195 lines
7.1 KiB
Java
195 lines
7.1 KiB
Java
package org.gcube.application.cms.serialization;
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import java.io.IOException;
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import java.time.format.DateTimeFormatter;
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import java.util.Iterator;
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import org.bson.Document;
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import org.bson.types.ObjectId;
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import org.gcube.application.cms.plugins.model.ComparableVersion;
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import org.gcube.application.geoportal.common.model.document.Project;
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import org.gcube.application.geoportal.common.model.rest.QueryRequest;
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import com.fasterxml.jackson.core.JsonGenerator;
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import com.fasterxml.jackson.core.JsonParser;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.DeserializationContext;
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import com.fasterxml.jackson.databind.DeserializationFeature;
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import com.fasterxml.jackson.databind.JsonDeserializer;
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import com.fasterxml.jackson.databind.JsonSerializer;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.fasterxml.jackson.databind.SerializationFeature;
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import com.fasterxml.jackson.databind.SerializerProvider;
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import com.fasterxml.jackson.databind.module.SimpleModule;
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import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
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import com.vdurmont.semver4j.Semver;
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import lombok.extern.slf4j.Slf4j;
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@Slf4j
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public class Serialization {
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public static final DateTimeFormatter FULL_FORMATTER=DateTimeFormatter.ofPattern("uuuuMMdd_HH-mm-ss");
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public static ObjectMapper mapper;
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static {
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mapper=new ObjectMapper();
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mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES,false);
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mapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
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mapper.registerModule(new JavaTimeModule());
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SimpleModule s=new SimpleModule();
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s.addDeserializer(ObjectId.class,new ObjectIdDeserializer());
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s.addSerializer(ObjectId.class,new ObjectIdSerializer());
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// s.addDeserializer(ComparableVersion.class,new ComparableVersionDeserializer());
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// s.addSerializer(ComparableVersion.class,new ComparableVersionSerializer());
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s.addDeserializer(Semver.class,new SemverDeserializer());
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s.addSerializer(Semver.class,new SemverSerializer());
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mapper.registerModule(s);
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}
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public static <T> T read(String jsonString,Class<T> clazz) throws JsonProcessingException, IOException {
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return mapper.readerFor(clazz).readValue(jsonString);
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}
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public static <T> Iterator<T> readCollection(String jsonString, Class<T> clazz) throws IOException {
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return mapper.readerFor(clazz).readValues(jsonString);
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}
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public static String write(Object toWrite) throws JsonProcessingException {
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String toReturn= mapper.writeValueAsString(toWrite);
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return toReturn;
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}
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public static QueryRequest parseQuery(String queryString) throws IOException {
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log.trace("Parsing query Request {} ",queryString);
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Document queryDocument = Document.parse(queryString);
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log.trace("Document is ",queryDocument.toJson());
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QueryRequest req = new QueryRequest();
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if (queryDocument.getOrDefault("ordering",null)!=null)
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req.setOrdering(Serialization.read(((Document) queryDocument.get("ordering")).toJson(), QueryRequest.OrderedRequest.class));
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if (queryDocument.getOrDefault("paging",null)!=null)
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req.setPaging(Serialization.read(((Document) queryDocument.get("paging")).toJson(), QueryRequest.PagedRequest.class));
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req.setProjection(queryDocument.get("projection", Document.class));
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req.setFilter(queryDocument.get("filter", Document.class));
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return req;
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}
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//**** PROFILED DOCUMENTS
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public static final <T> T convert(Object d,Class<T> clazz){
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return mapper.convertValue(d,clazz);
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}
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public static final <T> T convertAcceptStringAsNull(Object d,Class<T> clazz){
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mapper.configure(DeserializationFeature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT,true);
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T converted = mapper.convertValue(d,clazz);
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mapper.configure(DeserializationFeature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT,false);
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return converted;
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}
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public static final Document asDocument(Object obj) throws JsonProcessingException {
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return Document.parse(mapper.writeValueAsString(obj));
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}
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public static final Document asDocumentWithId(Project doc) throws JsonProcessingException {
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Document toReturn =Document.parse(mapper.writeValueAsString(doc));
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if(doc.getId()!=null)
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toReturn.put(Project.ID,new ObjectId(doc.getId()));
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return toReturn;
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}
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// ***** Serialization Exceptions
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// OBJECT ID
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private static class ObjectIdSerializer extends JsonSerializer<ObjectId> {
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@Override
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public void serialize(ObjectId objectId, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException, JsonProcessingException {
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if (objectId == null) jsonGenerator.writeNull();
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else jsonGenerator.writeString(objectId.toString());
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}
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@Override
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public Class<ObjectId> handledType() {
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return ObjectId.class;
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}
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}
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private static class ObjectIdDeserializer extends JsonDeserializer<ObjectId> {
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@Override
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public ObjectId deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException, JsonProcessingException {
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String value=jsonParser.getValueAsString();
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if(value==null || value.isEmpty() || value.equals("null"))
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return null;
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else return new ObjectId(value);
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}
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@Override
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public Class<ObjectId> handledType() {
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return ObjectId.class;
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}
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}
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//Comparable Version
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private static class ComparableVersionSerializer extends JsonSerializer<ComparableVersion> {
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@Override
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public void serialize(ComparableVersion comparableVersion, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException, JsonProcessingException {
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if (comparableVersion == null) jsonGenerator.writeNull();
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else jsonGenerator.writeString(comparableVersion.getCanonical());
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}
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@Override
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public Class<ComparableVersion> handledType() {
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return ComparableVersion.class;
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}
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}
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private static class ComparableVersionDeserializer extends JsonDeserializer<ComparableVersion> {
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@Override
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public ComparableVersion deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException, JsonProcessingException {
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String value=jsonParser.getValueAsString();
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if(value==null || value.isEmpty() || value.equals("null"))
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return null;
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else return new ComparableVersion(value);
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}
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@Override
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public Class<ComparableVersion> handledType() {
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return ComparableVersion.class;
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}
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}
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//Sem Version
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private static class SemverSerializer extends JsonSerializer<Semver> {
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@Override
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public void serialize(Semver semver, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException, JsonProcessingException {
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if (semver == null) jsonGenerator.writeNull();
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else jsonGenerator.writeString(semver.getValue());
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}
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@Override
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public Class<Semver> handledType() {
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return Semver.class;
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}
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}
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private static class SemverDeserializer extends JsonDeserializer<Semver> {
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@Override
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public Semver deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException, JsonProcessingException {
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String value=jsonParser.getValueAsString();
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if(value==null || value.isEmpty() || value.equals("null"))
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return null;
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else return new Semver(value);
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}
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@Override
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public Class<Semver> handledType() {
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return Semver.class;
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}
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}
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}
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