/*
 * Copyright 2019 Red Hat, Inc. and/or its affiliates.
 *
 * 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 org.kie.hacep.consumer;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;

import org.drools.core.ClassObjectFilter;
import org.kie.api.runtime.KieSession;
import org.kie.api.runtime.rule.QueryResults;
import org.kie.api.runtime.rule.QueryResultsRow;

public class ObjectFilterHelper {

    public static Collection<? extends Object> getObjectsFilterByNamedQuery(String namedQuery, String objectName, Object[] params, KieSession kieSession){
        QueryResults results = kieSession.getQueryResults(namedQuery, params);
        Iterator<QueryResultsRow> rowsIter = results.iterator();
        List objects = new ArrayList(results.size());
        while(rowsIter.hasNext()){
            QueryResultsRow row = rowsIter.next();
            objects.add(row.get(objectName));
        }
        return objects;
    }

    public static Collection<? extends Object> getObjectsFilterByClassType(Class clazzType, KieSession kieSession){
        return kieSession.getObjects(new ClassObjectFilter(clazzType));
    }
}
