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| <h1 title="Package" class="title">Package org.apache.edgent.providers.iot</h1> |
| <div class="docSummary"> |
| <div class="block">Iot provider that allows multiple applications to |
| share an <code>IotDevice</code>.</div> |
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| <p>See: <a href="#package.description">Description</a></p> |
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| <th class="colFirst" scope="col">Class</th> |
| <th class="colLast" scope="col">Description</th> |
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| <td class="colFirst"><a href="../../../../../org/apache/edgent/providers/iot/IotProvider.html" title="class in org.apache.edgent.providers.iot">IotProvider</a></td> |
| <td class="colLast"> |
| <div class="block">IoT provider supporting multiple topologies with a single connection to a |
| message hub.</div> |
| </td> |
| </tr> |
| </tbody> |
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| <h2 title="Package org.apache.edgent.providers.iot Description">Package org.apache.edgent.providers.iot Description</h2> |
| <div class="block">Iot provider that allows multiple applications to |
| share an <code>IotDevice</code>. |
| |
| <H3>IoT device</H3> |
| |
| <H3>Application registration</H3> |
| The provider includes an <a href="../../../../../org/apache/edgent/topology/services/ApplicationService.html" title="interface in org.apache.edgent.topology.services"><code>ApplicationService</code></a> that allows applications |
| to be registered by name. Once registered an application can be started (and stopped) remotely |
| through the control service using a device command. |
| |
| <H3>Supported device commands</H3> |
| This provider supports a number of system level device commands to control the applications |
| running within it. |
| <H4>Control service</H4> |
| Device commands with the command identifier '<a href="../../../../../org/apache/edgent/connectors/iot/Commands.html#CONTROL_SERVICE"><code>edgentControl</code></a>' |
| are sent to the provider's control service, an instance of <a href="../../../../../org/apache/edgent/runtime/jsoncontrol/JsonControlService.html" title="class in org.apache.edgent.runtime.jsoncontrol"><code>JsonControlService</code></a>. |
| This allows invocation of an operation against a control mbean registered with the |
| control service, either by an application or the provider itself. |
| <BR> |
| The command's data (JSON) uniquely identifies a control MBean through its type and |
| alias, and indicates the operation to call on the MBean and the arguments to |
| pass to the operation. |
| <BR> |
| Thus any control operation can be remotely invoked through a <code>edgentControl</code> device command, |
| including arbitrary control mbeans registered by applications. |
| |
| <H4 id="providerOps">Provider operations</H4> |
| <table border="1" summary="Provider operations"> |
| <tr> |
| <th id="operation">Operation</th><th id="cmdIdentifier">Command identifier</th> |
| <th id="type">type</th><th id="alias">alias</th><th id="op">op</th><th id="args">args</th> |
| <th id="controlMbean">Control MBean</th> |
| </tr> |
| <tr> |
| <td rowspan="2" headers="operation"><strong>Submit (start) a registered application</strong></td> |
| <td headers="cmdIdentifier"><code>edgentControl</code></td> |
| <td headers="type"><code>appService</code></td> |
| <td headers="alias"><code>edgent</code></td> |
| <td headers="op"><a href="../../../../../org/apache/edgent/topology/mbeans/ApplicationServiceMXBean.html#submit-java.lang.String-java.lang.String-"><code>submit</code></a></td> |
| <td headers="args"><em><code>[applicationName, configJSONObject]</code></em></td> |
| <td headers="controlMbean"><a href="../../../../../org/apache/edgent/topology/mbeans/ApplicationServiceMXBean.html" title="interface in org.apache.edgent.topology.mbeans"><code>ApplicationServiceMXBean</code></a></td> |
| </tr> |
| <tr> |
| <td headers="cmdIdentifier"><strong>Sample command data</strong></td> |
| <td colspan=5 headers="type alias op args controlMbean"><code>{"type":"appService","alias":"edgent","op":"submit","args":["Heartbeat",{}]}</code></td> |
| </tr> |
| <tr></tr> |
| |
| <tr> |
| <td rowspan="2" headers="operation"><strong>Close (stop) a running registered application</strong></td> |
| <td headers="cmdIdentifier"><code>edgentControl</code></td> |
| <td headers="type"><code>job</code></td> |
| <td headers="alias"><em><code>applicationName</code></em></td> |
| <td headers="op"><a href="../../../../../org/apache/edgent/execution/mbeans/JobMXBean.html#stateChange-org.apache.edgent.execution.Job.Action-"><code>stateChange</code></a></td> |
| <td headers="args"><code>["CLOSE"]</code></td> |
| <td headers="controlMbean"><a href="../../../../../org/apache/edgent/execution/mbeans/JobMXBean.html" title="interface in org.apache.edgent.execution.mbeans"><code>JobMXBean</code></a></td> |
| </tr> |
| <tr> |
| <td headers="cmdIdentifier"><strong>Sample command data</strong></td> |
| <td colspan=5 headers="type alias op args controlMbean"><code>{"type":"job","alias":"Heartbeat","op":"stateChange","args":["CLOSE"]}</code></td> |
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