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<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.eclipse.jetty.proxy</a></div>
<h1 title="Class BalancerServlet" class="title">Class BalancerServlet</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/11/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">javax.servlet.GenericServlet
<div class="inheritance">javax.servlet.http.HttpServlet
<div class="inheritance"><a href="AbstractProxyServlet.html" title="class in org.eclipse.jetty.proxy">org.eclipse.jetty.proxy.AbstractProxyServlet</a>
<div class="inheritance"><a href="ProxyServlet.html" title="class in org.eclipse.jetty.proxy">org.eclipse.jetty.proxy.ProxyServlet</a>
<div class="inheritance">org.eclipse.jetty.proxy.BalancerServlet</div>
</div>
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</div>
</div>
</div>
<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Implemented Interfaces:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/Serializable.html" title="class or interface in java.io" class="external-link">Serializable</a></code>, <code>javax.servlet.Servlet</code>, <code>javax.servlet.ServletConfig</code></dd>
</dl>
<hr>
<div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">BalancerServlet</span>
<span class="extends-implements">extends <a href="ProxyServlet.html" title="class in org.eclipse.jetty.proxy">ProxyServlet</a></span></div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list">
<li><a href="../../../../serialized-form.html#org.eclipse.jetty.proxy.BalancerServlet">Serialized Form</a></li>
</ul>
</dd>
</dl>
</section>
<section class="summary">
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<!-- ======== NESTED CLASS SUMMARY ======== -->
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<section class="nested-class-summary" id="nested-class-summary">
<h2>Nested Class Summary</h2>
<div class="inherited-list">
<h2 id="nested-classes-inherited-from-class-org.eclipse.jetty.proxy.ProxyServlet">Nested classes/interfaces inherited from class&nbsp;org.eclipse.jetty.proxy.<a href="ProxyServlet.html" title="class in org.eclipse.jetty.proxy">ProxyServlet</a></h2>
<code><a href="ProxyServlet.ProxyInputStreamRequestContent.html" title="class in org.eclipse.jetty.proxy">ProxyServlet.ProxyInputStreamRequestContent</a>, <a href="ProxyServlet.ProxyResponseListener.html" title="class in org.eclipse.jetty.proxy">ProxyServlet.ProxyResponseListener</a>, <a href="ProxyServlet.Transparent.html" title="class in org.eclipse.jetty.proxy">ProxyServlet.Transparent</a></code></div>
<div class="inherited-list">
<h2 id="nested-classes-inherited-from-class-org.eclipse.jetty.proxy.AbstractProxyServlet">Nested classes/interfaces inherited from class&nbsp;org.eclipse.jetty.proxy.<a href="AbstractProxyServlet.html" title="class in org.eclipse.jetty.proxy">AbstractProxyServlet</a></h2>
<code><a href="AbstractProxyServlet.TransparentDelegate.html" title="class in org.eclipse.jetty.proxy">AbstractProxyServlet.TransparentDelegate</a></code></div>
</section>
</li>
<!-- =========== FIELD SUMMARY =========== -->
<li>
<section class="field-summary" id="field-summary">
<h2>Field Summary</h2>
<div class="inherited-list">
<h3 id="fields-inherited-from-class-org.eclipse.jetty.proxy.AbstractProxyServlet">Fields inherited from class&nbsp;org.eclipse.jetty.proxy.<a href="AbstractProxyServlet.html" title="class in org.eclipse.jetty.proxy">AbstractProxyServlet</a></h3>
<code><a href="AbstractProxyServlet.html#_log">_log</a>, <a href="AbstractProxyServlet.html#CLIENT_REQUEST_ATTRIBUTE">CLIENT_REQUEST_ATTRIBUTE</a>, <a href="AbstractProxyServlet.html#HOP_HEADERS">HOP_HEADERS</a></code></div>
</section>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<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">BalancerServlet</a>()</code></div>
<div class="col-last even-row-color">&nbsp;</div>
</div>
</section>
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<!-- ========== METHOD SUMMARY =========== -->
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<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-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance 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>
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<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-tab2 method-summary-table-tab4"><code>protected <a href="https://docs.oracle.com/en/java/javase/11/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-tab2 method-summary-table-tab4"><code><a href="#filterServerResponseHeader(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Response,java.lang.String,java.lang.String)" class="member-name-link">filterServerResponseHeader</a><wbr>(javax.servlet.http.HttpServletRequest&nbsp;request,
<a href="../client/api/Response.html" title="interface in org.eclipse.jetty.client.api">Response</a>&nbsp;serverResponse,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;headerName,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;headerValue)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">&nbsp;</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#init()" class="member-name-link">init</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">&nbsp;</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected <a href="https://docs.oracle.com/en/java/javase/11/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-tab2 method-summary-table-tab4"><code><a href="#rewriteTarget(javax.servlet.http.HttpServletRequest)" class="member-name-link">rewriteTarget</a><wbr>(javax.servlet.http.HttpServletRequest&nbsp;request)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">&nbsp;</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>boolean</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#validateDestination(java.lang.String,int)" class="member-name-link">validateDestination</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;host,
int&nbsp;port)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Checks the given <code>host</code> and <code>port</code> against whitelist and blacklist.</div>
</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.eclipse.jetty.proxy.ProxyServlet">Methods inherited from class&nbsp;org.eclipse.jetty.proxy.<a href="ProxyServlet.html" title="class in org.eclipse.jetty.proxy">ProxyServlet</a></h3>
<code><a href="ProxyServlet.html#newProxyResponseListener(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)">newProxyResponseListener</a>, <a href="ProxyServlet.html#onContinue(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Request)">onContinue</a>, <a href="ProxyServlet.html#onResponseContent(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,org.eclipse.jetty.client.api.Response,byte%5B%5D,int,int,org.eclipse.jetty.util.Callback)">onResponseContent</a>, <a href="ProxyServlet.html#proxyRequestContent(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,org.eclipse.jetty.client.api.Request)">proxyRequestContent</a>, <a href="ProxyServlet.html#service(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)">service</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.eclipse.jetty.proxy.AbstractProxyServlet">Methods inherited from class&nbsp;org.eclipse.jetty.proxy.<a href="AbstractProxyServlet.html" title="class in org.eclipse.jetty.proxy">AbstractProxyServlet</a></h3>
<code><a href="AbstractProxyServlet.html#addProxyHeaders(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Request)">addProxyHeaders</a>, <a href="AbstractProxyServlet.html#addViaHeader(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Request)">addViaHeader</a>, <a href="AbstractProxyServlet.html#addViaHeader(org.eclipse.jetty.client.api.Request)">addViaHeader</a>, <a href="AbstractProxyServlet.html#addXForwardedHeaders(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Request)">addXForwardedHeaders</a>, <a href="AbstractProxyServlet.html#clientRequestStatus(java.lang.Throwable)">clientRequestStatus</a>, <a href="AbstractProxyServlet.html#copyRequestHeaders(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Request)">copyRequestHeaders</a>, <a href="AbstractProxyServlet.html#createHttpClient()">createHttpClient</a>, <a href="AbstractProxyServlet.html#createLogger()">createLogger</a>, <a href="AbstractProxyServlet.html#destroy()">destroy</a>, <a href="AbstractProxyServlet.html#expects100Continue(javax.servlet.http.HttpServletRequest)">expects100Continue</a>, <a href="AbstractProxyServlet.html#findConnectionHeaders(javax.servlet.http.HttpServletRequest)">findConnectionHeaders</a>, <a href="AbstractProxyServlet.html#getBlackListHosts()">getBlackListHosts</a>, <a href="AbstractProxyServlet.html#getHostHeader()">getHostHeader</a>, <a href="AbstractProxyServlet.html#getHttpClient()">getHttpClient</a>, <a href="AbstractProxyServlet.html#getRequestId(javax.servlet.http.HttpServletRequest)">getRequestId</a>, <a href="AbstractProxyServlet.html#getTimeout()">getTimeout</a>, <a href="AbstractProxyServlet.html#getViaHost()">getViaHost</a>, <a href="AbstractProxyServlet.html#getWhiteListHosts()">getWhiteListHosts</a>, <a href="AbstractProxyServlet.html#hasContent(javax.servlet.http.HttpServletRequest)">hasContent</a>, <a href="AbstractProxyServlet.html#newClientConnector()">newClientConnector</a>, <a href="AbstractProxyServlet.html#newHttpClient()">newHttpClient</a>, <a href="AbstractProxyServlet.html#newHttpClient(org.eclipse.jetty.io.ClientConnector)">newHttpClient</a>, <a href="AbstractProxyServlet.html#newProxyRequest(javax.servlet.http.HttpServletRequest,java.lang.String)">newProxyRequest</a>, <a href="AbstractProxyServlet.html#onClientRequestFailure(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Request,javax.servlet.http.HttpServletResponse,java.lang.Throwable)">onClientRequestFailure</a>, <a href="AbstractProxyServlet.html#onProxyResponseFailure(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,org.eclipse.jetty.client.api.Response,java.lang.Throwable)">onProxyResponseFailure</a>, <a href="AbstractProxyServlet.html#onProxyResponseSuccess(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,org.eclipse.jetty.client.api.Response)">onProxyResponseSuccess</a>, <a href="AbstractProxyServlet.html#onProxyRewriteFailed(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)">onProxyRewriteFailed</a>, <a href="AbstractProxyServlet.html#onServerResponseHeaders(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,org.eclipse.jetty.client.api.Response)">onServerResponseHeaders</a>, <a href="AbstractProxyServlet.html#proxyResponseStatus(java.lang.Throwable)">proxyResponseStatus</a>, <a href="AbstractProxyServlet.html#sendProxyRequest(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,org.eclipse.jetty.client.api.Request)">sendProxyRequest</a>, <a href="AbstractProxyServlet.html#sendProxyResponseError(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,int)">sendProxyResponseError</a>, <a href="AbstractProxyServlet.html#setTimeout(long)">setTimeout</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-javax.servlet.http.HttpServlet">Methods inherited from class&nbsp;javax.servlet.http.HttpServlet</h3>
<code>doDelete, doGet, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service</code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-javax.servlet.GenericServlet">Methods inherited from class&nbsp;javax.servlet.GenericServlet</h3>
<code>getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log</code></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/11/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/11/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/11/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/11/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/11/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/11/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/11/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/11/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/11/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/11/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/11/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/11/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>BalancerServlet</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">BalancerServlet</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="init()">
<h3>init</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">init</span>()
throws <span class="exceptions">javax.servlet.ServletException</span></div>
<dl class="notes">
<dt>Overrides:</dt>
<dd><code><a href="AbstractProxyServlet.html#init()">init</a></code>&nbsp;in class&nbsp;<code><a href="AbstractProxyServlet.html" title="class in org.eclipse.jetty.proxy">AbstractProxyServlet</a></code></dd>
<dt>Throws:</dt>
<dd><code>javax.servlet.ServletException</code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="rewriteTarget(javax.servlet.http.HttpServletRequest)">
<h3>rewriteTarget</h3>
<div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/11/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">rewriteTarget</span><wbr><span class="parameters">(javax.servlet.http.HttpServletRequest&nbsp;request)</span></div>
<dl class="notes">
<dt>Overrides:</dt>
<dd><code><a href="AbstractProxyServlet.html#rewriteTarget(javax.servlet.http.HttpServletRequest)">rewriteTarget</a></code>&nbsp;in class&nbsp;<code><a href="AbstractProxyServlet.html" title="class in org.eclipse.jetty.proxy">AbstractProxyServlet</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="filterServerResponseHeader(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Response,java.lang.String,java.lang.String)">
<h3>filterServerResponseHeader</h3>
<div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/11/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">filterServerResponseHeader</span><wbr><span class="parameters">(javax.servlet.http.HttpServletRequest&nbsp;request,
<a href="../client/api/Response.html" title="interface in org.eclipse.jetty.client.api">Response</a>&nbsp;serverResponse,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;headerName,
<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;headerValue)</span></div>
<dl class="notes">
<dt>Overrides:</dt>
<dd><code><a href="AbstractProxyServlet.html#filterServerResponseHeader(javax.servlet.http.HttpServletRequest,org.eclipse.jetty.client.api.Response,java.lang.String,java.lang.String)">filterServerResponseHeader</a></code>&nbsp;in class&nbsp;<code><a href="AbstractProxyServlet.html" title="class in org.eclipse.jetty.proxy">AbstractProxyServlet</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="validateDestination(java.lang.String,int)">
<h3>validateDestination</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">validateDestination</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;host,
int&nbsp;port)</span></div>
<div class="block"><span class="descfrm-type-label">Description copied from class:&nbsp;<code><a href="AbstractProxyServlet.html#validateDestination(java.lang.String,int)">AbstractProxyServlet</a></code></span></div>
<div class="block">Checks the given <code>host</code> and <code>port</code> against whitelist and blacklist.</div>
<dl class="notes">
<dt>Overrides:</dt>
<dd><code><a href="AbstractProxyServlet.html#validateDestination(java.lang.String,int)">validateDestination</a></code>&nbsp;in class&nbsp;<code><a href="AbstractProxyServlet.html" title="class in org.eclipse.jetty.proxy">AbstractProxyServlet</a></code></dd>
<dt>Parameters:</dt>
<dd><code>host</code> - the host to check</dd>
<dd><code>port</code> - the port to check</dd>
<dt>Returns:</dt>
<dd>true if it is allowed to be proxy to the given host and port</dd>
</dl>
</section>
</li>
</ul>
</section>
</li>
</ul>
</section>
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