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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://issues.shibboleth.net/jira/browse/JSPD" style="color: #3b73af; text-decoration: none">Service Provider - Java Daemon</a> / <a href="https://issues.shibboleth.net/jira/browse/JSPD-1" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-4175f426-00b7-4d29-8ffc-a729d5dfab71" height="16" width="16" border="0" align="absmiddle" alt="Task" style="vertical-align: text-bottom"></a> <a href="https://issues.shibboleth.net/jira/browse/JSPD-1" style="color: #3b73af; text-decoration: none">JSPD-1</a> </td>
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<td style="vertical-align: top;; padding: 0px; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://issues.shibboleth.net/jira/browse/JSPD-1" style="color: #3b73af; text-decoration: none">Build socket server skeleton on top of a Spring ApplicationContext</a> </span> </td>
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="cantor.2@osu.edu" id="email_cantor.2@osu.edu" href="https://issues.shibboleth.net/jira/secure/ViewProfile.jspa?name=cantor.2%40osu.edu" style="color:#0052cc;; color: #3b73af; text-decoration: none">Scott Cantor</a> </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Created:</th>
<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 07/May/21 7:06 PM </td>
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="cantor.2@osu.edu" id="email_cantor.2@osu.edu" href="https://issues.shibboleth.net/jira/secure/ViewProfile.jspa?name=cantor.2%40osu.edu" style="color:#0052cc;; color: #3b73af; text-decoration: none">Scott Cantor</a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0; margin-top: 0">The "skeleton" of a new shibd in Java would be a Spring Application (not webapp) that included a component to listen for socket connections and a mechanism for dispatching connected sockets to worker threads.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">The C++ design was very primitive in the area of thread management because I left each bound socket owned by the job thread and had them continue to service requests until the socket disconnected. That didn't bound the size of the job thread pool because of the 1:1 relationship.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">The new design has to do what the modern web servers do and separate the connected socket management from the job management so that sockets get passed to the workers and then returned until another message comes through.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">It doesn't need to be asynchronous by any means, just separated so that the count of workers can be controlled.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">I don't know if there are libraries out there that model this, but I didn't see anything obvious in Spring itself or any Spring projects I looked at.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">The current socket code in the SP is all under shibsp/remoting/impl/ and there's a base class for generic sockets and a concrete pair for Unix and TCP. I think there are some JNI libraries that support domain sockets. I'm not overly concerned about supporting that but if it's not a big pile of work it might be nice. Windows is even gaining support for them I think.</p> </td>
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