/**
* Copyright 2012 Impetus Infotech.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.impetus.kundera.property.accessor;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.impetus.kundera.gis.geometry.Point;
import com.impetus.kundera.property.PropertyAccessException;
import com.impetus.kundera.property.PropertyAccessor;
import com.vividsolutions.jts.io.ParseException;
import com.vividsolutions.jts.io.WKTReader;
/**
* Property Accessor for {@link Point}
*
* @author amresh.singh
*/
public class PointAccessor implements PropertyAccessor<Point>
{
public static Logger log = LoggerFactory.getLogger(PointAccessor.class);
@Override
public Point fromBytes(Class targetClass, byte[] b)
{
ObjectInputStream ois;
Point o;
try
{
ois = new ObjectInputStream(new ByteArrayInputStream(b));
o = (Point) ois.readObject();
ois.close();
}
catch (IOException e)
{
log.error("IO exception, Caused by {}.", e);
throw new PropertyAccessException(e);
}
catch (ClassNotFoundException e)
{
log.error("Class not found exception, Caused by {}.", e);
throw new PropertyAccessException(e);
}
return o;
}
@Override
public byte[] toBytes(Object object)
{
ByteArrayOutputStream baos;
try
{
baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(object);
oos.close();
return baos.toByteArray();
}
catch (IOException e)
{
log.error("IO exception, Caused by {}.", e);
throw new PropertyAccessException(e);
}
}
@Override
public String toString(Object object)
{
return object != null ? object.toString() : null;
}
@Override
public Point fromString(Class targetClass, String s)
{
if (s == null)
return null;
WKTReader reader = new WKTReader();
try
{
return new Point((com.vividsolutions.jts.geom.Point) reader.read(s));
}
catch (ParseException e)
{
log.error("Parse exception, Caused by {}.", e);
throw new PropertyAccessException(e);
}
}
@Override
public Point getCopy(Object object)
{
if (object == null)
return null;
Point p = (Point) object;
return new Point(p.getX(), p.getY());
}
@Override
public Object getInstance(Class<?> clazz)
{
return new Point(0.0, 0.0);
}
}