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/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
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* full list of contributors). Published under the 2-clause BSD license.
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* See license.txt in the OpenLayers distribution or repository for the
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* full text of the license. */
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/**
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* @requires OpenLayers/Format/WMSDescribeLayer.js
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* @requires OpenLayers/Format/OGCExceptionReport.js
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*/
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/**
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* Class: OpenLayers.Format.WMSDescribeLayer.v1_1_1
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* Read SLD WMS DescribeLayer response for WMS 1.1.X
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* WMS 1.1.X is tightly coupled to SLD 1.0.0
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*
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* Example DescribeLayer request:
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* http://demo.opengeo.org/geoserver/wms?request=DescribeLayer&version=1.1.1&layers=topp:states
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*
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* Inherits from:
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* - <OpenLayers.Format.WMSDescribeLayer>
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*/
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OpenLayers.Format.WMSDescribeLayer.v1_1_1 = OpenLayers.Class(
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OpenLayers.Format.WMSDescribeLayer, {
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/**
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* Constructor: OpenLayers.Format.WMSDescribeLayer
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* Create a new parser for WMS DescribeLayer responses.
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*
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* Parameters:
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* options - {Object} An optional object whose properties will be set on
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* this instance.
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*/
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initialize: function(options) {
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OpenLayers.Format.WMSDescribeLayer.prototype.initialize.apply(this,
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[options]);
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},
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/**
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* APIMethod: read
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* Read DescribeLayer data from a string, and return the response.
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* The OGC defines 2 formats which are allowed for output,
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* so we need to parse these 2 types for version 1.1.X
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*
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* Parameters:
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* data - {String} or {DOMElement} data to read/parse.
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*
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* Returns:
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* {Object} Object with a layerDescriptions property, which holds an Array
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* of {<LayerDescription>} objects which have:
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* - {String} owsType: WFS/WCS
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* - {String} owsURL: the online resource
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* - {String} typeName: the name of the typename on the owsType service
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* - {String} layerName: the name of the WMS layer we did a lookup for
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*/
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read: function(data) {
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if(typeof data == "string") {
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data = OpenLayers.Format.XML.prototype.read.apply(this, [data]);
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}
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var root = data.documentElement;
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var children = root.childNodes;
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var describelayer = {layerDescriptions: []};
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var childNode, nodeName;
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for(var i=0; i<children.length; ++i) {
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childNode = children[i];
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nodeName = childNode.nodeName;
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if (nodeName == 'LayerDescription') {
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var layerName = childNode.getAttribute('name');
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var owsType = '';
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var owsURL = '';
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var typeName = '';
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// check for owsType and owsURL attributes
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if (childNode.getAttribute('owsType')) {
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owsType = childNode.getAttribute('owsType');
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owsURL = childNode.getAttribute('owsURL');
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} else {
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// look for wfs or wcs attribute
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if (childNode.getAttribute('wfs') != '') {
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owsType = 'WFS';
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owsURL = childNode.getAttribute('wfs');
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} else if (childNode.getAttribute('wcs') != '') {
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owsType = 'WCS';
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owsURL = childNode.getAttribute('wcs');
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}
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}
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// look for Query child
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var query = childNode.getElementsByTagName('Query');
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if(query.length > 0) {
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typeName = query[0].getAttribute('typeName');
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if (!typeName) {
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// because of Ionic bug
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typeName = query[0].getAttribute('typename');
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}
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}
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var layerDescription = {
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layerName: layerName, owsType: owsType,
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owsURL: owsURL, typeName: typeName
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};
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describelayer.layerDescriptions.push(layerDescription);
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//TODO do this in deprecated.js instead:
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// array style index for backwards compatibility
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describelayer.length = describelayer.layerDescriptions.length;
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describelayer[describelayer.length - 1] = layerDescription;
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} else if (nodeName == 'ServiceException') {
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// an exception must have occurred, so parse it
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var parser = new OpenLayers.Format.OGCExceptionReport();
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return {
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error: parser.read(data)
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};
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}
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}
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return describelayer;
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},
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CLASS_NAME: "OpenLayers.Format.WMSDescribeLayer.v1_1_1"
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});
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// Version alias - workaround for http://trac.osgeo.org/mapserver/ticket/2257
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OpenLayers.Format.WMSDescribeLayer.v1_1_0 =
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OpenLayers.Format.WMSDescribeLayer.v1_1_1;
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