archivereader.html

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<a name="308" href="#308">308</a>     <strong>public</strong> <strong>boolean</strong> isStrict() {
<a name="309" href="#309">309</a>         <strong>return</strong> <strong>this</strong>.strict;
<a name="310" href="#310">310</a>     }
<a name="311" href="#311">311</a> 
<a name="312" href="#312">312</a>     <em>/**<em>*</em></em>
<a name="313" href="#313">313</a> <em>     * @param s The strict to set.</em>
<a name="314" href="#314">314</a> <em>     */</em>
<a name="315" href="#315">315</a>     <strong>public</strong> <strong>void</strong> setStrict(<strong>boolean</strong> s) {
<a name="316" href="#316">316</a>         <strong>this</strong>.strict = s;
<a name="317" href="#317">317</a>     }
<a name="318" href="#318">318</a> 
<a name="319" href="#319">319</a>     <em>/**<em>*</em></em>
<a name="320" href="#320">320</a> <em>     * @param d True if we're to digest.</em>
<a name="321" href="#321">321</a> <em>     */</em>
<a name="322" href="#322">322</a>     <strong>public</strong> <strong>void</strong> setDigest(<strong>boolean</strong> d) {
<a name="323" href="#323">323</a>         <strong>this</strong>.digest = d;
<a name="324" href="#324">324</a>     }
<a name="325" href="#325">325</a> 
<a name="326" href="#326">326</a>     <em>/**<em>*</em></em>
<a name="327" href="#327">327</a> <em>     * @return True if we're digesting as we read.</em>
<a name="328" href="#328">328</a> <em>     */</em>
<a name="329" href="#329">329</a>     <strong>public</strong> <strong>boolean</strong> isDigest() {
<a name="330" href="#330">330</a>         <strong>return</strong> <strong>this</strong>.digest;
<a name="331" href="#331">331</a>     }
<a name="332" href="#332">332</a>  
<a name="333" href="#333">333</a>     <strong>protected</strong> Logger getLogger() {
<a name="334" href="#334">334</a>         <strong>return</strong> Logger.getLogger(<strong>this</strong>.getClass().getName());
<a name="335" href="#335">335</a>     }
<a name="336" href="#336">336</a>     
<a name="337" href="#337">337</a>     <strong>protected</strong> InputStream getInputStream() {
<a name="338" href="#338">338</a>         <strong>return</strong> <strong>this</strong>.in;
<a name="339" href="#339">339</a>     }
<a name="340" href="#340">340</a>     
<a name="341" href="#341">341</a>     <em>/**<em>*</em></em>
<a name="342" href="#342">342</a> <em>     * Returns an ArchiveRecord iterator.</em>
<a name="343" href="#343">343</a> <em>     * Of note, on IOException, especially if ZipException reading compressed</em>
<a name="344" href="#344">344</a> <em>     * ARCs, rather than fail the iteration, try moving to the next record.</em>
<a name="345" href="#345">345</a> <em>     * If {@link ArchiveReader#strict} is not set, this will usually succeed.</em>
<a name="346" href="#346">346</a> <em>     * @return An iterator over ARC records.</em>
<a name="347" href="#347">347</a> <em>     */</em>
<a name="348" href="#348">348</a>     <strong>public</strong> Iterator&lt;ArchiveRecord> iterator() {
<a name="349" href="#349">349</a>         <em class="comment">// Eat up any record outstanding.</em>
<a name="350" href="#350">350</a>         <strong>try</strong> {
<a name="351" href="#351">351</a>             cleanupCurrentRecord();
<a name="352" href="#352">352</a>         } <strong>catch</strong> (IOException e) {
<a name="353" href="#353">353</a>             <strong>throw</strong> <strong>new</strong> RuntimeException(e);
<a name="354" href="#354">354</a>         }
<a name="355" href="#355">355</a>         
<a name="356" href="#356">356</a>         <em class="comment">// Now reset stream to the start of the arc file.</em>
<a name="357" href="#357">357</a>         <strong>try</strong> {
<a name="358" href="#358">358</a>             rewind();
<a name="359" href="#359">359</a>         } <strong>catch</strong> (IOException e) {
<a name="360" href="#360">360</a>             <strong>throw</strong> <strong>new</strong> RuntimeException(e);
<a name="361" href="#361">361</a>         }
<a name="362" href="#362">362</a>         <strong>return</strong> <strong>new</strong> ArchiveRecordIterator();
<a name="363" href="#363">363</a>     }
<a name="364" href="#364">364</a> 
<a name="365" href="#365">365</a> 	<strong>protected</strong> <strong>void</strong> setCompressed(<strong>boolean</strong> compressed) {
<a name="366" href="#366">366</a> 		<strong>this</strong>.compressed = compressed;
<a name="367" href="#367">367</a> 	}
<a name="368" href="#368">368</a> 
<a name="369" href="#369">369</a>     <em>/**<em>*</em></em>
<a name="370" href="#370">370</a> <em>     * @return The current ARC record or null if none.</em>
<a name="371" href="#371">371</a> <em>     * After construction has the arcfile header record.</em>
<a name="372" href="#372">372</a> <em>     * @see #get()</em>
<a name="373" href="#373">373</a> <em>     */</em>
<a name="374" href="#374">374</a> 	<strong>protected</strong> <a href="../../../org/archive/io/ArchiveRecord.html">ArchiveRecord</a> getCurrentRecord() {
<a name="375" href="#375">375</a> 		<strong>return</strong> <strong>this</strong>.currentRecord;
<a name="376" href="#376">376</a> 	}
<a name="377" href="#377">377</a> 
<a name="378" href="#378">378</a> 	<strong>protected</strong> <a href="../../../org/archive/io/ArchiveRecord.html">ArchiveRecord</a> currentRecord(<strong>final</strong> <a href="../../../org/archive/io/ArchiveRecord.html">ArchiveRecord</a> currentRecord) {
<a name="379" href="#379">379</a> 		<strong>this</strong>.currentRecord = currentRecord;
<a name="380" href="#380">380</a>         <strong>return</strong> currentRecord;
<a name="381" href="#381">381</a> 	}
<a name="382" href="#382">382</a> 
<a name="383" href="#383">383</a> 	<strong>protected</strong> InputStream getIn() {
<a name="384" href="#384">384</a> 		<strong>return</strong> in;
<a name="385" href="#385">385</a> 	}
<a name="386" href="#386">386</a> 
<a name="387" href="#387">387</a> 	<strong>protected</strong> <strong>void</strong> setIn(InputStream in) {
<a name="388" href="#388">388</a> 		<strong>this</strong>.in = in;
<a name="389" href="#389">389</a> 	}
<a name="390" href="#390">390</a> 
<a name="391" href="#391">391</a> 	<strong>protected</strong> <strong>void</strong> setVersion(String version) {
<a name="392" href="#392">392</a> 		<strong>this</strong>.version = version;
<a name="393" href="#393">393</a> 	}
<a name="394" href="#394">394</a> 
<a name="395" href="#395">395</a> 	<strong>public</strong> String getReaderIdentifier() {
<a name="396" href="#396">396</a> 		<strong>return</strong> <strong>this</strong>.identifier;
<a name="397" href="#397">397</a> 	}
<a name="398" href="#398">398</a> 
<a name="399" href="#399">399</a> 	<strong>protected</strong> <strong>void</strong> setReaderIdentifier(<strong>final</strong> String i) {
<a name="400" href="#400">400</a> 		<strong>this</strong>.identifier = i;
<a name="401" href="#401">401</a> 	}
<a name="402" href="#402">402</a> 	
<a name="403" href="#403">403</a>     <em>/**<em>*</em></em>
<a name="404" href="#404">404</a> <em>     * Log on stderr.</em>
<a name="405" href="#405">405</a> <em>     * Logging should go via the logging system.  This method</em>
<a name="406" href="#406">406</a> <em>     * bypasses the logging system going direct to stderr.</em>
<a name="407" href="#407">407</a> <em>     * Should not generally be used.  Its used for rare messages</em>
<a name="408" href="#408">408</a> <em>     * that come of cmdline usage of ARCReader ERRORs and WARNINGs.</em>
<a name="409" href="#409">409</a> <em>     * Override if using ARCReader in a context where no stderr or</em>
<a name="410" href="#410">410</a> <em>     * where you'd like to redirect stderr to other than System.err.</em>
<a name="411" href="#411">411</a> <em>     * @param level Level to log message at.</em>
<a name="412" href="#412">412</a> <em>     * @param message Message to log.</em>
<a name="413" href="#413">413</a> <em>     */</em>
<a name="414" href="#414">414</a>     <strong>public</strong> <strong>void</strong> logStdErr(Level level, String message) {
<a name="415" href="#415">415</a>         System.err.println(level.toString() + <span class="string">" "</span> + message);
<a name="416" href="#416">416</a>     }
<a name="417" href="#417">417</a>     
<a name="418" href="#418">418</a>     <em>/**<em>*</em></em>
<a name="419" href="#419">419</a> <em>     * Add buffering to RandomAccessInputStream.</em>
<a name="420" href="#420">420</a> <em>     */</em>
<a name="421" href="#421">421</a>     <strong>protected</strong> <strong>class</strong> RandomAccessBufferedInputStream
<a name="422" href="#422">422</a>     <strong>extends</strong> BufferedInputStream implements RepositionableStream {
<a name="423" href="#423">423</a> 
<a name="424" href="#424">424</a>         <strong>public</strong> RandomAccessBufferedInputStream(<a href="../../../org/archive/io/RandomAccessInputStream.html">RandomAccessInputStream</a> is)
<a name="425" href="#425">425</a>         		throws IOException {
<a name="426" href="#426">426</a>             <strong>super</strong>(is);
<a name="427" href="#427">427</a>         }
<a name="428" href="#428">428</a> 
<a name="429" href="#429">429</a>         <strong>public</strong> RandomAccessBufferedInputStream(<a href="../../../org/archive/io/RandomAccessInputStream.html">RandomAccessInputStream</a> is, <strong>int</strong> size)
<a name="430" href="#430">430</a>         		throws IOException {
<a name="431" href="#431">431</a>             <strong>super</strong>(is, size);
<a name="432" href="#432">432</a>         }
<a name="433" href="#433">433</a> 
<a name="434" href="#434">434</a>         <strong>public</strong> <strong>long</strong> position() throws IOException {
<a name="435" href="#435">435</a>             <em class="comment">// Current position is the underlying files position</em>
<a name="436" href="#436">436</a>             <em class="comment">// minus the amount thats in the buffer yet to be read.</em>
<a name="437" href="#437">437</a>             <strong>return</strong> ((RandomAccessInputStream)<strong>this</strong>.in).position() -
<a name="438" href="#438">438</a>             	(<strong>this</strong>.count - <strong>this</strong>.pos);
<a name="439" href="#439">439</a>         }
<a name="440" href="#440">440</a> 
<a name="441" href="#441">441</a>         <strong>public</strong> <strong>void</strong> position(<strong>long</strong> position) throws IOException {
<a name="442" href="#442">442</a>             <em class="comment">// Force refill of buffer whenever there's been a seek.</em>
<a name="443" href="#443">443</a>             <strong>this</strong>.pos = 0;
<a name="444" href="#444">444</a>             <strong>this</strong>.count = 0;
<a name="445" href="#445">445</a>             ((<a href="../../../org/archive/io/RandomAccessInputStream.html">RandomAccessInputStream</a>)<strong>this</strong>.in).position(position);
<a name="446" href="#446">446</a>         }
<a name="447" href="#447">447</a>     }
<a name="448" href="#448">448</a>     
<a name="449" href="#449">449</a>     <em>/**<em>*</em></em>
<a name="450" href="#450">450</a> <em>     * Inner ArchiveRecord Iterator class.</em>
<a name="451" href="#451">451</a> <em>     * Throws RuntimeExceptions in {@link #hasNext()} and {@link #next()} if</em>
<a name="452" href="#452">452</a> <em>     * trouble pulling record from underlying stream.</em>
<a name="453" href="#453">453</a> <em>     * @author stack</em>
<a name="454" href="#454">454</a> <em>     */</em>
<a name="455" href="#455">455</a>     <strong>protected</strong> <strong>class</strong> ArchiveRecordIterator implements Iterator&lt;ArchiveRecord> {
<a name="456" href="#456">456</a>         <strong>private</strong> <strong>final</strong> Logger logger =
<a name="457" href="#457">457</a>             Logger.getLogger(<strong>this</strong>.getClass().getName());
<a name="458" href="#458">458</a>         <em>/**<em>*</em></em>
<a name="459" href="#459">459</a> <em>         * @return True if we have more records to read.</em>
<a name="460" href="#460">460</a> <em>         * @exception RuntimeException Can throw an IOException wrapped in a</em>
<a name="461" href="#461">461</a> <em>         * RuntimeException if a problem reading underlying stream (Corrupted</em>
<a name="462" href="#462">462</a> <em>         * gzip, etc.).</em>
<a name="463" href="#463">463</a> <em>         */</em>
<a name="464" href="#464">464</a>         <strong>public</strong> <strong>boolean</strong> hasNext() {
<a name="465" href="#465">465</a>             <em class="comment">// Call close on any extant record.  This will scoot us past</em>