information-system-model/src/main/java/org/gcube/informationsystem/types/TypeMapper.java

205 lines
7.4 KiB
Java

package org.gcube.informationsystem.types;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.gcube.com.fasterxml.jackson.annotation.JsonTypeName;
import org.gcube.com.fasterxml.jackson.databind.DeserializationFeature;
import org.gcube.com.fasterxml.jackson.databind.JavaType;
import org.gcube.com.fasterxml.jackson.databind.ObjectMapper;
import org.gcube.informationsystem.base.reference.Element;
import org.gcube.informationsystem.types.impl.TypeImpl;
import org.gcube.informationsystem.types.reference.Change;
import org.gcube.informationsystem.types.reference.Changelog;
import org.gcube.informationsystem.types.reference.Type;
import org.gcube.informationsystem.types.reference.TypeMetadata;
import org.gcube.informationsystem.types.reference.entities.EntityType;
import org.gcube.informationsystem.types.reference.entities.FacetType;
import org.gcube.informationsystem.types.reference.entities.ResourceType;
import org.gcube.informationsystem.types.reference.properties.LinkedEntity;
import org.gcube.informationsystem.types.reference.properties.PropertyDefinition;
import org.gcube.informationsystem.types.reference.properties.PropertyType;
import org.gcube.informationsystem.types.reference.relations.ConsistsOfType;
import org.gcube.informationsystem.types.reference.relations.IsRelatedToType;
import org.gcube.informationsystem.types.reference.relations.RelationType;
import org.gcube.informationsystem.utils.Version;
/**
* @author Luca Frosini (ISTI - CNR)
*/
public class TypeMapper {
protected static final ObjectMapper mapper;
static {
mapper = new ObjectMapper();
mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
mapper.configure(DeserializationFeature.FAIL_ON_MISSING_CREATOR_PROPERTIES, false);
mapper.registerSubtypes(Type.class);
mapper.registerSubtypes(EntityType.class);
mapper.registerSubtypes(ResourceType.class);
mapper.registerSubtypes(FacetType.class);
mapper.registerSubtypes(RelationType.class);
mapper.registerSubtypes(IsRelatedToType.class);
mapper.registerSubtypes(ConsistsOfType.class);
mapper.registerSubtypes(PropertyType.class);
mapper.registerSubtypes(PropertyDefinition.class);
mapper.registerSubtypes(LinkedEntity.class);
}
public static String serializeTypeDefinition(Type type) throws Exception{
String json = mapper.writeValueAsString(type);
return json;
}
public static Type deserializeTypeDefinition(String json) throws Exception {
Type type = mapper.readValue(json, Type.class);
return type;
}
public static String serializeTypeDefinitions(List<Type> typeDefinitions) throws Exception{
JavaType javaType = mapper.getTypeFactory().constructCollectionType(List.class, Type.class);
return mapper.writerFor(javaType).writeValueAsString(typeDefinitions);
}
public static List<Type> deserializeTypeDefinitions(String json) throws Exception{
JavaType javaType = mapper.getTypeFactory().constructCollectionType(ArrayList.class, Type.class);
return mapper.readValue(json, javaType);
}
// TODO move somewhere else, probably in Element
public static <E extends Element> Type createTypeDefinition(Class<E> clz) {
Type type = TypeImpl.getInstance(clz);
return type;
}
public static <E extends Element> String serializeType(Class<E> clz) throws Exception{
Type type = createTypeDefinition(clz);
return serializeTypeDefinition(type);
}
public static <E extends Element> String getType(E e){
return getType(e.getClass());
}
public static String getType(Class<? extends Element> clz){
String classSimpleName = clz.getSimpleName();
String name = null;
if(!clz.isInterface()) {
if(clz.isAnnotationPresent(JsonTypeName.class)) {
JsonTypeName jsonTypeName = clz.getAnnotation(JsonTypeName.class);
name = jsonTypeName.value();
if(name==null || name.compareTo("")==0) {
throw new RuntimeException("Invalid annotation @JsonTypeName for type " + classSimpleName);
}
return name;
}
}
if(clz.isAnnotationPresent(TypeMetadata.class)) {
TypeMetadata typeMetadata = clz.getAnnotation(TypeMetadata.class);
String typeMetadataName = typeMetadata.name();
if(typeMetadataName!=null && typeMetadataName.compareTo("")!=0) {
/*
if(name!=null && typeMetadataName.compareTo(name)!=0) {
throw new RuntimeException("Name in annotation @TypeMetadata differ from annotation in @JsonTypeName for type " + classSimpleName + ". Please be coerent");
}
*/
return typeMetadataName;
}else {
throw new RuntimeException("Invalid Name in annotation @TypeMetadata for type " + classSimpleName);
}
}else {
throw new RuntimeException("You must provide @TypeMetadata for " + classSimpleName);
}
}
public static String getTypeDescription(Class<? extends Element> clz){
String classSimpleName = clz.getSimpleName();
if(clz.isAnnotationPresent(TypeMetadata.class)) {
TypeMetadata typeMetadata = clz.getAnnotation(TypeMetadata.class);
String description = typeMetadata.description();
if(description!=null && description.compareTo("")!=0) {
return description;
}else {
throw new RuntimeException("Invalid Description in annotation @TypeMetadata for type " + classSimpleName);
}
}else {
throw new RuntimeException("You must provide @TypeMetadata for " + classSimpleName);
}
}
public static Version getTypeVersion(Class<? extends Element> clz){
String classSimpleName = clz.getSimpleName();
if(clz.isAnnotationPresent(TypeMetadata.class)) {
TypeMetadata typeMetadata = clz.getAnnotation(TypeMetadata.class);
return new Version(typeMetadata.version());
}else {
throw new RuntimeException("You must provide @TypeMetadata for " + classSimpleName);
}
}
public static Map<Version, String> getTypeChangelog(Class<? extends Element> clz){
Map<Version, String> map = new HashMap<>();
if(clz.isAnnotationPresent(Changelog.class)) {
Changelog changelog = clz.getAnnotation(Changelog.class);
Change[] changes = changelog.value();
for(Change change : changes) {
String version = change.version();
Version typeVersion = new Version(version);
if(map.containsKey(typeVersion)) {
throw new RuntimeException("Duplicated version " + version +" in @Change annotation");
}
String description = change.description();
if(description==null || description.compareTo("")==0) {
throw new RuntimeException("A valid description for version " + version +" must be provided in @Change annotation");
}
map.put(typeVersion, description);
}
}
if(!map.containsKey(Version.MINIMAL_VERSION)) {
map.putAll(TypeImpl.DEFAULT_CHANGELOG_MAP);
}
Version typeVersion = getTypeVersion(clz);
if (!map.containsKey(typeVersion)) {
throw new RuntimeException("The Type " + clz.getSimpleName() + " does not provided the appropriated changelog Map");
}
List<Version> versions = new ArrayList<>(map.keySet());
versions.sort(new Comparator<Version>() {
@Override
public int compare(Version o1, Version o2) {
/* o2.compareTo(o1) and not vice-versa
* because we want descending order
*/
return o2.compareTo(o1);
}
});
if(versions.get(0).compareTo(typeVersion)!=0) {
throw new RuntimeException("The Type declared version (i.e."+ typeVersion.toString() +") does not match the highest version declared in changelog (i.e. "+ versions.get(0) + "). Please fix your type.");
}
return map;
}
}