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/*-
 * ============LICENSE_START=======================================================
 * SDC
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * 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.
 * ============LICENSE_END=========================================================
 */

package org.openecomp.sdc.be.model.tosca.validators;

import org.openecomp.sdc.be.model.DataTypeDefinition;

import java.util.Map;

public class HeatBooleanValidator implements PropertyTypeValidator {

    private static HeatBooleanValidator booleanValidator = new HeatBooleanValidator();

    public static HeatBooleanValidator getInstance() {
        return booleanValidator;
    }

    private HeatBooleanValidator() {

    }

    @Override
    public boolean isValid(String value, String innerType, Map<String, DataTypeDefinition> allDataTypes) {

        if (value == null || value.isEmpty()) {
            return true;
        }

        if (value.equalsIgnoreCase("true") || value.equalsIgnoreCase("false") || value.equalsIgnoreCase("t")
                || value.equalsIgnoreCase("f") || value.equalsIgnoreCase("on") || value.equalsIgnoreCase("off")
                || value.equalsIgnoreCase("yes") || value.equalsIgnoreCase("no") || value.equalsIgnoreCase("y")
                || value.equalsIgnoreCase("n") || value.equalsIgnoreCase("1") || value.equalsIgnoreCase("0")) {
            return true;
        }

        return false;
    }

    @Override
    public boolean isValid(String value, String innerType) {
        return isValid(value, innerType, null);
    }

}