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