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/**
 * Copyright (c) 2005-2011 Zauber S.A. 
 *
 * 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 ar.com.zauber.commons.dao.exception;

import java.util.Collection;
import java.util.LinkedList;

import org.apache.commons.lang.Validate;

import ar.com.zauber.commons.dao.Predicate;


/**
 * Builder que construye una exception 
 * recibe un Predicate sobre Set
 * se le van agregando excpetion y cuando el predicado da true
 * devuelve una triggered exception.
 * 
 * 
 * @author Mariano Semelman
 * @since Oct 13, 2009
 */
public class TriggeredExceptionBuilder  {


    private final Collection exceptions = new LinkedList();
    private final Predicate> condition;
    
    
    
    /**
     * Creates the BuilderTriggeredException.
     *
     * @param condition de 
     */
    public TriggeredExceptionBuilder(
            final Predicate> condition) {
        super();
        Validate.notNull(condition);
        this.condition = condition;
    }
    
    /** agrega un throwable a si mismo */
    public final TriggeredExceptionBuilder add(final Throwable t) {
        Validate.notNull(t);
        exceptions.add(t);
        if(condition.evaluate(exceptions)) {
            throw new TriggeredException(exceptions);
        }
        return this;
    }
    
    /** devuelve todas las excepciones ocurridas */
    public final Collection getThrowablesOcurred() {
        return this.exceptions;
    }
}