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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>Warc2Arc xref</title><link type="text/css" rel="stylesheet" href="../../../stylesheet.css" /></head><body><div id="overview"><a href="../../../../apidocs/org/archive/io/Warc2Arc.html">View Javadoc</a></div><pre><a name="1" href="#1">1</a> <em class="comment">/*<em class="comment"> $Id: Warc2Arc.java,v 1.3 2006/09/02 02:58:28 stack-sf Exp $</em></em><a name="2" href="#2">2</a> <em class="comment"> *</em><a name="3" href="#3">3</a> <em class="comment"> * Created Aug 29, 2006</em><a name="4" href="#4">4</a> <em class="comment"> *</em><a name="5" href="#5">5</a> <em class="comment"> * Copyright (C) 2006 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/io/package-summary.html">org.archive.io</a>;<a name="24" href="#24">24</a> <a name="25" href="#25">25</a> <a name="26" href="#26">26</a> <strong>import</strong> java.io.File;<a name="27" href="#27">27</a> <strong>import</strong> java.io.IOException;<a name="28" href="#28">28</a> <strong>import</strong> java.util.ArrayList;<a name="29" href="#29">29</a> <strong>import</strong> java.util.Arrays;<a name="30" href="#30">30</a> <strong>import</strong> java.util.Iterator;<a name="31" href="#31">31</a> <strong>import</strong> java.util.List;<a name="32" href="#32">32</a> <strong>import</strong> java.util.concurrent.atomic.AtomicInteger;<a name="33" href="#33">33</a> <strong>import</strong> java.util.logging.Level;<a name="34" href="#34">34</a> <strong>import</strong> java.util.logging.Logger;<a name="35" href="#35">35</a> <a name="36" href="#36">36</a> <strong>import</strong> org.apache.commons.cli.CommandLine;<a name="37" href="#37">37</a> <strong>import</strong> org.apache.commons.cli.HelpFormatter;<a name="38" href="#38">38</a> <strong>import</strong> org.apache.commons.cli.Option;<a name="39" href="#39">39</a> <strong>import</strong> org.apache.commons.cli.Options;<a name="40" href="#40">40</a> <strong>import</strong> org.apache.commons.cli.ParseException;<a name="41" href="#41">41</a> <strong>import</strong> org.apache.commons.cli.PosixParser;<a name="42" href="#42">42</a> <strong>import</strong> org.archive.io.arc.ARCWriter;<a name="43" href="#43">43</a> <strong>import</strong> org.archive.io.arc.ARCConstants;<a name="44" href="#44">44</a> <strong>import</strong> org.archive.io.warc.WARCConstants;<a name="45" href="#45">45</a> <strong>import</strong> org.archive.io.warc.WARCReader;<a name="46" href="#46">46</a> <strong>import</strong> org.archive.io.warc.WARCReaderFactory;<a name="47" href="#47">47</a> <strong>import</strong> org.archive.io.warc.WARCRecord;<a name="48" href="#48">48</a> <strong>import</strong> org.archive.util.ArchiveUtils;<a name="49" href="#49">49</a> <strong>import</strong> org.archive.util.FileUtils;<a name="50" href="#50">50</a> <a name="51" href="#51">51</a> <a name="52" href="#52">52</a> <em>/**<em>*</em></em><a name="53" href="#53">53</a> <em> * Convert WARCs to (sortof) ARCs.</em><a name="54" href="#54">54</a> <em> * WARCs can be 1Gig in size, that is, 10x default ARC size. Script takes</em><a name="55" href="#55">55</a> <em> * directory as output and will write multiple ARCs for a single large WARC.</em><a name="56" href="#56">56</a> <em> * Only writes resource records of type <code>text/dns</code> or</em><a name="57" href="#57">57</a> <em> * <code>application/http; msgtype=response</code>. All others -- metadata,</em><a name="58" href="#58">58</a> <em> * request -- are skipped.</em><a name="59" href="#59">59</a> <em> * @author stack</em><a name="60" href="#60">60</a> <em> * @version $Date: 2006/09/02 02:58:28 $ $Revision: 1.3 $</em><a name="61" href="#61">61</a> <em> */</em><a name="62" href="#62">62</a> <strong>public</strong> <strong>class</strong> Warc2Arc {<a name="63" href="#63">63</a> <strong>private</strong> <strong>static</strong> <strong>void</strong> usage(HelpFormatter formatter, Options options,<a name="64" href="#64">64</a> <strong>int</strong> exitCode) {<a name="65" href="#65">65</a> formatter.printHelp(<span class="string">"java org.archive.io.arc.Warc2Arc "</span> +<a name="66" href="#66">66</a> <span class="string">"[--force] [--prefix=PREFIX] [--suffix=SUFFIX] WARC_INPUT "</span> +<a name="67" href="#67">67</a> <span class="string">"OUTPUT_DIR"</span>,<a name="68" href="#68">68</a> options);<a name="69" href="#69">69</a> System.exit(exitCode);<a name="70" href="#70">70</a> }<a name="71" href="#71">71</a> <a name="72" href="#72">72</a> <strong>static</strong> String parseRevision(<strong>final</strong> String version) {<a name="73" href="#73">73</a> <strong>final</strong> String ID = <span class="string">"$Revision: "</span>;<a name="74" href="#74">74</a> <strong>int</strong> index = version.indexOf(ID);<a name="75" href="#75">75</a> <strong>return</strong> (index < 0)? version:<a name="76" href="#76">76</a> version.substring(index + ID.length(), version.length() - 1).trim();<a name="77" href="#77">77</a> }<a name="78" href="#78">78</a> <a name="79" href="#79">79</a> <strong>private</strong> <strong>static</strong> String getRevision() {<a name="80" href="#80">80</a> <strong>return</strong> parseRevision(<span class="string">"$Revision: 1.3 $"</span>);<a name="81" href="#81">81</a> }<a name="82" href="#82">82</a> <a name="83" href="#83">83</a> <strong>public</strong> <strong>void</strong> transform(<strong>final</strong> File warc, <strong>final</strong> File dir, <strong>final</strong> String prefix,<a name="84" href="#84">84</a> <strong>final</strong> String suffix, <strong>final</strong> <strong>boolean</strong> force)<a name="85" href="#85">85</a> throws IOException, java.text.ParseException {<a name="86" href="#86">86</a> FileUtils.isReadable(warc);<a name="87" href="#87">87</a> FileUtils.isReadable(dir);<a name="88" href="#88">88</a> <a href="../../../org/archive/io/warc/WARCReader.html">WARCReader</a> reader = WARCReaderFactory.get(warc);<a name="89" href="#89">89</a> List<String> metadata = <strong>new</strong> ArrayList<String>();<a name="90" href="#90">90</a> metadata.add(<span class="string">"Made from "</span> + reader.getReaderIdentifier() + <span class="string">" by "</span> +<a name="91" href="#91">91</a> <strong>this</strong>.getClass().getName() + <span class="string">"/"</span> + getRevision());<a name="92" href="#92">92</a> <a href="../../../org/archive/io/arc/ARCWriter.html">ARCWriter</a> writer = <strong>new</strong> <a href="../../../org/archive/io/arc/ARCWriter.html">ARCWriter</a>(<strong>new</strong> AtomicInteger(),<a name="93" href="#93">93</a> Arrays.asList(<strong>new</strong> File [] {dir}), prefix, suffix,<a name="94" href="#94">94</a> reader.isCompressed(), -1, metadata);<a name="95" href="#95">95</a> transform(reader, writer);<a name="96" href="#96">96</a> }<a name="97" href="#97">97</a> <a name="98" href="#98">98</a> <strong>protected</strong> <strong>void</strong> transform(<strong>final</strong> <a href="../../../org/archive/io/warc/WARCReader.html">WARCReader</a> reader, <strong>final</strong> <a href="../../../org/archive/io/arc/ARCWriter.html">ARCWriter</a> writer)<a name="99" href="#99">99</a> throws IOException, java.text.ParseException {<a name="100" href="#100">100</a> <em class="comment">// No point digesting. Digest is available after reading of ARC which</em><a name="101" href="#101">101</a> <em class="comment">// is too late for inclusion in WARC.</em><a name="102" href="#102">102</a> reader.setDigest(false);<a name="103" href="#103">103</a> <em class="comment">// I don't want the close being logged -- least, not w/o log of</em><a name="104" href="#104">104</a> <em class="comment">// an opening (and that'd be a little silly for simple script</em><a name="105" href="#105">105</a> <em class="comment">// like this). Currently, it logs at level INFO so that close</em><a name="106" href="#106">106</a> <em class="comment">// of files gets written to log files. Up the log level just</em><a name="107" href="#107">107</a> <em class="comment">// for the close.</em><a name="108" href="#108">108</a> Logger l = Logger.getLogger(writer.getClass().getName());<a name="109" href="#109">109</a> Level oldLevel = l.getLevel();<a name="110" href="#110">110</a> <strong>try</strong> {<a name="111" href="#111">111</a> l.setLevel(Level.WARNING);<a name="112" href="#112">112</a> <strong>for</strong> (<strong>final</strong> Iterator i = reader.iterator(); i.hasNext();) {<a name="113" href="#113">113</a> <a href="../../../org/archive/io/warc/WARCRecord.html">WARCRecord</a> r = (WARCRecord)i.next();⌨️ 快捷键说明
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