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<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.qpid.protonj2.engine.sasl.client</a></div>
<h1 title="Class AbstractMechanism" class="title">Class AbstractMechanism</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">org.apache.qpid.protonj2.engine.sasl.client.AbstractMechanism</div>
</div>
<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Implemented Interfaces:</dt>
<dd><code><a href="Mechanism.html" title="interface in org.apache.qpid.protonj2.engine.sasl.client">Mechanism</a></code></dd>
</dl>
<dl class="notes">
<dt>Direct Known Subclasses:</dt>
<dd><code><a href="AnonymousMechanism.html" title="class in org.apache.qpid.protonj2.engine.sasl.client">AnonymousMechanism</a></code>, <code><a href="CramMD5Mechanism.html" title="class in org.apache.qpid.protonj2.engine.sasl.client">CramMD5Mechanism</a></code>, <code><a href="ExternalMechanism.html" title="class in org.apache.qpid.protonj2.engine.sasl.client">ExternalMechanism</a></code>, <code><a href="PlainMechanism.html" title="class in org.apache.qpid.protonj2.engine.sasl.client">PlainMechanism</a></code>, <code><a href="ScramSHA1Mechanism.html" title="class in org.apache.qpid.protonj2.engine.sasl.client">ScramSHA1Mechanism</a></code>, <code><a href="ScramSHA256Mechanism.html" title="class in org.apache.qpid.protonj2.engine.sasl.client">ScramSHA256Mechanism</a></code>, <code><a href="ScramSHA512Mechanism.html" title="class in org.apache.qpid.protonj2.engine.sasl.client">ScramSHA512Mechanism</a></code>, <code><a href="XOauth2Mechanism.html" title="class in org.apache.qpid.protonj2.engine.sasl.client">XOauth2Mechanism</a></code></dd>
</dl>
<hr>
<div class="type-signature"><span class="modifiers">public abstract class </span><span class="element-name type-name-label">AbstractMechanism</span>
<span class="extends-implements">extends <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>
implements <a href="Mechanism.html" title="interface in org.apache.qpid.protonj2.engine.sasl.client">Mechanism</a></span></div>
<div class="block">Base class for SASL Authentication Mechanism that implements the basic
methods of a Mechanism class.</div>
</section>
<section class="summary">
<ul class="summary-list">
<!-- =========== FIELD SUMMARY =========== -->
<li>
<section class="field-summary" id="field-summary">
<h2>Field Summary</h2>
<div class="caption"><span>Fields</span></div>
<div class="summary-table three-column-summary">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Field</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color"><code>protected static final <a href="../../../buffer/ProtonBuffer.html" title="interface in org.apache.qpid.protonj2.buffer">ProtonBuffer</a></code></div>
<div class="col-second even-row-color"><code><a href="#EMPTY" class="member-name-link">EMPTY</a></code></div>
<div class="col-last even-row-color">&nbsp;</div>
</div>
</section>
</li>
<!-- ======== 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">AbstractMechanism</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-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>
<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-tab2 method-summary-table-tab4"><code><a href="../../../buffer/ProtonBuffer.html" title="interface in org.apache.qpid.protonj2.buffer">ProtonBuffer</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getChallengeResponse(org.apache.qpid.protonj2.engine.sasl.client.SaslCredentialsProvider,org.apache.qpid.protonj2.buffer.ProtonBuffer)" class="member-name-link">getChallengeResponse</a><wbr>(<a href="SaslCredentialsProvider.html" title="interface in org.apache.qpid.protonj2.engine.sasl.client">SaslCredentialsProvider</a>&nbsp;credentials,
<a href="../../../buffer/ProtonBuffer.html" title="interface in org.apache.qpid.protonj2.buffer">ProtonBuffer</a>&nbsp;challenge)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Create a response based on a given challenge from the remote peer.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="../../../buffer/ProtonBuffer.html" title="interface in org.apache.qpid.protonj2.buffer">ProtonBuffer</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getInitialResponse(org.apache.qpid.protonj2.engine.sasl.client.SaslCredentialsProvider)" class="member-name-link">getInitialResponse</a><wbr>(<a href="SaslCredentialsProvider.html" title="interface in org.apache.qpid.protonj2.engine.sasl.client">SaslCredentialsProvider</a>&nbsp;credentials)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Create an initial response based on selected mechanism.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>boolean</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#isEnabledByDefault()" class="member-name-link">isEnabledByDefault</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Allows the mechanism to indicate if it is enabled by default, or only when explicitly enabled
through configuring the permitted SASL mechanisms.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><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 odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#toString()" class="member-name-link">toString</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>void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#verifyCompletion()" class="member-name-link">verifyCompletion</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Verifies that the SASL exchange has completed successfully.</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/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#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>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.qpid.protonj2.engine.sasl.client.Mechanism">Methods inherited from interface&nbsp;org.apache.qpid.protonj2.engine.sasl.client.<a href="Mechanism.html" title="interface in org.apache.qpid.protonj2.engine.sasl.client">Mechanism</a></h3>
<code><a href="Mechanism.html#getName()">getName</a>, <a href="Mechanism.html#isApplicable(org.apache.qpid.protonj2.engine.sasl.client.SaslCredentialsProvider)">isApplicable</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ============ FIELD DETAIL =========== -->
<li>
<section class="field-details" id="field-detail">
<h2>Field Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="EMPTY">
<h3>EMPTY</h3>
<div class="member-signature"><span class="modifiers">protected static final</span>&nbsp;<span class="return-type"><a href="../../../buffer/ProtonBuffer.html" title="interface in org.apache.qpid.protonj2.buffer">ProtonBuffer</a></span>&nbsp;<span class="element-name">EMPTY</span></div>
</section>
</li>
</ul>
</section>
</li>
<!-- ========= 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>AbstractMechanism</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">AbstractMechanism</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="getInitialResponse(org.apache.qpid.protonj2.engine.sasl.client.SaslCredentialsProvider)">
<h3>getInitialResponse</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="../../../buffer/ProtonBuffer.html" title="interface in org.apache.qpid.protonj2.buffer">ProtonBuffer</a></span>&nbsp;<span class="element-name">getInitialResponse</span><wbr><span class="parameters">(<a href="SaslCredentialsProvider.html" title="interface in org.apache.qpid.protonj2.engine.sasl.client">SaslCredentialsProvider</a>&nbsp;credentials)</span>
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.security.sasl/javax/security/sasl/SaslException.html" title="class or interface in javax.security.sasl" class="external-link">SaslException</a></span></div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="Mechanism.html#getInitialResponse(org.apache.qpid.protonj2.engine.sasl.client.SaslCredentialsProvider)">Mechanism</a></code></span></div>
<div class="block">Create an initial response based on selected mechanism.
May be null if there is no initial response.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="Mechanism.html#getInitialResponse(org.apache.qpid.protonj2.engine.sasl.client.SaslCredentialsProvider)">getInitialResponse</a></code>&nbsp;in interface&nbsp;<code><a href="Mechanism.html" title="interface in org.apache.qpid.protonj2.engine.sasl.client">Mechanism</a></code></dd>
<dt>Parameters:</dt>
<dd><code>credentials</code> - The credentials that are supplied for this SASL negotiation.</dd>
<dt>Returns:</dt>
<dd>the initial response, or null if there isn't one.</dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.security.sasl/javax/security/sasl/SaslException.html" title="class or interface in javax.security.sasl" class="external-link">SaslException</a></code> - if an error occurs generating the initial response.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getChallengeResponse(org.apache.qpid.protonj2.engine.sasl.client.SaslCredentialsProvider,org.apache.qpid.protonj2.buffer.ProtonBuffer)">
<h3>getChallengeResponse</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="../../../buffer/ProtonBuffer.html" title="interface in org.apache.qpid.protonj2.buffer">ProtonBuffer</a></span>&nbsp;<span class="element-name">getChallengeResponse</span><wbr><span class="parameters">(<a href="SaslCredentialsProvider.html" title="interface in org.apache.qpid.protonj2.engine.sasl.client">SaslCredentialsProvider</a>&nbsp;credentials,
<a href="../../../buffer/ProtonBuffer.html" title="interface in org.apache.qpid.protonj2.buffer">ProtonBuffer</a>&nbsp;challenge)</span>
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.security.sasl/javax/security/sasl/SaslException.html" title="class or interface in javax.security.sasl" class="external-link">SaslException</a></span></div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="Mechanism.html#getChallengeResponse(org.apache.qpid.protonj2.engine.sasl.client.SaslCredentialsProvider,org.apache.qpid.protonj2.buffer.ProtonBuffer)">Mechanism</a></code></span></div>
<div class="block">Create a response based on a given challenge from the remote peer.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="Mechanism.html#getChallengeResponse(org.apache.qpid.protonj2.engine.sasl.client.SaslCredentialsProvider,org.apache.qpid.protonj2.buffer.ProtonBuffer)">getChallengeResponse</a></code>&nbsp;in interface&nbsp;<code><a href="Mechanism.html" title="interface in org.apache.qpid.protonj2.engine.sasl.client">Mechanism</a></code></dd>
<dt>Parameters:</dt>
<dd><code>credentials</code> - The credentials that are supplied for this SASL negotiation.</dd>
<dd><code>challenge</code> - The challenge that this Mechanism should response to.</dd>
<dt>Returns:</dt>
<dd>the response that answers the given challenge.</dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.security.sasl/javax/security/sasl/SaslException.html" title="class or interface in javax.security.sasl" class="external-link">SaslException</a></code> - if an error occurs generating the challenge response.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="verifyCompletion()">
<h3>verifyCompletion</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">verifyCompletion</span>()
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.security.sasl/javax/security/sasl/SaslException.html" title="class or interface in javax.security.sasl" class="external-link">SaslException</a></span></div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="Mechanism.html#verifyCompletion()">Mechanism</a></code></span></div>
<div class="block">Verifies that the SASL exchange has completed successfully. This is
an opportunity for the mechanism to ensure that all mandatory
steps have been completed successfully and to cleanup and resources
that are held by this Mechanism.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="Mechanism.html#verifyCompletion()">verifyCompletion</a></code>&nbsp;in interface&nbsp;<code><a href="Mechanism.html" title="interface in org.apache.qpid.protonj2.engine.sasl.client">Mechanism</a></code></dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.security.sasl/javax/security/sasl/SaslException.html" title="class or interface in javax.security.sasl" class="external-link">SaslException</a></code> - if the outcome of the SASL exchange is not valid for this Mechanism</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="isEnabledByDefault()">
<h3>isEnabledByDefault</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">isEnabledByDefault</span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="Mechanism.html#isEnabledByDefault()">Mechanism</a></code></span></div>
<div class="block">Allows the mechanism to indicate if it is enabled by default, or only when explicitly enabled
through configuring the permitted SASL mechanisms. Any mechanism selection logic should examine
this value along with the configured allowed mechanism and decide if this one should be used.
Typically most mechanisms can be enabled by default but some require explicit configuration
in order to operate which implies that selecting them by default would always cause an authentication
error if that mechanism matches the highest priority value offered by the remote peer.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="Mechanism.html#isEnabledByDefault()">isEnabledByDefault</a></code>&nbsp;in interface&nbsp;<code><a href="Mechanism.html" title="interface in org.apache.qpid.protonj2.engine.sasl.client">Mechanism</a></code></dd>
<dt>Returns:</dt>
<dd>true if this Mechanism is enabled by default.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="toString()">
<h3>toString</h3>
<div class="member-signature"><span class="modifiers">public</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">toString</span>()</div>
<dl class="notes">
<dt>Overrides:</dt>
<dd><code><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></code>&nbsp;in class&nbsp;<code><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></code></dd>
</dl>
</section>
</li>
</ul>
</section>
</li>
</ul>
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