001/*
002 * Copyright 2021 Global Biodiversity Information Facility (GBIF)
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.gbif.dwc.terms.jackson;
017
018import org.gbif.dwc.terms.Term;
019import org.gbif.dwc.terms.TermFactory;
020
021import java.io.IOException;
022
023import com.fasterxml.jackson.core.JsonParser;
024import com.fasterxml.jackson.core.JsonToken;
025import com.fasterxml.jackson.databind.DeserializationContext;
026import com.fasterxml.jackson.databind.JsonDeserializer;
027import com.fasterxml.jackson.databind.JsonMappingException;
028
029/**
030 * A json deserializer that turns full qualified term names into dwc terms instances.
031 */
032public class TermDeserializer extends JsonDeserializer<Term> {
033
034  private final TermFactory factory = TermFactory.instance();
035
036  @Override
037  public Term deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException {
038    if (jp.getCurrentToken() == JsonToken.VALUE_STRING) {
039      return factory.findTerm(jp.getText());
040    }
041    throw JsonMappingException.from(jp, "Expected JSON String");
042  }
043}