diff options
author | Jim Hahn <jrh3@att.com> | 2020-10-16 14:17:43 +0000 |
---|---|---|
committer | Gerrit Code Review <gerrit@onap.org> | 2020-10-16 14:17:43 +0000 |
commit | 5190c58837149c4599182d211d8ae5bd83003d34 (patch) | |
tree | 6186091f088a43623a2b9ebf9b203fc33e90825a /plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restserver/src/site-docs | |
parent | c293413c1c46d3c59ff8a855d683f4614bbe644a (diff) | |
parent | 0cf967c0239a8ab9c8b8831b700b72d9a08f7b03 (diff) |
Merge "Remove apex asciidoc documents"
Diffstat (limited to 'plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restserver/src/site-docs')
-rw-r--r-- | plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restserver/src/site-docs/adoc/fragments/ct-restserver-io.adoc | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restserver/src/site-docs/adoc/fragments/ct-restserver-io.adoc b/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restserver/src/site-docs/adoc/fragments/ct-restserver-io.adoc deleted file mode 100644 index c6c9a0865..000000000 --- a/plugins/plugins-event/plugins-event-carrier/plugins-event-carrier-restserver/src/site-docs/adoc/fragments/ct-restserver-io.adoc +++ /dev/null @@ -1,134 +0,0 @@ -// -// ============LICENSE_START======================================================= -// Copyright (C) 2016-2018 Ericsson. All rights reserved. -// ================================================================================ -// This file is licensed under the CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE -// Full license text at https://creativecommons.org/licenses/by/4.0/legalcode -// -// SPDX-License-Identifier: CC-BY-4.0 -// ============LICENSE_END========================================================= -// -// @author Sven van der Meer (sven.van.der.meer@ericsson.com) -// - -== REST Server IO - -APEX supports a REST server for input and output. - -The REST server plugin always uses a synchronous mode. -A client does a HTTP GET on the APEX REST server with the input event and receives the generated output event in the server reply. -This means that for the REST server there has to always to be an input with an associated output. -Input or output only are not permitted. - -The plugin will start a Grizzly server as REST server for a normal APEX engine. -If the APEX engine is executed as a servlet, for instance inside Tomcat, then Tomcat will be used as REST server (this case requires configuration on Tomcat as well). - -Some configuration restrictions apply for all scenarios: - -- Minimum port: 1024 -- Maximum port: 65535 -- The media type is `application/json`, so this plugin does only work with the JSON Event protocol. - -The URL the client calls is created using - -- the configured host and port, e.g. `http://localhost:12345` -- the standard path, e.g. `/apex/` -- the name of the input/output, e.g. `FirstConsumer/` -- the input or output name, e.g. `EventIn`. - -The examples above lead to the URL `http://localhost:12345/apex/FirstConsumer/EventIn`. - -A client can also get status information of the REST server using `/Status`, e.g. `http://localhost:12345/apex/FirstConsumer/Status`. - - -=== REST Server Stand-alone - -We need to configure a REST server input and a REST server output. -Input and output are associated with each other via there name. - -Timeouts for REST calls need to be set carefully. -If they are too short, the call might timeout before a policy finished creating an event. - -The following example configures the input named as `MyConsumer` and associates an output named `MyProducer` with it. - -[source%nowrap,json] ----- -"eventInputParameters": { - "MyConsumer": { - "carrierTechnologyParameters" : { - "carrierTechnology" : "RESTSERVER", <1> - "parameterClassName" : - "org.onap.policy.apex.plugins.event.carrier.restserver.RESTServerCarrierTechnologyParameters", - "parameters" : { - "standalone" : true, <2> - "host" : "localhost", <3> - "port" : 12345 <4> - } - }, - "eventProtocolParameters":{ - "eventProtocol" : "JSON" <5> - }, - "synchronousMode" : true, <6> - "synchronousPeer" : "MyProducer", <7> - "synchronousTimeout" : 500 <8> - } -} ----- -<1> set REST server as carrier technology -<2> set the server as stand-alone -<3> set the server host -<4> set the server listen port -<5> use JSON event protocol -<6> activate synchronous mode -<7> associate an output `MyProducer` -<8> set a timeout of 500 milliseconds - - -The following example configures the output named as `MyProducer` and associates the input `MyConsumer` with it. -Note that for the output there are no more paramters (such as host or port), since they are already configured in the associated input - -[source%nowrap,json] ----- -"eventOutputParameters": { - "MyProducer": { - "carrierTechnologyParameters":{ - "carrierTechnology" : "RESTSERVER", - "parameterClassName" : - "org.onap.policy.apex.plugins.event.carrier.restserver.RESTServerCarrierTechnologyParameters" - }, - "eventProtocolParameters":{ - "eventProtocol" : "JSON" - }, - "synchronousMode" : true, - "synchronousPeer" : "MyConsumer", - "synchronousTimeout" : 500 - } -} ----- - - -=== REST Server Stand-alone, multi input - -Any number of input/output pairs for REST servers can be configured. -For instance, we can configure an input `FirstConsumer` with output `FirstProducer` and an input `SecondConsumer` with output `SecondProducer`. -Important is that there is always one pair of input/output. - - -=== REST Server Stand-alone in Servlet - -If APEX is executed as a servlet, e.g. inside Tomcat, the configuration becomes easier since the plugin can now use Tomcat as the REST server. -In this scenario, there are not parameters (port, host, etc.) and the key `standalone` must not be used (or set to false). - -For the Tomcat configuration, we need to add the REST server plugin, e.g. - -[source%nowrap,xml] ----- -<servlet> - ... - <init-param> - ... - <param-value>org.onap.policy.apex.plugins.event.carrier.restserver</param-value> - </init-param> - ... -</servlet> ----- |