[76] | 1 | /* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for |
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| 2 | * full list of contributors). Published under the Clear BSD license. |
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| 3 | * See http://svn.openlayers.org/trunk/openlayers/license.txt for the |
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| 4 | * full text of the license. */ |
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| 5 | |
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| 6 | /** |
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| 7 | * @requires OpenLayers/Format/XML.js |
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| 8 | * @requires OpenLayers/Format/GML.js |
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| 9 | * @requires OpenLayers/Format/GML/v3.js |
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| 10 | */ |
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| 11 | |
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| 12 | /** |
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| 13 | * Class: OpenLayers.Format.SOSGetObservation |
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| 14 | * Read and write SOS GetObersation (to get the actual values from a sensor) |
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| 15 | * version 1.0.0 |
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| 16 | * |
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| 17 | * Inherits from: |
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| 18 | * - <OpenLayers.Format.XML> |
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| 19 | */ |
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| 20 | OpenLayers.Format.SOSGetObservation = OpenLayers.Class(OpenLayers.Format.XML, { |
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| 21 | |
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| 22 | /** |
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| 23 | * Property: namespaces |
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| 24 | * {Object} Mapping of namespace aliases to namespace URIs. |
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| 25 | */ |
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| 26 | namespaces: { |
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| 27 | ows: "http://www.opengis.net/ows", |
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| 28 | gml: "http://www.opengis.net/gml", |
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| 29 | sos: "http://www.opengis.net/sos/1.0", |
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| 30 | ogc: "http://www.opengis.net/ogc", |
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| 31 | om: "http://www.opengis.net/om/1.0", |
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| 32 | xlink: "http://www.w3.org/1999/xlink", |
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| 33 | xsi: "http://www.w3.org/2001/XMLSchema-instance" |
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| 34 | }, |
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| 35 | |
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| 36 | /** |
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| 37 | * Property: regExes |
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| 38 | * Compiled regular expressions for manipulating strings. |
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| 39 | */ |
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| 40 | regExes: { |
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| 41 | trimSpace: (/^\s*|\s*$/g), |
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| 42 | removeSpace: (/\s*/g), |
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| 43 | splitSpace: (/\s+/), |
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| 44 | trimComma: (/\s*,\s*/g) |
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| 45 | }, |
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| 46 | |
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| 47 | /** |
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| 48 | * Constant: VERSION |
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| 49 | * {String} 1.0.0 |
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| 50 | */ |
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| 51 | VERSION: "1.0.0", |
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| 52 | |
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| 53 | /** |
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| 54 | * Property: schemaLocation |
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| 55 | * {String} Schema location |
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| 56 | */ |
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| 57 | schemaLocation: "http://www.opengis.net/sos/1.0 http://schemas.opengis.net/sos/1.0.0/sosGetObservation.xsd", |
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| 58 | |
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| 59 | /** |
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| 60 | * Property: defaultPrefix |
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| 61 | */ |
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| 62 | defaultPrefix: "sos", |
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| 63 | |
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| 64 | /** |
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| 65 | * Constructor: OpenLayers.Format.SOSGetObservation |
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| 66 | * |
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| 67 | * Parameters: |
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| 68 | * options - {Object} An optional object whose properties will be set on |
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| 69 | * this instance. |
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| 70 | */ |
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| 71 | initialize: function(options) { |
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| 72 | OpenLayers.Format.XML.prototype.initialize.apply(this, [options]); |
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| 73 | }, |
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| 74 | |
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| 75 | /** |
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| 76 | * Method: read |
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| 77 | * |
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| 78 | * Parameters: |
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| 79 | * data - {String} or {DOMElement} data to read/parse. |
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| 80 | * |
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| 81 | * Returns: |
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| 82 | * {Object} An object containing the measurements |
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| 83 | */ |
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| 84 | read: function(data) { |
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| 85 | if(typeof data == "string") { |
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| 86 | data = OpenLayers.Format.XML.prototype.read.apply(this, [data]); |
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| 87 | } |
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| 88 | if(data && data.nodeType == 9) { |
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| 89 | data = data.documentElement; |
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| 90 | } |
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| 91 | var info = {measurements: []}; |
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| 92 | this.readNode(data, info); |
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| 93 | return info; |
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| 94 | }, |
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| 95 | |
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| 96 | /** |
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| 97 | * Method: write |
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| 98 | * |
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| 99 | * Parameters: |
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| 100 | * options - {Object} Optional object. |
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| 101 | * |
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| 102 | * Returns: |
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| 103 | * {String} An SOS GetObservation request XML string. |
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| 104 | */ |
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| 105 | write: function(options) { |
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| 106 | var node = this.writeNode("sos:GetObservation", options); |
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| 107 | node.setAttribute("xmlns:om", this.namespaces.om); |
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| 108 | this.setAttributeNS( |
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| 109 | node, this.namespaces.xsi, |
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| 110 | "xsi:schemaLocation", this.schemaLocation |
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| 111 | ); |
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| 112 | return OpenLayers.Format.XML.prototype.write.apply(this, [node]); |
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| 113 | }, |
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| 114 | |
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| 115 | /** |
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| 116 | * Property: readers |
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| 117 | * Contains public functions, grouped by namespace prefix, that will |
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| 118 | * be applied when a namespaced node is found matching the function |
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| 119 | * name. The function will be applied in the scope of this parser |
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| 120 | * with two arguments: the node being read and a context object passed |
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| 121 | * from the parent. |
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| 122 | */ |
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| 123 | readers: { |
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| 124 | "om": { |
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| 125 | "ObservationCollection": function(node, obj) { |
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| 126 | obj.id = this.getAttributeNS(node, this.namespaces.gml, "id"); |
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| 127 | this.readChildNodes(node, obj); |
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| 128 | }, |
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| 129 | "member": function(node, observationCollection) { |
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| 130 | this.readChildNodes(node, observationCollection); |
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| 131 | }, |
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| 132 | "Measurement": function(node, observationCollection) { |
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| 133 | var measurement = {}; |
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| 134 | observationCollection.measurements.push(measurement); |
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| 135 | this.readChildNodes(node, measurement); |
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| 136 | }, |
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| 137 | "samplingTime": function(node, measurement) { |
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| 138 | var samplingTime = {}; |
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| 139 | measurement.samplingTime = samplingTime; |
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| 140 | this.readChildNodes(node, samplingTime); |
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| 141 | }, |
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| 142 | "observedProperty": function(node, measurement) { |
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| 143 | measurement.observedProperty = |
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| 144 | this.getAttributeNS(node, this.namespaces.xlink, "href"); |
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| 145 | this.readChildNodes(node, measurement); |
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| 146 | }, |
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| 147 | "procedure": function(node, measurement) { |
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| 148 | measurement.procedure = |
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| 149 | this.getAttributeNS(node, this.namespaces.xlink, "href"); |
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| 150 | this.readChildNodes(node, measurement); |
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| 151 | }, |
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| 152 | "result": function(node, measurement) { |
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| 153 | var result = {}; |
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| 154 | measurement.result = result; |
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| 155 | if (this.getChildValue(node) !== '') { |
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| 156 | result.value = this.getChildValue(node); |
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| 157 | result.uom = node.getAttribute("uom"); |
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| 158 | } else { |
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| 159 | this.readChildNodes(node, result); |
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| 160 | } |
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| 161 | } |
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| 162 | }, |
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| 163 | "gml": OpenLayers.Util.applyDefaults({ |
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| 164 | "TimeInstant": function(node, samplingTime) { |
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| 165 | var timeInstant = {}; |
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| 166 | samplingTime.timeInstant = timeInstant; |
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| 167 | this.readChildNodes(node, timeInstant); |
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| 168 | }, |
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| 169 | "timePosition": function(node, timeInstant) { |
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| 170 | timeInstant.timePosition = this.getChildValue(node); |
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| 171 | } |
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| 172 | }, OpenLayers.Format.GML.v3.prototype.readers.gml) |
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| 173 | }, |
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| 174 | |
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| 175 | /** |
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| 176 | * Property: writers |
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| 177 | * As a compliment to the readers property, this structure contains public |
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| 178 | * writing functions grouped by namespace alias and named like the |
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| 179 | * node names they produce. |
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| 180 | */ |
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| 181 | writers: { |
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| 182 | "sos": { |
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| 183 | "GetObservation": function(options) { |
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| 184 | var node = this.createElementNSPlus("GetObservation", { |
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| 185 | attributes: { |
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| 186 | version: this.VERSION, |
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| 187 | service: 'SOS' |
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| 188 | } |
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| 189 | }); |
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| 190 | this.writeNode("offering", options, node); |
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| 191 | this.writeNode("eventTime", options, node); |
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| 192 | this.writeNode("procedure", options, node); |
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| 193 | this.writeNode("observedProperty", options, node); |
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| 194 | this.writeNode("responseFormat", options, node); |
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| 195 | this.writeNode("resultModel", options, node); |
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| 196 | this.writeNode("responseMode", options, node); |
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| 197 | return node; |
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| 198 | }, |
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| 199 | "responseFormat": function(options) { |
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| 200 | return this.createElementNSPlus("responseFormat", |
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| 201 | {value: options.responseFormat}); |
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| 202 | }, |
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| 203 | "procedure": function(options) { |
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| 204 | return this.createElementNSPlus("procedure", |
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| 205 | {value: options.procedure}); |
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| 206 | }, |
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| 207 | "offering": function(options) { |
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| 208 | return this.createElementNSPlus("offering", {value: |
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| 209 | options.offering}); |
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| 210 | }, |
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| 211 | "observedProperty": function(options) { |
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| 212 | return this.createElementNSPlus("observedProperty", |
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| 213 | {value: options.observedProperty}); |
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| 214 | }, |
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| 215 | "eventTime": function(options) { |
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| 216 | var node = this.createElementNSPlus("eventTime"); |
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| 217 | if (options.eventTime === 'latest') { |
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| 218 | this.writeNode("ogc:TM_Equals", options, node); |
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| 219 | } |
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| 220 | return node; |
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| 221 | }, |
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| 222 | "resultModel": function(options) { |
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| 223 | return this.createElementNSPlus("resultModel", {value: |
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| 224 | options.resultModel}); |
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| 225 | }, |
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| 226 | "responseMode": function(options) { |
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| 227 | return this.createElementNSPlus("responseMode", {value: |
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| 228 | options.responseMode}); |
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| 229 | } |
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| 230 | }, |
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| 231 | "ogc": { |
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| 232 | "TM_Equals": function(options) { |
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| 233 | var node = this.createElementNSPlus("ogc:TM_Equals"); |
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| 234 | this.writeNode("ogc:PropertyName", {property: |
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| 235 | "urn:ogc:data:time:iso8601"}, node); |
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| 236 | if (options.eventTime === 'latest') { |
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| 237 | this.writeNode("gml:TimeInstant", {value: 'latest'}, node); |
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| 238 | } |
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| 239 | return node; |
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| 240 | }, |
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| 241 | "PropertyName": function(options) { |
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| 242 | return this.createElementNSPlus("ogc:PropertyName", |
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| 243 | {value: options.property}); |
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| 244 | } |
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| 245 | }, |
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| 246 | "gml": { |
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| 247 | "TimeInstant": function(options) { |
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| 248 | var node = this.createElementNSPlus("gml:TimeInstant"); |
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| 249 | this.writeNode("gml:timePosition", options, node); |
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| 250 | return node; |
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| 251 | }, |
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| 252 | "timePosition": function(options) { |
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| 253 | var node = this.createElementNSPlus("gml:timePosition", |
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| 254 | {value: options.value}); |
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| 255 | return node; |
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| 256 | } |
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| 257 | } |
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| 258 | }, |
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| 259 | |
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| 260 | CLASS_NAME: "OpenLayers.Format.SOSGetObservation" |
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| 261 | |
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| 262 | }); |
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