org.openecomp.sdc.validation.utils.ValidationConfigurationManager.java Source code

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Here is the source code for org.openecomp.sdc.validation.utils.ValidationConfigurationManager.java

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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.validation.utils;

import org.apache.commons.collections4.CollectionUtils;
import org.openecomp.core.utilities.CommonMethods;
import org.openecomp.core.utilities.file.FileUtils;
import org.openecomp.core.utilities.json.JsonUtil;
import org.openecomp.core.validation.interfaces.Validator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class ValidationConfigurationManager {

    private static final String VALIDATION_CONFIGURATION = "validationConfiguration.json";
    private static final List<Validator> validators = new ArrayList<>();
    private static Logger logger = LoggerFactory.getLogger(ValidationConfigurationManager.class);

    /**
     * Init validators list.
     *
     * @return the list
     */
    public static List<Validator> initValidators() {
        synchronized (validators) {
            if (CollectionUtils.isEmpty(validators)) {
                InputStream validationConfigurationJson = FileUtils.getFileInputStream(VALIDATION_CONFIGURATION);
                ValidationConfiguration validationConfiguration = JsonUtil.json2Object(validationConfigurationJson,
                        ValidationConfiguration.class);
                List<ValidatorConfiguration> conf = validationConfiguration.getValidatorConfigurationList();
                conf.stream().filter(ValidatorConfiguration::isEnableInd).forEachOrdered(
                        validatorConfiguration -> validators.add(validatorInit(validatorConfiguration)));
            }
        }
        return validators;
    }

    private static Validator validatorInit(ValidatorConfiguration validatorConf) {
        Validator validator = null;
        try {
            validator = CommonMethods.newInstance(validatorConf.getImplementationClass(), Validator.class);
        } catch (IllegalArgumentException iae) {
            logger.error("Validator:" + validatorConf.getName() + " Class:" + validatorConf.getImplementationClass()
                    + " failed in initialization. error:" + iae.toString() + " trace:"
                    + Arrays.toString(iae.getStackTrace()));
        }
        return validator;
    }
}