<?xml version="1.0" encoding="UTF-8" standalone="no"?><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" contentScriptType="application/ecmascript" contentStyleType="text/css" height="327.6px" preserveAspectRatio="none" style="width:662px;height:327px;" version="1.1" viewBox="0 0 662 327" width="662.4px" zoomAndPan="magnify"><defs><filter height="300%" id="f1haa4yxqnzi8u" width="300%" x="-1" y="-1"><feGaussianBlur result="blurOut" stdDeviation="2.4"/><feColorMatrix in="blurOut" result="blurOut2" type="matrix" values="0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .4 0"/><feOffset dx="4.8" dy="4.8" in="blurOut2" result="blurOut3"/><feBlend in="SourceGraphic" in2="blurOut3" mode="normal"/></filter></defs><g><rect fill="#FFFFFF" filter="url(#f1haa4yxqnzi8u)" height="34.9594" style="stroke: #A80036; stroke-width: 1.2;" width="12" x="525" y="83.3156"/><rect fill="#FFFFFF" filter="url(#f1haa4yxqnzi8u)" height="34.9594" style="stroke: #A80036; stroke-width: 1.2;" width="12" x="525" y="153.2344"/><rect fill="#FFFFFF" filter="url(#f1haa4yxqnzi8u)" height="34.9594" style="stroke: #A80036; stroke-width: 1.2;" width="12" x="525" y="223.1531"/><line style="stroke: #A80036; stroke-width: 1.2; stroke-dasharray: 5.0,5.0;" x1="43.2" x2="43.2" y1="45.9563" y2="279.7125"/><line style="stroke: #A80036; stroke-width: 1.2; stroke-dasharray: 5.0,5.0;" x1="531" x2="531" y1="45.9563" y2="279.7125"/><rect fill="#FEFECE" filter="url(#f1haa4yxqnzi8u)" height="36.3562" style="stroke: #A80036; stroke-width: 1.7999999999999998;" width="63.6" x="9.6" y="3.6"/><text fill="#000000" font-family="sans-serif" font-size="16.8" lengthAdjust="spacingAndGlyphs" textLength="46.8" x="18" y="27.5941">Client</text><rect fill="#FEFECE" filter="url(#f1haa4yxqnzi8u)" height="36.3562" style="stroke: #A80036; stroke-width: 1.7999999999999998;" width="63.6" x="9.6" y="278.5125"/><text fill="#000000" font-family="sans-serif" font-size="16.8" lengthAdjust="spacingAndGlyphs" textLength="46.8" x="18" y="302.5066">Client</text><rect fill="#FEFECE" filter="url(#f1haa4yxqnzi8u)" height="36.3562" style="stroke: #A80036; stroke-width: 1.7999999999999998;" width="242.4" x="407.4" y="3.6"/><text fill="#000000" font-family="sans-serif" font-size="16.8" lengthAdjust="spacingAndGlyphs" textLength="225.6" x="415.8" y="27.5941">Device Registration Service</text><rect fill="#FEFECE" filter="url(#f1haa4yxqnzi8u)" height="36.3562" style="stroke: #A80036; stroke-width: 1.7999999999999998;" width="242.4" x="407.4" y="278.5125"/><text fill="#000000" font-family="sans-serif" font-size="16.8" lengthAdjust="spacingAndGlyphs" textLength="225.6" x="415.8" y="302.5066">Device Registration Service</text><rect fill="#FFFFFF" filter="url(#f1haa4yxqnzi8u)" height="34.9594" style="stroke: #A80036; stroke-width: 1.2;" width="12" x="525" y="83.3156"/><rect fill="#FFFFFF" filter="url(#f1haa4yxqnzi8u)" height="34.9594" style="stroke: #A80036; stroke-width: 1.2;" width="12" x="525" y="153.2344"/><rect fill="#FFFFFF" filter="url(#f1haa4yxqnzi8u)" height="34.9594" style="stroke: #A80036; stroke-width: 1.2;" width="12" x="525" y="223.1531"/><polygon fill="#A80036" points="510.6,78.5156,522.6,83.3156,510.6,88.1156,515.4,83.3156" style="stroke: #A80036; stroke-width: 1.2;"/><line style="stroke: #A80036; stroke-width: 1.2;" x1="43.8" x2="517.8" y1="83.3156" y2="83.3156"/><text fill="#000000" font-family="sans-serif" font-size="15.6" lengthAdjust="spacingAndGlyphs" textLength="67.2" x="52.2" y="77.2365">1.1 open</text><polygon fill="#A80036" points="57,113.475,45,118.275,57,123.075,52.2,118.275" style="stroke: #A80036; stroke-width: 1.2;"/><line style="stroke: #A80036; stroke-width: 1.2;" x1="49.8" x2="529.8" y1="118.275" y2="118.275"/><text fill="#000000" font-family="sans-serif" font-size="15.6" lengthAdjust="spacingAndGlyphs" textLength="67.2" x="64.2" y="112.1959">1.2 open</text><polygon fill="#A80036" points="510.6,148.4344,522.6,153.2344,510.6,158.0344,515.4,153.2344" style="stroke: #A80036; stroke-width: 1.2;"/><line style="stroke: #A80036; stroke-width: 1.2;" x1="43.8" x2="517.8" y1="153.2344" y2="153.2344"/><text fill="#000000" font-family="sans-serif" font-size="15.6" lengthAdjust="spacingAndGlyphs" textLength="357.6" x="52.2" y="147.1553">2.1 attach(sender, "registration/${tenant_id}")</text><polygon fill="#A80036" points="57,183.3937,45,188.1938,57,192.9938,52.2,188.1938" style="stroke: #A80036; stroke-width: 1.2;"/><line style="stroke: #A80036; stroke-width: 1.2;" x1="49.8" x2="529.8" y1="188.1938" y2="188.1938"/><text fill="#000000" font-family="sans-serif" font-size="15.6" lengthAdjust="spacingAndGlyphs" textLength="366" x="64.2" y="182.1146">2.2 attach(receiver, "registration/${tenant_id}")</text><polygon fill="#A80036" points="510.6,218.3531,522.6,223.1531,510.6,227.9531,515.4,223.1531" style="stroke: #A80036; stroke-width: 1.2;"/><line style="stroke: #A80036; stroke-width: 1.2;" x1="43.8" x2="517.8" y1="223.1531" y2="223.1531"/><text fill="#000000" font-family="sans-serif" font-size="15.6" lengthAdjust="spacingAndGlyphs" textLength="458.4" x="52.2" y="217.074">3.1 attach(receiver, "registration/${tenant_id}/${reply-to}")</text><polygon fill="#A80036" points="57,253.3125,45,258.1125,57,262.9125,52.2,258.1125" style="stroke: #A80036; stroke-width: 1.2;"/><line style="stroke: #A80036; stroke-width: 1.2;" x1="49.8" x2="529.8" y1="258.1125" y2="258.1125"/><text fill="#000000" font-family="sans-serif" font-size="15.6" lengthAdjust="spacingAndGlyphs" textLength="450" x="64.2" y="252.0334">3.2 attach(sender, "registration/${tenant_id}/${reply-to}")</text><!--
@startuml
scale 1.2

Client -> "Device Registration Service"++: 1.1 open
"Device Registration Service" -> Client- -: 1.2 open
Client -> "Device Registration Service"++: 2.1 attach(sender, "registration/${tenant_id}")
"Device Registration Service" -> Client- -: 2.2 attach(receiver, "registration/${tenant_id}")
Client -> "Device Registration Service"++: 3.1 attach(receiver, "registration/${tenant_id}/${reply-to}")
"Device Registration Service" -> Client- -: 3.2 attach(sender, "registration/${tenant_id}/${reply-to}")
@enduml

PlantUML version 1.2019.07beta1(Unknown compile time)
(GPL source distribution)
Java Runtime: Java(TM) SE Runtime Environment
JVM: Java HotSpot(TM) 64-Bit Server VM
Java Version: 1.7.0_25-b15
Operating System: Linux
Default Encoding: UTF-8
Language: en
Country: US
--></g></svg>