/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2007-2008, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotools.data.wfs.feature;
import org.geotools.feature.AttributeImpl;
import org.geotools.feature.PropertyImpl;
import org.geotools.feature.type.AttributeDescriptorImpl;
import org.geotools.filter.identity.GmlObjectIdImpl;
import org.geotools.util.Converters;
import org.geotools.util.Utilities;
import org.opengis.feature.Attribute;
import org.opengis.feature.IllegalAttributeException;
import org.opengis.feature.type.AttributeDescriptor;
import org.opengis.feature.type.AttributeType;
import org.opengis.filter.identity.Identifier;
/**
* Simple, mutable class to store attributes - that does not validate!
*
* @author Jody Garnett
*
*
*
*
* @source $URL$
* @version $Id$
*/
public class LenientAttribute extends PropertyImpl implements Attribute {
/**
* id of the attribute.
*/
protected final Identifier id;
public LenientAttribute(Object content, AttributeDescriptor descriptor,
String id) {
super( content, descriptor );
if( id != null ){
this.id = new GmlObjectIdImpl( id );
}
else {
this.id = null;
}
}
public LenientAttribute(Object content, AttributeType type, String id) {
this( content, new AttributeDescriptorImpl( type, type.getName(), 1, 1, true, null), id );
}
public Identifier getIdentifier(){
return id;
}
public AttributeDescriptor getDescriptor() {
return (AttributeDescriptor) super.getDescriptor();
}
public AttributeType getType() {
return (AttributeType) super.getType();
}
/**
* Override of setValue to convert the newValue to specified type if need
* be.
*/
public void setValue(Object newValue) throws IllegalArgumentException,
IllegalStateException {
// newValue = parse(newValue);
// Types.validate(getType(), this, newValue);
super.setValue( newValue );
}
/**
* Override of hashCode.
*
* @return hashCode for this object.
*/
public int hashCode() {
return super.hashCode() + ( 37 * (id == null ? 0 : id.hashCode()) );
}
/**
* Override of equals.
*
* @param other
* the object to be tested for equality.
*
* @return whether other is equal to this attribute Type.
*/
public boolean equals(Object obj) {
if ( this == obj ) {
return true;
}
if (!(obj instanceof AttributeImpl)) {
return false;
}
if (!super.equals(obj)) {
return false;
}
AttributeImpl att = (AttributeImpl) obj;
return Utilities.equals( id, att.getIdentifier() );
}
public boolean isValid() {
return true;
}
public String toString() {
return super.toString() + ":" + id;
}
/**
* Allows this Attribute to convert an argument to its prefered storage
* type. If no parsing is possible, returns the original value. If a parse
* is attempted, yet fails (i.e. a poor decimal format) throw the Exception.
* This is mostly for use internally in Features, but implementors should
* simply follow the rules to be safe.
*
* @param value
* the object to attempt parsing of.
*
* @return <code>value</code> converted to the preferred storage of this
* <code>AttributeType</code>. If no parsing was possible then
* the same object is returned.
*
* @throws IllegalArgumentException
* if parsing is attempted and is unsuccessful.
*/
protected Object parse(Object value) throws IllegalArgumentException {
if ( value != null ) {
Class target = getType().getBinding();
if ( !target.isAssignableFrom( value.getClass() ) ) {
// attempt to convert
Object converted = Converters.convert(value,target);
if ( converted != null ) {
value = converted;
}
}
}
return value;
}
public void validate() throws IllegalAttributeException {
// we're lenient, no validation
}
}