javadoc/9.4.29.v20200521/org/eclipse/jetty/util/IO.html - www.eclipse.org/jetty - Git at Google

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 <div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.eclipse.jetty.util</a></div>
 <h2 title="Class IO" class="title">Class IO</h2>
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 <li>java.lang.Object</li>
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 <pre>public class <span class="typeNameLabel">IO</span>
 extends java.lang.Object</pre>
 <div class="block">IO Utilities.
  Provides stream handling utilities in
  singleton Threadpool implementation accessed by static members.</div>
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 <td class="colFirst"><code>static int</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#bufferSize">bufferSize</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static java.lang.String</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#CRLF">CRLF</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static byte[]</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#CRLF_BYTES">CRLF_BYTES</a></span></code></th>
 <td class="colLast">&nbsp;</td>
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 <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">IO</a></span>()</code></th>
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 <td class="colFirst"><code>static void</code></td>
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 <div class="block">closes an input stream, and logs exceptions</div>
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 <td class="colFirst"><code>static void</code></td>
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 <div class="block">closes an output stream, and logs exceptions</div>
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 <td class="colFirst"><code>static void</code></td>
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 <div class="block">closes a writer, and logs exceptions</div>
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 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#copy(java.io.InputStream,java.io.OutputStream,long)">copy</a></span>&#8203;(java.io.InputStream&nbsp;in,
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 <div class="block">Copy Stream in to Stream for byteCount bytes or until EOF or exception.</div>
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 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#copy(java.io.Reader,java.io.Writer)">copy</a></span>&#8203;(java.io.Reader&nbsp;in,
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 <div class="block">Copy Reader to Writer for byteCount bytes or until EOF or exception.</div>
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 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#copyDir(java.io.File,java.io.File)">copyDir</a></span>&#8203;(java.io.File&nbsp;from,
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 <td class="colFirst"><code>static java.io.InputStream</code></td>
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 <td class="colFirst"><code>static java.lang.String</code></td>
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 <td class="colLast">
 <div class="block">Read input stream to string.</div>
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 <td class="colFirst"><code>static java.lang.String</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toString(java.io.InputStream,java.lang.String)">toString</a></span>&#8203;(java.io.InputStream&nbsp;in,
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 <div class="block">Read input stream to string.</div>
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 <td class="colLast">
 <div class="block">Read input stream to string.</div>
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 <tr id="i21" class="rowColor">
 <td class="colFirst"><code>static java.lang.String</code></td>
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 <td class="colLast">
 <div class="block">Read input stream to string.</div>
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 <td class="colFirst"><code>static long</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#write(java.nio.channels.GatheringByteChannel,java.nio.ByteBuffer%5B%5D,int,int)">write</a></span>&#8203;(java.nio.channels.GatheringByteChannel&nbsp;out,
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      int&nbsp;offset,
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 <div class="block">Copy Stream in to Stream out until EOF or exception.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
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 <dd><code>out</code> - the output stream to write to</dd>
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 <dd><code>out</code> - the stream to write to</dd>
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 <dd><code>out</code> - the Writer to write to</dd>
 <dd><code>byteCount</code> - the number of bytes to copy</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
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 <dd><code>to</code> - the destination to copy to</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code>java.io.IOException</code> - if unable to copy</dd>
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 <h4>copyDir</h4>
 <pre class="methodSignature">public static&nbsp;void&nbsp;copyDir&#8203;(java.io.File&nbsp;from,
                            java.io.File&nbsp;to)
                     throws java.io.IOException</pre>
 <dl>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code>java.io.IOException</code></dd>
 </dl>
 </li>
 </ul>
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 <pre class="methodSignature">public static&nbsp;void&nbsp;copyFile&#8203;(java.io.File&nbsp;from,
                             java.io.File&nbsp;to)
                      throws java.io.IOException</pre>
 <dl>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code>java.io.IOException</code></dd>
 </dl>
 </li>
 </ul>
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 <h4>toString</h4>
 <pre class="methodSignature">public static&nbsp;java.lang.String&nbsp;toString&#8203;(java.io.InputStream&nbsp;in)
                                  throws java.io.IOException</pre>
 <div class="block">Read input stream to string.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>in</code> - the stream to read from (until EOF)</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the String parsed from stream (default Charset)</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code>java.io.IOException</code> - if unable to read the stream (or handle the charset)</dd>
 </dl>
 </li>
 </ul>
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 <pre class="methodSignature">public static&nbsp;java.lang.String&nbsp;toString&#8203;(java.io.InputStream&nbsp;in,
                                         java.lang.String&nbsp;encoding)
                                  throws java.io.IOException</pre>
 <div class="block">Read input stream to string.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>in</code> - the stream to read from (until EOF)</dd>
 <dd><code>encoding</code> - the encoding to use (can be null to use default Charset)</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the String parsed from the stream</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code>java.io.IOException</code> - if unable to read the stream (or handle the charset)</dd>
 </dl>
 </li>
 </ul>
 <a id="toString(java.io.InputStream,java.nio.charset.Charset)">
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 <h4>toString</h4>
 <pre class="methodSignature">public static&nbsp;java.lang.String&nbsp;toString&#8203;(java.io.InputStream&nbsp;in,
                                         java.nio.charset.Charset&nbsp;encoding)
                                  throws java.io.IOException</pre>
 <div class="block">Read input stream to string.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>in</code> - the stream to read from (until EOF)</dd>
 <dd><code>encoding</code> - the Charset to use (can be null to use default Charset)</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the String parsed from the stream</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code>java.io.IOException</code> - if unable to read the stream (or handle the charset)</dd>
 </dl>
 </li>
 </ul>
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 <pre class="methodSignature">public static&nbsp;java.lang.String&nbsp;toString&#8203;(java.io.Reader&nbsp;in)
                                  throws java.io.IOException</pre>
 <div class="block">Read input stream to string.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>in</code> - the reader to read from (until EOF)</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the String parsed from the reader</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code>java.io.IOException</code> - if unable to read the stream (or handle the charset)</dd>
 </dl>
 </li>
 </ul>
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 <!--   -->
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 <h4>delete</h4>
 <pre class="methodSignature">public static&nbsp;boolean&nbsp;delete&#8203;(java.io.File&nbsp;file)</pre>
 <div class="block">Delete File.
  This delete will recursively delete directories - BE CAREFUL</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>file</code> - The file (or directory) to be deleted.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>true if anything was deleted. (note: this does not mean that all content in a directory was deleted)</dd>
 </dl>
 </li>
 </ul>
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 <h4>close</h4>
 <pre class="methodSignature">public static&nbsp;void&nbsp;close&#8203;(java.io.Closeable&nbsp;closeable)</pre>
 <div class="block">Closes an arbitrary closable, and logs exceptions at ignore level</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>closeable</code> - the closeable to close</dd>
 </dl>
 </li>
 </ul>
 <a id="close(java.io.InputStream)">
 <!--   -->
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 <li class="blockList">
 <h4>close</h4>
 <pre class="methodSignature">public static&nbsp;void&nbsp;close&#8203;(java.io.InputStream&nbsp;is)</pre>
 <div class="block">closes an input stream, and logs exceptions</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>is</code> - the input stream to close</dd>
 </dl>
 </li>
 </ul>
 <a id="close(java.io.OutputStream)">
 <!--   -->
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 <h4>close</h4>
 <pre class="methodSignature">public static&nbsp;void&nbsp;close&#8203;(java.io.OutputStream&nbsp;os)</pre>
 <div class="block">closes an output stream, and logs exceptions</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>os</code> - the output stream to close</dd>
 </dl>
 </li>
 </ul>
 <a id="close(java.io.Reader)">
 <!--   -->
 </a>
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 <li class="blockList">
 <h4>close</h4>
 <pre class="methodSignature">public static&nbsp;void&nbsp;close&#8203;(java.io.Reader&nbsp;reader)</pre>
 <div class="block">closes a reader, and logs exceptions</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>reader</code> - the reader to close</dd>
 </dl>
 </li>
 </ul>
 <a id="close(java.io.Writer)">
 <!--   -->
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 <li class="blockList">
 <h4>close</h4>
 <pre class="methodSignature">public static&nbsp;void&nbsp;close&#8203;(java.io.Writer&nbsp;writer)</pre>
 <div class="block">closes a writer, and logs exceptions</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>writer</code> - the writer to close</dd>
 </dl>
 </li>
 </ul>
 <a id="readBytes(java.io.InputStream)">
 <!--   -->
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 <li class="blockList">
 <h4>readBytes</h4>
 <pre class="methodSignature">public static&nbsp;byte[]&nbsp;readBytes&#8203;(java.io.InputStream&nbsp;in)
                         throws java.io.IOException</pre>
 <dl>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code>java.io.IOException</code></dd>
 </dl>
 </li>
 </ul>
 <a id="write(java.nio.channels.GatheringByteChannel,java.nio.ByteBuffer[],int,int)">
 <!--   -->
 </a>
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 <li class="blockList">
 <h4>write</h4>
 <pre class="methodSignature">public static&nbsp;long&nbsp;write&#8203;(java.nio.channels.GatheringByteChannel&nbsp;out,
                          java.nio.ByteBuffer[]&nbsp;buffers,
                          int&nbsp;offset,
                          int&nbsp;length)
                   throws java.io.IOException</pre>
 <div class="block">A gathering write utility wrapper.
  <p>
  This method wraps a gather write with a loop that handles the limitations of some operating systems that have a
  limit on the number of buffers written. The method loops on the write until either all the content is written or
  no progress is made.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>out</code> - The GatheringByteChannel to write to</dd>
 <dd><code>buffers</code> - The buffers to write</dd>
 <dd><code>offset</code> - The offset into the buffers array</dd>
 <dd><code>length</code> - The length in buffers to write</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The total bytes written</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code>java.io.IOException</code> - if unable write to the GatheringByteChannel</dd>
 </dl>
 </li>
 </ul>
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 <!--   -->
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 <h4>getNullStream</h4>
 <pre class="methodSignature">public static&nbsp;java.io.OutputStream&nbsp;getNullStream()</pre>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>An outputstream to nowhere</dd>
 </dl>
 </li>
 </ul>
 <a id="getClosedStream()">
 <!--   -->
 </a>
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 <li class="blockList">
 <h4>getClosedStream</h4>
 <pre class="methodSignature">public static&nbsp;java.io.InputStream&nbsp;getClosedStream()</pre>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>An outputstream to nowhere</dd>
 </dl>
 </li>
 </ul>
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 <!--   -->
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 <h4>getNullWriter</h4>
 <pre class="methodSignature">public static&nbsp;java.io.Writer&nbsp;getNullWriter()</pre>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>An writer to nowhere</dd>
 </dl>
 </li>
 </ul>
 <a id="getNullPrintWriter()">
 <!--   -->
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 <h4>getNullPrintWriter</h4>
 <pre class="methodSignature">public static&nbsp;java.io.PrintWriter&nbsp;getNullPrintWriter()</pre>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>An writer to nowhere</dd>
 </dl>
 </li>
 </ul>
 </li>
 </ul>
 </section>
 </li>
 </ul>
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