processorchainlist.html

用JAVA编写的,在做实验的时候留下来的,本来想删的,但是传上来,大家分享吧

<a name="88" href="#88">88</a>  <em>     * This method takes a map of processors and wraps it in a ProcessorChain</em>
<a name="89" href="#89">89</a>  <em>     * object and adds it to the list of chains.</em>
<a name="90" href="#90">90</a>  <em>     *</em>
<a name="91" href="#91">91</a>  <em>     * @param processorMap the processor map to be added.</em>
<a name="92" href="#92">92</a>  <em>     */</em>
<a name="93" href="#93">93</a>      <strong>public</strong> <strong>void</strong> addProcessorMap(String name, <a href="../../../../org/archive/crawler/settings/MapType.html">MapType</a> processorMap) {
<a name="94" href="#94">94</a>          <a href="../../../../org/archive/crawler/framework/ProcessorChain.html">ProcessorChain</a> processorChain = <strong>new</strong> <a href="../../../../org/archive/crawler/framework/ProcessorChain.html">ProcessorChain</a>(processorMap);
<a name="95" href="#95">95</a>          <a href="../../../../org/archive/crawler/framework/ProcessorChain.html">ProcessorChain</a> previousChain = getLastChain();
<a name="96" href="#96">96</a>          <strong>if</strong> (previousChain != <strong>null</strong>) {
<a name="97" href="#97">97</a>              previousChain.setNextChain(processorChain);
<a name="98" href="#98">98</a>          }
<a name="99" href="#99">99</a>          chainList.add(processorChain);
<a name="100" href="#100">100</a>         chainMap.put(name, processorChain);
<a name="101" href="#101">101</a>     }
<a name="102" href="#102">102</a> 
<a name="103" href="#103">103</a>     <em>/**<em>* Get the first processor chain.</em></em>
<a name="104" href="#104">104</a> <em>     *</em>
<a name="105" href="#105">105</a> <em>     * @return the first processor chain.</em>
<a name="106" href="#106">106</a> <em>     */</em>
<a name="107" href="#107">107</a>     <strong>public</strong> <a href="../../../../org/archive/crawler/framework/ProcessorChain.html">ProcessorChain</a> getFirstChain() {
<a name="108" href="#108">108</a>         <strong>return</strong> (ProcessorChain) chainList.get(0);
<a name="109" href="#109">109</a>     }
<a name="110" href="#110">110</a> 
<a name="111" href="#111">111</a>     <em>/**<em>* Get the last processor chain.</em></em>
<a name="112" href="#112">112</a> <em>     *</em>
<a name="113" href="#113">113</a> <em>     * The last processor chain should contain processors that should always</em>
<a name="114" href="#114">114</a> <em>     * be run for a URI that has started its way through the processors.</em>
<a name="115" href="#115">115</a> <em>     *</em>
<a name="116" href="#116">116</a> <em>     * @return the last processor chain.</em>
<a name="117" href="#117">117</a> <em>     */</em>
<a name="118" href="#118">118</a>     <strong>public</strong> <a href="../../../../org/archive/crawler/framework/ProcessorChain.html">ProcessorChain</a> getLastChain() {
<a name="119" href="#119">119</a>         <strong>if</strong> (size() == 0) {
<a name="120" href="#120">120</a>             <strong>return</strong> <strong>null</strong>;
<a name="121" href="#121">121</a>         } <strong>else</strong> {
<a name="122" href="#122">122</a>             <strong>return</strong> (ProcessorChain) chainList.get(size() - 1);
<a name="123" href="#123">123</a>         }
<a name="124" href="#124">124</a>     }
<a name="125" href="#125">125</a> 
<a name="126" href="#126">126</a>     <em>/**<em>* Get the total number of all processors in all the chains.</em></em>
<a name="127" href="#127">127</a> <em>     *</em>
<a name="128" href="#128">128</a> <em>     * @return the total number of all processors in all the chains.</em>
<a name="129" href="#129">129</a> <em>     */</em>
<a name="130" href="#130">130</a>     <strong>public</strong> <strong>int</strong> processorCount() {
<a name="131" href="#131">131</a>         <strong>int</strong> processorCount = 0;
<a name="132" href="#132">132</a>         <strong>for</strong> (Iterator it = iterator(); it.hasNext();) {
<a name="133" href="#133">133</a>             processorCount += ((ProcessorChain) it.next()).size();
<a name="134" href="#134">134</a>         }
<a name="135" href="#135">135</a>         <strong>return</strong> processorCount;
<a name="136" href="#136">136</a>     }
<a name="137" href="#137">137</a> 
<a name="138" href="#138">138</a>     <em>/**<em>* Get an iterator over the processor chains.</em></em>
<a name="139" href="#139">139</a> <em>     *</em>
<a name="140" href="#140">140</a> <em>     * @return an iterator over the processor chains.</em>
<a name="141" href="#141">141</a> <em>     */</em>
<a name="142" href="#142">142</a>     <strong>public</strong> Iterator iterator() {
<a name="143" href="#143">143</a>         <strong>return</strong> chainList.iterator();
<a name="144" href="#144">144</a>     }
<a name="145" href="#145">145</a> 
<a name="146" href="#146">146</a>     <em>/**<em>* Get the number of processor chains.</em></em>
<a name="147" href="#147">147</a> <em>     *</em>
<a name="148" href="#148">148</a> <em>     * @return the number of processor chains.</em>
<a name="149" href="#149">149</a> <em>     */</em>
<a name="150" href="#150">150</a>     <strong>public</strong> <strong>int</strong> size() {
<a name="151" href="#151">151</a>         <strong>return</strong> chainList.size();
<a name="152" href="#152">152</a>     }
<a name="153" href="#153">153</a> 
<a name="154" href="#154">154</a>     <em>/**<em>* Get a processor chain by its index in the list of chains.</em></em>
<a name="155" href="#155">155</a> <em>     *</em>
<a name="156" href="#156">156</a> <em>     * @param index the chains index in the list of chains.</em>
<a name="157" href="#157">157</a> <em>     * @return the requested processor chain.</em>
<a name="158" href="#158">158</a> <em>     */</em>
<a name="159" href="#159">159</a>     <strong>public</strong> <a href="../../../../org/archive/crawler/framework/ProcessorChain.html">ProcessorChain</a> getProcessorChain(<strong>int</strong> index) {
<a name="160" href="#160">160</a>         <strong>return</strong> (ProcessorChain) chainList.get(index);
<a name="161" href="#161">161</a>     }
<a name="162" href="#162">162</a> 
<a name="163" href="#163">163</a>     <em>/**<em>* Get a processor chain by its name.</em></em>
<a name="164" href="#164">164</a> <em>     *</em>
<a name="165" href="#165">165</a> <em>     * @param name name of the processor chain to get.</em>
<a name="166" href="#166">166</a> <em>     * @return the requested processor chain.</em>
<a name="167" href="#167">167</a> <em>     */</em>
<a name="168" href="#168">168</a>     <strong>public</strong> <a href="../../../../org/archive/crawler/framework/ProcessorChain.html">ProcessorChain</a> getProcessorChain(String name) {
<a name="169" href="#169">169</a>         <strong>return</strong> (ProcessorChain) chainMap.get(name);
<a name="170" href="#170">170</a>     }
<a name="171" href="#171">171</a> 
<a name="172" href="#172">172</a>     <strong>public</strong> <strong>void</strong> kickUpdate() {
<a name="173" href="#173">173</a>         <strong>for</strong> (ProcessorChain chain : chainList) {
<a name="174" href="#174">174</a>             chain.kickUpdate();
<a name="175" href="#175">175</a>         }
<a name="176" href="#176">176</a>     }
<a name="177" href="#177">177</a> 
<a name="178" href="#178">178</a> }
</pre>
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