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<div class="subTitle">org.apache.commons.fileupload</div>
<h2 title="Class MultipartStream" class="title">Class MultipartStream</h2>
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<li>org.apache.commons.fileupload.MultipartStream</li>
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<pre>public class <span class="strong">MultipartStream</span>
extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
<div class="block"><p> Low level API for processing file uploads.
<p> This class can be used to process data streams conforming to MIME
'multipart' format as defined in
<a href="http://www.ietf.org/rfc/rfc1867.txt">RFC 1867</a>. Arbitrarily
large amounts of data in the stream can be processed under constant
memory usage.
<p> The format of the stream is defined in the following way:<br>
<code>
multipart-body := preamble 1*encapsulation close-delimiter epilogue<br>
encapsulation := delimiter body CRLF<br>
delimiter := "--" boundary CRLF<br>
close-delimiter := "--" boundary "--"<br>
preamble := <ignore><br>
epilogue := <ignore><br>
body := header-part CRLF body-part<br>
header-part := 1*header CRLF<br>
header := header-name ":" header-value<br>
header-name := <printable ascii characters except ":"><br>
header-value := <any ascii characters except CR & LF><br>
body-data := <arbitrary data><br>
</code>
<p>Note that body-data can contain another mulipart entity. There
is limited support for single pass processing of such nested
streams. The nested stream is <strong>required</strong> to have a
boundary token of the same length as the parent stream (see <a href="../../../../org/apache/commons/fileupload/MultipartStream.html#setBoundary(byte[])"><code>setBoundary(byte[])</code></a>).
<p>Here is an example of usage of this class.<br>
<pre>
try {
MultipartStream multipartStream = new MultipartStream(input, boundary);
boolean nextPart = multipartStream.skipPreamble();
OutputStream output;
while(nextPart) {
String header = multipartStream.readHeaders();
// process headers
// create some output stream
multipartStream.readBodyData(output);
nextPart = multipartStream.readBoundary();
}
} catch(MultipartStream.MalformedStreamException e) {
// the stream failed to follow required syntax
} catch(IOException e) {
// a read or write error occurred
}
</pre></div>
<dl><dt><span class="strong">Version:</span></dt>
<dd>$Id: MultipartStream.java 1565249 2014-02-06 13:45:33Z ggregory $</dd></dl>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static class </code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.IllegalBoundaryException.html" title="class in org.apache.commons.fileupload">MultipartStream.IllegalBoundaryException</a></strong></code>
<div class="block">Thrown upon attempt of setting an invalid boundary token.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>class </code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.ItemInputStream.html" title="class in org.apache.commons.fileupload">MultipartStream.ItemInputStream</a></strong></code>
<div class="block">An <a href="http://docs.oracle.com/javase/7/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io"><code>InputStream</code></a> for reading an items contents.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static class </code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.MalformedStreamException.html" title="class in org.apache.commons.fileupload">MultipartStream.MalformedStreamException</a></strong></code>
<div class="block">Thrown to indicate that the input stream fails to follow the
required syntax.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static class </code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.ProgressNotifier.html" title="class in org.apache.commons.fileupload">MultipartStream.ProgressNotifier</a></strong></code>
<div class="block">Internal class, which is used to invoke the
<a href="../../../../org/apache/commons/fileupload/ProgressListener.html" title="interface in org.apache.commons.fileupload"><code>ProgressListener</code></a>.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>protected static byte[]</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#BOUNDARY_PREFIX">BOUNDARY_PREFIX</a></strong></code>
<div class="block">A byte sequence that precedes a boundary (<code>CRLF--</code>).</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static byte</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#CR">CR</a></strong></code>
<div class="block">The Carriage Return ASCII character value.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static byte</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#DASH">DASH</a></strong></code>
<div class="block">The dash (-) ASCII character value.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#DEFAULT_BUFSIZE">DEFAULT_BUFSIZE</a></strong></code>
<div class="block">The default length of the buffer used for processing a request.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected static byte[]</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#FIELD_SEPARATOR">FIELD_SEPARATOR</a></strong></code>
<div class="block">A byte sequence that that follows a delimiter that will be
followed by an encapsulation (<code>CRLF</code>).</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#HEADER_PART_SIZE_MAX">HEADER_PART_SIZE_MAX</a></strong></code>
<div class="block">The maximum length of <code>header-part</code> that will be
processed (10 kilobytes = 10240 bytes.).</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected static byte[]</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#HEADER_SEPARATOR">HEADER_SEPARATOR</a></strong></code>
<div class="block">A byte sequence that marks the end of <code>header-part</code>
(<code>CRLFCRLF</code>).</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static byte</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#LF">LF</a></strong></code>
<div class="block">The Line Feed ASCII character value.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected static byte[]</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#STREAM_TERMINATOR">STREAM_TERMINATOR</a></strong></code>
<div class="block">A byte sequence that that follows a delimiter of the last
encapsulation in the stream (<code>--</code>).</div>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#MultipartStream()">MultipartStream</a></strong>()</code>
<div class="block"><strong>Deprecated.</strong>
<div class="block"><i>1.2.1 Use <a href="../../../../org/apache/commons/fileupload/MultipartStream.html#MultipartStream(java.io.InputStream,%20byte[],%20int,%20org.apache.commons.fileupload.MultipartStream.ProgressNotifier)"><code>MultipartStream(InputStream, byte[], int,
ProgressNotifier)</code></a></i></div>
</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#MultipartStream(java.io.InputStream,%20byte[])">MultipartStream</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</a> input,
byte[] boundary)</code>
<div class="block"><strong>Deprecated.</strong>
<div class="block"><i>1.2.1 Use <a href="../../../../org/apache/commons/fileupload/MultipartStream.html#MultipartStream(java.io.InputStream,%20byte[],%20int,%20org.apache.commons.fileupload.MultipartStream.ProgressNotifier)"><code>MultipartStream(InputStream, byte[], int,
ProgressNotifier)</code></a>.</i></div>
</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#MultipartStream(java.io.InputStream,%20byte[],%20int)">MultipartStream</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</a> input,
byte[] boundary,
int bufSize)</code>
<div class="block"><strong>Deprecated.</strong>
<div class="block"><i>1.2.1 Use <a href="../../../../org/apache/commons/fileupload/MultipartStream.html#MultipartStream(java.io.InputStream,%20byte[],%20int,%20org.apache.commons.fileupload.MultipartStream.ProgressNotifier)"><code>MultipartStream(InputStream, byte[], int,
ProgressNotifier)</code></a>.</i></div>
</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#MultipartStream(java.io.InputStream,%20byte[],%20int,%20org.apache.commons.fileupload.MultipartStream.ProgressNotifier)">MultipartStream</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</a> input,
byte[] boundary,
int bufSize,
<a href="../../../../org/apache/commons/fileupload/MultipartStream.ProgressNotifier.html" title="class in org.apache.commons.fileupload">MultipartStream.ProgressNotifier</a> pNotifier)</code>
<div class="block"> Constructs a <code>MultipartStream</code> with a custom size buffer.</div>
</td>
</tr>
</table>
</li>
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<h3>Method Summary</h3>
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<caption><span>Methods</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#arrayequals(byte[],%20byte[],%20int)">arrayequals</a></strong>(byte[] a,
byte[] b,
int count)</code>
<div class="block">Compares <code>count</code> first bytes in the arrays
<code>a</code> and <code>b</code>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#discardBodyData()">discardBodyData</a></strong>()</code>
<div class="block"> Reads <code>body-data</code> from the current
<code>encapsulation</code> and discards it.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#findByte(byte,%20int)">findByte</a></strong>(byte value,
int pos)</code>
<div class="block">Searches for a byte of specified value in the <code>buffer</code>,
starting at the specified <code>position</code>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#findSeparator()">findSeparator</a></strong>()</code>
<div class="block">Searches for the <code>boundary</code> in the <code>buffer</code>
region delimited by <code>head</code> and <code>tail</code>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#getHeaderEncoding()">getHeaderEncoding</a></strong>()</code>
<div class="block">Retrieves the character encoding used when reading the headers of an
individual part.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#readBodyData(java.io.OutputStream)">readBodyData</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</a> output)</code>
<div class="block">Reads <code>body-data</code> from the current
<code>encapsulation</code> and writes its contents into the
output <code>Stream</code>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#readBoundary()">readBoundary</a></strong>()</code>
<div class="block">Skips a <code>boundary</code> token, and checks whether more
<code>encapsulations</code> are contained in the stream.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>byte</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#readByte()">readByte</a></strong>()</code>
<div class="block">Reads a byte from the <code>buffer</code>, and refills it as
necessary.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#readHeaders()">readHeaders</a></strong>()</code>
<div class="block">Reads the <code>header-part</code> of the current
<code>encapsulation</code>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#setBoundary(byte[])">setBoundary</a></strong>(byte[] boundary)</code>
<div class="block">Changes the boundary token used for partitioning the stream.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#setHeaderEncoding(java.lang.String)">setHeaderEncoding</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> encoding)</code>
<div class="block">Specifies the character encoding to be used when reading the headers of
individual parts.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/commons/fileupload/MultipartStream.html#skipPreamble()">skipPreamble</a></strong>()</code>
<div class="block">Finds the beginning of the first <code>encapsulation</code>.</div>
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<h3>Methods inherited from class java.lang.<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" title="class or interface in java.lang">wait</a></code></li>
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<h3>Field Detail</h3>
<a name="CR">
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<h4>CR</h4>
<pre>public static final byte CR</pre>
<div class="block">The Carriage Return ASCII character value.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.commons.fileupload.MultipartStream.CR">Constant Field Values</a></dd></dl>
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<h4>LF</h4>
<pre>public static final byte LF</pre>
<div class="block">The Line Feed ASCII character value.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.commons.fileupload.MultipartStream.LF">Constant Field Values</a></dd></dl>
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<pre>public static final byte DASH</pre>
<div class="block">The dash (-) ASCII character value.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.commons.fileupload.MultipartStream.DASH">Constant Field Values</a></dd></dl>
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<pre>public static final int HEADER_PART_SIZE_MAX</pre>
<div class="block">The maximum length of <code>header-part</code> that will be
processed (10 kilobytes = 10240 bytes.).</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.commons.fileupload.MultipartStream.HEADER_PART_SIZE_MAX">Constant Field Values</a></dd></dl>
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<pre>protected static final int DEFAULT_BUFSIZE</pre>
<div class="block">The default length of the buffer used for processing a request.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.commons.fileupload.MultipartStream.DEFAULT_BUFSIZE">Constant Field Values</a></dd></dl>
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<pre>protected static final byte[] HEADER_SEPARATOR</pre>
<div class="block">A byte sequence that marks the end of <code>header-part</code>
(<code>CRLFCRLF</code>).</div>
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<pre>protected static final byte[] FIELD_SEPARATOR</pre>
<div class="block">A byte sequence that that follows a delimiter that will be
followed by an encapsulation (<code>CRLF</code>).</div>
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<h4>STREAM_TERMINATOR</h4>
<pre>protected static final byte[] STREAM_TERMINATOR</pre>
<div class="block">A byte sequence that that follows a delimiter of the last
encapsulation in the stream (<code>--</code>).</div>
</li>
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<a name="BOUNDARY_PREFIX">
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<pre>protected static final byte[] BOUNDARY_PREFIX</pre>
<div class="block">A byte sequence that precedes a boundary (<code>CRLF--</code>).</div>
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<h3>Constructor Detail</h3>
<a name="MultipartStream()">
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<pre><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a>
public MultipartStream()</pre>
<div class="block"><span class="strong">Deprecated.</span> <i>1.2.1 Use <a href="../../../../org/apache/commons/fileupload/MultipartStream.html#MultipartStream(java.io.InputStream,%20byte[],%20int,%20org.apache.commons.fileupload.MultipartStream.ProgressNotifier)"><code>MultipartStream(InputStream, byte[], int,
ProgressNotifier)</code></a></i></div>
<div class="block">Creates a new instance.</div>
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<a name="MultipartStream(java.io.InputStream, byte[], int)">
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<pre><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a>
public MultipartStream(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</a> input,
byte[] boundary,
int bufSize)</pre>
<div class="block"><span class="strong">Deprecated.</span> <i>1.2.1 Use <a href="../../../../org/apache/commons/fileupload/MultipartStream.html#MultipartStream(java.io.InputStream,%20byte[],%20int,%20org.apache.commons.fileupload.MultipartStream.ProgressNotifier)"><code>MultipartStream(InputStream, byte[], int,
ProgressNotifier)</code></a>.</i></div>
<div class="block"><p> Constructs a <code>MultipartStream</code> with a custom size buffer
and no progress notifier.
<p> Note that the buffer must be at least big enough to contain the
boundary string, plus 4 characters for CR/LF and double dash, plus at
least one byte of data. Too small a buffer size setting will degrade
performance.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>input</code> - The <code>InputStream</code> to serve as a data source.</dd><dd><code>boundary</code> - The token used for dividing the stream into
<code>encapsulations</code>.</dd><dd><code>bufSize</code> - The size of the buffer to be used, in bytes.</dd></dl>
</li>
</ul>
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<pre>public MultipartStream(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</a> input,
byte[] boundary,
int bufSize,
<a href="../../../../org/apache/commons/fileupload/MultipartStream.ProgressNotifier.html" title="class in org.apache.commons.fileupload">MultipartStream.ProgressNotifier</a> pNotifier)</pre>
<div class="block"><p> Constructs a <code>MultipartStream</code> with a custom size buffer.
<p> Note that the buffer must be at least big enough to contain the
boundary string, plus 4 characters for CR/LF and double dash, plus at
least one byte of data. Too small a buffer size setting will degrade
performance.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>input</code> - The <code>InputStream</code> to serve as a data source.</dd><dd><code>boundary</code> - The token used for dividing the stream into
<code>encapsulations</code>.</dd><dd><code>bufSize</code> - The size of the buffer to be used, in bytes.</dd><dd><code>pNotifier</code> - The notifier, which is used for calling the
progress listener, if any.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - If the buffer size is too small</dd><dt><span class="strong">Since:</span></dt>
<dd>1.3.1</dd></dl>
</li>
</ul>
<a name="MultipartStream(java.io.InputStream, byte[])">
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<h4>MultipartStream</h4>
<pre><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a>
public MultipartStream(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</a> input,
byte[] boundary)</pre>
<div class="block"><span class="strong">Deprecated.</span> <i>1.2.1 Use <a href="../../../../org/apache/commons/fileupload/MultipartStream.html#MultipartStream(java.io.InputStream,%20byte[],%20int,%20org.apache.commons.fileupload.MultipartStream.ProgressNotifier)"><code>MultipartStream(InputStream, byte[], int,
ProgressNotifier)</code></a>.</i></div>
<div class="block"><p> Constructs a <code>MultipartStream</code> with a default size buffer.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>input</code> - The <code>InputStream</code> to serve as a data source.</dd><dd><code>boundary</code> - The token used for dividing the stream into
<code>encapsulations</code>.</dd></dl>
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<h3>Method Detail</h3>
<a name="getHeaderEncoding()">
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<h4>getHeaderEncoding</h4>
<pre>public <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> getHeaderEncoding()</pre>
<div class="block">Retrieves the character encoding used when reading the headers of an
individual part. When not specified, or <code>null</code>, the platform
default encoding is used.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The encoding used to read part headers.</dd></dl>
</li>
</ul>
<a name="setHeaderEncoding(java.lang.String)">
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<h4>setHeaderEncoding</h4>
<pre>public void setHeaderEncoding(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> encoding)</pre>
<div class="block">Specifies the character encoding to be used when reading the headers of
individual parts. When not specified, or <code>null</code>, the platform
default encoding is used.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>encoding</code> - The encoding used to read part headers.</dd></dl>
</li>
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<a name="readByte()">
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<h4>readByte</h4>
<pre>public byte readByte()
throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">Reads a byte from the <code>buffer</code>, and refills it as
necessary.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The next byte from the input stream.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if there is no more data available.</dd></dl>
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<a name="readBoundary()">
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<h4>readBoundary</h4>
<pre>public boolean readBoundary()
throws <a href="../../../../org/apache/commons/fileupload/FileUploadBase.FileUploadIOException.html" title="class in org.apache.commons.fileupload">FileUploadBase.FileUploadIOException</a>,
<a href="../../../../org/apache/commons/fileupload/MultipartStream.MalformedStreamException.html" title="class in org.apache.commons.fileupload">MultipartStream.MalformedStreamException</a></pre>
<div class="block">Skips a <code>boundary</code> token, and checks whether more
<code>encapsulations</code> are contained in the stream.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd><code>true</code> if there are more encapsulations in
this stream; <code>false</code> otherwise.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/commons/fileupload/FileUploadBase.FileUploadIOException.html" title="class in org.apache.commons.fileupload">FileUploadBase.FileUploadIOException</a></code> - if the bytes read from the stream exceeded the size limits</dd>
<dd><code><a href="../../../../org/apache/commons/fileupload/MultipartStream.MalformedStreamException.html" title="class in org.apache.commons.fileupload">MultipartStream.MalformedStreamException</a></code> - if the stream ends unexpectedly or
fails to follow required syntax.</dd></dl>
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<a name="setBoundary(byte[])">
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<h4>setBoundary</h4>
<pre>public void setBoundary(byte[] boundary)
throws <a href="../../../../org/apache/commons/fileupload/MultipartStream.IllegalBoundaryException.html" title="class in org.apache.commons.fileupload">MultipartStream.IllegalBoundaryException</a></pre>
<div class="block"><p>Changes the boundary token used for partitioning the stream.
<p>This method allows single pass processing of nested multipart
streams.
<p>The boundary token of the nested stream is <code>required</code>
to be of the same length as the boundary token in parent stream.
<p>Restoring the parent stream boundary token after processing of a
nested stream is left to the application.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>boundary</code> - The boundary to be used for parsing of the nested
stream.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/commons/fileupload/MultipartStream.IllegalBoundaryException.html" title="class in org.apache.commons.fileupload">MultipartStream.IllegalBoundaryException</a></code> - if the <code>boundary</code>
has a different length than the one
being currently parsed.</dd></dl>
</li>
</ul>
<a name="readHeaders()">
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<h4>readHeaders</h4>
<pre>public <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> readHeaders()
throws <a href="../../../../org/apache/commons/fileupload/FileUploadBase.FileUploadIOException.html" title="class in org.apache.commons.fileupload">FileUploadBase.FileUploadIOException</a>,
<a href="../../../../org/apache/commons/fileupload/MultipartStream.MalformedStreamException.html" title="class in org.apache.commons.fileupload">MultipartStream.MalformedStreamException</a></pre>
<div class="block"><p>Reads the <code>header-part</code> of the current
<code>encapsulation</code>.
<p>Headers are returned verbatim to the input stream, including the
trailing <code>CRLF</code> marker. Parsing is left to the
application.
<p><strong>TODO</strong> allow limiting maximum header size to
protect against abuse.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The <code>header-part</code> of the current encapsulation.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/commons/fileupload/FileUploadBase.FileUploadIOException.html" title="class in org.apache.commons.fileupload">FileUploadBase.FileUploadIOException</a></code> - if the bytes read from the stream exceeded the size limits.</dd>
<dd><code><a href="../../../../org/apache/commons/fileupload/MultipartStream.MalformedStreamException.html" title="class in org.apache.commons.fileupload">MultipartStream.MalformedStreamException</a></code> - if the stream ends unexpectedly.</dd></dl>
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<h4>readBodyData</h4>
<pre>public int readBodyData(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</a> output)
throws <a href="../../../../org/apache/commons/fileupload/MultipartStream.MalformedStreamException.html" title="class in org.apache.commons.fileupload">MultipartStream.MalformedStreamException</a>,
<a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block"><p>Reads <code>body-data</code> from the current
<code>encapsulation</code> and writes its contents into the
output <code>Stream</code>.
<p>Arbitrary large amounts of data can be processed by this
method using a constant size buffer. (see <a href="../../../../org/apache/commons/fileupload/MultipartStream.html#MultipartStream(java.io.InputStream,%20byte[],%20int,%20org.apache.commons.fileupload.MultipartStream.ProgressNotifier)"><code>constructor</code></a>).</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>output</code> - The <code>Stream</code> to write data into. May
be null, in which case this method is equivalent
to <a href="../../../../org/apache/commons/fileupload/MultipartStream.html#discardBodyData()"><code>discardBodyData()</code></a>.</dd>
<dt><span class="strong">Returns:</span></dt><dd>the amount of data written.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/commons/fileupload/MultipartStream.MalformedStreamException.html" title="class in org.apache.commons.fileupload">MultipartStream.MalformedStreamException</a></code> - if the stream ends unexpectedly.</dd>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if an i/o error occurs.</dd></dl>
</li>
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<a name="discardBodyData()">
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<h4>discardBodyData</h4>
<pre>public int discardBodyData()
throws <a href="../../../../org/apache/commons/fileupload/MultipartStream.MalformedStreamException.html" title="class in org.apache.commons.fileupload">MultipartStream.MalformedStreamException</a>,
<a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block"><p> Reads <code>body-data</code> from the current
<code>encapsulation</code> and discards it.
<p>Use this method to skip encapsulations you don't need or don't
understand.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The amount of data discarded.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/commons/fileupload/MultipartStream.MalformedStreamException.html" title="class in org.apache.commons.fileupload">MultipartStream.MalformedStreamException</a></code> - if the stream ends unexpectedly.</dd>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if an i/o error occurs.</dd></dl>
</li>
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<a name="skipPreamble()">
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<h4>skipPreamble</h4>
<pre>public boolean skipPreamble()
throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">Finds the beginning of the first <code>encapsulation</code>.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd><code>true</code> if an <code>encapsulation</code> was found in
the stream.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if an i/o error occurs.</dd></dl>
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<a name="arrayequals(byte[], byte[], int)">
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<h4>arrayequals</h4>
<pre>public static boolean arrayequals(byte[] a,
byte[] b,
int count)</pre>
<div class="block">Compares <code>count</code> first bytes in the arrays
<code>a</code> and <code>b</code>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>a</code> - The first array to compare.</dd><dd><code>b</code> - The second array to compare.</dd><dd><code>count</code> - How many bytes should be compared.</dd>
<dt><span class="strong">Returns:</span></dt><dd><code>true</code> if <code>count</code> first bytes in arrays
<code>a</code> and <code>b</code> are equal.</dd></dl>
</li>
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<a name="findByte(byte, int)">
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<h4>findByte</h4>
<pre>protected int findByte(byte value,
int pos)</pre>
<div class="block">Searches for a byte of specified value in the <code>buffer</code>,
starting at the specified <code>position</code>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - The value to find.</dd><dd><code>pos</code> - The starting position for searching.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The position of byte found, counting from beginning of the
<code>buffer</code>, or <code>-1</code> if not found.</dd></dl>
</li>
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<a name="findSeparator()">
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<h4>findSeparator</h4>
<pre>protected int findSeparator()</pre>
<div class="block">Searches for the <code>boundary</code> in the <code>buffer</code>
region delimited by <code>head</code> and <code>tail</code>.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The position of the boundary found, counting from the
beginning of the <code>buffer</code>, or <code>-1</code> if
not found.</dd></dl>
</li>
</ul>
</li>
</ul>
</li>
</ul>
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