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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 static org.onap.pnfsimulator.message.MessageConstants.VES_SERVER_URL;
import com.google.common.collect.ImmutableMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.function.BiPredicate;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.apache.commons.lang3.StringUtils;
import org.json.JSONObject;
public class ParamsValidator {
private final static String MISSING_PARAMS_MESSAGE = "Following mandatory params are missing:\n";
private final Map<String, BiPredicate<String, JSONObject>> simulatorParamsValidators = ImmutableMap
.<String, BiPredicate<String, JSONObject>>builder()
.put(VES_SERVER_URL, this::isDefined)
.put(TEST_DURATION, this::isNumeric)
.put(MESSAGE_INTERVAL, this::isNumeric)
.build();
private final Map<String, BiPredicate<String, JSONObject>> messageParamsValidators = ImmutableMap
.<String, BiPredicate<String, JSONObject>>builder()
.put(PNF_SERIAL_NUMBER, this::isDefined)
.put(PNF_VENDOR_NAME, this::isDefined)
.put(PNF_OAM_IPV4_ADDRESS, this::isDefined)
.put(PNF_OAM_IPV6_ADDRESS, this::isDefined)
.build();
private JSONObject simulatorParams;
private JSONObject messageParams;
private ParamsValidator(JSONObject simulatorParams, JSONObject messageParams) {
this.simulatorParams = simulatorParams;
this.messageParams = messageParams;
}
public static ParamsValidator forParams(JSONObject simulatorParams, JSONObject messageParams) {
return new ParamsValidator(simulatorParams, messageParams);
}
public void validate() throws ValidationException {
Stream<String> missingSimulatorParams = simulatorParamsValidators
.entrySet()
.stream()
.filter(entry -> !entry.getValue().test(entry.getKey(), simulatorParams))
.map(Entry::getKey);
Stream<String> missingMessageParams = messageParamsValidators
.entrySet()
.stream()
.filter(entry -> !entry.getValue().test(entry.getKey(), messageParams))
.map(Entry::getKey);
List<String> missingParams = Stream
.concat(missingMessageParams, missingSimulatorParams)
.collect(Collectors.toList());
resolveMissingIP(missingParams);
if (!missingParams.isEmpty()) {
throw new ValidationException(constructMessage(missingParams));
}
}
private String constructMessage(List<String> missingParams) {
return MISSING_PARAMS_MESSAGE + missingParams
.stream()
.collect(Collectors.joining("\n"));
}
private boolean isNumeric(String param, JSONObject container) {
return isDefined(param, container) && StringUtils.isNumeric(container.getString(param));
}
private boolean isDefined(String param, JSONObject container) {
return container.has(param) && !container.getString(param).isEmpty();
}
private void resolveMissingIP(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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