/*
* Copyright 2004-2009 the original author or authors.
*
* 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 org.compass.core.converter.extended;
import org.compass.core.Property;
import org.compass.core.Resource;
import org.compass.core.ResourceFactory;
import org.compass.core.converter.ConversionException;
import org.compass.core.converter.Converter;
import org.compass.core.mapping.Mapping;
import org.compass.core.mapping.ResourcePropertyMapping;
import org.compass.core.marshall.MarshallingContext;
/**
* @author kimchy
*/
public class ObjectByteArrayConverter implements Converter {
public boolean marshall(Resource resource, Object root, Mapping mapping, MarshallingContext context)
throws ConversionException {
ResourcePropertyMapping resourcePropertyMapping = (ResourcePropertyMapping) mapping;
ResourceFactory resourceFactory = context.getResourceFactory();
// don't save a null value if the context does not states so
if (root == null && !handleNulls(context)) {
return false;
}
String propertyName = resourcePropertyMapping.getPath().getPath();
Byte[] oValue = (Byte[]) root;
byte value[] = new byte[oValue.length];
for (int i = 0; i < oValue.length; i++) {
value[i] = oValue[i].byteValue();
}
Property p = resourceFactory.createProperty(propertyName, value, resourcePropertyMapping.getStore());
p.setBoost(resourcePropertyMapping.getBoost());
resource.addProperty(p);
return resourcePropertyMapping.getStore() != Property.Store.NO;
}
public Object unmarshall(Resource resource, Mapping mapping, MarshallingContext context) throws ConversionException {
ResourcePropertyMapping resourcePropertyMapping = (ResourcePropertyMapping) mapping;
if (resourcePropertyMapping.getStore() == Property.Store.NO) {
// it is not stored, so don't bother with converting it
return null;
}
String propertyName = resourcePropertyMapping.getPath().getPath();
Property p = resource.getProperty(propertyName);
// don't set anything if null
if (p == null) {
return null;
}
byte[] value = p.getBinaryValue();
Byte[] oValue = new Byte[value.length];
for (int i = 0; i < value.length; i++) {
oValue[i] = new Byte(value[i]);
}
return oValue;
}
/**
* Should the converter handle nulls? Handling nulls means should the
* converter process nulls or not. Usually the converter will not
* persist null values, but sometimes it might be needed
* ({@link org.compass.core.marshall.MarshallingContext#handleNulls()}).
* <p/>
* Extracted to a method so special converters can control null handling.
*
* @param context
* @return <code>true</code> if the converter should handle null values
*/
protected boolean handleNulls(MarshallingContext context) {
return context.handleNulls();
}
}