/* Copyright (c) 2001 - 2007 TOPP - www.openplans.org. All rights reserved.
* This code is licensed under the GPL 2.0 license, availible at the root
* application directory.
*/
package org.geoserver.wfs.xml.v1_1_0;
import net.opengis.wfs.QueryType;
import net.opengis.wfs.WfsFactory;
import org.geoserver.wfs.WFSException;
import org.geotools.gml2.bindings.GML2ParsingUtils;
import org.geotools.xml.AbstractComplexBinding;
import org.geotools.xml.ElementInstance;
import org.geotools.xml.Node;
import org.opengis.feature.Property;
import org.opengis.filter.Filter;
import org.opengis.filter.expression.Literal;
import org.opengis.filter.expression.PropertyName;
import org.opengis.filter.sort.SortBy;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
import org.picocontainer.MutablePicoContainer;
import java.net.URI;
import java.util.Iterator;
import java.util.List;
import javax.xml.namespace.QName;
/**
* Binding object for the type http://www.opengis.net/wfs:QueryType.
*
* <p>
* <pre>
* <code>
* <xsd:complexType name="QueryType">
* <xsd:annotation>
* <xsd:documentation>
* The Query element is of type QueryType.
* </xsd:documentation>
* </xsd:annotation>
* <xsd:sequence>
* <xsd:choice maxOccurs="unbounded" minOccurs="0">
* <xsd:element ref="wfs:PropertyName">
* <xsd:annotation>
* <xsd:documentation>
* The Property element is used to specify one or more
* properties of a feature whose values are to be retrieved
* by a Web Feature Service.
*
* While a Web Feature Service should endeavour to satisfy
* the exact request specified, in some instance this may
* not be possible. Specifically, a Web Feature Service
* must generate a valid GML3 response to a Query operation.
* The schema used to generate the output may include
* properties that are mandatory. In order that the output
* validates, these mandatory properties must be specified
* in the request. If they are not, a Web Feature Service
* may add them automatically to the Query before processing
* it. Thus a client application should, in general, be
* prepared to receive more properties than it requested.
*
* Of course, using the DescribeFeatureType request, a client
* application can determine which properties are mandatory
* and request them in the first place.
* </xsd:documentation>
* </xsd:annotation>
* </xsd:element>
* <xsd:element ref="ogc:Function">
* <xsd:annotation>
* <xsd:documentation>
* A function may be used as a select item in a query.
* However, if a function is used, care must be taken
* to ensure that the result type matches the type in the
*
* </xsd:documentation>
* </xsd:annotation>
* </xsd:element>
* </xsd:choice>
* <xsd:element maxOccurs="1" minOccurs="0" ref="ogc:Filter">
* <xsd:annotation>
* <xsd:documentation>
* The Filter element is used to define spatial and/or non-spatial
* constraints on query. Spatial constrains use GML3 to specify
* the constraining geometry. A full description of the Filter
* element can be found in the Filter Encoding Implementation
* Specification.
* </xsd:documentation>
* </xsd:annotation>
* </xsd:element>
* <xsd:element maxOccurs="1" minOccurs="0" ref="ogc:SortBy">
* <xsd:annotation>
* <xsd:documentation>
* The SortBy element is used specify property names whose
* values should be used to order (upon presentation) the
* set of feature instances that satisfy the query.
* </xsd:documentation>
* </xsd:annotation>
* </xsd:element>
* </xsd:sequence>
* <xsd:attribute name="handle" type="xsd:string" use="optional">
* <xsd:annotation>
* <xsd:documentation>
* The handle attribute allows a client application
* to assign a client-generated identifier for the
* Query. The handle is included to facilitate error
* reporting. If one Query in a GetFeature request
* causes an exception, a WFS may report the handle
* to indicate which query element failed. If the a
* handle is not present, the WFS may use other means
* to localize the error (e.g. line numbers).
* </xsd:documentation>
* </xsd:annotation>
* </xsd:attribute>
* <xsd:attribute name="typeName" type="wfs:TypeNameListType" use="required">
* <xsd:annotation>
* <xsd:documentation>
* The typeName attribute is a list of one or more
* feature type names that indicate which types
* of feature instances should be included in the
* reponse set. Specifying more than one typename
* indicates that a join operation is being performed.
* All the names in the typeName list must be valid
* types that belong to this query's feature content
* as defined by the GML Application Schema.
* </xsd:documentation>
* </xsd:annotation>
* </xsd:attribute>
* <xsd:attribute name="featureVersion" type="xsd:string" use="optional">
* <xsd:annotation>
* <xsd:documentation>
* For systems that implement versioning, the featureVersion
* attribute is used to specify which version of a particular
* feature instance is to be retrieved. A value of ALL means
* that all versions should be retrieved. An integer value
* 'i', means that the ith version should be retrieve if it
* exists or the most recent version otherwise.
* </xsd:documentation>
* </xsd:annotation>
* </xsd:attribute>
* <xsd:attribute name="srsName" type="xsd:anyURI" use="optional">
* <xsd:annotation>
* <xsd:documentation>
* This attribute is used to specify a specific WFS-supported SRS
* that should be used for returned feature geometries. The value
* may be the WFS StorageSRS value, DefaultRetrievalSRS value, or
* one of AdditionalSRS values. If no srsName value is supplied,
* then the features will be returned using either the
* DefaultRetrievalSRS, if specified, and StorageSRS otherwise.
* For feature types with no spatial properties, this attribute
* must not be specified or ignored if it is specified.
* </xsd:documentation>
* </xsd:annotation>
* </xsd:attribute>
* </xsd:complexType>
*
* </code>
* </pre>
* </p>
*
* @generated
*/
public class QueryTypeBinding extends AbstractComplexBinding {
WfsFactory wfsfactory;
public QueryTypeBinding(WfsFactory wfsfactory) {
this.wfsfactory = wfsfactory;
}
/**
* @generated
*/
public QName getTarget() {
return WFS.QUERYTYPE;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
*
* @generated modifiable
*/
public Class getType() {
return QueryType.class;
}
public void initializeChildContext(ElementInstance childInstance,
Node node, MutablePicoContainer context) {
//if an srsName is set for this geometry, put it in the context for
// children, so they can use it as well
if ( node.hasAttribute("srsName") ) {
try {
CoordinateReferenceSystem crs = GML2ParsingUtils.crs(node);
if ( crs != null ) {
context.registerComponentInstance(CoordinateReferenceSystem.class, crs);
}
} catch(Exception e) {
throw new WFSException(e, "InvalidParameterValue");
}
}
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
*
* @generated modifiable
*/
public Object parse(ElementInstance instance, Node node, Object value)
throws Exception {
QueryType query = wfsfactory.createQueryType();
//<xsd:choice maxOccurs="unbounded" minOccurs="0">
//<xsd:element ref="wfs:PropertyName">
if (node.hasChild("PropertyName")) {
//HACK, stripping of namespace prefix
for (Iterator p = node.getChildValues("PropertyName").iterator(); p.hasNext();) {
Object property = p.next();
String propertyName;
if(property instanceof String)
propertyName = (String) property;
else
propertyName = (String) ((PropertyName) property).getPropertyName();
if (propertyName.indexOf(':') != -1) {
propertyName = propertyName.substring(propertyName.indexOf(':') + 1);
}
query.getPropertyName().add(propertyName);
}
}
//<xsd:element ref="ogc:Function">
if (node.hasChild("Function")) {
query.getFunction().add(node.getChildValues("Function"));
}
//</xsd:choice>
//<xsd:element maxOccurs="1" minOccurs="0" ref="ogc:Filter">
if (node.hasChild(Filter.class)) {
query.setFilter((Filter) node.getChildValue(Filter.class));
}
//<xsd:element maxOccurs="1" minOccurs="0" ref="ogc:SortBy">
if (node.hasChild(SortBy[].class)) {
SortBy[] sortBy = (SortBy[]) node.getChildValue(SortBy[].class);
for (int i = 0; i < sortBy.length; i++)
query.getSortBy().add(sortBy[i]);
}
//<xsd:attribute name="handle" type="xsd:string" use="optional">
if (node.hasAttribute("handle")) {
query.setHandle((String) node.getAttributeValue("handle"));
}
//<xsd:attribute name="typeName" type="wfs:TypeNameListType" use="required">
query.setTypeName((List) node.getAttributeValue("typeName"));
//<xsd:attribute name="featureVersion" type="xsd:string" use="optional">
if (node.hasAttribute("featureVersion")) {
query.setFeatureVersion((String) node.getAttributeValue("featureVersion"));
}
//<xsd:attribute name="srsName" type="xsd:anyURI" use="optional">
if (node.hasAttribute("srsName")) {
query.setSrsName((URI) node.getAttributeValue("srsName"));
}
if ( node.hasChild( "XlinkPropertyName" ) ) {
query.getXlinkPropertyName().addAll( node.getChildValues( "XlinkPropertyName" ));
}
return query;
}
}