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/*-
* ============LICENSE_START=======================================================
* org.onap.integration
* ================================================================================
* Copyright (C) 2018 NOKIA 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.onap.pnfsimulator.simulator.validation;
import static org.onap.pnfsimulator.message.MessageConstants.MESSAGE_INTERVAL;
import static org.onap.pnfsimulator.message.MessageConstants.PNF_OAM_IPV4_ADDRESS;
import static org.onap.pnfsimulator.message.MessageConstants.PNF_OAM_IPV6_ADDRESS;
import static org.onap.pnfsimulator.message.MessageConstants.PNF_SERIAL_NUMBER;
import static org.onap.pnfsimulator.message.MessageConstants.PNF_VENDOR_NAME;
import static org.onap.pnfsimulator.message.MessageConstants.TEST_DURATION;
import com.google.common.collect.ImmutableMap;
import java.util.ArrayList;
import java.util.List;
import java.util.function.BiPredicate;
import org.apache.commons.lang3.StringUtils;
import org.json.JSONObject;
public class ParamsValidator {
private final static String MISSING_PARAMS_ERROR = "Some mandatory params are missing";
private static ParamsValidator instance;
public static ParamsValidator getInstance() {
if (instance == null) {
instance = new ParamsValidator();
}
return instance;
}
public void validate(JSONObject params) throws ValidationException {
ImmutableMap<String, BiPredicate<JSONObject, String>> paramValidators = ImmutableMap
.<String, BiPredicate<JSONObject, String>>builder()
.put(TEST_DURATION, this::isNotNumeric)
.put(MESSAGE_INTERVAL, this::isNotNumeric)
.put(PNF_SERIAL_NUMBER, this::nullOrEmpty)
.put(PNF_VENDOR_NAME, this::nullOrEmpty)
.put(PNF_OAM_IPV4_ADDRESS, this::nullOrEmpty)
.put(PNF_OAM_IPV6_ADDRESS, this::nullOrEmpty)
.build();
List<String> missingParams = new ArrayList<>();
paramValidators.forEach((param, validator) -> {
if (validator.test(params, param)) {
missingParams.add(param);
}
});
clearIPError(missingParams);
if (!missingParams.isEmpty()) {
throw new ValidationException(constructMessage(missingParams));
}
}
private String constructMessage(List<String> missingParams) {
StringBuilder msg = new StringBuilder(MISSING_PARAMS_ERROR);
missingParams.forEach(param -> {
msg.append('\n');
msg.append(param);
});
return msg.toString();
}
private boolean isNotNumeric(JSONObject params, String param) {
return nullOrEmpty(params, param) || !StringUtils.isNumeric(params.getString(param));
}
private boolean nullOrEmpty(JSONObject params, String param) {
return !params.has(param) || params.getString(param).isEmpty();
}
private void clearIPError(List<String> missingParams) {
// if only one IP is missing clear the error
if (!(missingParams.contains(PNF_OAM_IPV4_ADDRESS) && missingParams.contains(PNF_OAM_IPV6_ADDRESS))) {
missingParams.remove(PNF_OAM_IPV4_ADDRESS);
missingParams.remove(PNF_OAM_IPV6_ADDRESS);
}
}
}
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