warc2arc.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="114" href="#114">114</a>                <strong>if</strong> (!isARCType(r.getHeader().getMimetype())) {
<a name="115" href="#115">115</a>                    <strong>continue</strong>;
<a name="116" href="#116">116</a>                }
<a name="117" href="#117">117</a>                <strong>if</strong> (r.getHeader().getContentBegin() &lt;= 0) {
<a name="118" href="#118">118</a>                    <em class="comment">// Otherwise, because length include Header-Line and</em>
<a name="119" href="#119">119</a>                    <em class="comment">// Named Fields, these will end up in the ARC unless there</em>
<a name="120" href="#120">120</a>                    <em class="comment">// is a non-zero content begin.</em>
<a name="121" href="#121">121</a>                    <strong>continue</strong>;
<a name="122" href="#122">122</a>                }
<a name="123" href="#123">123</a>                String ip = (String)r.getHeader().
<a name="124" href="#124">124</a>                    getHeaderValue((WARCConstants.NAMED_FIELD_IP_LABEL));
<a name="125" href="#125">125</a>                <strong>long</strong> length = r.getHeader().getLength();
<a name="126" href="#126">126</a>                <strong>int</strong> offset = r.getHeader().getContentBegin();
<a name="127" href="#127">127</a>                <em class="comment">// This mimetype is not exactly what you'd expect to find in</em>
<a name="128" href="#128">128</a>                <em class="comment">// an ARC though technically its 'correct'.  To get right one,</em>
<a name="129" href="#129">129</a>                <em class="comment">// need to parse the HTTP Headers.  Thats messy.  Not doing for</em>
<a name="130" href="#130">130</a>                <em class="comment">// now.</em>
<a name="131" href="#131">131</a>                String mimetype = r.getHeader().getMimetype();
<a name="132" href="#132">132</a>                <strong>long</strong> time = ArchiveUtils.getSecondsSinceEpoch(r.getHeader().
<a name="133" href="#133">133</a>                    getDate()).getTime();
<a name="134" href="#134">134</a>                writer.write(r.getHeader().getUrl(), mimetype, ip, time,
<a name="135" href="#135">135</a>                    (<strong>int</strong>)(length - offset), r);
<a name="136" href="#136">136</a> 		   }
<a name="137" href="#137">137</a> 	   } <strong>finally</strong> {
<a name="138" href="#138">138</a> 		   <strong>if</strong> (reader != <strong>null</strong>) {
<a name="139" href="#139">139</a> 			   reader.close();
<a name="140" href="#140">140</a> 		   }
<a name="141" href="#141">141</a> 		   <strong>if</strong> (writer != <strong>null</strong>) {
<a name="142" href="#142">142</a> 			   <strong>try</strong> {
<a name="143" href="#143">143</a> 				   writer.close();
<a name="144" href="#144">144</a> 			   } <strong>finally</strong> {
<a name="145" href="#145">145</a> 				   l.setLevel(oldLevel);
<a name="146" href="#146">146</a> 			   }
<a name="147" href="#147">147</a> 		   }
<a name="148" href="#148">148</a> 	   }
<a name="149" href="#149">149</a>    }
<a name="150" href="#150">150</a>    
<a name="151" href="#151">151</a>    <strong>protected</strong> <strong>boolean</strong> isARCType(<strong>final</strong> String mimetype) {
<a name="152" href="#152">152</a>        <em class="comment">// Comparing mimetypes, especially WARC types can be problematic since</em>
<a name="153" href="#153">153</a>        <em class="comment">// they have whitespace.  For now, ignore.</em>
<a name="154" href="#154">154</a>        <strong>if</strong> (mimetype == <strong>null</strong> || mimetype.length() &lt;= 0) {
<a name="155" href="#155">155</a>            <strong>return</strong> false;
<a name="156" href="#156">156</a>        }
<a name="157" href="#157">157</a>        String cleaned = mimetype.toLowerCase().trim();
<a name="158" href="#158">158</a>        <strong>if</strong> (cleaned.equals(WARCConstants.HTTP_RESPONSE_MIMETYPE) ||
<a name="159" href="#159">159</a>                cleaned.equals(<span class="string">"text/dns"</span>)) {
<a name="160" href="#160">160</a>            <strong>return</strong> <strong>true</strong>;
<a name="161" href="#161">161</a>        }
<a name="162" href="#162">162</a>        <strong>return</strong> false;
<a name="163" href="#163">163</a>    }
<a name="164" href="#164">164</a> 
<a name="165" href="#165">165</a>    <em>/**<em>*</em></em>
<a name="166" href="#166">166</a> <em>    * Command-line interface to Arc2Warc.</em>
<a name="167" href="#167">167</a> <em>    *</em>
<a name="168" href="#168">168</a> <em>    * @param args Command-line arguments.</em>
<a name="169" href="#169">169</a> <em>    * @throws ParseException Failed parse of the command line.</em>
<a name="170" href="#170">170</a> <em>    * @throws IOException</em>
<a name="171" href="#171">171</a> <em>    * @throws java.text.ParseException</em>
<a name="172" href="#172">172</a> <em>    */</em>
<a name="173" href="#173">173</a>    <strong>public</strong> <strong>static</strong> <strong>void</strong> main(String [] args)
<a name="174" href="#174">174</a>    throws ParseException, IOException, java.text.ParseException {
<a name="175" href="#175">175</a>        Options options = <strong>new</strong> Options();
<a name="176" href="#176">176</a>        options.addOption(<strong>new</strong> Option(<span class="string">"h"</span>,<span class="string">"help"</span>, false,
<a name="177" href="#177">177</a>            <span class="string">"Prints this message and exits."</span>));
<a name="178" href="#178">178</a>        options.addOption(<strong>new</strong> Option(<span class="string">"f"</span>,<span class="string">"force"</span>, false,
<a name="179" href="#179">179</a>        	   <span class="string">"Force overwrite of target file."</span>));
<a name="180" href="#180">180</a>        options.addOption(<strong>new</strong> Option(<span class="string">"p"</span>,<span class="string">"prefix"</span>, <strong>true</strong>,
<a name="181" href="#181">181</a>            <span class="string">"Prefix to use on created ARC files, else uses default."</span>));
<a name="182" href="#182">182</a>        options.addOption(<strong>new</strong> Option(<span class="string">"s"</span>,<span class="string">"suffix"</span>, <strong>true</strong>,
<a name="183" href="#183">183</a>            <span class="string">"Suffix to use on created ARC files, else uses default."</span>));
<a name="184" href="#184">184</a>        PosixParser parser = <strong>new</strong> PosixParser();
<a name="185" href="#185">185</a>        CommandLine cmdline = parser.parse(options, args, false);
<a name="186" href="#186">186</a>        List cmdlineArgs = cmdline.getArgList();
<a name="187" href="#187">187</a>        Option [] cmdlineOptions = cmdline.getOptions();
<a name="188" href="#188">188</a>        HelpFormatter formatter = <strong>new</strong> HelpFormatter();
<a name="189" href="#189">189</a>        
<a name="190" href="#190">190</a>        <em class="comment">// If no args, print help.</em>
<a name="191" href="#191">191</a>        <strong>if</strong> (cmdlineOptions.length &lt; 0) {
<a name="192" href="#192">192</a>            usage(formatter, options, 0);
<a name="193" href="#193">193</a>        }
<a name="194" href="#194">194</a> 
<a name="195" href="#195">195</a>        <em class="comment">// Now look at options passed.</em>
<a name="196" href="#196">196</a>        <strong>boolean</strong> force = false;
<a name="197" href="#197">197</a>        String prefix = <span class="string">"WARC2ARC"</span>;
<a name="198" href="#198">198</a>        String suffix = <strong>null</strong>;
<a name="199" href="#199">199</a>        <strong>for</strong> (<strong>int</strong> i = 0; i &lt; cmdlineOptions.length; i++) {
<a name="200" href="#200">200</a>            <strong>switch</strong>(cmdlineOptions[i].getId()) {
<a name="201" href="#201">201</a>                <strong>case</strong> 'h':
<a name="202" href="#202">202</a>                    usage(formatter, options, 0);
<a name="203" href="#203">203</a>                    <strong>break</strong>;
<a name="204" href="#204">204</a>                    
<a name="205" href="#205">205</a>                <strong>case</strong> 'f':
<a name="206" href="#206">206</a>                    force = <strong>true</strong>;
<a name="207" href="#207">207</a>                    <strong>break</strong>;
<a name="208" href="#208">208</a>                    
<a name="209" href="#209">209</a>                <strong>case</strong> 'p':
<a name="210" href="#210">210</a>                    prefix = cmdlineOptions[i].getValue();
<a name="211" href="#211">211</a>                    <strong>break</strong>;
<a name="212" href="#212">212</a>                    
<a name="213" href="#213">213</a>                <strong>case</strong> 's':
<a name="214" href="#214">214</a>                    suffix = cmdlineOptions[i].getValue();
<a name="215" href="#215">215</a>                    <strong>break</strong>;
<a name="216" href="#216">216</a>                    
<a name="217" href="#217">217</a>                <strong>default</strong>:
<a name="218" href="#218">218</a>                    <strong>throw</strong> <strong>new</strong> RuntimeException(<span class="string">"Unexpected option: "</span> +
<a name="219" href="#219">219</a>                        + cmdlineOptions[i].getId());
<a name="220" href="#220">220</a>            }
<a name="221" href="#221">221</a>        }
<a name="222" href="#222">222</a>        
<a name="223" href="#223">223</a>        <em class="comment">// If no args, print help.</em>
<a name="224" href="#224">224</a>        <strong>if</strong> (cmdlineArgs.size() != 2) {
<a name="225" href="#225">225</a>            usage(formatter, options, 0);
<a name="226" href="#226">226</a>        }
<a name="227" href="#227">227</a>        (<strong>new</strong> Warc2Arc()).transform(<strong>new</strong> File(cmdlineArgs.get(0).toString()),
<a name="228" href="#228">228</a>            <strong>new</strong> File(cmdlineArgs.get(1).toString()), prefix, suffix, force);
<a name="229" href="#229">229</a>    }
<a name="230" href="#230">230</a> }
</pre>
<hr/><div id="footer">This page was automatically generated by <a href="http://maven.apache.org/">Maven</a></div></body>
</html>