com.wealdtech.jackson.modules.PeriodDeserializer.java Source code

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Here is the source code for com.wealdtech.jackson.modules.PeriodDeserializer.java

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/*
 * Copyright 2012 - 2014 Weald Technology Trading Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the License for the specific language governing permissions and limitations under the License.
 */

package com.wealdtech.jackson.modules;

import java.io.IOException;

import org.joda.time.Period;
import org.joda.time.format.ISOPeriodFormat;
import org.joda.time.format.PeriodFormatter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.ObjectCodec;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonNode;

public class PeriodDeserializer extends JsonDeserializer<Period> {
    private static final Logger LOGGER = LoggerFactory.getLogger(PeriodDeserializer.class);
    private static PeriodFormatter formatter = ISOPeriodFormat.standard();

    @Override
    public Period deserialize(final JsonParser jsonParser, final DeserializationContext deserializationContext)
            throws IOException {
        final ObjectCodec oc = jsonParser.getCodec();
        final JsonNode node = oc.readTree(jsonParser);

        Period result = null;
        try {
            result = formatter.parsePeriod(node.textValue());
        } catch (IllegalArgumentException iae) {
            LOGGER.warn("Attempt to deserialize invalid period {}", node.textValue());
            throw new IOException("Invalid period value", iae);
        }
        return result;
    }
}