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| |
| <h1>Java Naming and Directory Interface (JNDI)</h1> |
| </div> |
| </div> |
| </div> |
| <div class="row"> |
| |
| <div class="col-md-12"> |
| <div id="preamble"> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>TomEE has several JNDI client intended for multiple usages.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_default_one">Default one</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>In a standalone instance you generally don’t need (or want) to specify anything |
| to do a lookup. Doing so you will inherit from the contextual environment:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code class="language-java" data-lang="java">final Context ctx = new InitialContext(); |
| ctx.lookup("java:....");</code></pre> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_localinitialcontextfactory">LocalInitialContextFactory</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>This is the legacy context factory used by OpenEJB. It is still useful to fallback |
| on the "default" one in embedded mode where sometimes classloaders or libraries can mess |
| up the automatic conextual context.</p> |
| </div> |
| <div class="paragraph"> |
| <p>Usage:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code class="language-java" data-lang="java">Properties properties = new Properties(); |
| properties.setProperty(Context.INITIAL_CONTEXT_FACTORY, "org.apache.openejb.core.LocalInitialContextFactory"); |
| final Context ctx = new InitialContext(properties); |
| ctx.lookup("java:....");</code></pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>This context factory supports few more options when <strong>you boot the container</strong> creating a context:</p> |
| </div> |
| <table class="tableblock frame-all grid-all spread"> |
| <colgroup> |
| <col style="width: 50%;"> |
| <col style="width: 50%;"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">Name</p></td> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">Description</p></td> |
| </tr> |
| <tr> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">openejb.embedded.remotable</p></td> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">true/false: starts embedded services</p></td> |
| </tr> |
| <tr> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">Context.SECURITY_PRINCIPAL/Context.SECURITY_CREDENTIALS</p></td> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">the <strong>global</strong> security identity for the whole container</p></td> |
| </tr> |
| </tbody> |
| </table> |
| <div class="admonitionblock important"> |
| <table> |
| <tr> |
| <td class="icon"> |
| <i class="fa icon-important" title="Important"></i> |
| </td> |
| <td class="content"> |
| <code>Context.SECURITY_*</code> shouldn’t be used for runtime lookups with <code>LocalInitialContextFactory</code>, it would leak a security identity and make the runtime no more thread safe. |
| This factory was deprecated starting with 7.0.2 in favor of <code>org.apache.openejb.core.OpenEJBInitialContextFactory</code>. |
| </td> |
| </tr> |
| </table> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_openejbinitialcontextfactory">OpenEJBInitialContextFactory</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>This factory allows you to access local EJB and container resources.</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code class="language-java" data-lang="java">Properties properties = new Properties(); |
| properties.setProperty(Context.INITIAL_CONTEXT_FACTORY, "org.apache.openejb.core.OpenEJBInitialContextFactory"); |
| final Context ctx = new InitialContext(properties); |
| ctx.lookup("java:....");</code></pre> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_remoteinitialcontextfactory">RemoteInitialContextFactory</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Intended to be used to contact a remote server, the <code>org.apache.openejb.client.RemoteInitialContextFactory</code> relies on the provider url |
| to contact a tomee instance:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code class="language-java" data-lang="java">Properties p = new Properties(); |
| p.put(Context.INITIAL_CONTEXT_FACTORY, "org.apache.openejb.client.RemoteInitialContextFactory"); |
| p.put(Context.PROVIDER_URL, "failover:ejbd://192.168.1.20:4201,ejbd://192.168.1.30:4201"); |
| |
| final InitialContext remoteContext = new InitialContext(p); |
| ctx.lookup("java:....");</code></pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>Contrarly to local one, the remote factory supports <code>Context.SECURITY_*</code> options in a thread safe manner and you can do lookups at runtime using them.</p> |
| </div> |
| <div class="paragraph"> |
| <p>See <a href="../../admin/cluster/index.html">Cluster</a> page for more details on the options.</p> |
| </div> |
| <div class="sect2"> |
| <h3 id="_security">Security</h3> |
| <div class="paragraph"> |
| <p>The context configuration can take additional configuration to handle EJB security:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code class="language-properties" data-lang="properties">p.put("openejb.authentication.realmName", "my-realm"); // optional |
| p.put(Context.SECURITY_PRINCIPAL, "alfred"); |
| p.put(Context.SECURITY_CREDENTIALS, "bat");</code></pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>The realm will be used by JAAS to get the right LoginModules and principal/credentials to |
| do the actual authentication.</p> |
| </div> |
| <div class="sect3"> |
| <h4 id="_http_case">HTTP case</h4> |
| <div class="paragraph"> |
| <p>Often HTTP layer is secured and in this case you need to authenticate before the EJBd (remote EJB TomEE protocol) layer. |
| Thanks to TomEE/Tomcat integration login there will propagate to the EJBd context.</p> |
| </div> |
| <div class="paragraph"> |
| <p>This can be done passing the token you need to set as <code>Authorization</code> header in the <code>PROVIDER_URL</code>:</p> |
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