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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head><meta http-equiv="content-type" content="text/html; charset=UTF-8" /><title>PersistOnlineProcessor xref</title><link type="text/css" rel="stylesheet" href="../../../../../stylesheet.css" /></head><body><div id="overview"><a href="../../../../../../apidocs/org/archive/crawler/processor/recrawl/PersistOnlineProcessor.html">View Javadoc</a></div><pre><a name="1" href="#1">1</a> <em class="comment">/*<em class="comment"> PersistOnlineProcessor.java</em></em><a name="2" href="#2">2</a> <em class="comment"> * </em><a name="3" href="#3">3</a> <em class="comment"> * Created on Feb 18, 2005</em><a name="4" href="#4">4</a> <em class="comment"> *</em><a name="5" href="#5">5</a> <em class="comment"> * Copyright (C) 2007 Internet Archive.</em><a name="6" href="#6">6</a> <em class="comment"> * </em><a name="7" href="#7">7</a> <em class="comment"> * This file is part of the Heritrix web crawler (crawler.archive.org).</em><a name="8" href="#8">8</a> <em class="comment"> * </em><a name="9" href="#9">9</a> <em class="comment"> * Heritrix is free software; you can redistribute it and/or modify</em><a name="10" href="#10">10</a> <em class="comment"> * it under the terms of the GNU Lesser Public License as published by</em><a name="11" href="#11">11</a> <em class="comment"> * the Free Software Foundation; either version 2.1 of the License, or</em><a name="12" href="#12">12</a> <em class="comment"> * any later version.</em><a name="13" href="#13">13</a> <em class="comment"> * </em><a name="14" href="#14">14</a> <em class="comment"> * Heritrix is distributed in the hope that it will be useful, </em><a name="15" href="#15">15</a> <em class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</em><a name="16" href="#16">16</a> <em class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</em><a name="17" href="#17">17</a> <em class="comment"> * GNU Lesser Public License for more details.</em><a name="18" href="#18">18</a> <em class="comment"> * </em><a name="19" href="#19">19</a> <em class="comment"> * You should have received a copy of the GNU Lesser Public License</em><a name="20" href="#20">20</a> <em class="comment"> * along with Heritrix; if not, write to the Free Software</em><a name="21" href="#21">21</a> <em class="comment"> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</em><a name="22" href="#22">22</a> <em class="comment"> */</em><a name="23" href="#23">23</a> <strong>package</strong> <a href="../../../../../org/archive/crawler/processor/recrawl/package-summary.html">org.archive.crawler.processor.recrawl</a>;<a name="24" href="#24">24</a> <a name="25" href="#25">25</a> <strong>import</strong> org.archive.util.bdbje.EnhancedEnvironment;<a name="26" href="#26">26</a> <a name="27" href="#27">27</a> <strong>import</strong> st.ata.util.AList;<a name="28" href="#28">28</a> <a name="29" href="#29">29</a> <strong>import</strong> com.sleepycat.bind.serial.SerialBinding;<a name="30" href="#30">30</a> <strong>import</strong> com.sleepycat.bind.serial.StoredClassCatalog;<a name="31" href="#31">31</a> <strong>import</strong> com.sleepycat.bind.tuple.StringBinding;<a name="32" href="#32">32</a> <strong>import</strong> com.sleepycat.collections.StoredSortedMap;<a name="33" href="#33">33</a> <strong>import</strong> com.sleepycat.je.Database;<a name="34" href="#34">34</a> <strong>import</strong> com.sleepycat.je.DatabaseConfig;<a name="35" href="#35">35</a> <strong>import</strong> com.sleepycat.je.DatabaseException;<a name="36" href="#36">36</a> <a name="37" href="#37">37</a> <em>/**<em>*</em></em><a name="38" href="#38">38</a> <em> * Common superclass for persisting Processors which directly store/load</em><a name="39" href="#39">39</a> <em> * to persistence (as opposed to logging for batch load later). </em><a name="40" href="#40">40</a> <em> * @author gojomo</em><a name="41" href="#41">41</a> <em> */</em><a name="42" href="#42">42</a> <strong>public</strong> <strong>abstract</strong> <strong>class</strong> <a href="../../../../../org/archive/crawler/processor/recrawl/PersistOnlineProcessor.html">PersistOnlineProcessor</a> <strong>extends</strong> <a href="../../../../../org/archive/crawler/processor/recrawl/PersistProcessor.html">PersistProcessor</a> {<a name="43" href="#43">43</a> <strong>private</strong> <strong>static</strong> <strong>final</strong> <strong>long</strong> serialVersionUID = -666479480942267268L;<a name="44" href="#44">44</a> <a name="45" href="#45">45</a> <strong>protected</strong> StoredSortedMap store;<a name="46" href="#46">46</a> <strong>protected</strong> Database historyDb;<a name="47" href="#47">47</a> <a name="48" href="#48">48</a> <em>/**<em>*</em></em><a name="49" href="#49">49</a> <em> * Usual constructor</em><a name="50" href="#50">50</a> <em> * </em><a name="51" href="#51">51</a> <em> * @param name</em><a name="52" href="#52">52</a> <em> * @param string</em><a name="53" href="#53">53</a> <em> */</em><a name="54" href="#54">54</a> <strong>public</strong> <a href="../../../../../org/archive/crawler/processor/recrawl/PersistOnlineProcessor.html">PersistOnlineProcessor</a>(String name, String string) {<a name="55" href="#55">55</a> <strong>super</strong>(name, string);<a name="56" href="#56">56</a> }<a name="57" href="#57">57</a> <a name="58" href="#58">58</a> <strong>protected</strong> <strong>void</strong> initialTasks() {<a name="59" href="#59">59</a> <em class="comment">// TODO: share single store instance between Load and Store processors</em><a name="60" href="#60">60</a> <em class="comment">// (shared context? EnhancedEnvironment?)</em><a name="61" href="#61">61</a> store = initStore(); <a name="62" href="#62">62</a> }<a name="63" href="#63">63</a> <a name="64" href="#64">64</a> <strong>protected</strong> StoredSortedMap initStore() {<a name="65" href="#65">65</a> StoredSortedMap historyMap;<a name="66" href="#66">66</a> <strong>try</strong> {<a name="67" href="#67">67</a> <a href="../../../../../org/archive/util/bdbje/EnhancedEnvironment.html">EnhancedEnvironment</a> env = getController().getBdbEnvironment();<a name="68" href="#68">68</a> StoredClassCatalog classCatalog = env.getClassCatalog();<a name="69" href="#69">69</a> DatabaseConfig dbConfig = historyDatabaseConfig();<a name="70" href="#70">70</a> historyDb = env.openDatabase(<strong>null</strong>, URI_HISTORY_DBNAME, dbConfig);<a name="71" href="#71">71</a> historyMap = <strong>new</strong> StoredSortedMap(historyDb,<a name="72" href="#72">72</a> <strong>new</strong> StringBinding(), <strong>new</strong> SerialBinding(classCatalog,<a name="73" href="#73">73</a> AList.<strong>class</strong>), <strong>true</strong>);<a name="74" href="#74">74</a> } <strong>catch</strong> (DatabaseException e) {<a name="75" href="#75">75</a> <strong>throw</strong> <strong>new</strong> RuntimeException(e);<a name="76" href="#76">76</a> }<a name="77" href="#77">77</a> <strong>return</strong> historyMap;<a name="78" href="#78">78</a> }<a name="79" href="#79">79</a> <a name="80" href="#80">80</a> @Override<a name="81" href="#81">81</a> <strong>protected</strong> <strong>void</strong> finalTasks() {<a name="82" href="#82">82</a> <strong>try</strong> {<a name="83" href="#83">83</a> historyDb.sync();<a name="84" href="#84">84</a> historyDb.close();<a name="85" href="#85">85</a> } <strong>catch</strong> (DatabaseException e) {<a name="86" href="#86">86</a> <em class="comment">// TODO Auto-generated catch block</em><a name="87" href="#87">87</a> <strong>throw</strong> <strong>new</strong> RuntimeException(e);<a name="88" href="#88">88</a> }<a name="89" href="#89">89</a> }<a name="90" href="#90">90</a> <a name="91" href="#91">91</a> }</pre><hr/><div id="footer">This page was automatically generated by <a href="http://maven.apache.org/">Maven</a></div></body></html>?? 快捷鍵說(shuō)明
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