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/*
 * Copyright 2016 Goldman Sachs.
 *
 * 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 com.gs.dmn.validation;

import com.gs.dmn.DMNModelRepository;

import java.util.ArrayList;
import java.util.List;

public class CompositeDMNValidator implements DMNValidator {
    private final List validators = new ArrayList<>();

    public CompositeDMNValidator(List validators) {
        if (validators != null) {
            this.validators.addAll(validators);
        }
    }

    @Override
    public List validate(DMNModelRepository dmnModelRepository) {
        List errors = new ArrayList<>();
        if (isEmpty(dmnModelRepository)) {
            return errors;
        }

        for(DMNValidator validator: this.validators) {
            List result = validator.validate(dmnModelRepository);
            if (result != null) {
                errors.addAll(result);
            }
        }
        return errors;
    }
}