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| <li>Summary: </li> |
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| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">org.apache.storm.networktopography</a></div> |
| <h1 title="Class AbstractDNSToSwitchMapping" class="title">Class AbstractDNSToSwitchMapping</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.storm.networktopography.AbstractDNSToSwitchMapping</div> |
| </div> |
| <section class="class-description" id="class-description"> |
| <dl class="notes"> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><code><a href="DNSToSwitchMapping.html" title="interface in org.apache.storm.networktopography">DNSToSwitchMapping</a></code></dd> |
| </dl> |
| <dl class="notes"> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><code><a href="../testing/AlternateRackDNSToSwitchMapping.html" title="class in org.apache.storm.testing">AlternateRackDNSToSwitchMapping</a></code>, <code><a href="DefaultRackDNSToSwitchMapping.html" title="class in org.apache.storm.networktopography">DefaultRackDNSToSwitchMapping</a></code></dd> |
| </dl> |
| <hr> |
| <div class="type-signature"><span class="modifiers">public abstract class </span><span class="element-name type-name-label">AbstractDNSToSwitchMapping</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="DNSToSwitchMapping.html" title="interface in org.apache.storm.networktopography">DNSToSwitchMapping</a></span></div> |
| <div class="block">This is a base class for DNS to Switch mappings. |
| |
| <p>It is not mandatory to derive <a href="DNSToSwitchMapping.html" title="interface in org.apache.storm.networktopography"><code>DNSToSwitchMapping</code></a> implementations from it, but it is strongly recommended, |
| as it makes it easy for the developers to add new methods to this base class that are automatically picked up by all |
| implementations.</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="inherited-list"> |
| <h3 id="fields-inherited-from-class-org.apache.storm.networktopography.DNSToSwitchMapping">Fields inherited from interface org.apache.storm.networktopography.<a href="DNSToSwitchMapping.html" title="interface in org.apache.storm.networktopography">DNSToSwitchMapping</a></h3> |
| <code><a href="DNSToSwitchMapping.html#DEFAULT_RACK">DEFAULT_RACK</a></code></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 three-column-summary"> |
| <div class="table-header col-first">Modifier</div> |
| <div class="table-header col-second">Constructor</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color"><code>protected </code></div> |
| <div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E()" class="member-name-link">AbstractDNSToSwitchMapping</a>()</code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">Create an unconfigured instance.</div> |
| </div> |
| </div> |
| </section> |
| </li> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <li> |
| <section class="method-summary" id="method-summary"> |
| <h2>Method Summary</h2> |
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| <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="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="#dumpTopology()" class="member-name-link">dumpTopology</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Generate a string listing the switch mapping implementation, the mapping for every known node and the number of nodes and unique |
| switches known about -each entry to a separate line.</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/util/Map.html" title="class or interface in java.util" class="external-link">Map</a><<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>,<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>></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getSwitchMap()" class="member-name-link">getSwitchMap</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Get a copy of the map (for diagnostics).</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="#isSingleSwitch()" class="member-name-link">isSingleSwitch</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Predicate that indicates that the switch mapping is known to be single-switch.</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class 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> |
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| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-org.apache.storm.networktopography.DNSToSwitchMapping">Methods inherited from interface org.apache.storm.networktopography.<a href="DNSToSwitchMapping.html" title="interface in org.apache.storm.networktopography">DNSToSwitchMapping</a></h3> |
| <code><a href="DNSToSwitchMapping.html#resolve(java.util.List)">resolve</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="<init>()"> |
| <h3>AbstractDNSToSwitchMapping</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="element-name">AbstractDNSToSwitchMapping</span>()</div> |
| <div class="block">Create an unconfigured instance.</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="isSingleSwitch()"> |
| <h3>isSingleSwitch</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">boolean</span> <span class="element-name">isSingleSwitch</span>()</div> |
| <div class="block">Predicate that indicates that the switch mapping is known to be single-switch. The base class returns false: it assumes all mappings |
| are multi-rack. Subclasses may override this with methods that are more aware of their topologies.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>true if the mapping thinks that it is on a single switch</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getSwitchMap()"> |
| <h3>getSwitchMap</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a><<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>,<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>></span> <span class="element-name">getSwitchMap</span>()</div> |
| <div class="block">Get a copy of the map (for diagnostics).</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>a clone of the map or null for none known</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="dumpTopology()"> |
| <h3>dumpTopology</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <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> <span class="element-name">dumpTopology</span>()</div> |
| <div class="block">Generate a string listing the switch mapping implementation, the mapping for every known node and the number of nodes and unique |
| switches known about -each entry to a separate line.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>a string that can be presented to the ops team or used in debug messages.</dd> |
| </dl> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
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