84a8d8d1f6
The WMSDescribeLayer format currently differs from other formats that inhreit from VersionedOGC by having an array instead of an object as return type. This especially bad since the VersionedOGC superclass sets a version property on the array. With this change, the WMSDescribeLayer format will also be compatible with GeoServer's new JSON response type for DescribeLayer - see http://sourceforge.net/mailarchive/message.php?msg_id=29912776. Another change included here is the removal of the WMSDescribeLayer format's getVersion hack, which was replaced by a generic fallback to less generic parsers, e.g. from a v1_1_1 parser to a v1_1 parser if v1_1_1 is not implemented.
118 lines
4.5 KiB
JavaScript
118 lines
4.5 KiB
JavaScript
/* Copyright (c) 2006-2012 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
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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 = 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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// deprecated 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"
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});
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