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<li>Summary: </li>
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<div class="subTitle">org.codehaus.plexus.util.xml</div>
<h2 title="Class XmlReader" class="title">Class XmlReader</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li>java.io.Reader</li>
<li>
<ul class="inheritance">
<li>org.codehaus.plexus.util.xml.XmlReader</li>
</ul>
</li>
</ul>
</li>
</ul>
<div class="description">
<ul class="blockList">
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<dl>
<dt>All Implemented Interfaces:</dt>
<dd>java.io.Closeable, java.lang.AutoCloseable, java.lang.Readable</dd>
</dl>
<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../../org/codehaus/plexus/util/xml/XmlStreamReader.html" title="class in org.codehaus.plexus.util.xml">XmlStreamReader</a></dd>
</dl>
<hr>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>
<div class="block"><span class="deprecationComment">use XmlStreamReader</span></div>
</div>
<br>
<pre>public class <span class="typeNameLabel">XmlReader</span>
extends java.io.Reader</pre>
<div class="block">Character stream that handles (or at least attemtps to) all the necessary Voodo to figure out the charset encoding of
the XML document within the stream.
<p>
IMPORTANT: This class is not related in any way to the org.xml.sax.XMLReader. This one IS a character stream.
<p>
All this has to be done without consuming characters from the stream, if not the XML parser will not recognized the
document as a valid XML. This is not 100% true, but it's close enough (UTF-8 BOM is not handled by all parsers right
now, XmlReader handles it and things work in all parsers).
<p>
The XmlReader class handles the charset encoding of XML documents in Files, raw streams and HTTP streams by offering
a wide set of constructors.
<P>
By default the charset encoding detection is lenient, the constructor with the lenient flag can be used for an script
(following HTTP MIME and XML specifications). All this is nicely explained by Mark Pilgrim in his blog, <a
href="http://diveintomark.org/archives/2004/02/13/xml-media-types"> Determining the character encoding of a feed</a>.
<p></div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.4.3</dd>
<dt><span class="simpleTagLabel">Version:</span></dt>
<dd>revision 1.17 taken on 26/06/2007 from Rome (see https://rome.dev.java.net/source/browse/rome/src/java/com/sun/syndication/io/XmlReader.java)</dd>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>Alejandro Abdelnur</dd>
</dl>
</li>
</ul>
</div>
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<h3>Fields inherited from class java.io.Reader</h3>
<code>lock</code></li>
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<caption><span>Constructors</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/codehaus/plexus/util/xml/XmlReader.html#XmlReader-java.io.File-">XmlReader</a></span>(java.io.File file)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Creates a Reader for a File.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/codehaus/plexus/util/xml/XmlReader.html#XmlReader-java.io.InputStream-">XmlReader</a></span>(java.io.InputStream is)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Creates a Reader for a raw InputStream.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/codehaus/plexus/util/xml/XmlReader.html#XmlReader-java.io.InputStream-boolean-">XmlReader</a></span>(java.io.InputStream is,
boolean lenient)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Creates a Reader for a raw InputStream.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/codehaus/plexus/util/xml/XmlReader.html#XmlReader-java.io.InputStream-java.lang.String-">XmlReader</a></span>(java.io.InputStream is,
java.lang.String httpContentType)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Creates a Reader using an InputStream an the associated content-type header.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/codehaus/plexus/util/xml/XmlReader.html#XmlReader-java.io.InputStream-java.lang.String-boolean-">XmlReader</a></span>(java.io.InputStream is,
java.lang.String httpContentType,
boolean lenient)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Creates a Reader using an InputStream an the associated content-type header.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/codehaus/plexus/util/xml/XmlReader.html#XmlReader-java.io.InputStream-java.lang.String-boolean-java.lang.String-">XmlReader</a></span>(java.io.InputStream is,
java.lang.String httpContentType,
boolean lenient,
java.lang.String defaultEncoding)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Creates a Reader using an InputStream an the associated content-type header.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/codehaus/plexus/util/xml/XmlReader.html#XmlReader-java.net.URL-">XmlReader</a></span>(java.net.URL url)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Creates a Reader using the InputStream of a URL.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/codehaus/plexus/util/xml/XmlReader.html#XmlReader-java.net.URLConnection-">XmlReader</a></span>(java.net.URLConnection conn)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Creates a Reader using the InputStream of a URLConnection.</div>
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<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr id="i0" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/codehaus/plexus/util/xml/XmlReader.html#close--">close</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Closes the XmlReader stream.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>static java.lang.String</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/codehaus/plexus/util/xml/XmlReader.html#getDefaultEncoding--">getDefaultEncoding</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Returns the default encoding to use if none is set in HTTP content-type, XML prolog and the rules based on
content-type are not adequate.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/codehaus/plexus/util/xml/XmlReader.html#getEncoding--">getEncoding</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Returns the charset encoding of the XmlReader.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/codehaus/plexus/util/xml/XmlReader.html#read-char:A-int-int-">read</a></span>(char[] buf,
int offset,
int len)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/codehaus/plexus/util/xml/XmlReader.html#setDefaultEncoding-java.lang.String-">setDefaultEncoding</a></span>(java.lang.String encoding)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Sets the default encoding to use if none is set in HTTP content-type, XML prolog and the rules based on
content-type are not adequate.</div>
</td>
</tr>
</table>
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<h3>Methods inherited from class java.io.Reader</h3>
<code>mark, markSupported, read, read, read, ready, reset, skip</code></li>
</ul>
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<h3>Methods inherited from class java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
</ul>
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</li>
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<h4>XmlReader</h4>
<pre>public XmlReader(java.io.File file)
throws java.io.IOException</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Creates a Reader for a File.
<p>
It looks for the UTF-8 BOM first, if none sniffs the XML prolog charset, if this is also missing defaults to
UTF-8.
<p>
It does a lenient charset encoding detection, check the constructor with the lenient parameter for details.
<p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>file</code> - File to create a Reader from.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - thrown if there is a problem reading the file.</dd>
</dl>
</li>
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<pre>public XmlReader(java.io.InputStream is)
throws java.io.IOException</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Creates a Reader for a raw InputStream.
<p>
It follows the same logic used for files.
<p>
It does a lenient charset encoding detection, check the constructor with the lenient parameter for details.
<p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>is</code> - InputStream to create a Reader from.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - thrown if there is a problem reading the stream.</dd>
</dl>
</li>
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<pre>public XmlReader(java.io.InputStream is,
boolean lenient)
throws java.io.IOException,
<a href="../../../../../org/codehaus/plexus/util/xml/XmlStreamReaderException.html" title="class in org.codehaus.plexus.util.xml">XmlStreamReaderException</a></pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Creates a Reader for a raw InputStream.
<p>
It follows the same logic used for files.
<p>
If lenient detection is indicated and the detection above fails as per specifications it then attempts the
following:
<p>
If the content type was 'text/html' it replaces it with 'text/xml' and tries the detection again.
<p>
Else if the XML prolog had a charset encoding that encoding is used.
<p>
Else if the content type had a charset encoding that encoding is used.
<p>
Else 'UTF-8' is used.
<p>
If lenient detection is indicated an XmlStreamReaderException is never thrown.
<p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>is</code> - InputStream to create a Reader from.</dd>
<dd><code>lenient</code> - indicates if the charset encoding detection should be relaxed.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - thrown if there is a problem reading the stream.</dd>
<dd><code><a href="../../../../../org/codehaus/plexus/util/xml/XmlStreamReaderException.html" title="class in org.codehaus.plexus.util.xml">XmlStreamReaderException</a></code> - thrown if the charset encoding could not be determined according to the specs.</dd>
</dl>
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<pre>public XmlReader(java.net.URL url)
throws java.io.IOException</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Creates a Reader using the InputStream of a URL.
<p>
If the URL is not of type HTTP and there is not 'content-type' header in the fetched data it uses the same logic
used for Files.
<p>
If the URL is a HTTP Url or there is a 'content-type' header in the fetched data it uses the same logic used for
an InputStream with content-type.
<p>
It does a lenient charset encoding detection, check the constructor with the lenient parameter for details.
<p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>url</code> - URL to create a Reader from.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - thrown if there is a problem reading the stream of the URL.</dd>
</dl>
</li>
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<pre>public XmlReader(java.net.URLConnection conn)
throws java.io.IOException</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Creates a Reader using the InputStream of a URLConnection.
<p>
If the URLConnection is not of type HttpURLConnection and there is not 'content-type' header in the fetched data
it uses the same logic used for files.
<p>
If the URLConnection is a HTTP Url or there is a 'content-type' header in the fetched data it uses the same logic
used for an InputStream with content-type.
<p>
It does a lenient charset encoding detection, check the constructor with the lenient parameter for details.
<p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>conn</code> - URLConnection to create a Reader from.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - thrown if there is a problem reading the stream of the URLConnection.</dd>
</dl>
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<pre>public XmlReader(java.io.InputStream is,
java.lang.String httpContentType)
throws java.io.IOException</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Creates a Reader using an InputStream an the associated content-type header.
<p>
First it checks if the stream has BOM. If there is not BOM checks the content-type encoding. If there is not
content-type encoding checks the XML prolog encoding. If there is not XML prolog encoding uses the default
encoding mandated by the content-type MIME type.
<p>
It does a lenient charset encoding detection, check the constructor with the lenient parameter for details.
<p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>is</code> - InputStream to create the reader from.</dd>
<dd><code>httpContentType</code> - content-type header to use for the resolution of the charset encoding.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - thrown if there is a problem reading the file.</dd>
</dl>
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<pre>public XmlReader(java.io.InputStream is,
java.lang.String httpContentType,
boolean lenient,
java.lang.String defaultEncoding)
throws java.io.IOException,
<a href="../../../../../org/codehaus/plexus/util/xml/XmlStreamReaderException.html" title="class in org.codehaus.plexus.util.xml">XmlStreamReaderException</a></pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Creates a Reader using an InputStream an the associated content-type header. This constructor is lenient
regarding the encoding detection.
<p>
First it checks if the stream has BOM. If there is not BOM checks the content-type encoding. If there is not
content-type encoding checks the XML prolog encoding. If there is not XML prolog encoding uses the default
encoding mandated by the content-type MIME type.
<p>
If lenient detection is indicated and the detection above fails as per specifications it then attempts the
following:
<p>
If the content type was 'text/html' it replaces it with 'text/xml' and tries the detection again.
<p>
Else if the XML prolog had a charset encoding that encoding is used.
<p>
Else if the content type had a charset encoding that encoding is used.
<p>
Else 'UTF-8' is used.
<p>
If lenient detection is indicated an XmlStreamReaderException is never thrown.
<p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>is</code> - InputStream to create the reader from.</dd>
<dd><code>httpContentType</code> - content-type header to use for the resolution of the charset encoding.</dd>
<dd><code>lenient</code> - indicates if the charset encoding detection should be relaxed.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - thrown if there is a problem reading the file.</dd>
<dd><code><a href="../../../../../org/codehaus/plexus/util/xml/XmlStreamReaderException.html" title="class in org.codehaus.plexus.util.xml">XmlStreamReaderException</a></code> - thrown if the charset encoding could not be determined according to the specs.</dd>
</dl>
</li>
</ul>
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<h4>XmlReader</h4>
<pre>public XmlReader(java.io.InputStream is,
java.lang.String httpContentType,
boolean lenient)
throws java.io.IOException,
<a href="../../../../../org/codehaus/plexus/util/xml/XmlStreamReaderException.html" title="class in org.codehaus.plexus.util.xml">XmlStreamReaderException</a></pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Creates a Reader using an InputStream an the associated content-type header. This constructor is lenient
regarding the encoding detection.
<p>
First it checks if the stream has BOM. If there is not BOM checks the content-type encoding. If there is not
content-type encoding checks the XML prolog encoding. If there is not XML prolog encoding uses the default
encoding mandated by the content-type MIME type.
<p>
If lenient detection is indicated and the detection above fails as per specifications it then attempts the
following:
<p>
If the content type was 'text/html' it replaces it with 'text/xml' and tries the detection again.
<p>
Else if the XML prolog had a charset encoding that encoding is used.
<p>
Else if the content type had a charset encoding that encoding is used.
<p>
Else 'UTF-8' is used.
<p>
If lenient detection is indicated an XmlStreamReaderException is never thrown.
<p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>is</code> - InputStream to create the reader from.</dd>
<dd><code>httpContentType</code> - content-type header to use for the resolution of the charset encoding.</dd>
<dd><code>lenient</code> - indicates if the charset encoding detection should be relaxed.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - thrown if there is a problem reading the file.</dd>
<dd><code><a href="../../../../../org/codehaus/plexus/util/xml/XmlStreamReaderException.html" title="class in org.codehaus.plexus.util.xml">XmlStreamReaderException</a></code> - thrown if the charset encoding could not be determined according to the specs.</dd>
</dl>
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</ul>
</li>
</ul>
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<a name="setDefaultEncoding-java.lang.String-">
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</a>
<ul class="blockList">
<li class="blockList">
<h4>setDefaultEncoding</h4>
<pre>public static void setDefaultEncoding(java.lang.String encoding)</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Sets the default encoding to use if none is set in HTTP content-type, XML prolog and the rules based on
content-type are not adequate. <p/> If it is set to NULL the content-type based rules are used. <p/> By default
it is NULL. <p/></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>encoding</code> - charset encoding to default to.</dd>
</dl>
</li>
</ul>
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</a>
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<h4>getDefaultEncoding</h4>
<pre>public static java.lang.String getDefaultEncoding()</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Returns the default encoding to use if none is set in HTTP content-type, XML prolog and the rules based on
content-type are not adequate. <p/> If it is NULL the content-type based rules are used. <p/></div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the default encoding to use.</dd>
</dl>
</li>
</ul>
<a name="getEncoding--">
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</a>
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<h4>getEncoding</h4>
<pre>public java.lang.String getEncoding()</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Returns the charset encoding of the XmlReader.
<p></div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>charset encoding.</dd>
</dl>
</li>
</ul>
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</a>
<ul class="blockList">
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<h4>read</h4>
<pre>public int read(char[] buf,
int offset,
int len)
throws java.io.IOException</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>read</code> in class <code>java.io.Reader</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd>
</dl>
</li>
</ul>
<a name="close--">
<!-- -->
</a>
<ul class="blockListLast">
<li class="blockList">
<h4>close</h4>
<pre>public void close()
throws java.io.IOException</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span> </div>
<div class="block">Closes the XmlReader stream.
<p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>close</code> in interface <code>java.io.Closeable</code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>close</code> in interface <code>java.lang.AutoCloseable</code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>close</code> in class <code>java.io.Reader</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - thrown if there was a problem closing the stream.</dd>
</dl>
</li>
</ul>
</li>
</ul>
</li>
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