| 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 | // Constructor
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| 9 | function Observation ( oArg ) {
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| 10 |
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| 11 | if (oArg['date'])
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| 12 | {
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| 13 | // FIXME: Check transisiton from summer- and winter-time!!
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| 14 | var utc = new Date(oArg.date);
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| 15 | if (isNaN(utc.valueOf()))
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| 16 | {
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| 17 | throw new Error(startDateString+' is not a valid Date String.'+
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| 18 | ' Try something like "2013-01-08 23:05 UTC" .');
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| 19 | }
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| 20 | this.start = utc
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| 21 | }
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| 22 | else
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| 23 | {
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| 24 | throw new Error("Observation object must have a 'date' parameter");
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| 25 | }
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| 26 |
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| 27 | if (oArg['task'])
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| 28 | this.task = oArg.task.toUpperCase()
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| 29 | else
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| 30 | this.task = 'DATA'
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| 31 |
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| 32 | if (oArg['source'])
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| 33 | this.source = oArg.source
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| 34 | else
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| 35 | this.source = undefined
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| 36 |
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| 37 | if (oArg['ra'])
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| 38 | this.ra = oArg.ra
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| 39 | else
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| 40 | this.ra = undefined
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| 41 |
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| 42 | if (oArg['dec'])
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| 43 | this.dec = oArg.dec
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| 44 | else
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| 45 | this.dec = undefined
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| 46 |
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| 47 |
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| 48 |
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| 49 | switch( this.task)
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| 50 | {
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| 51 | case 'DATA':
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| 52 | if (this.source == undefined)
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| 53 | throw new Error(
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| 54 | "Observation must have either 'source' or 'task' " +
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| 55 | "if 'task' == 'data' it must have also have 'source' ");
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| 56 | break;
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| 57 | case 'STARTUP':
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| 58 | if ( this.source != undefined)
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| 59 | {
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| 60 | console.out("warning. Observation with task='startup' also has source defined");
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| 61 | }
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| 62 | break;
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| 63 | case 'SHUTDOWN':
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| 64 | if ( this.source != undefined)
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| 65 | {
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| 66 | console.out("warning. Observation with task='shutdown' also has source defined");
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| 67 | }
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| 68 | break;
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| 69 | case 'RATESCAN':
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| 70 | if ( this.source == undefined && (this.ra == undefined || this.dec == undefined) )
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| 71 | {
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| 72 | throw new Error(
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| 73 | "Observation must have either 'source' or 'ra' & 'dec' " +
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| 74 | "if 'task' == 'ratescan'");
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| 75 | }
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| 76 | break;
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| 77 | default:
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| 78 | throw new Error(" the task of this observation:"+this.task+
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| 79 | "is not implemented. use one of: DATA, STARTUP, SHUTDOWN, RATESCAN.");
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| 80 | }
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| 81 |
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| 82 |
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| 83 | }
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| 84 |
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| 85 | // method toString()
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| 86 | Observation.prototype.toString = function()
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| 87 | {
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| 88 | if (this.source)
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| 89 | return this.task + " " + this.source+" ["+this.start+"]" ;
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| 90 | else
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| 91 | return this.task + " ["+this.start+"]" ;
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| 92 |
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| 93 | }
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