BasicValidator.java

/*
 * GovWay - A customizable API Gateway 
 * https://govway.org
 * 
 * Copyright (c) 2005-2025 Link.it srl (https://link.it).
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3, as published by
 * the Free Software Foundation.
 *
 * 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 General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
package org.openspcoop2.monitor.engine.dynamic;

import org.openspcoop2.monitor.sdk.condition.Context;
import org.openspcoop2.monitor.sdk.exceptions.ValidationException;
import org.openspcoop2.monitor.sdk.parameters.Parameter;
import org.openspcoop2.monitor.sdk.plugins.ISearchArguments;

import java.util.Iterator;
import java.util.Map;

import org.openspcoop2.utils.LoggerWrapperFactory;
import org.slf4j.Logger;

/**
 * BasicValidator
 *
 * @author Poli Andrea (apoli@link.it)
 * @author $Author$
 * @version $Rev$, $Date$
 */
public class BasicValidator implements IDynamicValidator{
    
    private static Logger log = LoggerWrapperFactory.getLogger(BasicValidator.class);
    
    private String tipoPlugin;
    private String tipo;
    private String className;
    
    protected BasicValidator(String tipoPlugin, String tipo, String className) {
        this.tipoPlugin = tipoPlugin;
        this.tipo = tipo;
        this.className = className;
    }
    
    @Override
    public void validate(Context context) throws ValidationException {
        
        try{
            
            IDynamicLoader bl = DynamicFactory.getInstance().newDynamicLoader(this.tipoPlugin, this.tipo, this.className, BasicValidator.log);
            
            Object obj = bl.newInstance();
            
            if(obj instanceof ISearchArguments){
                ((ISearchArguments) obj).validate(context);
            }else{
                String iface = ISearchArguments.class.getName();
                throw new Exception("La classe ["+this.className+"] non implementa l'interfaccia ["+iface+"]");
            }
            
            // Se non sono stati sollevati errori, verifico che i parametri dichiarati come required possiedano un valore.
            // Il controllo è fatto appositamente dopo il validate sdk, in modo da permettere di personalizzare i controlli dentro il metodo validate
            Map<String, Parameter<?>> mapParams = context.getParameters();
            if(mapParams!=null && mapParams.size()>0){
                Iterator<String> keys = mapParams.keySet().iterator();
                while (keys.hasNext()) {
                    String idParameter = (String) keys.next();
                    Parameter<?> p = mapParams.get(idParameter);
                    if(p.getRendering().isRequired()){
                        Object o = p.getValue();
                        if(o==null){
                            throw new ValidationException("Non è stato fornito un valore per il parametro '"+idParameter+"'");
                        }
                    }
                }
            }
            
        }catch(ClassNotFoundException cnfe){
            BasicValidator.log.error("Impossibile caricare il plugin. La classe indicata ["+this.className+"] non esiste.",cnfe);
            throw new ValidationException("Impossibile caricare il plugin. La classe indicata ["+this.className+"] non esiste.");
        }catch (ValidationException ve) {
            throw ve;
        }catch (Exception e) {
            BasicValidator.log.error(e.getMessage(),e);
            throw new ValidationException(e.getMessage());
        }
    }
}