110 lines
3.9 KiB
Java
110 lines
3.9 KiB
Java
package org.gcube.informationsystem.types;
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import java.lang.reflect.Field;
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import java.util.ArrayList;
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import java.util.List;
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import org.gcube.com.fasterxml.jackson.annotation.JsonTypeName;
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import org.gcube.com.fasterxml.jackson.databind.DeserializationFeature;
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import org.gcube.com.fasterxml.jackson.databind.JavaType;
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import org.gcube.com.fasterxml.jackson.databind.ObjectMapper;
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import org.gcube.informationsystem.base.reference.Element;
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import org.gcube.informationsystem.types.impl.TypeImpl;
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import org.gcube.informationsystem.types.reference.Type;
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import org.gcube.informationsystem.types.reference.entities.EntityType;
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import org.gcube.informationsystem.types.reference.entities.FacetType;
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import org.gcube.informationsystem.types.reference.entities.ResourceType;
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import org.gcube.informationsystem.types.reference.properties.LinkedEntity;
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import org.gcube.informationsystem.types.reference.properties.PropertyDefinition;
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import org.gcube.informationsystem.types.reference.properties.PropertyType;
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import org.gcube.informationsystem.types.reference.relations.ConsistsOfType;
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import org.gcube.informationsystem.types.reference.relations.IsRelatedToType;
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import org.gcube.informationsystem.types.reference.relations.RelationType;
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/**
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* @author Luca Frosini (ISTI - CNR)
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*/
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public class TypeMapper {
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private final static String NAME = "NAME";
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protected static final 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.registerSubtypes(Type.class);
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mapper.registerSubtypes(EntityType.class);
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mapper.registerSubtypes(ResourceType.class);
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mapper.registerSubtypes(FacetType.class);
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mapper.registerSubtypes(RelationType.class);
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mapper.registerSubtypes(IsRelatedToType.class);
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mapper.registerSubtypes(ConsistsOfType.class);
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mapper.registerSubtypes(PropertyType.class);
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mapper.registerSubtypes(PropertyDefinition.class);
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mapper.registerSubtypes(LinkedEntity.class);
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// TODO
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// mapper.registerSubtypes(LinkedResource.class);
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// mapper.registerSubtypes(LinkedFacet.class);
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}
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public static String serializeTypeDefinition(Type type) throws Exception{
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String json = mapper.writeValueAsString(type);
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return json;
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}
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public static Type deserializeTypeDefinition(String json) throws Exception{
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Type type = mapper.readValue(json, Type.class);
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return type;
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}
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public static String serializeTypeDefinitions(List<Type> typeDefinitions) throws Exception{
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JavaType javaType = mapper.getTypeFactory().constructCollectionType(List.class, Type.class);
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return mapper.writerFor(javaType).writeValueAsString(typeDefinitions);
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}
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public static List<Type> deserializeTypeDefinitions(String json) throws Exception{
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JavaType javaType = mapper.getTypeFactory().constructCollectionType(ArrayList.class, Type.class);
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return mapper.readValue(json, javaType);
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}
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// TODO move somewhere else, probably in Element
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public static <E extends Element> Type createTypeDefinition(Class<E> clz) {
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Type type = TypeImpl.getInstance(clz);
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return type;
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}
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public static <E extends Element> String serializeType(Class<E> clz) throws Exception{
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Type type = createTypeDefinition(clz);
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return serializeTypeDefinition(type);
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}
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public static String getType(Class<? extends Element> clz){
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if(clz.isAnnotationPresent(JsonTypeName.class)) {
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JsonTypeName jsonTypeName = clz.getAnnotation(JsonTypeName.class);
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return jsonTypeName.value();
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}
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return getStaticStringFieldByName(clz, NAME, clz.getSimpleName());
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}
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public static String getStaticStringFieldByName(Class<? extends Element> clz, String fieldName, String defaultValue){
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Field field;
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try {
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field = clz.getDeclaredField(fieldName);
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field.setAccessible(true);
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return (String) field.get(null);
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} catch (NoSuchFieldException | SecurityException | IllegalArgumentException | IllegalAccessException e) {
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return defaultValue;
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}
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}
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}
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