node-red/nodes/core/20-inject.html

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  Copyright 2013 IBM Corp.

  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
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  http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
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  See the License for the specific language governing permissions and
  limitations under the License.
-->

<script type="text/x-red" data-template-name="inject">
    <div class="form-row node-input-payload">
        <label for="node-input-payload"><i class="icon-envelope"></i> Payload</label>
        <input type="text" id="node-input-payload" placeholder="Payload">
    </div>

    <div class="form-row">
        <label for="node-input-topic"><i class="icon-tasks"></i> Topic</label>
        <input type="text" id="node-input-topic" placeholder="Topic">
    </div>

    <div class="form-row">
        <label>&nbsp;</label>
        <input type="checkbox" id="node-input-once" placeholder="once" style="display: inline-block; width: auto; vertical-align: top;">
        <label for="node-input-once" style="width: 70%;">Fire once at start ?</label>
    </div>

    <div class="form-row">
        <label for=""><i class="icon-repeat"></i> Repeat</label>
        <select id="inject-time-type-select"><option value="none">None</option><option value="interval">interval</option><option value="interval-time">interval between times</option><option value="time">at a specific time</option></select>
        <input type="hidden" id="node-input-repeat" placeholder="Payload">
        <input type="hidden" id="node-input-crontab" placeholder="Payload">
    </div>

    <div class="form-row inject-time-row hidden" id="inject-time-row-interval">
        every <input id="inject-time-interval-count" class="inject-time-count" value="1"></input>
              <select style="width: 100px" id="inject-time-interval-units"><option value="s">seconds</option><option value="m">minutes</option><option value="h">hours</option></select><br/>
        on <select disabled id="inject-time-interval-days" class="inject-time-days"></select>
    </div>

    <div class="form-row inject-time-row hidden" id="inject-time-row-interval-time">
        every <input id="inject-time-interval-time-units" class="inject-time-count" value="1"></input> minutes<br/>
        between <select id="inject-time-interval-time-start" class="inject-time-times"></select>
        and <select id="inject-time-interval-time-end" class="inject-time-times"></select><br/>
        on <select id="inject-time-interval-time-days" class="inject-time-days"></select>
    </div>

    <div class="form-row inject-time-row hidden" id="inject-time-row-time">
        at <input id="inject-time-time" value="12:00"></input><br/>
        on <select id="inject-time-time-days" class="inject-time-days"></select>
    </div>

    <div class="form-row">
        <label for="node-input-name"><i class="icon-tag"></i> Name</label>
        <input type="text" id="node-input-name" placeholder="Name">
    </div>

    <div class="form-tips">Tip: Injects Date.now() if no payload set</div>
    <script>
    {

        $("#inject-time-type-select").change(function() {
            var id = $("#inject-time-type-select option:selected").val();
            $(".inject-time-row").hide();
            $("#inject-time-row-"+id).show();
        });

        var days = [
            {v:"*",t:"every day"},
            {v:"1-5",t:"Mondays to Fridays"},
            {v:"6-7",t:"Saturdays and Sundays"},
            {v:"1",t:"Mondays"},
            {v:"2",t:"Tuesdays"},
            {v:"3",t:"Wednesdays"},
            {v:"4",t:"Thursdays"},
            {v:"5",t:"Fridays"},
            {v:"6",t:"Saturdays"},
            {v:"7",t:"Sundays"}
        ];
        $(".inject-time-days").each(function() {
            for (var d in days) {
                $(this).append($("<option></option>").val(days[d].v).text(days[d].t));
            }
        });

        $(".inject-time-times").each(function() {
            for (var i=0;i<24;i++) {
                var l = (i<10?"0":"")+i+":00";
                $(this).append($("<option></option>").val(i).text(l));
            }
        });
        $(".inject-time-count").spinner({
            min:1,
            max:60
        });

        $("#inject-time-interval-units").change(function() {
            var units = $("#inject-time-interval-units option:selected").val();
            $("#inject-time-interval-days").prop("disabled",(units == "s")?"disabled":false);
            $(".inject-time-count").spinner("option","max",(units == "h")?24:60);

        });


        $.widget( "ui.injecttimespinner", $.ui.spinner, {
            options: {
                // seconds
                step: 60 * 1000,
                // hours
                page: 60,
                min:0,
                max:(23*60+59)*60*1000
            },
            _parse: function( value ) {
                if ( typeof value === "string" ) {
                    // already a timestamp
                    if ( Number( value ) == value ) {
                        return Number( value );
                    }
                    var p = value.split(":");
                    return ((p[0]*60)+Number(p[1]))*60*1000;
                }
                return value;
            },
            _format: function( value ) {
                var d = new Date(value);
                var h = d.getHours();
                var m = d.getMinutes();

                return ((h<10)?"0":"")+h+":"+((m<10)?"0":"")+m;
            }
        });


        $("#inject-time-time").injecttimespinner();
    };


    </script>
</script>
<style>
    .inject-time-row {
        padding-left: 110px;
    }
    .inject-time-row select {
        margin: 3px 0;
    }
    .inject-time-days {
        width: 225px;
    }
    .inject-time-times {
        width: 90px;
    }
    .inject-time-row > .ui-spinner {
        height: 28px;
        margin: 3px 0;
        border-color: rgb(204, 204, 204);
    }
    #inject-time-time {
        margin-top: 3px;
        width: 75px;
    }
    .inject-time-count {
        width: 30px !important;
    }
    .

</style>
<script type="text/x-red" data-help-name="inject">
	<p>Pressing the button on the left side of the node allows a message on a topic to be injected into the flow. This is mainly for test purposes.</p>
	<p>If no payload is specified the payload is set to the current time in millisecs since 1970. This allows subsequent functions to perform time based actions.</p>
	<p>The repeat function does what it says on the tin and continuously sends the payload every x seconds.</p>
	<p>The Fire once at start option actually waits 50mS before firing to give other nodes a chance to instantiate properly.</p>
</script>

<script type="text/javascript">
    RED.nodes.registerType('inject',{
        category: 'input',
        color:"#a6bbcf",
        defaults: {
            name: {value:""},
            topic: {value:""},
            payload: {value:""},
            repeat: {value:""},
            crontab: {value:""},
            once: {value:false}
        },
        inputs:0,
        outputs:1,
        icon: "inject.png",
        label: function() {
            return this.name||this.topic||this.payload||"inject";
        },
        labelStyle: function() {
            return this.name?"node_label_italic":"";
        },
        oneditprepare: function() {
            var repeattype = "none";
            if (this.repeat != "") {
                repeattype = "interval";
                $("#inject-time-interval-units option").filter(function() {return $(this).val() == "s";}).attr('selected',true);
                $("#inject-time-interval-count").val(this.repeat);
                $("#inject-time-interval-days").prop("disabled","disabled");
            } else if (this.crontab) {
                var cronparts = this.crontab.split(" ");
                var days = cronparts[4];
                if (!isNaN(cronparts[0]) && !isNaN(cronparts[1])) {
                    repeattype = "time";
                    // Fixed time
                    var time = cronparts[1]+":"+cronparts[0];
                    $("#inject-time-time").val(time);
                    $("#inject-time-type-select option").filter(function() {return $(this).val() == "s";}).attr('selected',true);
                    $("#inject-time-time-days option").filter(function() {return $(this).val() == days;}).attr('selected',true);

                } else if (cronparts[0] == "0") {
                    // interval - hours
                    var hours = cronparts[1].slice(2);
                    repeattype = "interval";
                    $("#inject-time-interval-days").prop("disabled",false);
                    $("#inject-time-interval-days option").filter(function() {return $(this).val() == days;}).attr('selected',true);
                    $("#inject-time-interval-count").val(hours)
                    $("#inject-time-interval-units option").filter(function() {return $(this).val() == "h";}).attr('selected',true);
                } else if (cronparts[1] == "*") {
                    // interval - minutes
                    var minutes = cronparts[0].slice(2);
                    repeattype = "interval";
                    $("#inject-time-interval-days").prop("disabled",false);
                    $("#inject-time-interval-days option").filter(function() {return $(this).val() == days;}).attr('selected',true);
                    $("#inject-time-interval-count").val(minutes)
                    $("#inject-time-interval-units option").filter(function() {return $(this).val() == "m";}).attr('selected',true);
                } else {
                    repeattype = "interval-time";
                    // interval - time period
                    var minutes = cronparts[0].slice(2);
                    $("#inject-time-interval-time-units").val(minutes);
                    $("#inject-time-interval-time-days option").filter(function() {return $(this).val() == days;}).attr('selected',true);
                    var time = cronparts[1];
                    var timeparts = time.split(",");
                    var start;
                    var end;
                    if (timeparts.length == 1) {
                        // 0 or 0-10
                        var hours = timeparts[0].split("-");
                        if (hours.length == 1) {
                            start = hours[0];
                            end = Number(hours[0])+1;
                        } else {
                            start = hours[0];
                            end = (Number(hours[1])+1)%24;
                        }
                    } else {
                        // 23,0 or 17-23,0-10 or 23,0-2 or 17-23,0
                        var startparts = timeparts[0].split("-");
                        start = startparts[0];

                        var endparts = timeparts[1].split("-");
                        if (endparts.length == 1) {
                            end = Number(endparts[0])+1;
                        } else {
                            end = Number(endparts[1])+1;
                        }
                    }
                    $("#inject-time-interval-time-start option").filter(function() {return $(this).val() == start;}).attr('selected',true);
                    $("#inject-time-interval-time-end option").filter(function() {return $(this).val() == end;}).attr('selected',true);

                }
            } else {
                $("#inject-time-type-select option").filter(function() {return $(this).val() == "none";}).attr('selected',true);
            }

            $(".inject-time-row").hide();
            $("#inject-time-type-select option").filter(function() {return $(this).val() == repeattype;}).attr('selected',true);
            $("#inject-time-row-"+repeattype).show();


        },
        oneditsave: function() {
            var repeat = "";
            var crontab = "";
            var type = $("#inject-time-type-select option:selected").val();
            if (type == "none") {
                // nothing
            } else if (type == "interval") {
                var count = $("#inject-time-interval-count").val();
                var units = $("#inject-time-interval-units option:selected").val();
                var days = $("#inject-time-interval-days option:selected").val();
                if (units == "s") {
                    repeat = count;
                } else {
                    if (units == "m") {
                        crontab = "*/"+count+" * * * "+days;
                    } else if (units == "h") {
                        crontab = "0 */"+count+" * * "+days;
                    }
                }
            } else if (type == "interval-time") {
                var count = $("#inject-time-interval-time-units").val();
                var startTime = Number($("#inject-time-interval-time-start option:selected").val());
                var endTime = Number($("#inject-time-interval-time-end option:selected").val());
                var days = $("#inject-time-interval-time-days option:selected").val();
                var timerange = "";
                if (startTime == endTime) {
                    //TODO: invalid
                    repeat = 0;
                    crontab = "";
                } else if (endTime == 0) {
                    timerange = startTime+"-23";
                } else if (startTime+1 < endTime) {
                    timerange = startTime+"-"+(endTime-1);
                } else if (startTime+1 == endTime) {
                    timerange = startTime;
                } else {
                    var startpart = "";
                    var endpart = "";
                    if (startTime == 23) {
                        startpart = "23";
                    } else {
                        startpart = startTime+"-23";
                    }
                    if (endTime == 1) {
                        endpart = "0";
                    } else {
                        endpart = "0-"+(endTime-1);
                    }
                    timerange = startpart+","+endpart;
                }
                repeat = 0;
                crontab = "*/"+count+" "+timerange+" * * "+days;
            } else if (type == "time") {
                var time = $("#inject-time-time").val();
                var days = $("#inject-time-time-days option:selected").val();
                var parts = time.split(":");
                repeat = 0;
                crontab = parts[1]+" "+parts[0]+" * * "+days;
            }

            $("#node-input-repeat").val(repeat);
            $("#node-input-crontab").val(crontab);

        },
        button: {
            onclick: function() {
                var label = this.name||this.payload;
                d3.xhr("inject/"+this.id).post(function(err,resp) {
                        if (err) {
                            if (err.status == 404) {
                                RED.notify("<strong>Error</strong>: inject node not deployed","error");
                            } else if (err.status == 500) {
                                RED.notify("<strong>Error</strong>: inject failed, see log for details.","error");
                            } else if (err.status == 0) {
                                RED.notify("<strong>Error</strong>: no response from server","error");
                            } else {
                                RED.notify("<strong>Error</strong>: unexpected error: ("+err.status+")"+err.response,"error");
                            }
                        } else if (resp.status == 200) {
                            RED.notify("Successfully injected: "+label,"success");
                        } else {
                            RED.notify("<strong>Error</strong>: unexpected response: ("+resp.status+") "+resp.response,"error");
                        }
                });
            }
        }
    });

</script>