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<a name="167" href="#167">167</a>         readFullyToFile(is, toFile, <strong>new</strong> byte[4096]);
<a name="168" href="#168">168</a>     }
<a name="169" href="#169">169</a>     
<a name="170" href="#170">170</a>     <em>/**<em>*</em></em>
<a name="171" href="#171">171</a> <em>     * Read the entire stream to EOF into the passed file.</em>
<a name="172" href="#172">172</a> <em>     * Closes &lt;code>is&lt;/code> when done or if an exception.</em>
<a name="173" href="#173">173</a> <em>     * @param is Stream to read.</em>
<a name="174" href="#174">174</a> <em>     * @param toFile File to read into .</em>
<a name="175" href="#175">175</a> <em>     * @param buffer Buffer to use reading.</em>
<a name="176" href="#176">176</a> <em>     * @return Count of bytes read.</em>
<a name="177" href="#177">177</a> <em>     * @throws IOException</em>
<a name="178" href="#178">178</a> <em>     */</em>
<a name="179" href="#179">179</a>     <strong>public</strong> <strong>static</strong> <strong>long</strong> readFullyToFile(<strong>final</strong> InputStream is, <strong>final</strong> File toFile,
<a name="180" href="#180">180</a>             <strong>final</strong> byte [] buffer)
<a name="181" href="#181">181</a>     throws IOException {
<a name="182" href="#182">182</a>         <strong>long</strong> totalcount = -1;
<a name="183" href="#183">183</a>         OutputStream os =
<a name="184" href="#184">184</a>             <strong>new</strong> FastBufferedOutputStream(<strong>new</strong> FileOutputStream(toFile));
<a name="185" href="#185">185</a>         InputStream localIs = (is instanceof BufferedInputStream)?
<a name="186" href="#186">186</a>             is: <strong>new</strong> BufferedInputStream(is);
<a name="187" href="#187">187</a>         <strong>try</strong> {
<a name="188" href="#188">188</a>             <strong>for</strong> (<strong>int</strong> count = -1;
<a name="189" href="#189">189</a>                 (count = localIs.read(buffer, 0, buffer.length)) != -1;
<a name="190" href="#190">190</a>                     totalcount += count) {
<a name="191" href="#191">191</a>                 os.write(buffer, 0, count);  
<a name="192" href="#192">192</a>             }
<a name="193" href="#193">193</a>         } <strong>finally</strong> {
<a name="194" href="#194">194</a>             os.close();
<a name="195" href="#195">195</a>             <strong>if</strong> (localIs != <strong>null</strong>) {
<a name="196" href="#196">196</a>                 localIs.close();
<a name="197" href="#197">197</a>             }
<a name="198" href="#198">198</a>         }
<a name="199" href="#199">199</a>         <strong>return</strong> totalcount;
<a name="200" href="#200">200</a>     }
<a name="201" href="#201">201</a> 
<a name="202" href="#202">202</a>     <em>/**<em>*</em></em>
<a name="203" href="#203">203</a> <em>     * Wrap generic Throwable as a checked IOException</em>
<a name="204" href="#204">204</a> <em>     * @param e wrapped exception</em>
<a name="205" href="#205">205</a> <em>     * @return IOException</em>
<a name="206" href="#206">206</a> <em>     */</em>
<a name="207" href="#207">207</a>     <strong>public</strong> <strong>static</strong> IOException wrapAsIOException(Throwable e) {
<a name="208" href="#208">208</a>         IOException ioe = <strong>new</strong> IOException(e.toString());
<a name="209" href="#209">209</a>         ioe.initCause(e);
<a name="210" href="#210">210</a>         <strong>return</strong> ioe;
<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>     <strong>public</strong> <strong>static</strong> <strong>void</strong> readFully(InputStream input, byte[] buf) 
<a name="215" href="#215">215</a>     throws IOException {
<a name="216" href="#216">216</a>         <strong>int</strong> max = buf.length;
<a name="217" href="#217">217</a>         <strong>int</strong> ofs = 0;
<a name="218" href="#218">218</a>         <strong>while</strong> (ofs &lt; max) {
<a name="219" href="#219">219</a>             <strong>int</strong> l = input.read(buf, ofs, max - ofs);
<a name="220" href="#220">220</a>             <strong>if</strong> (l == 0) {
<a name="221" href="#221">221</a>                 <strong>throw</strong> <strong>new</strong> EOFException();
<a name="222" href="#222">222</a>             }
<a name="223" href="#223">223</a>             ofs += l;
<a name="224" href="#224">224</a>         }
<a name="225" href="#225">225</a>     }
<a name="226" href="#226">226</a>     
<a name="227" href="#227">227</a>     <em>/**<em>*</em></em>
<a name="228" href="#228">228</a> <em>     * Return the maximum number of bytes per character in the named</em>
<a name="229" href="#229">229</a> <em>     * encoding, or 0 if encoding is invalid or unsupported. </em>
<a name="230" href="#230">230</a> <em>     *</em>
<a name="231" href="#231">231</a> <em>     * @param encoding Encoding to consider.  For now, should be java </em>
<a name="232" href="#232">232</a> <em>     * canonical name for the encoding.</em>
<a name="233" href="#233">233</a> <em>     *</em>
<a name="234" href="#234">234</a> <em>     * @return True if multibyte encoding.</em>
<a name="235" href="#235">235</a> <em>     */</em>
<a name="236" href="#236">236</a>     <strong>public</strong> <strong>static</strong> <strong>float</strong> encodingMaxBytesPerChar(String encoding) {
<a name="237" href="#237">237</a>         <strong>boolean</strong> isMultibyte = false;
<a name="238" href="#238">238</a>         <strong>final</strong> Charset cs;
<a name="239" href="#239">239</a>         <strong>try</strong> {
<a name="240" href="#240">240</a>             <strong>if</strong> (encoding != <strong>null</strong> &amp;&amp; encoding.length() > 0) {
<a name="241" href="#241">241</a>                 cs = Charset.forName(encoding);
<a name="242" href="#242">242</a>                 <strong>if</strong>(cs.canEncode()) {
<a name="243" href="#243">243</a>                     <strong>return</strong> cs.newEncoder().maxBytesPerChar();
<a name="244" href="#244">244</a>                 } <strong>else</strong> {
<a name="245" href="#245">245</a>                     logger.info(<span class="string">"Encoding not fully supported: "</span> + encoding
<a name="246" href="#246">246</a>                             + <span class="string">".  Defaulting to single byte."</span>);
<a name="247" href="#247">247</a>                 }
<a name="248" href="#248">248</a>             }
<a name="249" href="#249">249</a>         } <strong>catch</strong> (IllegalArgumentException e) {
<a name="250" href="#250">250</a>             <em class="comment">// Unsupported encoding</em>
<a name="251" href="#251">251</a>             logger.log(Level.INFO,<span class="string">"Illegal encoding name: "</span> + encoding,e);
<a name="252" href="#252">252</a>         }
<a name="253" href="#253">253</a> 
<a name="254" href="#254">254</a>         logger.fine(<span class="string">"Encoding "</span> + encoding + <span class="string">" is multibyte: "</span>
<a name="255" href="#255">255</a>             + ((isMultibyte) ? Boolean.TRUE : Boolean.FALSE));
<a name="256" href="#256">256</a>         <em class="comment">// default: return 0</em>
<a name="257" href="#257">257</a>         <strong>return</strong> 0;
<a name="258" href="#258">258</a>     }
<a name="259" href="#259">259</a> 
<a name="260" href="#260">260</a>     <em>/**<em>*</em></em>
<a name="261" href="#261">261</a> <em>     * Utility method to serialize an object to the given File. </em>
<a name="262" href="#262">262</a> <em>     * </em>
<a name="263" href="#263">263</a> <em>     * @param object Object to serialize</em>
<a name="264" href="#264">264</a> <em>     * @param file File to receive serialized copy</em>
<a name="265" href="#265">265</a> <em>     * @throws IOException</em>
<a name="266" href="#266">266</a> <em>     */</em>
<a name="267" href="#267">267</a>     <strong>public</strong> <strong>static</strong> <strong>void</strong> serializeToFile(Object object, File file) throws IOException {
<a name="268" href="#268">268</a>         ObjectOutputStream oos = <strong>new</strong> ObjectOutputStream(<strong>new</strong> BufferedOutputStream(<strong>new</strong> FileOutputStream(file)));
<a name="269" href="#269">269</a>         oos.writeObject(object);
<a name="270" href="#270">270</a>         oos.close();
<a name="271" href="#271">271</a>     }
<a name="272" href="#272">272</a> 
<a name="273" href="#273">273</a>     <em>/**<em>*</em></em>
<a name="274" href="#274">274</a> <em>     * Utility method to deserialize an Object from given File. </em>
<a name="275" href="#275">275</a> <em>     * </em>
<a name="276" href="#276">276</a> <em>     * @param file File source</em>
<a name="277" href="#277">277</a> <em>     * @return deserialized Object</em>
<a name="278" href="#278">278</a> <em>     * @throws IOException</em>
<a name="279" href="#279">279</a> <em>     */</em>
<a name="280" href="#280">280</a>     <strong>public</strong> <strong>static</strong> Object deserializeFromFile(File file) throws IOException {
<a name="281" href="#281">281</a>         ObjectInputStream ois = <strong>new</strong> ObjectInputStream(<strong>new</strong> BufferedInputStream(<strong>new</strong> FileInputStream(file)));
<a name="282" href="#282">282</a>         Object object;
<a name="283" href="#283">283</a>         <strong>try</strong> {
<a name="284" href="#284">284</a>             object = ois.readObject();
<a name="285" href="#285">285</a>         } <strong>catch</strong> (ClassNotFoundException e) {
<a name="286" href="#286">286</a>             <em class="comment">// TODO Auto-generated catch block</em>
<a name="287" href="#287">287</a>             <strong>throw</strong> <strong>new</strong> RuntimeException(e);
<a name="288" href="#288">288</a>         }
<a name="289" href="#289">289</a>         ois.close();
<a name="290" href="#290">290</a>         <strong>return</strong> object;
<a name="291" href="#291">291</a>     }
<a name="292" href="#292">292</a>     
<a name="293" href="#293">293</a>     <em>/**<em>*</em></em>
<a name="294" href="#294">294</a> <em>     * Utility method to serialize Object to byte[]. </em>
<a name="295" href="#295">295</a> <em>     * </em>
<a name="296" href="#296">296</a> <em>     * @param object Object to be serialized</em>
<a name="297" href="#297">297</a> <em>     * @return byte[] serialized form</em>
<a name="298" href="#298">298</a> <em>     */</em>
<a name="299" href="#299">299</a>     <strong>public</strong> <strong>static</strong> byte[] serializeToByteArray(Object object) {
<a name="300" href="#300">300</a>         ByteArrayOutputStream baos = <strong>new</strong> ByteArrayOutputStream(); 
<a name="301" href="#301">301</a>         <strong>try</strong> {
<a name="302" href="#302">302</a>             ObjectOutputStream oos = <strong>new</strong> ObjectOutputStream(baos);
<a name="303" href="#303">303</a>             oos.writeObject(object);
<a name="304" href="#304">304</a>             oos.close();
<a name="305" href="#305">305</a>         } <strong>catch</strong> (IOException e) {
<a name="306" href="#306">306</a>             <em class="comment">// shouldn't be possible</em>
<a name="307" href="#307">307</a>             <strong>throw</strong> <strong>new</strong> RuntimeException(e);
<a name="308" href="#308">308</a>         }
<a name="309" href="#309">309</a>         <strong>return</strong> baos.toByteArray();
<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>     * Utility method to deserialize Object from  byte[]. </em>
<a name="314" href="#314">314</a> <em>     * </em>
<a name="315" href="#315">315</a> <em>     * @param in byte[] source</em>
<a name="316" href="#316">316</a> <em>     * @return Object deserialized</em>
<a name="317" href="#317">317</a> <em>     */</em>
<a name="318" href="#318">318</a>     <strong>public</strong> <strong>static</strong> Object deserializeFromByteArray(byte[] in) {
<a name="319" href="#319">319</a>         Object object;
<a name="320" href="#320">320</a>         <strong>try</strong> {
<a name="321" href="#321">321</a>             ObjectInputStream ois = <strong>new</strong> ObjectInputStream(<strong>new</strong> ByteArrayInputStream(in));
<a name="322" href="#322">322</a>             <strong>try</strong> {
<a name="323" href="#323">323</a>                 object = ois.readObject();
<a name="324" href="#324">324</a>             } <strong>catch</strong> (ClassNotFoundException e) {
<a name="325" href="#325">325</a>                 <em class="comment">// TODO Auto-generated catch block</em>
<a name="326" href="#326">326</a>                 <strong>throw</strong> <strong>new</strong> RuntimeException(e);
<a name="327" href="#327">327</a>             }
<a name="328" href="#328">328</a>             ois.close();
<a name="329" href="#329">329</a>         } <strong>catch</strong> (IOException e) {
<a name="330" href="#330">330</a>             <em class="comment">// shouldn't be possible</em>
<a name="331" href="#331">331</a>             <strong>throw</strong> <strong>new</strong> RuntimeException(e);
<a name="332" href="#332">332</a>         }
<a name="333" href="#333">333</a>         <strong>return</strong> object;
<a name="334" href="#334">334</a>     }
<a name="335" href="#335">335</a> }
</pre>
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