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/*-
* ============LICENSE_START=======================================================
* VID
* ================================================================================
* Copyright (C) 2017 - 2019 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.onap.vid.aai.model;
import com.google.common.collect.ImmutableList;
import org.onap.vid.aai.AaiResponse;
import java.util.LinkedList;
import java.util.List;
import java.util.Optional;
import java.util.function.Predicate;
import java.util.stream.Collectors;
public class PortDetailsTranslator {
public static class PortDetailsOk implements PortDetails {
private final String interfaceId;
private final String interfaceName;
private final boolean isPortMirrored;
public PortDetailsOk(String interfaceId, String interfaceName, boolean isPortMirrored) {
this.interfaceId = interfaceId;
this.interfaceName = interfaceName;
this.isPortMirrored = isPortMirrored;
}
public String getInterfaceId() {
return interfaceId;
}
public String getInterfaceName() {
return interfaceName;
}
public boolean getIsPortMirrored() {
return isPortMirrored;
}
}
public interface PortDetails {
}
public static class PortDetailsError implements PortDetails {
private final String errorDescription;
private final String rawAaiResponse;
public PortDetailsError(String errorDescription, String rawAaiResponse) {
this.errorDescription = errorDescription;
this.rawAaiResponse = rawAaiResponse;
}
public String getErrorDescription() {
return errorDescription;
}
public String getRawAaiResponse() {
return rawAaiResponse;
}
}
public static PortDetails extractPortDetailsFromProperties(Properties properties, String rawPayload) {
List<String> errorDescriptions = new LinkedList<>();
describeIfNullOrEmpty("interface-id", properties.getInterfaceId(), errorDescriptions);
describeIfNullOrEmpty("interface-name", properties.getInterfaceName(), errorDescriptions);
describeIfNullOrEmpty("is-port-mirrored", properties.getIsPortMirrored(), errorDescriptions);
if (errorDescriptions.isEmpty()) {
return new PortDetailsOk(properties.getInterfaceId(), properties.getInterfaceName(), properties.getIsPortMirrored());
} else {
return new PortDetailsError(String.join(" ", errorDescriptions), rawPayload);
}
}
private static void describeIfNullOrEmpty(String name, Object value, List<String> errorDescriptions) {
if (value == null) {
errorDescriptions.add("Value of '" + name + "' is missing.");
} else if (value.toString().isEmpty()) {
errorDescriptions.add("Value of '" + name + "' is empty.");
}
}
private static Optional<List<PortDetails>> extractErrorResponseIfHttpError(AaiResponse aaiResponse, String rawPayload) {
if (aaiResponse.getHttpCode() != org.springframework.http.HttpStatus.OK.value()) {
final String errorMessage = aaiResponse.getErrorMessage();
return Optional.of(ImmutableList.of(new PortDetailsError(
"Got " + aaiResponse.getHttpCode() + " from aai",
errorMessage != null ? errorMessage : rawPayload)
));
} else {
return Optional.empty();
}
}
public List<PortDetails> extractPortDetailsInternal(CustomQuerySimpleResult aaiGetPortsResponse, String rawPayload) {
List<SimpleResult> filteredResult = getFilteredPortList(aaiGetPortsResponse.getResults());
return filteredResult.stream()
.map(SimpleResult::getProperties)
.map(p -> extractPortDetailsFromProperties(p, rawPayload))
.collect(Collectors.toList());
}
public List<SimpleResult> getFilteredPortList(List<SimpleResult> results) {
final String LINTERFACE = "l-interface";
final Predicate<SimpleResult> ifIsPort = (SimpleResult r) -> LINTERFACE.equals(r.getNodeType());
Predicate<SimpleResult> ifIsSource = getIsSourcePredicate();
return results.stream()
.filter(ifIsPort)
.filter(ifIsSource)
.collect(Collectors.toList());
}
private Predicate<SimpleResult> getIsSourcePredicate() {
final String PORT_LABEL = "org.onap.relationships.inventory.Source";
return (SimpleResult r) -> r.getRelatedTo().stream()
.anyMatch(relatedTo -> PORT_LABEL.equalsIgnoreCase(relatedTo.getRelationshipLabel()));
}
public List<PortDetails> extractPortDetails(AaiResponse<CustomQuerySimpleResult> aaiGetPortsResponse, String rawPayload) {
return extractErrorResponseIfHttpError(aaiGetPortsResponse, rawPayload).orElseGet(() -> extractPortDetailsInternal(aaiGetPortsResponse.getT(), rawPayload));
}
}
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