arc2warc.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="103" href="#103">103</a> 	       <em class="comment">// Now create the writer.  If reader was compressed, lets write</em>
<a name="104" href="#104">104</a> 	       <em class="comment">// a compressed WARC.</em>
<a name="105" href="#105">105</a> 		   writer = <strong>new</strong> ExperimentalWARCWriter(<strong>null</strong>, bos, warc,
<a name="106" href="#106">106</a> 		       reader.isCompressed(), <strong>null</strong>, metadata);
<a name="107" href="#107">107</a> 		   <em class="comment">// Write a warcinfo record with description about how this WARC</em>
<a name="108" href="#108">108</a> 		   <em class="comment">// was made.</em>
<a name="109" href="#109">109</a> 		   writer.writeWarcinfoRecord(warc.getName(),
<a name="110" href="#110">110</a> 		       <span class="string">"Made from "</span> + reader.getReaderIdentifier() + <span class="string">" by "</span> +
<a name="111" href="#111">111</a> 	               <strong>this</strong>.getClass().getName() + <span class="string">"/"</span> + getRevision());
<a name="112" href="#112">112</a> 		   <strong>for</strong> (; i.hasNext();) {
<a name="113" href="#113">113</a> 			   write(writer, (ARCRecord)i.next());
<a name="114" href="#114">114</a> 		   }
<a name="115" href="#115">115</a> 	   } <strong>finally</strong> {
<a name="116" href="#116">116</a> 		   <strong>if</strong> (reader != <strong>null</strong>) {
<a name="117" href="#117">117</a> 			   reader.close();
<a name="118" href="#118">118</a> 		   }
<a name="119" href="#119">119</a> 		   <strong>if</strong> (writer != <strong>null</strong>) {
<a name="120" href="#120">120</a> 			   <em class="comment">// I don't want the close being logged -- least, not w/o log of</em>
<a name="121" href="#121">121</a> 			   <em class="comment">// an opening (and that'd be a little silly for simple script</em>
<a name="122" href="#122">122</a> 			   <em class="comment">// like this). Currently, it logs at level INFO so that close</em>
<a name="123" href="#123">123</a> 			   <em class="comment">// of files gets written to log files.  Up the log level just</em>
<a name="124" href="#124">124</a> 			   <em class="comment">// for the close.</em>
<a name="125" href="#125">125</a> 			   Logger l = Logger.getLogger(writer.getClass().getName());
<a name="126" href="#126">126</a> 			   Level oldLevel = l.getLevel();
<a name="127" href="#127">127</a> 			   l.setLevel(Level.WARNING);
<a name="128" href="#128">128</a> 			   <strong>try</strong> {
<a name="129" href="#129">129</a> 				   writer.close();
<a name="130" href="#130">130</a> 			   } <strong>finally</strong> {
<a name="131" href="#131">131</a> 				   l.setLevel(oldLevel);
<a name="132" href="#132">132</a> 			   }
<a name="133" href="#133">133</a> 		   }
<a name="134" href="#134">134</a> 	   }
<a name="135" href="#135">135</a>    }
<a name="136" href="#136">136</a>    
<a name="137" href="#137">137</a>    <strong>protected</strong> <strong>void</strong> write(<strong>final</strong> <a href="../../../org/archive/io/warc/ExperimentalWARCWriter.html">ExperimentalWARCWriter</a> writer,
<a name="138" href="#138">138</a> 		   <strong>final</strong> ARCRecord r)
<a name="139" href="#139">139</a>    throws IOException {
<a name="140" href="#140">140</a> 	   ANVLRecord ar = <strong>new</strong> ANVLRecord();
<a name="141" href="#141">141</a> 	   String ip = (String)r.getHeader().
<a name="142" href="#142">142</a> 	       getHeaderValue((ARCConstants.IP_HEADER_FIELD_KEY));
<a name="143" href="#143">143</a> 	   <strong>if</strong> (ip != <strong>null</strong> &amp;&amp; ip.length() > 0) {
<a name="144" href="#144">144</a> 		   ar.addLabelValue(WARCConstants.NAMED_FIELD_IP_LABEL, ip);
<a name="145" href="#145">145</a> 	   }
<a name="146" href="#146">146</a> 	   <em class="comment">// If contentBody > 0, assume http headers.  Make the mimetype</em>
<a name="147" href="#147">147</a> 	   <em class="comment">// be application/http.  Otherwise, give it ARC mimetype.</em>
<a name="148" href="#148">148</a> 	   writer.writeResourceRecord(r.getHeader().getUrl(),
<a name="149" href="#149">149</a> 	       r.getHeader().getDate(),
<a name="150" href="#150">150</a> 	       (r.getHeader().getContentBegin() > 0)?
<a name="151" href="#151">151</a> 	    	   WARCConstants.HTTP_RESPONSE_MIMETYPE:
<a name="152" href="#152">152</a> 	    	   r.getHeader().getMimetype(),
<a name="153" href="#153">153</a> 	    	   ar, r, r.getHeader().getLength());
<a name="154" href="#154">154</a>    }
<a name="155" href="#155">155</a> 
<a name="156" href="#156">156</a>    <em>/**<em>*</em></em>
<a name="157" href="#157">157</a> <em>    * Command-line interface to Arc2Warc.</em>
<a name="158" href="#158">158</a> <em>    *</em>
<a name="159" href="#159">159</a> <em>    * @param args Command-line arguments.</em>
<a name="160" href="#160">160</a> <em>    * @throws ParseException Failed parse of the command line.</em>
<a name="161" href="#161">161</a> <em>    * @throws IOException</em>
<a name="162" href="#162">162</a> <em>    * @throws java.text.ParseException</em>
<a name="163" href="#163">163</a> <em>    */</em>
<a name="164" href="#164">164</a>    <strong>public</strong> <strong>static</strong> <strong>void</strong> main(String [] args)
<a name="165" href="#165">165</a>    throws ParseException, IOException, java.text.ParseException {
<a name="166" href="#166">166</a>        Options options = <strong>new</strong> Options();
<a name="167" href="#167">167</a>        options.addOption(<strong>new</strong> Option(<span class="string">"h"</span>,<span class="string">"help"</span>, false,
<a name="168" href="#168">168</a>            <span class="string">"Prints this message and exits."</span>));
<a name="169" href="#169">169</a>        options.addOption(<strong>new</strong> Option(<span class="string">"f"</span>,<span class="string">"force"</span>, false,
<a name="170" href="#170">170</a>        	   <span class="string">"Force overwrite of target file."</span>));
<a name="171" href="#171">171</a>        PosixParser parser = <strong>new</strong> PosixParser();
<a name="172" href="#172">172</a>        CommandLine cmdline = parser.parse(options, args, false);
<a name="173" href="#173">173</a>        List cmdlineArgs = cmdline.getArgList();
<a name="174" href="#174">174</a>        Option [] cmdlineOptions = cmdline.getOptions();
<a name="175" href="#175">175</a>        HelpFormatter formatter = <strong>new</strong> HelpFormatter();
<a name="176" href="#176">176</a>        
<a name="177" href="#177">177</a>        <em class="comment">// If no args, print help.</em>
<a name="178" href="#178">178</a>        <strong>if</strong> (cmdlineOptions.length &lt;= 0) {
<a name="179" href="#179">179</a>            usage(formatter, options, 0);
<a name="180" href="#180">180</a>        }
<a name="181" href="#181">181</a> 
<a name="182" href="#182">182</a>        <em class="comment">// Now look at options passed.</em>
<a name="183" href="#183">183</a>        <strong>boolean</strong> force = false;
<a name="184" href="#184">184</a>        <strong>for</strong> (<strong>int</strong> i = 0; i &lt; cmdlineOptions.length; i++) {
<a name="185" href="#185">185</a>            <strong>switch</strong>(cmdlineOptions[i].getId()) {
<a name="186" href="#186">186</a>                <strong>case</strong> 'h':
<a name="187" href="#187">187</a>                    usage(formatter, options, 0);
<a name="188" href="#188">188</a>                    <strong>break</strong>;
<a name="189" href="#189">189</a>                    
<a name="190" href="#190">190</a>                <strong>case</strong> 'f':
<a name="191" href="#191">191</a>                    force = <strong>true</strong>;
<a name="192" href="#192">192</a>                    <strong>break</strong>;
<a name="193" href="#193">193</a>                    
<a name="194" href="#194">194</a>                <strong>default</strong>:
<a name="195" href="#195">195</a>                    <strong>throw</strong> <strong>new</strong> RuntimeException(<span class="string">"Unexpected option: "</span> +
<a name="196" href="#196">196</a>                        + cmdlineOptions[i].getId());
<a name="197" href="#197">197</a>            }
<a name="198" href="#198">198</a>        }
<a name="199" href="#199">199</a>        
<a name="200" href="#200">200</a>        <em class="comment">// If no args, print help.</em>
<a name="201" href="#201">201</a>        <strong>if</strong> (cmdlineArgs.size() != 2) {
<a name="202" href="#202">202</a>            usage(formatter, options, 0);
<a name="203" href="#203">203</a>        }
<a name="204" href="#204">204</a>        (<strong>new</strong> Arc2Warc()).transform(<strong>new</strong> File(cmdlineArgs.get(0).toString()),
<a name="205" href="#205">205</a>            <strong>new</strong> File(cmdlineArgs.get(1).toString()), force);
<a name="206" href="#206">206</a>    }
<a name="207" href="#207">207</a> }
</pre>
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