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<div class="sub-title"><span class="module-label-in-type">Module</span>&nbsp;<a href="../../../../../module-summary.html">org.apache.jena.fuseki.core</a></div>
<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.jena.fuseki.system</a></div>
<h1 title="Class ConNeg" class="title">Class ConNeg</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a>
<div class="inheritance">org.apache.jena.fuseki.system.ConNeg</div>
</div>
<section class="class-description" id="class-description">
<hr>
<div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">ConNeg</span>
<span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></span></div>
<div class="block"><p>
Content negotiation is a mechanism defined in the HTTP specification that makes it
possible to serve different versions of a document (or more generally, a resource
representation) at the same URI, so that user agents can specify which version fit
their capabilities the best.
</p>
<p>
ConNeg is used in Fuseki to help matching the content media type requested by the
user, against the list of offered media types.
</p></div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list-long">
<li><a href="http://en.wikipedia.org/wiki/Content_negotiation">http://en.wikipedia.org/wiki/Content_negotiation</a></li>
<li><a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.1">http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.1</a></li>
</ul>
</dd>
</dl>
</section>
<section class="summary">
<ul class="summary-list">
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<li>
<section class="constructor-summary" id="constructor-summary">
<h2>Constructor Summary</h2>
<div class="caption"><span>Constructors</span></div>
<div class="summary-table two-column-summary">
<div class="table-header col-first">Constructor</div>
<div class="table-header col-last">Description</div>
<div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E()" class="member-name-link">ConNeg</a>()</code></div>
<div class="col-last even-row-color">&nbsp;</div>
</div>
</section>
</li>
<!-- ========== METHOD SUMMARY =========== -->
<li>
<section class="method-summary" id="method-summary">
<h2>Method Summary</h2>
<div id="method-summary-table">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab1" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab1', 3)" class="table-tab">Static Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
<div id="method-summary-table.tabpanel" role="tabpanel">
<div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static org.apache.jena.atlas.web.MediaType</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#chooseCharset(jakarta.servlet.http.HttpServletRequest,org.apache.jena.atlas.web.AcceptList,org.apache.jena.atlas.web.MediaType)" class="member-name-link">chooseCharset</a><wbr>(jakarta.servlet.http.HttpServletRequest&nbsp;httpRequest,
org.apache.jena.atlas.web.AcceptList&nbsp;myPrefs,
org.apache.jena.atlas.web.MediaType&nbsp;defaultMediaType)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">
Chooses the charset by using the Accept-Charset HTTP header.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static org.apache.jena.atlas.web.MediaType</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#chooseContentType(jakarta.servlet.http.HttpServletRequest,org.apache.jena.atlas.web.AcceptList,org.apache.jena.atlas.web.MediaType)" class="member-name-link">chooseContentType</a><wbr>(jakarta.servlet.http.HttpServletRequest&nbsp;httpRequest,
org.apache.jena.atlas.web.AcceptList&nbsp;myPrefs,
org.apache.jena.atlas.web.MediaType&nbsp;defaultMediaType)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">
Choose the content media type by extracting the Accept HTTP header from the
HTTP request and choosing (see
<code>choose(String, AcceptList, MediaType)</code>) a content media type
that matches the header.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#match(java.lang.String,java.lang.String)" class="member-name-link">match</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;headerString,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;mediaRangeStr)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Match a single media type against a header string.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static org.apache.jena.atlas.web.MediaType</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#match(java.lang.String,org.apache.jena.atlas.web.AcceptList)" class="member-name-link">match</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;headerString,
org.apache.jena.atlas.web.AcceptList&nbsp;offerList)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">
Creates a <code>AcceptList</code> with the given HTTP header string and uses the
<code>AcceptList.match(MediaType)</code> method to decide which media type matches
the HTTP header string.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static org.apache.jena.atlas.web.MediaType</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#parse(java.lang.String)" class="member-name-link">parse</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;contentType)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Parses the content type.</div>
</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<li>
<section class="constructor-details" id="constructor-detail">
<h2>Constructor Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="&lt;init&gt;()">
<h3>ConNeg</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">ConNeg</span>()</div>
</section>
</li>
</ul>
</section>
</li>
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method-detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="parse(java.lang.String)">
<h3>parse</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">org.apache.jena.atlas.web.MediaType</span>&nbsp;<span class="element-name">parse</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;contentType)</span></div>
<div class="block">Parses the content type. It splits the string by semi-colon and finds the
other features such as the "q" quality factor. For a complete documentation on
how the parsing happens, see <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.1">http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.1</a>.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>contentType</code> - content type string</dd>
<dt>Returns:</dt>
<dd>parsed media type</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="match(java.lang.String,org.apache.jena.atlas.web.AcceptList)">
<h3>match</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">org.apache.jena.atlas.web.MediaType</span>&nbsp;<span class="element-name">match</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;headerString,
org.apache.jena.atlas.web.AcceptList&nbsp;offerList)</span></div>
<div class="block"><p>
Creates a <code>AcceptList</code> with the given HTTP header string and uses the
<code>AcceptList.match(MediaType)</code> method to decide which media type matches
the HTTP header string.
</p>
<p>
The <em>q</em> quality factor is used to decide which choice is the best
match.
</p></div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>headerString</code> - HTTP header string</dd>
<dd><code>offerList</code> - accept list</dd>
<dt>Returns:</dt>
<dd>matched media type</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="match(java.lang.String,java.lang.String)">
<h3>match</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span>&nbsp;<span class="element-name">match</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;headerString,
<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;mediaRangeStr)</span></div>
<div class="block">Match a single media type against a header string.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>headerString</code> - HTTP header string</dd>
<dd><code>mediaRangeStr</code> - Semi-colon separated list of media types</dd>
<dt>Returns:</dt>
<dd>the matched media type or <code>null</code> if there was no match</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="chooseCharset(jakarta.servlet.http.HttpServletRequest,org.apache.jena.atlas.web.AcceptList,org.apache.jena.atlas.web.MediaType)">
<h3>chooseCharset</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">org.apache.jena.atlas.web.MediaType</span>&nbsp;<span class="element-name">chooseCharset</span><wbr><span class="parameters">(jakarta.servlet.http.HttpServletRequest&nbsp;httpRequest,
org.apache.jena.atlas.web.AcceptList&nbsp;myPrefs,
org.apache.jena.atlas.web.MediaType&nbsp;defaultMediaType)</span></div>
<div class="block"><p>
Chooses the charset by using the Accept-Charset HTTP header.
</p>
<p>
See <code>choose(String, AcceptList, MediaType)</code>.
</p></div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>httpRequest</code> - HTTP request</dd>
<dd><code>myPrefs</code> - accept list</dd>
<dd><code>defaultMediaType</code> - default media type</dd>
<dt>Returns:</dt>
<dd>media type chosen</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="chooseContentType(jakarta.servlet.http.HttpServletRequest,org.apache.jena.atlas.web.AcceptList,org.apache.jena.atlas.web.MediaType)">
<h3>chooseContentType</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">org.apache.jena.atlas.web.MediaType</span>&nbsp;<span class="element-name">chooseContentType</span><wbr><span class="parameters">(jakarta.servlet.http.HttpServletRequest&nbsp;httpRequest,
org.apache.jena.atlas.web.AcceptList&nbsp;myPrefs,
org.apache.jena.atlas.web.MediaType&nbsp;defaultMediaType)</span></div>
<div class="block"><p>
Choose the content media type by extracting the Accept HTTP header from the
HTTP request and choosing (see
<code>choose(String, AcceptList, MediaType)</code>) a content media type
that matches the header.
</p></div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>httpRequest</code> - HTTP request</dd>
<dd><code>myPrefs</code> - accept list</dd>
<dd><code>defaultMediaType</code> - default media type</dd>
<dt>Returns:</dt>
<dd>media type chosen</dd>
</dl>
</section>
</li>
</ul>
</section>
</li>
</ul>
</section>
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