Java tutorial
/* * Copyright (C) 2016 Fraunhofer Institut IOSB, Fraunhoferstr. 1, D 76131 * Karlsruhe, Germany. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package de.fraunhofer.iosb.ilt.sta.deserialize; import com.fasterxml.jackson.core.JsonParser; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.databind.DeserializationContext; import com.fasterxml.jackson.databind.JsonNode; import com.fasterxml.jackson.databind.deser.std.StdDeserializer; import de.fraunhofer.iosb.ilt.sta.model.ext.TimeInstant; import de.fraunhofer.iosb.ilt.sta.model.ext.TimeInterval; import de.fraunhofer.iosb.ilt.sta.model.ext.TimeValue; import java.io.IOException; /** * Helper for deserialization of TimeValue objects from JSON. May not work properly in every case as deciding wether * input is a TimeInstant or a TimeInterval is based on exceptions while parsing * * @author jab */ public class TimeValueDeserializer extends StdDeserializer<TimeValue> { public TimeValueDeserializer() { super(TimeValue.class); } @Override public TimeValue deserialize(JsonParser jp, DeserializationContext dc) throws IOException, JsonProcessingException { TimeValue result; JsonNode node = jp.getCodec().readTree(jp); try { result = TimeInstant.parse(node.asText()); } catch (Exception e) { result = TimeInterval.parse(node.asText()); } return result; } }