| 1 | 'use strict';
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| 2 |
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| 3 | //
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| 4 | // this file contains just the implementation of the
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| 5 | // Observation class (I know there are no classes in javascript...)
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| 6 | //
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| 7 |
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| 8 | function Observation(obj)
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| 9 | {
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| 10 | if (typeof(obj)!='object')
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| 11 | throw new Error("Observation object can only be constructed using an object.");
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| 12 |
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| 13 | if (!obj.date)
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| 14 | throw new Error("Observation object must have a 'date' parameter");
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| 15 |
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| 16 | // FIXME: Check transisiton from summer- and winter-time!!
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| 17 | var utc = new Date(obj.date);
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| 18 | if (isNaN(utc.valueOf()))
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| 19 | throw new Error(obj.date+' is not a valid Date String.'+
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| 20 | ' Try something like "2013-01-08 23:05 UTC" .');
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| 21 |
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| 22 | this.start = utc;
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| 23 | this.task = obj.task ? obj.task.toUpperCase() : "DATA";
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| 24 | this.source = obj.source;
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| 25 | this.ra = obj.ra;
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| 26 | this.dec = obj.dec;
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| 27 |
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| 28 | switch (this.task)
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| 29 | {
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| 30 | case 'DATA':
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| 31 | if (this.source == undefined)
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| 32 | throw new Error("Observation must have either 'source' or 'task' " +
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| 33 | "if 'task' == 'data' it must have also have 'source' ");
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| 34 | break;
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| 35 |
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| 36 | case 'STARTUP':
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| 37 | if (this.source != undefined)
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| 38 | console.out("warning. Observation with task='startup' also has source defined");
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| 39 | break;
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| 40 |
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| 41 | case 'SHUTDOWN':
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| 42 | if (this.source != undefined)
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| 43 | console.out("warning. Observation with task='shutdown' also has source defined");
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| 44 | break;
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| 45 |
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| 46 | case 'RATESCAN':
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| 47 | if (this.source == undefined && (this.ra == undefined || this.dec == undefined))
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| 48 | throw new Error("Observation must have either 'source' or 'ra' & 'dec' " +
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| 49 | "if 'task' == 'ratescan'");
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| 50 | break;
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| 51 |
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| 52 | default:
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| 53 | throw new Error(" the task of this observation:"+this.task+
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| 54 | "is not implemented. use one of: DATA, STARTUP, SHUTDOWN, RATESCAN.");
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| 55 | }
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| 56 | }
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| 57 |
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| 58 | // method toString()
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| 59 | Observation.prototype.toString = function()
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| 60 | {
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| 61 | if (this.source)
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| 62 | return this.task + " " + this.source+" ["+this.start+"]" ;
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| 63 | else
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| 64 | return this.task + " ["+this.start+"]" ;
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| 65 | }
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