<a name="92" href="#92">92</a>          t = addElementToDefinition(<strong>new</strong> <a href="../../../../org/archive/crawler/settings/SimpleType.html">SimpleType</a>(ATTR_ISOLATE_THREADS,<a name="93" href="#93">93</a>                  <span class="string">"Whether each ToeThread should get its own independent "</span> +<a name="94" href="#94">94</a>                  <span class="string">"script context, or they should share synchronized access "</span> +<a name="95" href="#95">95</a>                  <span class="string">"to one context. Default is true, meaning each threads "</span> +<a name="96" href="#96">96</a>                  <span class="string">"gets its own isolated context."</span>, <strong>true</strong>));<a name="97" href="#97">97</a>          t.setOverrideable(false);<a name="98" href="#98">98</a>  <a name="99" href="#99">99</a>      }<a name="100" href="#100">100</a> <a name="101" href="#101">101</a>     <strong>protected</strong> <strong>synchronized</strong> <strong>void</strong> innerProcess(<a href="../../../../org/archive/crawler/datamodel/CrawlURI.html">CrawlURI</a> curi) {<a name="102" href="#102">102</a>         <em class="comment">// depending on previous configuration, interpreter may </em><a name="103" href="#103">103</a>         <em class="comment">// be local to this thread or shared</em><a name="104" href="#104">104</a>         Interpreter interpreter = getInterpreter(); <a name="105" href="#105">105</a>         <strong>synchronized</strong>(interpreter) {<a name="106" href="#106">106</a>             <em class="comment">// synchronization is harmless for local thread interpreter,</em><a name="107" href="#107">107</a>             <em class="comment">// necessary for shared interpreter</em><a name="108" href="#108">108</a>             <strong>try</strong> {<a name="109" href="#109">109</a>                 interpreter.set(<span class="string">"curi"</span>,curi);<a name="110" href="#110">110</a>                 interpreter.eval(<span class="string">"process(curi)"</span>);<a name="111" href="#111">111</a>             } <strong>catch</strong> (EvalError e) {<a name="112" href="#112">112</a>                 <em class="comment">// TODO Auto-generated catch block</em><a name="113" href="#113">113</a>                 e.printStackTrace();<a name="114" href="#114">114</a>             } <a name="115" href="#115">115</a>         }<a name="116" href="#116">116</a>     }<a name="117" href="#117">117</a> <a name="118" href="#118">118</a>     <em>/**<em>*</em></em><a name="119" href="#119">119</a> <em>     * Get the proper Interpreter instance -- either shared or local </em><a name="120" href="#120">120</a> <em>     * to this thread. </em><a name="121" href="#121">121</a> <em>     * @return Interpreter to use</em><a name="122" href="#122">122</a> <em>     */</em><a name="123" href="#123">123</a>     <strong>protected</strong> Interpreter getInterpreter() {<a name="124" href="#124">124</a>         <strong>if</strong>(sharedInterpreter!=<strong>null</strong>) {<a name="125" href="#125">125</a>             <strong>return</strong> sharedInterpreter;<a name="126" href="#126">126</a>         }<a name="127" href="#127">127</a>         Interpreter interpreter = threadInterpreter.get(); <a name="128" href="#128">128</a>         <strong>if</strong>(interpreter==<strong>null</strong>) {<a name="129" href="#129">129</a>             interpreter = newInterpreter(); <a name="130" href="#130">130</a>             threadInterpreter.set(interpreter);<a name="131" href="#131">131</a>         }<a name="132" href="#132">132</a>         <strong>return</strong> interpreter; <a name="133" href="#133">133</a>     }<a name="134" href="#134">134</a> <a name="135" href="#135">135</a>     <em>/**<em>*</em></em><a name="136" href="#136">136</a> <em>     * Create a new Interpreter instance, preloaded with any supplied</em><a name="137" href="#137">137</a> <em>     * source code or source file and the variables 'self' (this </em><a name="138" href="#138">138</a> <em>     * BeanShellProcessor) and 'controller' (the CrawlController). </em><a name="139" href="#139">139</a> <em>     * </em><a name="140" href="#140">140</a> <em>     * @return  the new Interpreter instance</em><a name="141" href="#141">141</a> <em>     */</em><a name="142" href="#142">142</a>     <strong>protected</strong> Interpreter newInterpreter() {<a name="143" href="#143">143</a>         Interpreter interpreter = <strong>new</strong> Interpreter(); <a name="144" href="#144">144</a>         <strong>try</strong> {<a name="145" href="#145">145</a>             interpreter.set(<span class="string">"self"</span>, <strong>this</strong>);<a name="146" href="#146">146</a>             interpreter.set(<span class="string">"controller"</span>, getController());<a name="147" href="#147">147</a>             <a name="148" href="#148">148</a>             String filePath = (String) getUncheckedAttribute(<strong>null</strong>, ATTR_SCRIPT_FILE);<a name="149" href="#149">149</a>             <strong>if</strong>(filePath.length()>0) {<a name="150" href="#150">150</a>                 <strong>try</strong> {<a name="151" href="#151">151</a>                     File file = getSettingsHandler().getPathRelativeToWorkingDirectory(filePath);<a name="152" href="#152">152</a>                     interpreter.source(file.getPath());<a name="153" href="#153">153</a>                 } <strong>catch</strong> (IOException e) {<a name="154" href="#154">154</a>                     logger.log(Level.SEVERE,<span class="string">"unable to read script file"</span>,e);<a name="155" href="#155">155</a>                 }<a name="156" href="#156">156</a>             }<a name="157" href="#157">157</a>         } <strong>catch</strong> (EvalError e) {<a name="158" href="#158">158</a>             <em class="comment">// TODO Auto-generated catch block</em><a name="159" href="#159">159</a>             e.printStackTrace();<a name="160" href="#160">160</a>         }<a name="161" href="#161">161</a>         <a name="162" href="#162">162</a>         <strong>return</strong> interpreter; <a name="163" href="#163">163</a>     }<a name="164" href="#164">164</a> <a name="165" href="#165">165</a>     <strong>protected</strong> <strong>void</strong> initialTasks() {<a name="166" href="#166">166</a>         <strong>super</strong>.initialTasks();<a name="167" href="#167">167</a>         kickUpdate();<a name="168" href="#168">168</a>     }<a name="169" href="#169">169</a> <a name="170" href="#170">170</a>     <em>/**<em>*</em></em><a name="171" href="#171">171</a> <em>     * Setup (or reset) Intepreter variables, as appropraite based on </em><a name="172" href="#172">172</a> <em>     * thread-isolation setting. </em><a name="173" href="#173">173</a> <em>     */</em><a name="174" href="#174">174</a>     <strong>public</strong> <strong>void</strong> kickUpdate() {<a name="175" href="#175">175</a>         <em class="comment">// TODO make it so running state (tallies, etc.) isn't lost on changes</em><a name="176" href="#176">176</a>         <em class="comment">// unless unavoidable</em><a name="177" href="#177">177</a>         <strong>if</strong>((Boolean)getUncheckedAttribute(<strong>null</strong>,ATTR_ISOLATE_THREADS)) {<a name="178" href="#178">178</a>             sharedInterpreter = <strong>null</strong>; <a name="179" href="#179">179</a>             threadInterpreter = <strong>new</strong> ThreadLocal&lt;Interpreter>(); <a name="180" href="#180">180</a>         } <strong>else</strong> {<a name="181" href="#181">181</a>             sharedInterpreter = newInterpreter(); <a name="182" href="#182">182</a>             threadInterpreter = <strong>null</strong>;<a name="183" href="#183">183</a>         }<a name="184" href="#184">184</a>     }<a name="185" href="#185">185</a> }</pre><hr/><div id="footer">This page was automatically generated by <a href="http://maven.apache.org/">Maven</a></div></body></html>