200 lines
7.2 KiB
Java
200 lines
7.2 KiB
Java
package eu.eudat.models.rda.mapper;
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import com.fasterxml.jackson.databind.JsonNode;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.fasterxml.jackson.databind.node.ArrayNode;
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import com.fasterxml.jackson.databind.node.TextNode;
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import eu.eudat.logic.utilities.helpers.MyStringUtils;
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import eu.eudat.models.rda.Metadatum;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.IOException;
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import java.util.*;
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import java.util.stream.Collectors;
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public class MetadataRDAMapper {
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private static final Logger logger = LoggerFactory.getLogger(MetadataRDAMapper.class);
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public static List<Metadatum> toRDAList(List<JsonNode> nodes) {
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Map<String, String> rdaMap = new HashMap<>();
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List<Metadatum> rdas = new ArrayList<>();
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for (JsonNode node: nodes) {
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String rdaProperty = node.get("rdaProperty").asText();
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JsonNode rdaValue = node.get("value");
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for (PropertyName propertyName: PropertyName.values()) {
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if (rdaProperty.contains(propertyName.getName())) {
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switch (propertyName) {
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case METADATA_STANDARD_ID:
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if (rdaValue instanceof ArrayNode) {
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try {
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ObjectMapper mapper = new ObjectMapper();
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for (Iterator<JsonNode> it = rdaValue.elements(); it.hasNext(); ) {
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JsonNode data = null;
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data = mapper.readTree(it.next().asText());
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if (data.get("uri") != null) {
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rdas.add(new Metadatum());
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rdas.get(rdas.size() - 1).setMetadataStandardId(MetadataStandardIdRDAMapper.toRDA(data.get("uri").asText()));
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rdas.get(rdas.size() - 1).setDescription(data.get("label").asText());
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rdas.get(rdas.size() - 1).setAdditionalProperty("fieldId", node.get("id").asText());
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rdas.get(rdas.size() - 1).setAdditionalProperty("valueId", data.get("id").asText());
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rdaMap.put(data.get("uri").asText(), node.get("numbering").asText());
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}
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}
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} catch (IOException e) {
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logger.error(e.getMessage(), e);
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}
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} else if (rdaValue instanceof TextNode && rdaProperty.contains("identifier") && !rdaValue.asText().isEmpty()) {
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rdas.add(new Metadatum());
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rdas.get(rdas.size() - 1).setMetadataStandardId(MetadataStandardIdRDAMapper.toRDA(rdaValue.asText()));
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rdas.get(rdas.size() - 1).setAdditionalProperty("identifierId", node.get("id").asText());
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rdaMap.put(rdaValue.asText(), node.get("numbering").asText());
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}
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break;
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case DESCRIPTION:
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if (!rdaValue.asText().isEmpty()) {
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Metadatum rda = getRelative(rdas, rdaMap, node.get("numbering").asText());
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if (rda != null) {
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rda.setDescription(rdaValue.asText());
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rda.setAdditionalProperty("descriptionId", node.get("id").asText());
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} else {
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rdas.stream().filter(rda1 -> rda1.getDescription() == null || rda1.getDescription().isEmpty()).forEach(rda1 -> rda1.setDescription(rdaValue.asText()));
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}
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}
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break;
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case LANGUAGE:
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String language = rdaValue.asText();
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Metadatum.Language lang = Metadatum.Language.fromValue(language);
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Metadatum rda = getRelative(rdas, rdaMap, node.get("numbering").asText());
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if (rda != null) {
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rda.setLanguage(lang);
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rda.setAdditionalProperty("languageId", node.get("id").asText());
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} else {
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rdas.forEach(rda1 -> rda1.setLanguage(lang));
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}
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break;
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}
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}
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}
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}
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return rdas;
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}
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public static Map<String, String> toProperties(List<Metadatum> rdas) {
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Map<String, String> properties = new HashMap<>();
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List<Object> standardIds = new ArrayList<>();
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ObjectMapper mapper = new ObjectMapper();
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rdas.forEach(rda -> {
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rda.getAdditionalProperties().entrySet().forEach(entry -> {
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try {
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switch (entry.getKey()) {
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case "fieldId":
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Map<String, String> metadata = toMap(rda);
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standardIds.add(metadata);
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properties.put(entry.getValue().toString(), mapper.writeValueAsString(standardIds));
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break;
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case "identifierId":
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properties.put(entry.getValue().toString(), rda.getMetadataStandardId().getIdentifier());
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break;
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case "descriptionId":
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properties.put(entry.getValue().toString(), rda.getDescription());
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break;
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case "languageId":
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if (rda.getLanguage() != null) {
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properties.put(entry.getValue().toString(), rda.getLanguage().value());
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}
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break;
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}
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}catch (Exception e) {
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logger.error(e.getMessage(), e);
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}
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});
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});
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return properties;
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}
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public static Metadatum toRDA(JsonNode node) {
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Metadatum rda = new Metadatum();
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String rdaProperty = node.get("rdaProperty").asText();
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JsonNode rdaValue = node.get("value");
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if (rdaProperty.contains("metadata_standard_id")) {
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if (rdaValue instanceof ArrayNode) {
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for (Iterator<JsonNode> it = rdaValue.elements(); it.hasNext(); ) {
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JsonNode data = it.next();
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if (data.get("uri") != null) {
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rda.setMetadataStandardId(MetadataStandardIdRDAMapper.toRDA(data.get("uri").asText()));
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}
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}
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}
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} else if (rdaProperty.contains("description")) {
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rda.setDescription(rdaValue.asText());
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} else if (rdaProperty.contains("language")) {
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String language = rdaValue.asText();
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Metadatum.Language lang = Metadatum.Language.fromValue(language);
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rda.setLanguage(lang);
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}
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return rda;
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}
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private static Metadatum getRelative(List<Metadatum> rdas, Map<String, String> rdaMap, String numbering) {
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String target = rdaMap.entrySet().stream().filter(entry -> MyStringUtils.getFirstDifference(entry.getValue(), numbering) > 0)
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.max(Comparator.comparingInt(entry -> MyStringUtils.getFirstDifference(entry.getValue(), numbering))).map(Map.Entry::getKey).orElse("");
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return rdas.stream().filter(rda -> rda.getMetadataStandardId().getIdentifier().equals(target)).distinct().findFirst().orElse(null);
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}
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private enum PropertyName {
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METADATA_STANDARD_ID("metadata_standard_id"),
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DESCRIPTION("description"),
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LANGUAGE("language");
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private final String name;
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PropertyName(String name) {
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this.name = name;
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}
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public String getName() {
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return name;
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}
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}
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private static Map<String, String> toMap(Metadatum rda) {
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Map<String, String> result = new HashMap<>();
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ObjectMapper mapper = new ObjectMapper();
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Map<String, Object> metadata = mapper.convertValue(rda, Map.class);
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Map<String, String> additionalProperties = mapper.convertValue(metadata.get("additional_properties"), Map.class);
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String id = additionalProperties.remove("valueId");
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additionalProperties.clear();
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additionalProperties.put("id", id);
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Map<String, String> metadataStandardId = mapper.convertValue(metadata.get("metadata_standard_id"), Map.class);
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String url = metadataStandardId.remove("identifier");
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metadataStandardId.remove("type");
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metadataStandardId.put("uri", url);
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metadata.remove("additional_properties");
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metadata.remove("metadata_standard_id");
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Map<String, String> newMetadata = metadata.entrySet().stream().collect(Collectors.toMap(Map.Entry::getKey, entry -> entry.getValue().toString()));
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String label = newMetadata.remove("description");
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newMetadata.put("label", label);
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result.putAll(newMetadata);
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result.putAll(metadataStandardId);
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result.putAll(additionalProperties);
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return result;
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}
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}
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