node-red-contrib-snap4city-user/iotdirectory-get-device.html

Nodes for Snap4city project, targeted to standard user (no developer)

<!--/* NODE-RED-CONTRIB-SNAP4CITY-USER
   Copyright (C) 2018 DISIT Lab http://www.disit.org - University of Florence

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU Affero General Public License as
   published by the Free Software Foundation, either version 3 of the
   License, or (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Affero General Public License for more details.

   You should have received a copy of the GNU Affero General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>. */-->
<script type="text/javascript">
    RED.nodes.registerType('iotdirectory-get-device', {
        category: 'S4CIoT',
        color: '#a6bbcf',
        defaults: {
            name: {
                value: ""
            },
            authentication: {
                type: "snap4city-authentication",
                required: false
            },
            selectedCB: {
                value: ""
            },
            cbs: {
                value: ""
            },
            devicename: {
                value: ""
            },
            service: {
                value: ""
            },
            servicePath: {
                value: ""
            },
        },
        outputs: 1,
        inputs: 1,
        icon: "white-globe.png",
        label: function () {
            return this.name || "iotdirectory-get-device";
        },
        oneditprepare: function () {
            $("#node-input-currentNodeId").val(this.id);
            var accessToken = "";
            var cbList = "";

            $.ajax({
                url: "retrieveAccessTokenAuthentication",
                type: "POST",
                async: false,
                dataType: "json",
                data: {
                    "authenticationNodeId": $("#node-input-authentication").val(),
                    "nodeId": $("#node-input-currentNodeId").val()
                },
                success: function (_data) {
                    if (_data.accessToken == "") {
                        $("#selectCBContainer").hide();
                        $('#tipAuthenticationWrong').show();
                        $('#tipAuthentication').hide();
                    } else {
                        accessToken = _data.accessToken;
                    };
                }
            });

            refreshCBSelection(accessToken, cbList);



        },
        oneditsave: function () {
            $("#node-input-selectedCB").val($("#node-input-cbs").val());
        }
    });

    var refreshCBSelection = function (accessToken, cbList) {
        $("#node-input-cbs").empty();
        if (cbList != "") {
            createCBSelection(cbList);
        } else if (accessToken != "") {
            console.log("scenario edge... retrieving ");
            $.ajax({
                url: "iotDirectoryUrl",
                type: "GET",
                async: false,
                success: function (_data) {
                    var domain = (RED.nodes.node($("#node-input-authentication").val()) != null ? RED.nodes.node($("#node-input-authentication").val()).domain : "");
                    if (domain != "") {
                        _data.iotDirectoryUrl = domain + "/iot-directory/";
                    }
                    $.ajax({
                        url: _data.iotDirectoryUrl +
                            "/api/contextbroker.php?action=get_all_contextbroker_simple&nodered=yes&token=" +
                            accessToken,
                        type: "GET",
                        async: true,
                        dataType: "json",
                        success: function (_data) {
                            console.log("successo");
                            createCBSelection(_data);
                        },
                        error: function (err) {
                            console.log("errore");
                            console.log(err);
                        }
                    });
                }
            });
        }

    }

    var createCBSelection = function (currentcbList) {
        console.log(currentcbList);
        currentcbList = currentcbList.data;
        if (currentcbList.length != 0) {
            $("#node-input-cbs").empty();
            var currentValue = $("#node-input-selectedCB").val();
            for (var i = 0; i < currentcbList.length; i++) {
                $("<option value='" + currentcbList[i].name + "' data-protocol='" + currentcbList[i].protocol + "'>" + currentcbList[i].name + "</option>").appendTo($("#node-input-cbs"));
            }
            $("#node-input-cbs").val(currentValue);
        }

        $("#node-input-cbs").change(function () {
            if ($("#node-input-cbs").val() != null) {
                var selected = $(this).find('option:selected');
                var protocol = selected.data('protocol');
                if (protocol == "ngsi w/MultiService") {
                    $("#node-input-service").prop("disabled", false);
                    $("#node-input-servicepath").prop("disabled", false);
                }
                else {
                    $("#node-input-service").prop("disabled", true);
                    $("#node-input-servicepath").prop("disabled", true);
                }
            }
        });

        $("#node-input-cbs").val(currentValue).trigger('change');

    }
</script>

<script type="text/x-red" data-template-name="iotdirectory-get-device">

    <input type="hidden" id="node-input-selectedCB">
    <input type="hidden" id="node-input-currentNodeId">

    <div class="form-row" id="rowAuthentication">
        <label for="node-input-authentication">Authentication</label>
        <input type="text" id="node-input-authentication">
    </div>
    <!--div class="form-row">
        <label for="node-input-cbname">Context Broker name</label>
        <input type="text" autocomplete="off" id="node-input-cbname" placeholder="Context Broker name">
    </div-->
	<div class="form-row" id="selectCBContainer">
        <label for="node-input-cbs">Context Broker</label>
        <select id="node-input-cbs" style="width: 55%;">
        </select>
    </div>
    <div class="form-row">
        <label for="node-input-devicenamee">Device Name</label>
        <input type="text" autocomplete="off" id="node-input-devicename" placeholder="Device Name">
    </div>
	<div class="form-row">
        <label for="node-input-service">Service</label>
        <input type="text" autocomplete="off" id="node-input-service" placeholder="Service" disabled>
    </div>
	<div class="form-row">
        <label for="node-input-servicepath">Service Path</label>
        <input type="text" autocomplete="off" id="node-input-servicepath" placeholder="Service Path" disabled>
    </div>
    <div class="form-tips"  id="tipAuthentication" style="max-width: none">
        You must have an account with Snap4city to use this node. You can register for one
        <a href="https://www.snap4city.org"
            target="_blank">here</a>.
    </div>
</script>

<script type="text/x-red" data-help-name="iotdirectory-get-device">
    <p>It allows to retrieve the device information from the iotdirectory</p>

    <h3>Inputs</h3>
    A JSON with these parameters:

    <dl class="message-properties">
        <dt>cbname
            <span class="property-type">string</span>
        </dt>
        <dd>The name of the context broker that hold the device you want to retrieve. It can be passed in <code>msg.payload.cbname</code></dd>
        <dt>devicename
            <span class="property-type">string</span>
        </dt>
        <dd>The name of the device you want to retrieve. It can be passed in <code>msg.payload.devicename</code></dd>
        <dt>service
            <span class="property-type">string</span>
        </dt>
        <dd>The name of the service the device is stored, in case of Orion w/MultiService (optional). It can be passed in <code>msg.payload.service</code></dd>		
		<dt>servicepath
            <span class="property-type">string</span>
        </dt>
        <dd>The name of the Service Path the device is stored, in case of Orion w/MultiService (optional). It can be passed in <code>msg.payload.servicepath</code></dd>		
    </dl>

    <h3>Outputs</h3>
    <dl class="message-properties">
        <dd> Returns an array containing the information of the device</dd>
    </dl>

    <h3>Details</h3>
    <p>The node can receive a JSON with the parameters described in the Inputs section and with them generate the output JSON.
        If the values are not present in the input JSON, these are read by those in the configuration. If they are not present
        in either part, an error is generated for the necessary parameters.</p>

</script>