| 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 | var ret = [];
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| 17 |
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| 18 | // FIXME: Check transisiton from summer- and winter-time!!
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| 19 | var utc = obj.date.toString().toUpperCase()=="NOW" ? new Date() : new Date(obj.date);
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| 20 | if (isNaN(utc.valueOf()))
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| 21 | throw new Error('"'+obj.date+'" not a valid Date... try something like "2013-01-08 23:05 UTC".');
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| 22 | ret.start = utc;
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| 23 | ret.id = obj.id;
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| 24 |
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| 25 | // If the given data is not an array, make it the first entry of an array
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| 26 | // so that we can simply loop over all entries
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| 27 | if (obj.measurements.length===undefined)
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| 28 | {
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| 29 | var cpy = obj.measurements;
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| 30 | obj.measurements = [];
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| 31 | obj.measurements[0] = cpy;
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| 32 | }
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| 33 |
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| 34 | for (var i=0; i<obj.measurements.length; i++)
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| 35 | {
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| 36 | var obs = obj.measurements[i];
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| 37 |
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| 38 | ret[i] = { };
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| 39 | ret[i].task = obs.task ? obs.task.toUpperCase() : "DATA";
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| 40 | ret[i].source = obs.source;
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| 41 | ret[i].ra = parseFloat(obs.ra);
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| 42 | ret[i].dec = parseFloat(obs.dec);
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| 43 | ret[i].zd = parseFloat(obs.zd);
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| 44 | ret[i].az = parseFloat(obs.az);
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| 45 | ret[i].lidclosed = obs.lidclosed;
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| 46 | ret[i].rstype = obs.rstype ? obs.rstype : "default";
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| 47 | ret[i].sub = i;
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| 48 | ret[i].start = utc;
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| 49 |
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| 50 | ret[i].toString = function()
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| 51 | {
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| 52 | var rc = this.task;
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| 53 | rc += "["+this.sub+"]";
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| 54 | if (this.source)
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| 55 | rc += ": " + this.source;
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| 56 | //rc += " ["+this.start.toUTCString()+"]";
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| 57 | return rc;
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| 58 | }
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| 59 |
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| 60 | switch (ret[i].task)
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| 61 | {
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| 62 | case 'DATA':
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| 63 | if (i!=obj.measurements.length-1)
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| 64 | throw new Error("DATA [n="+i+", "+utc.toUTCString()+"] must be the last in the list of measurements [cnt="+obj.measurements.length+"]");
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| 65 | if (ret[i].source == undefined)
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| 66 | throw new Error("Observation must have either 'source' or 'task' " +
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| 67 | "if 'task' == 'data' it must have also have 'source' ");
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| 68 | if (ret[i].lidclosed == true)
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| 69 | throw new Error("Observation must not have 'lidclosed'== true " +
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| 70 | "if 'task' == 'data' ");
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| 71 | break;
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| 72 |
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| 73 | case 'STARTUP':
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| 74 | if (ret[i].source != undefined)
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| 75 | console.out("warning. Observation with task='startup' also has source defined");
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| 76 | break;
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| 77 |
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| 78 | case 'SHUTDOWN':
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| 79 | if (ret[i].source != undefined)
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| 80 | console.out("warning. Observation with task='shutdown' also has source defined");
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| 81 | break;
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| 82 |
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| 83 | case 'RATESCAN':
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| 84 | if (ret[i].source == undefined && (isNaN(ret[i].ra) || isNaN(ret[i].dec)))
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| 85 | throw new Error("Observation must have either 'source' or 'ra' & 'dec' " +
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| 86 | "if 'task' == 'ratescan'");
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| 87 | if (ret[i].lidclosed == true)
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| 88 | throw new Error("Observation must not have 'lidclosed'== true " +
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| 89 | "if 'task' == 'ratescan' ");
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| 90 | break;
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| 91 |
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| 92 | case 'RATESCAN2':
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| 93 | if ((ret[i].lidclosed != true) && ret[i].source == undefined && (isNaN(ret[i].ra) || isNaN(ret[i].dec)))
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| 94 | throw new Error("Observation must have either 'source' or 'ra' & 'dec' " +
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| 95 | "if 'task' == 'ratescan2' and lidclosed==false or not given");
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| 96 | if (ret[i].lidclosed == true && (isNaN(ret[i].az) || isNaN(ret[i].az)))
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| 97 | throw new Error("Observation must have 'zd' & 'az' " +
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| 98 | "if 'task' == 'ratescan2' and option 'lidclosed'=='true'");
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| 99 | break;
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| 100 |
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| 101 | case 'SINGLEPE':
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| 102 | case 'OVTEST':
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| 103 | case 'DRSCALIB':
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| 104 | case 'IDLE':
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| 105 | case 'SLEEP':
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| 106 | break;
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| 107 |
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| 108 | default:
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| 109 | throw new Error("The observation type "+ret[i].task+" is unknown.");
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| 110 | }
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| 111 | }
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| 112 |
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| 113 | return ret;
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| 114 | }
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