warcrecord.html

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<a name="111" href="#111">111</a>         <strong>long</strong> startPosition = -1;
<a name="112" href="#112">112</a>         <strong>if</strong> (in instanceof RepositionableStream) {
<a name="113" href="#113">113</a>             startPosition = ((RepositionableStream)in).position();
<a name="114" href="#114">114</a>         }
<a name="115" href="#115">115</a>         String firstLine =
<a name="116" href="#116">116</a>             <strong>new</strong> String(HttpParser.readLine(in, WARC_HEADER_ENCODING));
<a name="117" href="#117">117</a>         <strong>if</strong> (firstLine == <strong>null</strong> || firstLine.length() &lt;=0) {
<a name="118" href="#118">118</a>             <strong>throw</strong> <strong>new</strong> IOException(<span class="string">"Failed to read WARC_MAGIC"</span>);
<a name="119" href="#119">119</a>         }
<a name="120" href="#120">120</a>         <strong>if</strong> (!firstLine.startsWith(WARC_MAGIC)) {
<a name="121" href="#121">121</a>             <strong>throw</strong> <strong>new</strong> IOException(<span class="string">"Failed to find WARC MAGIC: "</span> + firstLine);
<a name="122" href="#122">122</a>         }
<a name="123" href="#123">123</a>         <em class="comment">// Here we start reading off the inputstream but we're reading the</em>
<a name="124" href="#124">124</a>         <em class="comment">// stream direct rather than going via WARCRecord#read.  The latter will</em>
<a name="125" href="#125">125</a>         <em class="comment">// keep count of bytes read, digest and fail properly if EOR too soon...</em>
<a name="126" href="#126">126</a>         <em class="comment">// We don't want digesting while reading Headers.</em>
<a name="127" href="#127">127</a>         <em class="comment">// </em>
<a name="128" href="#128">128</a>         Header [] h = HttpParser.parseHeaders(in, WARC_HEADER_ENCODING);
<a name="129" href="#129">129</a>         <strong>for</strong> (<strong>int</strong> i = 0; i &lt; h.length; i++) {
<a name="130" href="#130">130</a>             m.put(h[i].getName(), h[i].getValue());
<a name="131" href="#131">131</a>         }
<a name="132" href="#132">132</a>         <strong>int</strong> headerLength = -1;
<a name="133" href="#133">133</a>         <strong>if</strong> (in instanceof RepositionableStream) {
<a name="134" href="#134">134</a>             headerLength =
<a name="135" href="#135">135</a>                 (<strong>int</strong>)(((RepositionableStream)in).position() - startPosition);
<a name="136" href="#136">136</a>         }
<a name="137" href="#137">137</a>         <strong>final</strong> <strong>int</strong> contentOffset = headerLength;
<a name="138" href="#138">138</a>         incrementPosition(contentOffset);
<a name="139" href="#139">139</a>    
<a name="140" href="#140">140</a>     	<strong>return</strong> <strong>new</strong> <a href="../../../../org/archive/io/ArchiveRecordHeader.html">ArchiveRecordHeader</a>() {
<a name="141" href="#141">141</a>     		<strong>private</strong> Map&lt;Object, Object> headers = m;
<a name="142" href="#142">142</a>             <strong>private</strong> <strong>int</strong> contentBegin = contentOffset;
<a name="143" href="#143">143</a> 
<a name="144" href="#144">144</a> 			<strong>public</strong> String getDate() {
<a name="145" href="#145">145</a> 				<strong>return</strong> (String)<strong>this</strong>.headers.get(HEADER_KEY_DATE);
<a name="146" href="#146">146</a> 			}
<a name="147" href="#147">147</a> 
<a name="148" href="#148">148</a> 			<strong>public</strong> String getDigest() {
<a name="149" href="#149">149</a> 				<strong>return</strong> (String)<strong>this</strong>.headers.get(HEADER_KEY_CHECKSUM);
<a name="150" href="#150">150</a> 			}
<a name="151" href="#151">151</a> 
<a name="152" href="#152">152</a> 			<strong>public</strong> String getReaderIdentifier() {
<a name="153" href="#153">153</a> 				<strong>return</strong> (String)<strong>this</strong>.headers.get(READER_IDENTIFIER_FIELD_KEY);
<a name="154" href="#154">154</a> 			}
<a name="155" href="#155">155</a> 
<a name="156" href="#156">156</a> 			<strong>public</strong> Set getHeaderFieldKeys() {
<a name="157" href="#157">157</a> 				<strong>return</strong> <strong>this</strong>.headers.keySet();
<a name="158" href="#158">158</a> 			}
<a name="159" href="#159">159</a> 
<a name="160" href="#160">160</a> 			<strong>public</strong> Map getHeaderFields() {
<a name="161" href="#161">161</a> 				<strong>return</strong> <strong>this</strong>.headers;
<a name="162" href="#162">162</a> 			}
<a name="163" href="#163">163</a> 
<a name="164" href="#164">164</a> 			<strong>public</strong> Object getHeaderValue(String key) {
<a name="165" href="#165">165</a> 				<strong>return</strong> <strong>this</strong>.headers.get(key);
<a name="166" href="#166">166</a> 			}
<a name="167" href="#167">167</a> 
<a name="168" href="#168">168</a> 			<strong>public</strong> <strong>long</strong> getLength() {
<a name="169" href="#169">169</a> 				Object o = <strong>this</strong>.headers.get(CONTENT_LENGTH);
<a name="170" href="#170">170</a> 				<strong>if</strong> (o == <strong>null</strong>) {
<a name="171" href="#171">171</a> 					<strong>return</strong> -1;
<a name="172" href="#172">172</a> 				}
<a name="173" href="#173">173</a> 				<strong>long</strong> contentLength = (o instanceof Long)?
<a name="174" href="#174">174</a>                     ((Long)o).longValue(): Long.parseLong((String)o);
<a name="175" href="#175">175</a>                 <strong>return</strong> contentLength + contentOffset;
<a name="176" href="#176">176</a> 			}
<a name="177" href="#177">177</a> 
<a name="178" href="#178">178</a> 			<strong>public</strong> String getMimetype() {
<a name="179" href="#179">179</a> 				<strong>return</strong> (String)<strong>this</strong>.headers.get(CONTENT_TYPE);
<a name="180" href="#180">180</a> 			}
<a name="181" href="#181">181</a> 
<a name="182" href="#182">182</a> 			<strong>public</strong> <strong>long</strong> getOffset() {
<a name="183" href="#183">183</a> 				Object o = <strong>this</strong>.headers.get(ABSOLUTE_OFFSET_KEY);
<a name="184" href="#184">184</a> 				<strong>if</strong> (o == <strong>null</strong>) {
<a name="185" href="#185">185</a> 					<strong>return</strong> -1;
<a name="186" href="#186">186</a> 				}
<a name="187" href="#187">187</a> 				<strong>return</strong> (o instanceof Long)?
<a name="188" href="#188">188</a>                     ((Long)o).longValue(): Long.parseLong((String)o);
<a name="189" href="#189">189</a> 			}
<a name="190" href="#190">190</a> 
<a name="191" href="#191">191</a> 			<strong>public</strong> String getRecordIdentifier() {
<a name="192" href="#192">192</a> 				<strong>return</strong> (String)<strong>this</strong>.headers.get(RECORD_IDENTIFIER_FIELD_KEY);
<a name="193" href="#193">193</a> 			}
<a name="194" href="#194">194</a> 
<a name="195" href="#195">195</a> 			<strong>public</strong> String getUrl() {
<a name="196" href="#196">196</a> 				<strong>return</strong> (String)<strong>this</strong>.headers.get(HEADER_KEY_URI);
<a name="197" href="#197">197</a> 			}
<a name="198" href="#198">198</a> 
<a name="199" href="#199">199</a> 			<strong>public</strong> String getVersion() {
<a name="200" href="#200">200</a> 				<strong>return</strong> (String)<strong>this</strong>.headers.get(VERSION_FIELD_KEY);
<a name="201" href="#201">201</a> 			}
<a name="202" href="#202">202</a>             
<a name="203" href="#203">203</a>             <strong>public</strong> <strong>int</strong> getContentBegin() {
<a name="204" href="#204">204</a>                 <strong>return</strong> <strong>this</strong>.contentBegin;
<a name="205" href="#205">205</a>             }
<a name="206" href="#206">206</a>             
<a name="207" href="#207">207</a>             @Override
<a name="208" href="#208">208</a>             <strong>public</strong> String toString() {
<a name="209" href="#209">209</a>                 <strong>return</strong> <strong>this</strong>.headers.toString();
<a name="210" href="#210">210</a>             }
<a name="211" href="#211">211</a>     	};
<a name="212" href="#212">212</a>     }
<a name="213" href="#213">213</a>     
<a name="214" href="#214">214</a>     @Override
<a name="215" href="#215">215</a>     <strong>protected</strong> String getMimetype4Cdx(<a href="../../../../org/archive/io/ArchiveRecordHeader.html">ArchiveRecordHeader</a> h) {
<a name="216" href="#216">216</a>         <strong>final</strong> String m = <strong>super</strong>.getMimetype4Cdx(h);
<a name="217" href="#217">217</a>         <em class="comment">// Mimetypes can have spaces in WARCs.  Emitting for CDX, just</em>
<a name="218" href="#218">218</a>         <em class="comment">// squash them for now.  Later, quote them since squashing spaces won't</em>
<a name="219" href="#219">219</a>         <em class="comment">// work for params that have quoted-string values.</em>
<a name="220" href="#220">220</a>         Matcher matcher = WHITESPACE.matcher(m);
<a name="221" href="#221">221</a>         <strong>return</strong> matcher.replaceAll(<span class="string">""</span>);
<a name="222" href="#222">222</a>     }
<a name="223" href="#223">223</a> }
</pre>
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