| /******************************************************************************* |
| * Copyright (c) 2016 Oracle and/or its affiliates. All rights reserved. |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0 |
| * which accompanies this distribution. |
| * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html |
| * and the Eclipse Distribution License is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * Contributors: |
| * Roman Grigoriadi |
| ******************************************************************************/ |
| |
| package org.eclipse.persistence.json.bind.internal.serializer; |
| |
| import org.eclipse.persistence.json.bind.internal.JsonbContext; |
| import org.eclipse.persistence.json.bind.internal.Marshaller; |
| import org.eclipse.persistence.json.bind.model.PropertyModel; |
| import org.eclipse.persistence.json.bind.model.JsonBindingModel; |
| |
| import javax.json.bind.annotation.JsonbDateFormat; |
| import javax.json.bind.serializer.SerializationContext; |
| import javax.json.stream.JsonGenerator; |
| import java.time.Instant; |
| import java.time.temporal.TemporalAccessor; |
| import java.util.Locale; |
| |
| /** |
| * Abstract class for converting date objects from {@link java.time}. |
| * |
| * @author Roman Grigoriadi |
| */ |
| |
| public abstract class AbstractDateTimeSerializer<T extends TemporalAccessor> extends AbstractValueTypeSerializer<T> { |
| |
| |
| /** |
| * Construct serializer with its class. |
| * @param clazz class |
| */ |
| public AbstractDateTimeSerializer(Class<T> clazz, JsonBindingModel model) { |
| super(model); |
| } |
| |
| /** |
| * Serializes an object to JSON. |
| * |
| * @param obj object to serialize |
| * @param generator JSON generator to use |
| * @param ctx JSONB mapper context |
| */ |
| @Override |
| public void serialize(T obj, JsonGenerator generator, SerializationContext ctx) { |
| final JsonbContext jsonbContext = ((Marshaller) ctx).getJsonbContext(); |
| final JsonbDateFormatter formatter = jsonbContext.getComponentMatcher().getDateFormatter(model); |
| if (model instanceof PropertyModel) { |
| generator.write(((PropertyModel)model).getPropertyName(), toJson(obj, formatter, jsonbContext)); |
| } else { |
| generator.write(toJson(obj, formatter, jsonbContext)); |
| } |
| } |
| |
| public String toJson(T object, JsonbDateFormatter formatter, JsonbContext jsonbContext) { |
| if (JsonbDateFormat.TIME_IN_MILLIS.equals(formatter.getFormat())) { |
| return String.valueOf(toInstant(object).toEpochMilli()); |
| } else if (formatter.getDateTimeFormatter() != null) { |
| return formatter.getDateTimeFormatter().format(object); |
| } |
| return formatDefault(object, jsonbContext.getLocale(formatter.getLocale())); |
| } |
| |
| /** |
| * Convert java.time object to epoch milliseconds instant. Discards zone offset and zone id information. |
| * |
| * @param value date object to convert |
| * @return instant |
| */ |
| protected abstract Instant toInstant(T value); |
| |
| /** |
| * Format with default formatter for a given {@link java.time} date object. |
| * Different default formatter for each date object type is used. |
| * |
| * @param value date object |
| * @param locale locale from annotation / default not null |
| * @return formatted date obj as string |
| */ |
| protected abstract String formatDefault(T value, Locale locale); |
| |
| @Override |
| protected void serialize(T obj, JsonGenerator generator, String key, Marshaller marshaller) { |
| throw new UnsupportedOperationException("Not supported in DateTimeSerializer"); |
| } |
| |
| @Override |
| protected void serialize(T obj, JsonGenerator generator, Marshaller marshaller) { |
| throw new UnsupportedOperationException("Not supported in DateTimeSerializer"); |
| } |
| } |