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package org.onap.vid.aai;
import org.apache.commons.lang3.StringUtils;
import org.codehaus.jackson.JsonNode;
import org.springframework.stereotype.Component;
import java.util.Optional;
@Component
public class AaiResponseTranslator {
public PortMirroringConfigData extractPortMirroringConfigData(AaiResponse<JsonNode> aaiResponse) {
return extractErrorResponseIfHttpError(aaiResponse).orElseGet(() -> extractPortMirroringConfigData(aaiResponse.getT()));
}
public PortMirroringConfigData extractPortMirroringConfigData(JsonNode cloudRegionAndSourceFromConfigurationResponse) {
final JsonNode payload = cloudRegionAndSourceFromConfigurationResponse;
if (payload == null) {
return new PortMirroringConfigDataError("Response payload is null", null);
}
final JsonNode results = payload.path("results");
if (results.isMissingNode()) {
return new PortMirroringConfigDataError("Root node 'results' is missing", payload.toString());
}
for (JsonNode resultNode : results) {
final JsonNode nodeType = resultNode.path("node-type");
if (nodeType.isTextual() && "cloud-region".equals(nodeType.getTextValue())) {
return getPortMirroringConfigData(payload, resultNode);
}
}
return new PortMirroringConfigDataError("Root node 'results' has no node where 'node-TYPE' is 'cloud-region'", payload.toString());
}
private PortMirroringConfigData getPortMirroringConfigData(JsonNode payload, JsonNode resultNode) {
final JsonNode properties = resultNode.path("properties");
if (properties.isMissingNode()) {
final String message = "The node-type 'cloud-region' does not contain a 'properties' node";
return new PortMirroringConfigDataError(message, payload.toString());
}
final JsonNode cloudRegionIdNode = properties.path("cloud-region-id");
if (cloudRegionIdNode.isMissingNode()) {
return new PortMirroringConfigDataError("The node-type 'cloud-region' does not contain the property 'cloud-region-id'", payload.toString());
}
if (!cloudRegionIdNode.isTextual()) {
return new PortMirroringConfigDataError("The node-type 'cloud-region' contains a non-textual value for the property 'cloud-region-id'", payload.toString());
}
final String cloudRegionId = cloudRegionIdNode.asText();
if (StringUtils.isBlank(cloudRegionId)) {
return new PortMirroringConfigDataError("Node 'properties.cloud-region-id' of node-type 'cloud-region' is blank", payload.toString());
}
return new PortMirroringConfigDataOk(cloudRegionId);
}
private Optional<PortMirroringConfigData> extractErrorResponseIfHttpError(AaiResponse aaiResponse) {
if (aaiResponse.getHttpCode() != org.springframework.http.HttpStatus.OK.value()) {
final String errorMessage = aaiResponse.getErrorMessage();
return Optional.of(new PortMirroringConfigDataError(
"Got " + aaiResponse.getHttpCode() + " from aai",
errorMessage != null ? errorMessage : null)
);
} else {
return Optional.empty();
}
}
public abstract static class PortMirroringConfigData {
}
public static class PortMirroringConfigDataOk extends PortMirroringConfigData {
private final String cloudRegionId;
public PortMirroringConfigDataOk(String cloudRegionId) {
this.cloudRegionId = cloudRegionId;
}
public String getCloudRegionId() {
return cloudRegionId;
}
}
public static class PortMirroringConfigDataError extends PortMirroringConfigData {
private final String errorDescription;
private final String rawAaiResponse;
public PortMirroringConfigDataError(String errorDescription, String rawAaiResponse) {
this.errorDescription = errorDescription;
this.rawAaiResponse = rawAaiResponse;
}
public String getErrorDescription() {
return errorDescription;
}
public String getRawAaiResponse() {
return rawAaiResponse;
}
}
}
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