source: tapas/web/src/json/serializers/AbstractJsonSerializer.java @ 376

package json.serializers;

import java.lang.reflect.Type;
import java.util.Locale;

import net.sf.json.JSON;
import net.sf.json.JSONObject;
import net.sf.json.JSONSerializer;
import net.sf.json.JsonConfig;
import net.sf.json.processors.JsonBeanProcessor;

import org.hibernate.Hibernate;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.i18n.LocaleContextHolder;

public abstract class AbstractJsonSerializer<T>
        implements JsonBeanProcessor, ApplicationContextAware
{
    public abstract JSONObject process( final T t, final JsonConfig jsonConfig );
    
        public void setApplicationContext( final ApplicationContext applicationContext ){}

    public final JSONObject processBean( final Object o, final JsonConfig jsonConfig )
    {
        //noinspection unchecked
        return process( (T) o, jsonConfig );
    }

    protected void serialize( final JSONObject json, final String key, final Object value, final JsonConfig jsonConfig )
    {
        if( value == null )
            return;

        if( value instanceof String )
            putString( json, key, (String) value );
        else if( value instanceof Number || value instanceof Boolean )
            json.put( key, value );
        else if( value instanceof Class<?> )
            json.put( key, ( (Class<?>) value ).getName() );
        else if( value instanceof Type || value instanceof Enum<?> )
            json.put( key, value.toString() );
        else if( Hibernate.isInitialized( value ) )
            json.put( key, JSONSerializer.toJSON( value, jsonConfig ) );
    }

    /**
     * Strings vaguely looking like json are automatically evaluated and converted to a JSONObject. We dont want that.
     * E.g.: without this function, {lua: "{npc='toto'}"} is added as : {lua: {npc: "toto"}}.
     * <p/>
     * See: http://json-lib.sourceforge.net/apidocs/net/sf/json/JSONObject.html
     * > Keys can be followed by = or => as well as by :
     */
    private void putString( final JSONObject json, final String key, final String value )
    {
        json.put( key, value );
        if( json.get( key ) instanceof JSON )
            json.put( key, '\'' + value + '\'' );
    }

    protected final Locale getLocale()
    {
        return LocaleContextHolder.getLocale();
    }
}