package com.temenos.interaction.core.hypermedia;
/*
* #%L
* interaction-core
* %%
* Copyright (C) 2012 - 2013 Temenos Holdings N.V.
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* #L%
*/
import java.util.HashMap;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.temenos.interaction.core.entity.Entity;
import com.temenos.interaction.core.entity.EntityProperties;
import com.temenos.interaction.core.entity.EntityProperty;
/**
* Implements transformations from Entity objects
* @see {@link Transformer}
*/
public class EntityTransformer implements Transformer {
private final Logger logger = LoggerFactory.getLogger(EntityTransformer.class);
/**
* @precondition entity not null
*/
@Override
public Map<String, Object> transform(Object entity) {
if(entity instanceof Entity) {
return transform((Entity) entity);
} else {
logger.error("Unable to transform entity: " + entity.toString());
}
return null;
}
private Map<String, Object> transform(Entity entity) {
assert(entity != null);
Map<String, Object> map = new HashMap<String, Object>();
EntityProperties entityProperties = entity.getProperties();
Map<String, EntityProperty> properties = entityProperties.getProperties();
for (Map.Entry<String, EntityProperty> property : properties.entrySet()) {
String name = property.getKey();
EntityProperty propertyValue = (EntityProperty) property.getValue();
map.put(name, propertyValue.getValue());
}
return map;
}
/**
* This transformer will accept any {@link Entity} and push its {@link EntityProperties}
* into the returned Map.
*/
@Override
public boolean canTransform(Object entity) {
if (entity != null
&& (entity instanceof Entity)) {
return true;
}
return false;
}
}