword">this</strong>, data); |
| <a name="98" href="#98">98</a> } |
| <a name="99" href="#99">99</a> |
| <a name="100" href="#100">100</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="101" href="#101">101</a> <em class="jxr_javadoccomment"> * @see org.apache.velocity.runtime.parser.node.SimpleNode#init(org.apache.velocity.context.InternalContextAdapter, java.lang.Object)</em> |
| <a name="102" href="#102">102</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="103" href="#103">103</a> <strong class="jxr_keyword">public</strong> Object init(<a href="../../../../../../org/apache/velocity/context/InternalContextAdapter.html">InternalContextAdapter</a> context, Object data) |
| <a name="104" href="#104">104</a> <strong class="jxr_keyword">throws</strong> <a href="../../../../../../org/apache/velocity/exception/TemplateInitException.html">TemplateInitException</a> |
| <a name="105" href="#105">105</a> { |
| <a name="106" href="#106">106</a> <em class="jxr_comment">/*</em> |
| <a name="107" href="#107">107</a> <em class="jxr_comment"> * init our children</em> |
| <a name="108" href="#108">108</a> <em class="jxr_comment"> */</em> |
| <a name="109" href="#109">109</a> |
| <a name="110" href="#110">110</a> <strong class="jxr_keyword">super</strong>.init(context, data); |
| <a name="111" href="#111">111</a> |
| <a name="112" href="#112">112</a> <em class="jxr_comment">/*</em> |
| <a name="113" href="#113">113</a> <em class="jxr_comment"> * the only thing we can do in init() is getRoot()</em> |
| <a name="114" href="#114">114</a> <em class="jxr_comment"> * as that is template based, not context based,</em> |
| <a name="115" href="#115">115</a> <em class="jxr_comment"> * so it's thread- and context-safe</em> |
| <a name="116" href="#116">116</a> <em class="jxr_comment"> */</em> |
| <a name="117" href="#117">117</a> |
| <a name="118" href="#118">118</a> rootString = getRoot(); |
| <a name="119" href="#119">119</a> |
| <a name="120" href="#120">120</a> numChildren = jjtGetNumChildren(); |
| <a name="121" href="#121">121</a> |
| <a name="122" href="#122">122</a> <em class="jxr_comment">/*</em> |
| <a name="123" href="#123">123</a> <em class="jxr_comment"> * and if appropriate...</em> |
| <a name="124" href="#124">124</a> <em class="jxr_comment"> */</em> |
| <a name="125" href="#125">125</a> |
| <a name="126" href="#126">126</a> <strong class="jxr_keyword">if</strong> (numChildren > 0 ) |
| <a name="127" href="#127">127</a> { |
| <a name="128" href="#128">128</a> identifier = jjtGetChild(numChildren - 1).getFirstToken().image; |
| <a name="129" href="#129">129</a> } |
| <a name="130" href="#130">130</a> |
| <a name="131" href="#131">131</a> <em class="jxr_comment">/*</em> |
| <a name="132" href="#132">132</a> <em class="jxr_comment"> * make an uberinfo - saves new's later on</em> |
| <a name="133" href="#133">133</a> <em class="jxr_comment"> */</em> |
| <a name="134" href="#134">134</a> |
| <a name="135" href="#135">135</a> uberInfo = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/velocity/util/introspection/Info.html">Info</a>(context.getCurrentTemplateName(), |
| <a name="136" href="#136">136</a> getLine(),getColumn()); |
| <a name="137" href="#137">137</a> |
| <a name="138" href="#138">138</a> <em class="jxr_comment">/*</em> |
| <a name="139" href="#139">139</a> <em class="jxr_comment"> * track whether we log invalid references</em> |
| <a name="140" href="#140">140</a> <em class="jxr_comment"> */</em> |
| <a name="141" href="#141">141</a> logOnNull = |
| <a name="142" href="#142">142</a> rsvc.getBoolean(RuntimeConstants.RUNTIME_LOG_REFERENCE_LOG_INVALID, <strong class="jxr_keyword">true</strong>); |
| <a name="143" href="#143">143</a> |
| <a name="144" href="#144">144</a> <strong class="jxr_keyword">return</strong> data; |
| <a name="145" href="#145">145</a> } |
| <a name="146" href="#146">146</a> |
| <a name="147" href="#147">147</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="148" href="#148">148</a> <em class="jxr_javadoccomment"> * Returns the 'root string', the reference key</em> |
| <a name="149" href="#149">149</a> <em class="jxr_javadoccomment"> * @return the root string.</em> |
| <a name="150" href="#150">150</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="151" href="#151">151</a> <strong class="jxr_keyword">public</strong> String getRootString() |
| <a name="152" href="#152">152</a> { |
| <a name="153" href="#153">153</a> <strong class="jxr_keyword">return</strong> rootString; |
| <a name="154" href="#154">154</a> } |
| <a name="155" href="#155">155</a> |
| <a name="156" href="#156">156</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="157" href="#157">157</a> <em class="jxr_javadoccomment"> * gets an Object that 'is' the value of the reference</em> |
| <a name="158" href="#158">158</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="159" href="#159">159</a> <em class="jxr_javadoccomment"> * @param o unused Object parameter</em> |
| <a name="160" href="#160">160</a> <em class="jxr_javadoccomment"> * @param context context used to generate value</em> |
| <a name="161" href="#161">161</a> <em class="jxr_javadoccomment"> * @return The execution result.</em> |
| <a name="162" href="#162">162</a> <em class="jxr_javadoccomment"> * @throws MethodInvocationException</em> |
| <a name="163" href="#163">163</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="164" href="#164">164</a> <strong class="jxr_keyword">public</strong> Object execute(Object o, <a href="../../../../../../org/apache/velocity/context/InternalContextAdapter.html">InternalContextAdapter</a> context) |
| <a name="165" href="#165">165</a> <strong class="jxr_keyword">throws</strong> <a href="../../../../../../org/apache/velocity/exception/MethodInvocationException.html">MethodInvocationException</a> |
| <a name="166" href="#166">166</a> { |
| <a name="167" href="#167">167</a> |
| <a name="168" href="#168">168</a> <strong class="jxr_keyword">if</strong> (referenceType == RUNT) |
| <a name="169" href="#169">169</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>; |
| <a name="170" href="#170">170</a> |
| <a name="171" href="#171">171</a> <em class="jxr_comment">/*</em> |
| <a name="172" href="#172">172</a> <em class="jxr_comment"> * get the root object from the context</em> |
| <a name="173" href="#173">173</a> <em class="jxr_comment"> */</em> |
| <a name="174" href="#174">174</a> |
| <a name="175" href="#175">175</a> Object result = getVariableValue(context, rootString); |
| <a name="176" href="#176">176</a> |
| <a name="177" href="#177">177</a> <strong class="jxr_keyword">if</strong> (result == <strong class="jxr_keyword">null</strong>) |
| <a name="178" href="#178">178</a> { |
| <a name="179" href="#179">179</a> <strong class="jxr_keyword">return</strong> EventHandlerUtil.invalidGetMethod(rsvc, context, |
| <a name="180" href="#180">180</a> <span class="jxr_string">"$"</span> + rootString, <strong class="jxr_keyword">null</strong>, <strong class="jxr_keyword">null</strong>, uberInfo); |
| <a name="181" href="#181">181</a> } |
| <a name="182" href="#182">182</a> |
| <a name="183" href="#183">183</a> <em class="jxr_comment">/*</em> |
| <a name="184" href="#184">184</a> <em class="jxr_comment"> * Iteratively work 'down' (it's flat...) the reference</em> |
| <a name="185" href="#185">185</a> <em class="jxr_comment"> * to get the value, but check to make sure that</em> |
| <a name="186" href="#186">186</a> <em class="jxr_comment"> * every result along the path is valid. For example:</em> |
| <a name="187" href="#187">187</a> <em class="jxr_comment"> *</em> |
| <a name="188" href="#188">188</a> <em class="jxr_comment"> * $hashtable.Customer.Name</em> |
| <a name="189" href="#189">189</a> <em class="jxr_comment"> *</em> |
| <a name="190" href="#190">190</a> <em class="jxr_comment"> * The $hashtable may be valid, but there is no key</em> |
| <a name="191" href="#191">191</a> <em class="jxr_comment"> * 'Customer' in the hashtable so we want to stop</em> |
| <a name="192" href="#192">192</a> <em class="jxr_comment"> * when we find a null value and return the null</em> |
| <a name="193" href="#193">193</a> <em class="jxr_comment"> * so the error gets logged.</em> |
| <a name="194" href="#194">194</a> <em class="jxr_comment"> */</em> |
| <a name="195" href="#195">195</a> |
| <a name="196" href="#196">196</a> <strong class="jxr_keyword">try</strong> |
| <a name="197" href="#197">197</a> { |
| <a name="198" href="#198">198</a> Object previousResult = result; |
| <a name="199" href="#199">199</a> <strong class="jxr_keyword">int</strong> failedChild = -1; |
| <a name="200" href="#200">200</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < numChildren; i++) |
| <a name="201" href="#201">201</a> { |
| <a name="202" href="#202">202</a> previousResult = result; |
| <a name="203" href="#203">203</a> result = jjtGetChild(i).execute(result,context); |
| <a name="204" href="#204">204</a> <strong class="jxr_keyword">if</strong> (result == <strong class="jxr_keyword">null</strong>) |
| <a name="205" href="#205">205</a> { |
| <a name="206" href="#206">206</a> failedChild = i; |
| <a name="207" href="#207">207</a> <strong class="jxr_keyword">break</strong>; |
| <a name="208" href="#208">208</a> } |
| <a name="209" href="#209">209</a> } |
| <a name="210" href="#210">210</a> |
| <a name="211" href="#211">211</a> <strong class="jxr_keyword">if</strong> (result == <strong class="jxr_keyword">null</strong>) |
| <a name="212" href="#212">212</a> { |
| <a name="213" href="#213">213</a> <strong class="jxr_keyword">if</strong> (failedChild == -1) |
| <a name="214" href="#214">214</a> { |
| <a name="215" href="#215">215</a> result = EventHandlerUtil.invalidGetMethod(rsvc, context, |
| <a name="216" href="#216">216</a> <span class="jxr_string">"$"</span> + rootString, previousResult, <strong class="jxr_keyword">null</strong>, uberInfo); |
| <a name="217" href="#217">217</a> } |
| <a name="218" href="#218">218</a> <strong class="jxr_keyword">else</strong> |
| <a name="219" href="#219">219</a> { |
| <a name="220" href="#220">220</a> StringBuffer name = <strong class="jxr_keyword">new</strong> StringBuffer(<span class="jxr_string">"$"</span>).append(rootString); |
| <a name="221" href="#221">221</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i <= failedChild; i++) |
| <a name="222" href="#222">222</a> { |
| <a name="223" href="#223">223</a> <a href="../../../../../../org/apache/velocity/runtime/parser/node/Node.html">Node</a> node = jjtGetChild(i); |
| <a name="224" href="#224">224</a> <strong class="jxr_keyword">if</strong> (node instanceof ASTMethod) |
| <a name="225" href="#225">225</a> { |
| <a name="226" href="#226">226</a> name.append(<span class="jxr_string">"."</span>).append(((ASTMethod) node).getMethodName()).append(<span class="jxr_string">"()"</span>); |
| <a name="227" href="#227">227</a> } |
| <a name="228" href="#228">228</a> <strong class="jxr_keyword">else</strong> |
| <a name="229" href="#229">229</a> { |
| <a name="230" href="#230">230</a> name.append(<span class="jxr_string">"."</span>).append(node.getFirstToken().image); |
| <a name="231" href="#231">231</a> } |
| <a name="232" href="#232">232</a> } |
| <a name="233" href="#233">233</a> |
| <a name="234" href="#234">234</a> <strong class="jxr_keyword">if</strong> (jjtGetChild(failedChild) instanceof ASTMethod) |
| <a name="235" href="#235">235</a> { |
| <a name="236" href="#236">236</a> String methodName = ((ASTMethod) jjtGetChild(failedChild)).getMethodName(); |
| <a name="237" href="#237">237</a> result = EventHandlerUtil.invalidMethod(rsvc, context, |
| <a name="238" href="#238">238</a> name.toString(), previousResult, methodName, uberInfo); |
| <a name="239" href="#239">239</a> } |
| <a name="240" href="#240">240</a> <strong class="jxr_keyword">else</strong> |
| <a name="241" href="#241">241</a> { |
| <a name="242" href="#242">242</a> String property = jjtGetChild(failedChild).getFirstToken().image; |
| <a name="243" href="#243">243</a> result = EventHandlerUtil.invalidGetMethod(rsvc, context, |
| <a name="244" href="#244">244</a> name.toString(), previousResult, property, uberInfo); |
| <a name="245" href="#245">245</a> } |
| <a name="246" href="#246">246</a> } |
| <a name="247" href="#247">247</a> |
| <a name="248" href="#248">248</a> } |
| <a name="249" href="#249">249</a> |
| <a name="250" href="#250">250</a> <strong class="jxr_keyword">return</strong> result; |
| <a name="251" href="#251">251</a> } |
| <a name="252" href="#252">252</a> <strong class="jxr_keyword">catch</strong>(<a href="../../../../../../org/apache/velocity/exception/MethodInvocationException.html">MethodInvocationException</a> mie) |
| <a name="253" href="#253">253</a> { |
| <a name="254" href="#254">254</a> <em class="jxr_comment">/*</em> |
| <a name="255" href="#255">255</a> <em class="jxr_comment"> * someone tossed their cookies</em> |
| <a name="256" href="#256">256</a> <em class="jxr_comment"> */</em> |
| <a name="257" href="#257">257</a> |
| <a name="258" href="#258">258</a> log.error(<span class="jxr_string">"Method "</span> + mie.getMethodName() |
| <a name="259" href="#259">259</a> + <span class="jxr_string">" threw exception for reference $"</span> |
| <a name="260" href="#260">260</a> + rootString |
| <a name="261" href="#261">261</a> + <span class="jxr_string">" in template "</span> + context.getCurrentTemplateName() |
| <a name="262" href="#262">262</a> + <span class="jxr_string">" at "</span> + <span class="jxr_string">" ["</span> + <strong class="jxr_keyword">this</strong>.getLine() + <span class="jxr_string">","</span> |
| <a name="263" href="#263">263</a> + <strong class="jxr_keyword">this</strong>.getColumn() + <span class="jxr_string">"]"</span>); |
| <a name="264" href="#264">264</a> |
| <a name="265" href="#265">265</a> mie.setReferenceName(rootString); |
| <a name="266" href="#266">266</a> <strong class="jxr_keyword">throw</strong> mie; |
| <a name="267" href="#267">267</a> } |
| <a name="268" href="#268">268</a> } |
| <a name="269" href="#269">269</a> |
| <a name="270" href="#270">270</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="271" href="#271">271</a> <em class="jxr_javadoccomment"> * gets the value of the reference and outputs it to the</em> |
| <a name="272" href="#272">272</a> <em class="jxr_javadoccomment"> * writer.</em> |
| <a name="273" href="#273">273</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="274" href="#274">274</a> <em class="jxr_javadoccomment"> * @param context context of data to use in getting value</em> |
| <a name="275" href="#275">275</a> <em class="jxr_javadoccomment"> * @param writer writer to render to</em> |
| <a name="276" href="#276">276</a> <em class="jxr_javadoccomment"> * @return True if rendering was successful.</em> |
| <a name="277" href="#277">277</a> <em class="jxr_javadoccomment"> * @throws IOException</em> |
| <a name="278" href="#278">278</a> <em class="jxr_javadoccomment"> * @throws MethodInvocationException</em> |
| <a name="279" href="#279">279</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="280" href="#280">280</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> render(<a href="../../../../../../org/apache/velocity/context/InternalContextAdapter.html">InternalContextAdapter</a> context, Writer writer) |
| <a name="281" href="#281">281</a> <strong class="jxr_keyword">throws</strong> IOException, <a href="../../../../../../org/apache/velocity/exception/MethodInvocationException.html">MethodInvocationException</a> |
| <a name="282" href="#282">282</a> { |
| <a name="283" href="#283">283</a> |
| <a name="284" href="#284">284</a> <strong class="jxr_keyword">if</strong> (referenceType == RUNT) |
| <a name="285" href="#285">285</a> { |
| <a name="286" href="#286">286</a> <strong class="jxr_keyword">if</strong> (context.getAllowRendering()) |
| <a name="287" href="#287">287</a> { |
| <a name="288" href="#288">288</a> writer.write(rootString); |
| <a name="289" href="#289">289</a> } |
| <a name="290" href="#290">290</a> |
| <a name="291" href="#291">291</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>; |
| <a name="292" href="#292">292</a> } |
| <a name="293" href="#293">293</a> |
| <a name="294" href="#294">294</a> Object value = execute(<strong class="jxr_keyword">null</strong>, context); |
| <a name="295" href="#295">295</a> |
| <a name="296" href="#296">296</a> <em class="jxr_comment">/*</em> |
| <a name="297" href="#297">297</a> <em class="jxr_comment"> * if this reference is escaped (\$foo) then we want to do one of two things :</em> |
| <a name="298" href="#298">298</a> <em class="jxr_comment"> * 1) if this is a reference in the context, then we want to print $foo</em> |
| <a name="299" href="#299">299</a> <em class="jxr_comment"> * 2) if not, then \$foo (its considered schmoo, not VTL)</em> |
| <a name="300" href="#300">300</a> <em class="jxr_comment"> */</em> |
| <a name="301" href="#301">301</a> |
| <a name="302" href="#302">302</a> <strong class="jxr_keyword">if</strong> (escaped) |
| <a name="303" href="#303">303</a> { |
| <a name="304" href="#304">304</a> <strong class="jxr_keyword">if</strong> (value == <strong class="jxr_keyword">null</strong>) |
| <a name="305" href="#305">305</a> { |
| <a name="306" href="#306">306</a> <strong class="jxr_keyword">if</strong> (context.getAllowRendering()) |
| <a name="307" href="#307">307</a> { |
| <a name="308" href="#308">308</a> writer.write(escPrefix); |
| <a name="309" href="#309">309</a> writer.write(<span class="jxr_string">"\\"</span>); |
| <a name="310" href="#310">310</a> writer.write(nullString); |
| <a name="311" href="#311">311</a> } |
| <a name="312" href="#312">312</a> } |
| <a name="313" href="#313">313</a> <strong class="jxr_keyword">else</strong> |
| <a name="314" href="#314">314</a> { |
| <a name="315" href="#315">315</a> <strong class="jxr_keyword">if</strong> (context.getAllowRendering()) |
| <a name="316" href="#316">316</a> { |
| <a name="317" href="#317">317</a> writer.write(escPrefix); |
| <a name="318" href="#318">318</a> writer.write(nullString); |
| <a name="319" href="#319">319</a> } |
| <a name="320" href="#320">320</a> } |
| <a name="321" href="#321">321</a> |
| <a name="322" href="#322">322</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>; |
| <a name="323" href="#323">323</a> } |
| <a name="324" href="#324">324</a> |
| <a name="325" href="#325">325</a> <em class="jxr_comment">/*</em> |
| <a name="326" href="#326">326</a> <em class="jxr_comment"> * the normal processing</em> |
| <a name="327" href="#327">327</a> <em class="jxr_comment"> *</em> |
| <a name="328" href="#328">328</a> <em class="jxr_comment"> * if we have an event cartridge, get a new value object</em> |
| <a name="329" href="#329">329</a> <em class="jxr_comment"> */</em> |
| <a name="330" href="#330">330</a> |
| <a name="331" href="#331">331</a> value = EventHandlerUtil.referenceInsert(rsvc, context, literal(), value); |
| <a name="332" href="#332">332</a> |
| <a name="333" href="#333">333</a> String toString = <strong class="jxr_keyword">null</strong>; |
| <a name="334" href="#334">334</a> <strong class="jxr_keyword">if</strong> (value != <strong class="jxr_keyword">null</strong>) |
| <a name="335" href="#335">335</a> { |
| <a name="336" href="#336">336</a> toString = value.toString(); |
| <a name="337" href="#337">337</a> } |
| <a name="338" href="#338">338</a> |
| <a name="339" href="#339">339</a> |
| <a name="340" href="#340">340</a> <em class="jxr_comment">/*</em> |
| <a name="341" href="#341">341</a> <em class="jxr_comment"> * if value is null...</em> |
| <a name="342" href="#342">342</a> <em class="jxr_comment"> */</em> |
| <a name="343" href="#343">343</a> |
| <a name="344" href="#344">344</a> <strong class="jxr_keyword">if</strong> ( value == <strong class="jxr_keyword">null</strong> || toString == <strong class="jxr_keyword">null</strong>) |
| <a name="345" href="#345">345</a> { |
| <a name="346" href="#346">346</a> <em class="jxr_comment">/*</em> |
| <a name="347" href="#347">347</a> <em class="jxr_comment"> * write prefix twice, because it's schmoo, so the \ don't escape each other...</em> |
| <a name="348" href="#348">348</a> <em class="jxr_comment"> */</em> |
| <a name="349" href="#349">349</a> |
| <a name="350" href="#350">350</a> <strong class="jxr_keyword">if</strong> (context.getAllowRendering()) |
| <a name="351" href="#351">351</a> { |
| <a name="352" href="#352">352</a> writer.write(escPrefix); |
| <a name="353" href="#353">353</a> writer.write(escPrefix); |
| <a name="354" href="#354">354</a> writer.write(morePrefix); |
| <a name="355" href="#355">355</a> writer.write(nullString); |
| <a name="356" href="#356">356</a> } |
| <a name="357" href="#357">357</a> |
| <a name="358" href="#358">358</a> <strong class="jxr_keyword">if</strong> (logOnNull && referenceType != QUIET_REFERENCE && log.isInfoEnabled()) |
| <a name="359" href="#359">359</a> { |
| <a name="360" href="#360">360</a> log.info(<span class="jxr_string">"Null reference [template '"</span> |
| <a name="361" href="#361">361</a> + context.getCurrentTemplateName() + <span class="jxr_string">"', line "</span> |
| <a name="362" href="#362">362</a> + <strong class="jxr_keyword">this</strong>.getLine() + <span class="jxr_string">", column "</span> + <strong class="jxr_keyword">this</strong>.getColumn() |
| <a name="363" href="#363">363</a> + <span class="jxr_string">"] : "</span> + <strong class="jxr_keyword">this</strong>.literal() + <span class="jxr_string">" cannot be resolved."</span>); |
| <a name="364" href="#364">364</a> } |
| <a name="365" href="#365">365</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>; |
| <a name="366" href="#366">366</a> } |
| <a name="367" href="#367">367</a> <strong class="jxr_keyword">else</strong> |
| <a name="368" href="#368">368</a> { |
| <a name="369" href="#369">369</a> <em class="jxr_comment">/*</em> |
| <a name="370" href="#370">370</a> <em class="jxr_comment"> * non-null processing</em> |
| <a name="371" href="#371">371</a> <em class="jxr_comment"> */</em> |
| <a name="372" href="#372">372</a> |
| <a name="373" href="#373">373</a> <strong class="jxr_keyword">if</strong> (context.getAllowRendering()) |
| <a name="374" href="#374">374</a> { |
| <a name="375" href="#375">375</a> writer.write(escPrefix); |
| <a name="376" href="#376">376</a> writer.write(morePrefix); |
| <a name="377" href="#377">377</a> writer.write(toString); |
| <a name="378" href="#378">378</a> } |
| <a name="379" href="#379">379</a> |
| <a name="380" href="#380">380</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>; |
| <a name="381" href="#381">381</a> } |
| <a name="382" href="#382">382</a> } |
| <a name="383" href="#383">383</a> |
| <a name="384" href="#384">384</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="385" href="#385">385</a> <em class="jxr_javadoccomment"> * Computes boolean value of this reference</em> |
| <a name="386" href="#386">386</a> <em class="jxr_javadoccomment"> * Returns the actual value of reference return type</em> |
| <a name="387" href="#387">387</a> <em class="jxr_javadoccomment"> * boolean, and 'true' if value is not null</em> |
| <a name="388" href="#388">388</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="389" href="#389">389</a> <em class="jxr_javadoccomment"> * @param context context to compute value with</em> |
| <a name="390" href="#390">390</a> <em class="jxr_javadoccomment"> * @return True if evaluation was ok.</em> |
| <a name="391" href="#391">391</a> <em class="jxr_javadoccomment"> * @throws MethodInvocationException</em> |
| <a name="392" href="#392">392</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="393" href="#393">393</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> evaluate(<a href="../../../../../../org/apache/velocity/context/InternalContextAdapter.html">InternalContextAdapter</a> context) |
| <a name="394" href="#394">394</a> <strong class="jxr_keyword">throws</strong> <a href="../../../../../../org/apache/velocity/exception/MethodInvocationException.html">MethodInvocationException</a> |
| <a name="395" href="#395">395</a> { |
| <a name="396" href="#396">396</a> Object value = execute(<strong class="jxr_keyword">null</strong>, context); |
| <a name="397" href="#397">397</a> |
| <a name="398" href="#398">398</a> <strong class="jxr_keyword">if</strong> (value == <strong class="jxr_keyword">null</strong>) |
| <a name="399" href="#399">399</a> { |
| <a name="400" href="#400">400</a> <strong class="jxr_keyword">return</strong> false; |
| <a name="401" href="#401">401</a> } |
| <a name="402" href="#402">402</a> <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (value instanceof Boolean) |
| <a name="403" href="#403">403</a> { |
| <a name="404" href="#404">404</a> <strong class="jxr_keyword">if</strong> (((Boolean) value).booleanValue()) |
| <a name="405" href="#405">405</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>; |
| <a name="406" href="#406">406</a> <strong class="jxr_keyword">else</strong> |
| <a name="407" href="#407">407</a> <strong class="jxr_keyword">return</strong> false; |
| <a name="408" href="#408">408</a> } |
| <a name="409" href="#409">409</a> <strong class="jxr_keyword">else</strong> |
| <a name="410" href="#410">410</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>; |
| <a name="411" href="#411">411</a> } |
| <a name="412" href="#412">412</a> |
| <a name="413" href="#413">413</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="414" href="#414">414</a> <em class="jxr_javadoccomment"> * @see org.apache.velocity.runtime.parser.node.SimpleNode#value(org.apache.velocity.context.InternalContextAdapter)</em> |
| <a name="415" href="#415">415</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="416" href="#416">416</a> <strong class="jxr_keyword">public</strong> Object value(<a href="../../../../../../org/apache/velocity/context/InternalContextAdapter.html">InternalContextAdapter</a> context) |
| <a name="417" href="#417">417</a> <strong class="jxr_keyword">throws</strong> <a href="../../../../../../org/apache/velocity/exception/MethodInvocationException.html">MethodInvocationException</a> |
| <a name="418" href="#418">418</a> { |
| <a name="419" href="#419">419</a> <strong class="jxr_keyword">return</strong> (computableReference ? execute(<strong class="jxr_keyword">null</strong>, context) : <strong class="jxr_keyword">null</strong>); |
| <a name="420" href="#420">420</a> } |
| <a name="421" href="#421">421</a> |
| <a name="422" href="#422">422</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="423" href="#423">423</a> <em class="jxr_javadoccomment"> * Sets the value of a complex reference (something like $foo.bar)</em> |
| <a name="424" href="#424">424</a> <em class="jxr_javadoccomment"> * Currently used by ASTSetReference()</em> |
| <a name="425" href="#425">425</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="426" href="#426">426</a> <em class="jxr_javadoccomment"> * @see ASTSetDirective</em> |
| <a name="427" href="#427">427</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="428" href="#428">428</a> <em class="jxr_javadoccomment"> * @param context context object containing this reference</em> |
| <a name="429" href="#429">429</a> <em class="jxr_javadoccomment"> * @param value Object to set as value</em> |
| <a name="430" href="#430">430</a> <em class="jxr_javadoccomment"> * @return true if successful, false otherwise</em> |
| <a name="431" href="#431">431</a> <em class="jxr_javadoccomment"> * @throws MethodInvocationException</em> |
| <a name="432" href="#432">432</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="433" href="#433">433</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> setValue( InternalContextAdapter context, Object value) |
| <a name="434" href="#434">434</a> <strong class="jxr_keyword">throws</strong> <a href="../../../../../../org/apache/velocity/exception/MethodInvocationException.html">MethodInvocationException</a> |
| <a name="435" href="#435">435</a> { |
| <a name="436" href="#436">436</a> <strong class="jxr_keyword">if</strong> (jjtGetNumChildren() == 0) |
| <a name="437" href="#437">437</a> { |
| <a name="438" href="#438">438</a> context.put(rootString, value); |
| <a name="439" href="#439">439</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>; |
| <a name="440" href="#440">440</a> } |
| <a name="441" href="#441">441</a> |
| <a name="442" href="#442">442</a> <em class="jxr_comment">/*</em> |
| <a name="443" href="#443">443</a> <em class="jxr_comment"> * The rootOfIntrospection is the object we will</em> |
| <a name="444" href="#444">444</a> <em class="jxr_comment"> * retrieve from the Context. This is the base</em> |
| <a name="445" href="#445">445</a> <em class="jxr_comment"> * object we will apply reflection to.</em> |
| <a name="446" href="#446">446</a> <em class="jxr_comment"> */</em> |
| <a name="447" href="#447">447</a> |
| <a name="448" href="#448">448</a> Object result = getVariableValue(context, rootString); |
| <a name="449" href="#449">449</a> |
| <a name="450" href="#450">450</a> <strong class="jxr_keyword">if</strong> (result == <strong class="jxr_keyword">null</strong>) |
| <a name="451" href="#451">451</a> { |
| <a name="452" href="#452">452</a> String msg = <span class="jxr_string">"reference set : template = "</span> |
| <a name="453" href="#453">453</a> + context.getCurrentTemplateName() + |
| <a name="454" href="#454">454</a> <span class="jxr_string">" [line "</span> + getLine() + <span class="jxr_string">",column "</span> + |
| <a name="455" href="#455">455</a> getColumn() + <span class="jxr_string">"] : "</span> + literal() + |
| <a name="456" href="#456">456</a> <span class="jxr_string">" is not a valid reference."</span>; |
| <a name="457" href="#457">457</a> |
| <a name="458" href="#458">458</a> log.error(msg); |
| <a name="459" href="#459">459</a> <strong class="jxr_keyword">return</strong> false; |
| <a name="460" href="#460">460</a> } |
| <a name="461" href="#461">461</a> |
| <a name="462" href="#462">462</a> <em class="jxr_comment">/*</em> |
| <a name="463" href="#463">463</a> <em class="jxr_comment"> * How many child nodes do we have?</em> |
| <a name="464" href="#464">464</a> <em class="jxr_comment"> */</em> |
| <a name="465" href="#465">465</a> |
| <a name="466" href="#466">466</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < numChildren - 1; i++) |
| <a name="467" href="#467">467</a> { |
| <a name="468" href="#468">468</a> result = jjtGetChild(i).execute(result, context); |
| <a name="469" href="#469">469</a> |
| <a name="470" href="#470">470</a> <strong class="jxr_keyword">if</strong> (result == <strong class="jxr_keyword">null</strong>) |
| <a name="471" href="#471">471</a> { |
| <a name="472" href="#472">472</a> String msg = <span class="jxr_string">"reference set : template = "</span> |
| <a name="473" href="#473">473</a> + context.getCurrentTemplateName() + |
| <a name="474" href="#474">474</a> <span class="jxr_string">" [line "</span> + getLine() + <span class="jxr_string">",column "</span> + |
| <a name="475" href="#475">475</a> getColumn() + <span class="jxr_string">"] : "</span> + literal() + |
| <a name="476" href="#476">476</a> <span class="jxr_string">" is not a valid reference."</span>; |
| <a name="477" href="#477">477</a> |
| <a name="478" href="#478">478</a> log.error(msg); |
| <a name="479" href="#479">479</a> |
| <a name="480" href="#480">480</a> <strong class="jxr_keyword">return</strong> false; |
| <a name="481" href="#481">481</a> } |
| <a name="482" href="#482">482</a> } |
| <a name="483" href="#483">483</a> |
| <a name="484" href="#484">484</a> <em class="jxr_comment">/*</em> |
| <a name="485" href="#485">485</a> <em class="jxr_comment"> * We support two ways of setting the value in a #set($ref.foo = $value ) :</em> |
| <a name="486" href="#486">486</a> <em class="jxr_comment"> * 1) ref.setFoo( value )</em> |
| <a name="487" href="#487">487</a> <em class="jxr_comment"> * 2) ref,put("foo", value ) to parallel the get() map introspection</em> |
| <a name="488" href="#488">488</a> <em class="jxr_comment"> */</em> |
| <a name="489" href="#489">489</a> |
| <a name="490" href="#490">490</a> <strong class="jxr_keyword">try</strong> |
| <a name="491" href="#491">491</a> { |
| <a name="492" href="#492">492</a> <a href="../../../../../../org/apache/velocity/util/introspection/VelPropertySet.html">VelPropertySet</a> vs = |
| <a name="493" href="#493">493</a> rsvc.getUberspect().getPropertySet(result, identifier, |
| <a name="494" href="#494">494</a> value, uberInfo); |
| <a name="495" href="#495">495</a> |
| <a name="496" href="#496">496</a> <strong class="jxr_keyword">if</strong> (vs == <strong class="jxr_keyword">null</strong>) |
| <a name="497" href="#497">497</a> <strong class="jxr_keyword">return</strong> false; |
| <a name="498" href="#498">498</a> |
| <a name="499" href="#499">499</a> vs.invoke(result, value); |
| <a name="500" href="#500">500</a> } |
| <a name="501" href="#501">501</a> <strong class="jxr_keyword">catch</strong>(InvocationTargetException ite) |
| <a name="502" href="#502">502</a> { |
| <a name="503" href="#503">503</a> <em class="jxr_comment">/*</em> |
| <a name="504" href="#504">504</a> <em class="jxr_comment"> * this is possible</em> |
| <a name="505" href="#505">505</a> <em class="jxr_comment"> */</em> |
| <a name="506" href="#506">506</a> |
| <a name="507" href="#507">507</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> MethodInvocationException( |
| <a name="508" href="#508">508</a> <span class="jxr_string">"ASTReference : Invocation of method '"</span> |
| <a name="509" href="#509">509</a> + identifier + <span class="jxr_string">"' in "</span> + result.getClass() |
| <a name="510" href="#510">510</a> + <span class="jxr_string">" threw exception "</span> |
| <a name="511" href="#511">511</a> + ite.getTargetException().toString(), |
| <a name="512" href="#512">512</a> ite.getTargetException(), identifier, context.getCurrentTemplateName(), <strong class="jxr_keyword">this</strong>.getLine(), <strong class="jxr_keyword">this</strong>.getColumn()); |
| <a name="513" href="#513">513</a> } |
| <a name="514" href="#514">514</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="515" href="#515">515</a> <em class="jxr_javadoccomment"> * pass through application level runtime exceptions</em> |
| <a name="516" href="#516">516</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="517" href="#517">517</a> <strong class="jxr_keyword">catch</strong>( RuntimeException e ) |
| <a name="518" href="#518">518</a> { |
| <a name="519" href="#519">519</a> <strong class="jxr_keyword">throw</strong> e; |
| <a name="520" href="#520">520</a> } |
| <a name="521" href="#521">521</a> <strong class="jxr_keyword">catch</strong>(Exception e) |
| <a name="522" href="#522">522</a> { |
| <a name="523" href="#523">523</a> <em class="jxr_comment">/*</em> |
| <a name="524" href="#524">524</a> <em class="jxr_comment"> * maybe a security exception?</em> |
| <a name="525" href="#525">525</a> <em class="jxr_comment"> */</em> |
| <a name="526" href="#526">526</a> log.error(<span class="jxr_string">"ASTReference setValue() : exception : "</span> + e |
| <a name="527" href="#527">527</a> + <span class="jxr_string">" template = "</span> + context.getCurrentTemplateName() |
| <a name="528" href="#528">528</a> + <span class="jxr_string">" ["</span> + <strong class="jxr_keyword">this</strong>.getLine() + <span class="jxr_string">","</span> + <strong class="jxr_keyword">this</strong>.getColumn() + <span class="jxr_string">"]"</span>); |
| <a name="529" href="#529">529</a> <strong class="jxr_keyword">return</strong> false; |
| <a name="530" href="#530">530</a> } |
| <a name="531" href="#531">531</a> |
| <a name="532" href="#532">532</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>; |
| <a name="533" href="#533">533</a> } |
| <a name="534" href="#534">534</a> |
| <a name="535" href="#535">535</a> <strong class="jxr_keyword">private</strong> String getRoot() |
| <a name="536" href="#536">536</a> { |
| <a name="537" href="#537">537</a> <a href="../../../../../../org/apache/velocity/runtime/parser/Token.html">Token</a> t = getFirstToken(); |
| <a name="538" href="#538">538</a> |
| <a name="539" href="#539">539</a> <em class="jxr_comment">/*</em> |
| <a name="540" href="#540">540</a> <em class="jxr_comment"> * we have a special case where something like</em> |
| <a name="541" href="#541">541</a> <em class="jxr_comment"> * $(\\)*!, where the user want's to see something</em> |
| <a name="542" href="#542">542</a> <em class="jxr_comment"> * like $!blargh in the output, but the ! prevents it from showing.</em> |
| <a name="543" href="#543">543</a> <em class="jxr_comment"> * I think that at this point, this isn't a reference.</em> |
| <a name="544" href="#544">544</a> <em class="jxr_comment"> */</em> |
| <a name="545" href="#545">545</a> |
| <a name="546" href="#546">546</a> <em class="jxr_comment">/*<em class="jxr_comment"> so, see if we have "\\!" */</em></em> |
| <a name="547" href="#547">547</a> |
| <a name="548" href="#548">548</a> <strong class="jxr_keyword">int</strong> slashbang = t.image.indexOf(<span class="jxr_string">"\\!"</span>); |
| <a name="549" href="#549">549</a> |
| <a name="550" href="#550">550</a> <strong class="jxr_keyword">if</strong> (slashbang != -1) |
| <a name="551" href="#551">551</a> { |
| <a name="552" href="#552">552</a> <em class="jxr_comment">/*</em> |
| <a name="553" href="#553">553</a> <em class="jxr_comment"> * lets do all the work here. I would argue that if this occurrs,</em> |
| <a name="554" href="#554">554</a> <em class="jxr_comment"> * it's not a reference at all, so preceeding \ characters in front</em> |
| <a name="555" href="#555">555</a> <em class="jxr_comment"> * of the $ are just schmoo. So we just do the escape processing</em> |
| <a name="556" href="#556">556</a> <em class="jxr_comment"> * trick (even | odd) and move on. This kind of breaks the rule</em> |
| <a name="557" href="#557">557</a> <em class="jxr_comment"> * pattern of $ and # but '!' really tosses a wrench into things.</em> |
| <a name="558" href="#558">558</a> <em class="jxr_comment"> */</em> |
| <a name="559" href="#559">559</a> |
| <a name="560" href="#560">560</a> <em class="jxr_comment">/*</em> |
| <a name="561" href="#561">561</a> <em class="jxr_comment"> * count the escapes : even # -> not escaped, odd -> escaped</em> |
| <a name="562" href="#562">562</a> <em class="jxr_comment"> */</em> |
| <a name="563" href="#563">563</a> |
| <a name="564" href="#564">564</a> <strong class="jxr_keyword">int</strong> i = 0; |
| <a name="565" href="#565">565</a> <strong class="jxr_keyword">int</strong> len = t.image.length(); |
| <a name="566" href="#566">566</a> |
| <a name="567" href="#567">567</a> i = t.image.indexOf('$'); |
| <a name="568" href="#568">568</a> |
| <a name="569" href="#569">569</a> <strong class="jxr_keyword">if</strong> (i == -1) |
| <a name="570" href="#570">570</a> { |
| <a name="571" href="#571">571</a> <em class="jxr_comment">/*<em class="jxr_comment"> yikes! */</em></em> |
| <a name="572" href="#572">572</a> log.error(<span class="jxr_string">"ASTReference.getRoot() : internal error : "</span> |
| <a name="573" href="#573">573</a> + <span class="jxr_string">"no $ found for slashbang."</span>); |
| <a name="574" href="#574">574</a> computableReference = false; |
| <a name="575" href="#575">575</a> nullString = t.image; |
| <a name="576" href="#576">576</a> <strong class="jxr_keyword">return</strong> nullString; |
| <a name="577" href="#577">577</a> } |
| <a name="578" href="#578">578</a> |
| <a name="579" href="#579">579</a> <strong class="jxr_keyword">while</strong> (i < len && t.image.charAt(i) != '\\') |
| <a name="580" href="#580">580</a> { |
| <a name="581" href="#581">581</a> i++; |
| <a name="582" href="#582">582</a> } |
| <a name="583" href="#583">583</a> |
| <a name="584" href="#584">584</a> <em class="jxr_comment">/*<em class="jxr_comment"> ok, i is the first \ char */</em></em> |
| <a name="585" href="#585">585</a> |
| <a name="586" href="#586">586</a> <strong class="jxr_keyword">int</strong> start = i; |
| <a name="587" href="#587">587</a> <strong class="jxr_keyword">int</strong> count = 0; |
| <a name="588" href="#588">588</a> |
| <a name="589" href="#589">589</a> <strong class="jxr_keyword">while</strong> (i < len && t.image.charAt(i++) == '\\') |
| <a name="590" href="#590">590</a> { |
| <a name="591" href="#591">591</a> count++; |
| <a name="592" href="#592">592</a> } |
| <a name="593" href="#593">593</a> |
| <a name="594" href="#594">594</a> <em class="jxr_comment">/*</em> |
| <a name="595" href="#595">595</a> <em class="jxr_comment"> * now construct the output string. We really don't care about</em> |
| <a name="596" href="#596">596</a> <em class="jxr_comment"> * leading slashes as this is not a reference. It's quasi-schmoo</em> |
| <a name="597" href="#597">597</a> <em class="jxr_comment"> */</em> |
| <a name="598" href="#598">598</a> |
| <a name="599" href="#599">599</a> nullString = t.image.substring(0,start); <em class="jxr_comment">// prefix up to the first</em> |
| <a name="600" href="#600">600</a> nullString += t.image.substring(start, start + count-1 ); <em class="jxr_comment">// get the slashes</em> |
| <a name="601" href="#601">601</a> nullString += t.image.substring(start+count); <em class="jxr_comment">// and the rest, including the</em> |
| <a name="602" href="#602">602</a> |
| <a name="603" href="#603">603</a> <em class="jxr_comment">/*</em> |
| <a name="604" href="#604">604</a> <em class="jxr_comment"> * this isn't a valid reference, so lets short circuit the value</em> |
| <a name="605" href="#605">605</a> <em class="jxr_comment"> * and set calcs</em> |
| <a name="606" href="#606">606</a> <em class="jxr_comment"> */</em> |
| <a name="607" href="#607">607</a> |
| <a name="608" href="#608">608</a> computableReference = false; |
| <a name="609" href="#609">609</a> |
| <a name="610" href="#610">610</a> <strong class="jxr_keyword">return</strong> nullString; |
| <a name="611" href="#611">611</a> } |
| <a name="612" href="#612">612</a> |
| <a name="613" href="#613">613</a> <em class="jxr_comment">/*</em> |
| <a name="614" href="#614">614</a> <em class="jxr_comment"> * we need to see if this reference is escaped. if so</em> |
| <a name="615" href="#615">615</a> <em class="jxr_comment"> * we will clean off the leading \'s and let the</em> |
| <a name="616" href="#616">616</a> <em class="jxr_comment"> * regular behavior determine if we should output this</em> |
| <a name="617" href="#617">617</a> <em class="jxr_comment"> * as \$foo or $foo later on in render(). Lazyness..</em> |
| <a name="618" href="#618">618</a> <em class="jxr_comment"> */</em> |
| <a name="619" href="#619">619</a> |
| <a name="620" href="#620">620</a> escaped = false; |
| <a name="621" href="#621">621</a> |
| <a name="622" href="#622">622</a> <strong class="jxr_keyword">if</strong> (t.image.startsWith(<span class="jxr_string">"\\"</span>)) |
| <a name="623" href="#623">623</a> { |
| <a name="624" href="#624">624</a> <em class="jxr_comment">/*</em> |
| <a name="625" href="#625">625</a> <em class="jxr_comment"> * count the escapes : even # -> not escaped, odd -> escaped</em> |
| <a name="626" href="#626">626</a> <em class="jxr_comment"> */</em> |
| <a name="627" href="#627">627</a> |
| <a name="628" href="#628">628</a> <strong class="jxr_keyword">int</strong> i = 0; |
| <a name="629" href="#629">629</a> <strong class="jxr_keyword">int</strong> len = t.image.length(); |
| <a name="630" href="#630">630</a> |
| <a name="631" href="#631">631</a> <strong class="jxr_keyword">while</strong> (i < len && t.image.charAt(i) == '\\') |
| <a name="632" href="#632">632</a> { |
| <a name="633" href="#633">633</a> i++; |
| <a name="634" href="#634">634</a> } |
| <a name="635" href="#635">635</a> |
| <a name="636" href="#636">636</a> <strong class="jxr_keyword">if</strong> ((i % 2) != 0) |
| <a name="637" href="#637">637</a> escaped = <strong class="jxr_keyword">true</strong>; |
| <a name="638" href="#638">638</a> |
| <a name="639" href="#639">639</a> <strong class="jxr_keyword">if</strong> (i > 0) |
| <a name="640" href="#640">640</a> escPrefix = t.image.substring(0, i / 2 ); |
| <a name="641" href="#641">641</a> |
| <a name="642" href="#642">642</a> t.image = t.image.substring(i); |
| <a name="643" href="#643">643</a> } |
| <a name="644" href="#644">644</a> |
| <a name="645" href="#645">645</a> <em class="jxr_comment">/*</em> |
| <a name="646" href="#646">646</a> <em class="jxr_comment"> * Look for preceeding stuff like '#' and '$'</em> |
| <a name="647" href="#647">647</a> <em class="jxr_comment"> * and snip it off, except for the</em> |
| <a name="648" href="#648">648</a> <em class="jxr_comment"> * last $</em> |
| <a name="649" href="#649">649</a> <em class="jxr_comment"> */</em> |
| <a name="650" href="#650">650</a> |
| <a name="651" href="#651">651</a> <strong class="jxr_keyword">int</strong> loc1 = t.image.lastIndexOf('$'); |
| <a name="652" href="#652">652</a> |
| <a name="653" href="#653">653</a> <em class="jxr_comment">/*</em> |
| <a name="654" href="#654">654</a> <em class="jxr_comment"> * if we have extra stuff, loc > 0</em> |
| <a name="655" href="#655">655</a> <em class="jxr_comment"> * ex. '#$foo' so attach that to</em> |
| <a name="656" href="#656">656</a> <em class="jxr_comment"> * the prefix.</em> |
| <a name="657" href="#657">657</a> <em class="jxr_comment"> */</em> |
| <a name="658" href="#658">658</a> <strong class="jxr_keyword">if</strong> (loc1 > 0) |
| <a name="659" href="#659">659</a> { |
| <a name="660" href="#660">660</a> morePrefix = morePrefix + t.image.substring(0, loc1); |
| <a name="661" href="#661">661</a> t.image = t.image.substring(loc1); |
| <a name="662" href="#662">662</a> } |
| <a name="663" href="#663">663</a> |
| <a name="664" href="#664">664</a> <em class="jxr_comment">/*</em> |
| <a name="665" href="#665">665</a> <em class="jxr_comment"> * Now it should be clean. Get the literal in case this reference</em> |
| <a name="666" href="#666">666</a> <em class="jxr_comment"> * isn't backed by the context at runtime, and then figure out what</em> |
| <a name="667" href="#667">667</a> <em class="jxr_comment"> * we are working with.</em> |
| <a name="668" href="#668">668</a> <em class="jxr_comment"> */</em> |
| <a name="669" href="#669">669</a> |
| <a name="670" href="#670">670</a> nullString = literal(); |
| <a name="671" href="#671">671</a> |
| <a name="672" href="#672">672</a> <strong class="jxr_keyword">if</strong> (t.image.startsWith(<span class="jxr_string">"$!"</span>)) |
| <a name="673" href="#673">673</a> { |
| <a name="674" href="#674">674</a> referenceType = QUIET_REFERENCE; |
| <a name="675" href="#675">675</a> |
| <a name="676" href="#676">676</a> <em class="jxr_comment">/*</em> |
| <a name="677" href="#677">677</a> <em class="jxr_comment"> * only if we aren't escaped do we want to null the output</em> |
| <a name="678" href="#678">678</a> <em class="jxr_comment"> */</em> |
| <a name="679" href="#679">679</a> |
| <a name="680" href="#680">680</a> <strong class="jxr_keyword">if</strong> (!escaped) |
| <a name="681" href="#681">681</a> nullString = <span class="jxr_string">""</span>; |
| <a name="682" href="#682">682</a> |
| <a name="683" href="#683">683</a> <strong class="jxr_keyword">if</strong> (t.image.startsWith(<span class="jxr_string">"$!{"</span>)) |
| <a name="684" href="#684">684</a> { |
| <a name="685" href="#685">685</a> <em class="jxr_comment">/*</em> |
| <a name="686" href="#686">686</a> <em class="jxr_comment"> * ex : $!{provider.Title}</em> |
| <a name="687" href="#687">687</a> <em class="jxr_comment"> */</em> |
| <a name="688" href="#688">688</a> |
| <a name="689" href="#689">689</a> <strong class="jxr_keyword">return</strong> t.next.image; |
| <a name="690" href="#690">690</a> } |
| <a name="691" href="#691">691</a> <strong class="jxr_keyword">else</strong> |
| <a name="692" href="#692">692</a> { |
| <a name="693" href="#693">693</a> <em class="jxr_comment">/*</em> |
| <a name="694" href="#694">694</a> <em class="jxr_comment"> * ex : $!provider.Title</em> |
| <a name="695" href="#695">695</a> <em class="jxr_comment"> */</em> |
| <a name="696" href="#696">696</a> |
| <a name="697" href="#697">697</a> <strong class="jxr_keyword">return</strong> t.image.substring(2); |
| <a name="698" href="#698">698</a> } |
| <a name="699" href="#699">699</a> } |
| <a name="700" href="#700">700</a> <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (t.image.equals(<span class="jxr_string">"${"</span>)) |
| <a name="701" href="#701">701</a> { |
| <a name="702" href="#702">702</a> <em class="jxr_comment">/*</em> |
| <a name="703" href="#703">703</a> <em class="jxr_comment"> * ex : ${provider.Title}</em> |
| <a name="704" href="#704">704</a> <em class="jxr_comment"> */</em> |
| <a name="705" href="#705">705</a> |
| <a name="706" href="#706">706</a> referenceType = FORMAL_REFERENCE; |
| <a name="707" href="#707">707</a> <strong class="jxr_keyword">return</strong> t.next.image; |
| <a name="708" href="#708">708</a> } |
| <a name="709" href="#709">709</a> <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (t.image.startsWith(<span class="jxr_string">"$"</span>)) |
| <a name="710" href="#710">710</a> { |
| <a name="711" href="#711">711</a> <em class="jxr_comment">/*</em> |
| <a name="712" href="#712">712</a> <em class="jxr_comment"> * just nip off the '$' so we have</em> |
| <a name="713" href="#713">713</a> <em class="jxr_comment"> * the root</em> |
| <a name="714" href="#714">714</a> <em class="jxr_comment"> */</em> |
| <a name="715" href="#715">715</a> |
| <a name="716" href="#716">716</a> referenceType = NORMAL_REFERENCE; |
| <a name="717" href="#717">717</a> <strong class="jxr_keyword">return</strong> t.image.substring(1); |
| <a name="718" href="#718">718</a> } |
| <a name="719" href="#719">719</a> <strong class="jxr_keyword">else</strong> |
| <a name="720" href="#720">720</a> { |
| <a name="721" href="#721">721</a> <em class="jxr_comment">/*</em> |
| <a name="722" href="#722">722</a> <em class="jxr_comment"> * this is a 'RUNT', which can happen in certain circumstances where</em> |
| <a name="723" href="#723">723</a> <em class="jxr_comment"> * the parser is fooled into believeing that an IDENTIFIER is a real</em> |
| <a name="724" href="#724">724</a> <em class="jxr_comment"> * reference. Another 'dreaded' MORE hack :).</em> |
| <a name="725" href="#725">725</a> <em class="jxr_comment"> */</em> |
| <a name="726" href="#726">726</a> referenceType = RUNT; |
| <a name="727" href="#727">727</a> <strong class="jxr_keyword">return</strong> t.image; |
| <a name="728" href="#728">728</a> } |
| <a name="729" href="#729">729</a> |
| <a name="730" href="#730">730</a> } |
| <a name="731" href="#731">731</a> |
| <a name="732" href="#732">732</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="733" href="#733">733</a> <em class="jxr_javadoccomment"> * @param context</em> |
| <a name="734" href="#734">734</a> <em class="jxr_javadoccomment"> * @param variable</em> |
| <a name="735" href="#735">735</a> <em class="jxr_javadoccomment"> * @return The evaluated value of the variable.</em> |
| <a name="736" href="#736">736</a> <em class="jxr_javadoccomment"> * @throws MethodInvocationException</em> |
| <a name="737" href="#737">737</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="738" href="#738">738</a> <strong class="jxr_keyword">public</strong> Object getVariableValue(<a href="../../../../../../org/apache/velocity/context/Context.html">Context</a> context, String variable) <strong class="jxr_keyword">throws</strong> MethodInvocationException |
| <a name="739" href="#739">739</a> { |
| <a name="740" href="#740">740</a> <strong class="jxr_keyword">return</strong> context.get(variable); |
| <a name="741" href="#741">741</a> } |
| <a name="742" href="#742">742</a> |
| <a name="743" href="#743">743</a> |
| <a name="744" href="#744">744</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="745" href="#745">745</a> <em class="jxr_javadoccomment"> * Routine to allow the literal representation to be</em> |
| <a name="746" href="#746">746</a> <em class="jxr_javadoccomment"> * externally overridden. Used now in the VM system</em> |
| <a name="747" href="#747">747</a> <em class="jxr_javadoccomment"> * to override a reference in a VM tree with the</em> |
| <a name="748" href="#748">748</a> <em class="jxr_javadoccomment"> * literal of the calling arg to make it work nicely</em> |
| <a name="749" href="#749">749</a> <em class="jxr_javadoccomment"> * when calling arg is null. It seems a bit much, but</em> |
| <a name="750" href="#750">750</a> <em class="jxr_javadoccomment"> * does keep things consistant.</em> |
| <a name="751" href="#751">751</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="752" href="#752">752</a> <em class="jxr_javadoccomment"> * Note, you can only set the literal once...</em> |
| <a name="753" href="#753">753</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="754" href="#754">754</a> <em class="jxr_javadoccomment"> * @param literal String to render to when null</em> |
| <a name="755" href="#755">755</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="756" href="#756">756</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setLiteral(String literal) |
| <a name="757" href="#757">757</a> { |
| <a name="758" href="#758">758</a> <em class="jxr_comment">/*</em> |
| <a name="759" href="#759">759</a> <em class="jxr_comment"> * do only once</em> |
| <a name="760" href="#760">760</a> <em class="jxr_comment"> */</em> |
| <a name="761" href="#761">761</a> |
| <a name="762" href="#762">762</a> <strong class="jxr_keyword">if</strong>( <strong class="jxr_keyword">this</strong>.literal == <strong class="jxr_keyword">null</strong>) |
| <a name="763" href="#763">763</a> <strong class="jxr_keyword">this</strong>.literal = literal; |
| <a name="764" href="#764">764</a> } |
| <a name="765" href="#765">765</a> |
| <a name="766" href="#766">766</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="767" href="#767">767</a> <em class="jxr_javadoccomment"> * Override of the SimpleNode method literal()</em> |
| <a name="768" href="#768">768</a> <em class="jxr_javadoccomment"> * Returns the literal representation of the</em> |
| <a name="769" href="#769">769</a> <em class="jxr_javadoccomment"> * node. Should be something like</em> |
| <a name="770" href="#770">770</a> <em class="jxr_javadoccomment"> * $<token>.</em> |
| <a name="771" href="#771">771</a> <em class="jxr_javadoccomment"> * @return A literal string.</em> |
| <a name="772" href="#772">772</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="773" href="#773">773</a> <strong class="jxr_keyword">public</strong> String literal() |
| <a name="774" href="#774">774</a> { |
| <a name="775" href="#775">775</a> <strong class="jxr_keyword">if</strong> (literal != <strong class="jxr_keyword">null</strong>) |
| <a name="776" href="#776">776</a> <strong class="jxr_keyword">return</strong> literal; |
| <a name="777" href="#777">777</a> |
| <a name="778" href="#778">778</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">super</strong>.literal(); |
| <a name="779" href="#779">779</a> } |
| <a name="780" href="#780">780</a> } |
| </pre> |
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