/*!
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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 Lesser General Public License for more details.
*
* Copyright (c) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.platform.web.http.api.resources;
import com.sun.jersey.api.json.JSONConfiguration;
import com.sun.jersey.api.json.JSONJAXBContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.ws.rs.ext.ContextResolver;
import javax.ws.rs.ext.Provider;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import java.lang.reflect.Field;
import java.util.ArrayList;
@Provider
public class JAXBContextResolver implements ContextResolver<JAXBContext> {
private JAXBContext context;
@SuppressWarnings( "rawtypes" )
private final ArrayList<Class> types = new ArrayList<Class>();
private final ArrayList<String> arrays = new ArrayList<String>();
private final Logger logger = LoggerFactory.getLogger( getClass() );
public JAXBContextResolver() throws Exception {
types.add( ArrayList.class );
types.add( JaxbList.class );
arrays.add( "list" );
arrays.add( "values" );
JSONConfiguration config =
JSONConfiguration.mapped().rootUnwrapping( true ).arrays( arrays.toArray( new String[] {} ) ).build();
context = new JSONJAXBContext( config, types.toArray( new Class[] {} ) );
}
public JAXBContext getContext( Class<?> objectType ) {
synchronized ( types ) {
if ( types.contains( objectType ) ) {
return context;
}
}
// need to see if class has any ArrayList types, if so, add those to arrays
Field[] fields = objectType.getDeclaredFields();
for ( int i = 0; i < fields.length; i++ ) {
if ( fields[i].getType().isAssignableFrom( ArrayList.class ) ) {
String simpleName = fields[i].getName();
simpleName = simpleName.substring( 0, 1 ).toLowerCase() + simpleName.substring( 1 );
arrays.add( simpleName );
}
}
String simpleName = objectType.getSimpleName();
simpleName = simpleName.substring( 0, 1 ).toLowerCase() + simpleName.substring( 1 );
arrays.add( simpleName );
try {
JSONConfiguration config =
JSONConfiguration.mapped().rootUnwrapping( true ).arrays( arrays.toArray( new String[arrays.size()] ) )
.build();
synchronized ( types ) {
types.add( objectType );
context = new JSONJAXBContext( config, types.toArray( new Class[types.size()] ) );
}
return context;
} catch ( JAXBException e ) {
logger.error( "Error creating JAXBContext for class " + objectType, e );
}
return null;
}
}