Java tutorial
/** * Copyright (C) cedarsoft GmbH. * * Licensed under the GNU General Public License version 3 (the "License") * with Classpath Exception; you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.cedarsoft.org/gpl3ce * (GPL 3 with Classpath Exception) * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 3 only, as * published by the Free Software Foundation. cedarsoft GmbH designates this * particular file as subject to the "Classpath" exception as provided * by cedarsoft GmbH in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 3 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 3 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact cedarsoft GmbH, 72810 Gomaringen, Germany, * or visit www.cedarsoft.com if you need additional information or * have any questions. */ package com.cedarsoft.serialization.serializers.jackson; import com.cedarsoft.version.UnsupportedVersionException; import com.cedarsoft.version.Version; import com.cedarsoft.version.VersionException; import com.cedarsoft.version.VersionRange; import com.cedarsoft.serialization.jackson.AbstractJacksonSerializer; import com.fasterxml.jackson.core.JsonGenerator; import com.fasterxml.jackson.core.JsonParser; import com.fasterxml.jackson.core.JsonProcessingException; import org.joda.time.DateTime; import org.joda.time.format.DateTimeFormatter; import org.joda.time.format.ISODateTimeFormat; import javax.annotation.Nonnull; import javax.inject.Inject; import java.io.IOException; /** * */ public class DateTimeSerializer extends AbstractJacksonSerializer<DateTime> { @Inject public DateTimeSerializer() { super("dateTime", new VersionRange(new Version(0, 9, 0), new Version(1, 0, 0))); } @Override public void serialize(@Nonnull JsonGenerator serializeTo, @Nonnull DateTime object, @Nonnull Version formatVersion) throws IOException, VersionException, JsonProcessingException { serializeTo.writeString(createFormatter().print(object)); } @Nonnull @Override public DateTime deserialize(@Nonnull JsonParser deserializeFrom, @Nonnull Version formatVersion) throws IOException, VersionException, JsonProcessingException { assert isVersionReadable(formatVersion); String text = deserializeFrom.getText(); if (formatVersion.equals(Version.valueOf(0, 9, 0))) { return new DateTime(Long.parseLong(text)); } if (formatVersion.equals(Version.valueOf(1, 0, 0))) { return createFormatter().withOffsetParsed().parseDateTime(text); } throw new UnsupportedVersionException(formatVersion, getFormatVersionRange()); } @Override public boolean isObjectType() { return false; } @Nonnull static DateTimeFormatter createFormatter() { return ISODateTimeFormat.basicDateTime(); } }