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This commit is contained in:
Christopher Eykamp
2012-12-27 15:38:01 +01:00
parent 0e9691c628
commit 16981a8afa
4 changed files with 0 additions and 600 deletions
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86
lib/OpenLayers/Protocol/WCS.js
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/* Copyright (c) 2006-2012 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/Protocol.js
*/
/**
* Class: OpenLayers.Protocol.WCS
* Used to create a versioned WCS protocol. Default version is 1.0.0.
*
* Returns:
* {<OpenLayers.Protocol>} A WCS protocol of the given version.
*
* Example:
* (code)
* var protocol = new OpenLayers.Protocol.WCS({
* version: "1.1.0",
* url: "http://demo.opengeo.org/geoserver/wcs",
* featureType: "tasmania_roads",
* featureNS: "http://www.openplans.org/topp",
* geometryName: "the_geom"
* });
* (end)
*
* See the protocols for specific WCS versions for more detail.
*/
OpenLayers.Protocol.WCS = function(options) {
options = OpenLayers.Util.applyDefaults(
options, OpenLayers.Protocol.WCS.DEFAULTS
);
var cls = OpenLayers.Protocol.WCS["v"+options.version.replace(/\./g, "_")];
if(!cls) {
throw "Unsupported WCS version: " + options.version;
}
return new cls(options);
};
/**
* Function: fromWMSLayer
* Convenience function to create a WCS protocol from a WMS layer. This makes
* the assumption that a WCS requests can be issued at the same URL as
* WMS requests and that a WCS featureType exists with the same name as the
* WMS layer.
*
* This function is designed to auto-configure <url>, <featureType>,
* <featurePrefix> and <srsName> for WCS <version> 1.1.0. Note that
* srsName matching with the WMS layer will not work with WCS 1.0.0.
*
* Parameters:
* layer - {<OpenLayers.Layer.WMS>} WMS layer that has a matching WCS
* FeatureType at the same server url with the same typename.
* options - {Object} Default properties to be set on the protocol.
*
* Returns:
* {<OpenLayers.Protocol.WCS>}
*/
OpenLayers.Protocol.WCS.fromWMSLayer = function(layer, options) {
var typeName, featurePrefix;
var param = layer.params["LAYERS"];
var parts = (OpenLayers.Util.isArray(param) ? param[0] : param).split(":");
if(parts.length > 1) {
featurePrefix = parts[0];
}
typeName = parts.pop();
var protocolOptions = {
url: layer.url,
featureType: typeName,
featurePrefix: featurePrefix,
srsName: layer.projection && layer.projection.getCode() ||
layer.map && layer.map.getProjectionObject().getCode(),
version: "1.1.0"
};
return new OpenLayers.Protocol.WCS(OpenLayers.Util.applyDefaults(
options, protocolOptions
));
};
/**
* Constant: OpenLayers.Protocol.WCS.DEFAULTS
*/
OpenLayers.Protocol.WCS.DEFAULTS = {
"version": "1.0.0"
};

434
lib/OpenLayers/Protocol/WCS/v1.js
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/* Copyright (c) 2006-2012 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/Protocol/WCS.js
*/
/**
* Class: OpenLayers.Protocol.WCS.v1
* Abstract class for for v1.0.0 and v1.1.0 protocol.
*
* Inherits from:
* - <OpenLayers.Protocol>
*/
OpenLayers.Protocol.WCS.v1 = OpenLayers.Class(OpenLayers.Protocol, {
/**
* Property: version
* {String} WCS version number.
*/
version: null,
/**
* Property: srsName
* {String} Name of spatial reference system. Default is "EPSG:4326".
*/
srsName: "EPSG:4326",
/**
* Property: featureType
* {String} Local feature typeName.
*/
featureType: null,
/**
* Property: featureNS
* {String} Feature namespace.
*/
featureNS: null,
/**
* Property: geometryName
* {String} Name of the geometry attribute for features. Default is
* "the_geom" for WCS <version> 1.0, and null for higher versions.
*/
geometryName: "the_geom",
/**
* Property: schema
* {String} Optional schema location that will be included in the
* schemaLocation attribute value. Note that the feature type schema
* is required for a strict XML validator (on transactions with an
* insert for example), but is *not* required by the WCS specification
* (since the server is supposed to know about feature type schemas).
*/
schema: null,
/**
* Property: featurePrefix
* {String} Namespace alias for feature type. Default is "feature".
*/
featurePrefix: "feature",
/**
* Property: formatOptions
* {Object} Optional options for the format. If a format is not provided,
* this property can be used to extend the default format options.
*/
formatOptions: null,
/**
* Property: readFormat
*/
readFormat: null,
/**
* Property: readOptions
* {Object} Optional object to pass to format's read.
*/
readOptions: null,
/**
* Constructor: OpenLayers.Protocol.WCS
* A class for giving layers WCS protocol.
*
* Parameters:
* options - {Object} Optional object whose properties will be set on the
* instance.
*
* Valid options properties:
* url - {String} URL to send requests to (required).
* featureType - {String} Local (without prefix) feature typeName (required).
* featureNS - {String} Feature namespace (required, but can be autodetected
* during the first query if GML is used as readFormat and
* featurePrefix is provided and matches the prefix used by the server
* for this featureType).
* featurePrefix - {String} Feature namespace alias (optional - only used
* for writing if featureNS is provided). Default is 'feature'.
* geometryName - {String} Name of geometry attribute. The default is
* 'the_geom' for WCS <version> 1.0, and null for higher versions. If
* null, it will be set to the name of the first geometry found in the
* first read operation.
* multi - {Boolean} If set to true, geometries will be casted to Multi
* geometries before they are written in a transaction. No casting will
* be done when reading features.
*/
initialize: function(options) {
OpenLayers.Protocol.prototype.initialize.apply(this, [options]);
if (!options.geometryName && parseFloat(this.format.version) > 1.0) {
this.setGeometryName(null);
}
},
/**
* APIMethod: destroy
* Clean up the protocol.
*/
destroy: function() {
if(this.options && !this.options.format) {
this.format.destroy();
}
this.format = null;
OpenLayers.Protocol.prototype.destroy.apply(this);
},
/**
* APIMethod: read
* Construct a request for reading new features. Since WCS splits the
* basic CRUD operations into GetFeature requests (for read) and
* Transactions (for all others), this method does not make use of the
* format's read method (that is only about reading transaction
* responses).
*
* Parameters:
* options - {Object} Options for the read operation, in addition to the
* options set on the instance (options set here will take precedence).
*
* To use a configured protocol to get e.g. a WCS hit count, applications
* could do the following:
*
* (code)
* protocol.read({
* readOptions: {output: "object"},
* resultType: "hits",
* maxFeatures: null,
* callback: function(resp) {
* // process resp.numberOfFeatures here
* }
* });
* (end)
*
* To use a configured protocol to use WCS paging (if supported by the
* server), applications could do the following:
*
* (code)
* protocol.read({
* startIndex: 0,
* count: 50
* });
* (end)
*
* To limit the attributes returned by the GetFeature request, applications
* can use the propertyNames option to specify the properties to include in
* the response:
*
* (code)
* protocol.read({
* propertyNames: ["DURATION", "INTENSITY"]
* });
* (end)
*/
read: function(options) {
OpenLayers.Protocol.prototype.read.apply(this, arguments);
options = OpenLayers.Util.extend({}, options);
OpenLayers.Util.applyDefaults(options, this.options || {});
var response = new OpenLayers.Protocol.Response({requestType: "read"});
var data = OpenLayers.Format.XML.prototype.write.apply(
this.format, [this.format.writeNode("wcs:GetFeature", options)]
);
response.priv = OpenLayers.Request.POST({
url: options.url,
callback: this.createCallback(this.handleRead, response, options),
params: options.params,
headers: options.headers,
data: data
});
return response;
},
/**
* APIMethod: setFeatureType
* Change the feature type on the fly.
*
* Parameters:
* featureType - {String} Local (without prefix) feature typeName.
*/
setFeatureType: function(featureType) {
this.featureType = featureType;
this.format.featureType = featureType;
},
/**
* APIMethod: setGeometryName
* Sets the geometryName option after instantiation.
*
* Parameters:
* geometryName - {String} Name of geometry attribute.
*/
setGeometryName: function(geometryName) {
this.geometryName = geometryName;
this.format.geometryName = geometryName;
},
/**
* Method: handleRead
* Deal with response from the read request.
*
* Parameters:
* response - {<OpenLayers.Protocol.Response>} The response object to pass
* to the user callback.
* options - {Object} The user options passed to the read call.
*/
handleRead: function(response, options) {
options = OpenLayers.Util.extend({}, options);
OpenLayers.Util.applyDefaults(options, this.options);
if(options.callback) {
var request = response.priv;
if(request.status >= 200 && request.status < 300) {
// success
var result = this.parseResponse(request, options.readOptions);
if (result && result.success !== false) {
if (options.readOptions && options.readOptions.output == "object") {
OpenLayers.Util.extend(response, result);
} else {
response.features = result;
}
response.code = OpenLayers.Protocol.Response.SUCCESS;
} else {
// failure (service exception)
response.code = OpenLayers.Protocol.Response.FAILURE;
response.error = result;
}
} else {
// failure
response.code = OpenLayers.Protocol.Response.FAILURE;
}
options.callback.call(options.scope, response);
}
},
/**
* Method: parseResponse
* Read HTTP response body and return features
*
* Parameters:
* request - {XMLHttpRequest} The request object
* options - {Object} Optional object to pass to format's read
*
* Returns:
* {Object} or {Array({<OpenLayers.Feature.Vector>})} or
* {<OpenLayers.Feature.Vector>}
* An object with a features property, an array of features or a single
* feature.
*/
parseResponse: function(request, options) {
var doc = request.responseXML;
if(!doc || !doc.documentElement) {
doc = request.responseText;
}
if(!doc || doc.length <= 0) {
return null;
}
var result = (this.readFormat !== null) ? this.readFormat.read(doc) :
this.format.read(doc, options);
if (!this.featureNS) {
var format = this.readFormat || this.format;
this.featureNS = format.featureNS;
// no need to auto-configure again on subsequent reads
format.autoConfig = false;
if (!this.geometryName) {
this.setGeometryName(format.geometryName);
}
}
return result;
},
/**
* Method: commit
* Given a list of feature, assemble a batch request for update, create,
* and delete transactions. A commit call on the prototype amounts
* to writing a WCS transaction - so the write method on the format
* is used.
*
* Parameters:
* features - {Array(<OpenLayers.Feature.Vector>)}
* options - {Object}
*
* Valid options properties:
* nativeElements - {Array({Object})} Array of objects with information for writing
* out <Native> elements, these objects have vendorId, safeToIgnore and
* value properties. The <Native> element is intended to allow access to
* vendor specific capabilities of any particular web feature server or
* datastore.
*
* Returns:
* {<OpenLayers.Protocol.Response>} A response object with a features
* property containing any insertIds and a priv property referencing
* the XMLHttpRequest object.
*/
commit: function(features, options) {
options = OpenLayers.Util.extend({}, options);
OpenLayers.Util.applyDefaults(options, this.options);
var response = new OpenLayers.Protocol.Response({
requestType: "commit",
reqFeatures: features
});
response.priv = OpenLayers.Request.POST({
url: options.url,
headers: options.headers,
data: this.format.write(features, options),
callback: this.createCallback(this.handleCommit, response, options)
});
return response;
},
/**
* Method: handleCommit
* Called when the commit request returns.
*
* Parameters:
* response - {<OpenLayers.Protocol.Response>} The response object to pass
* to the user callback.
* options - {Object} The user options passed to the commit call.
*/
handleCommit: function(response, options) {
if(options.callback) {
var request = response.priv;
// ensure that we have an xml doc
var data = request.responseXML;
if(!data || !data.documentElement) {
data = request.responseText;
}
var obj = this.format.read(data) || {};
response.insertIds = obj.insertIds || [];
if (obj.success) {
response.code = OpenLayers.Protocol.Response.SUCCESS;
} else {
response.code = OpenLayers.Protocol.Response.FAILURE;
response.error = obj;
}
options.callback.call(options.scope, response);
}
},
/**
* Method: filterDelete
* Send a request that deletes all features by their filter.
*
* Parameters:
* filter - {<OpenLayers.Filter>} filter
*/
filterDelete: function(filter, options) {
options = OpenLayers.Util.extend({}, options);
OpenLayers.Util.applyDefaults(options, this.options);
var response = new OpenLayers.Protocol.Response({
requestType: "commit"
});
var root = this.format.createElementNSPlus("wcs:Transaction", {
attributes: {
service: "WCS",
version: this.version
}
});
var deleteNode = this.format.createElementNSPlus("wcs:Delete", {
attributes: {
typeName: (options.featureNS ? this.featurePrefix + ":" : "") +
options.featureType
}
});
if(options.featureNS) {
deleteNode.setAttribute("xmlns:" + this.featurePrefix, options.featureNS);
}
var filterNode = this.format.writeNode("ogc:Filter", filter);
deleteNode.appendChild(filterNode);
root.appendChild(deleteNode);
var data = OpenLayers.Format.XML.prototype.write.apply(
this.format, [root]
);
return OpenLayers.Request.POST({
url: this.url,
callback : options.callback || function(){},
data: data
});
},
/**
* Method: abort
* Abort an ongoing request, the response object passed to
* this method must come from this protocol (as a result
* of a read, or commit operation).
*
* Parameters:
* response - {<OpenLayers.Protocol.Response>}
*/
abort: function(response) {
if (response) {
response.priv.abort();
}
},
CLASS_NAME: "OpenLayers.Protocol.WCS.v1"
});

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lib/OpenLayers/Protocol/WCS/v1_0_0.js
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/* Copyright (c) 2006-2012 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/Protocol/WCS/v1.js
*/
/**
* Class: OpenLayers.Protocol.WCS.v1_0_0
* A WCS v1.0.0 protocol for vector layers. Create a new instance with the
* <OpenLayers.Protocol.WCS.v1_0_0> constructor.
*
* Inherits from:
* - <OpenLayers.Protocol.WCS.v1>
*/
OpenLayers.Protocol.WCS.v1_0_0 = OpenLayers.Class(OpenLayers.Protocol.WCS.v1, {
/**
* Property: version
* {String} WCS version number.
*/
version: "1.0.0",
/**
* Constructor: OpenLayers.Protocol.WCS.v1_0_0
* A class for giving layers WCS v1.0.0 protocol.
*
* Parameters:
* options - {Object} Optional object whose properties will be set on the
* instance.
*
* Valid options properties:
* featureType - {String} Local (without prefix) feature typeName (required).
* featureNS - {String} Feature namespace (optional).
* featurePrefix - {String} Feature namespace alias (optional - only used
* if featureNS is provided). Default is 'feature'.
* geometryName - {String} Name of geometry attribute. Default is 'the_geom'.
*/
CLASS_NAME: "OpenLayers.Protocol.WCS.v1_0_0"
});

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lib/OpenLayers/Protocol/WCS/v1_1_0.js
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/* ======================================================================
OpenLayers/Protocol/WCS/v1_1_0.js
====================================================================== */
/* Copyright (c) 2006-2012 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/Protocol/WCS/v1.js
*/
/**
* Class: OpenLayers.Protocol.WCS.v1_1_0
* A WCS v1.1.0 protocol for vector layers. Create a new instance with the
* <OpenLayers.Protocol.WCS.v1_1_0> constructor.
*
* Differences from the v1.0.0 protocol:
* - uses Filter Encoding 1.1.0 instead of 1.0.0
* - uses GML 3 instead of 2 if no format is provided
*
* Inherits from:
* - <OpenLayers.Protocol.WCS.v1>
*/
OpenLayers.Protocol.WCS.v1_1_0 = OpenLayers.Class(OpenLayers.Protocol.WCS.v1, {
/**
* Property: version
* {String} WCS version number.
*/
version: "1.1.0",
CLASS_NAME: "OpenLayers.Protocol.WCS.v1_1_0"
});