ByteStringKeyDeserializer.java

/*
 * Copyright 2017 Providence Authors
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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 net.morimekta.proto.jackson.adapter;

import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.KeyDeserializer;
import net.morimekta.proto.utils.ByteStringUtil;

/**
 * Deserializes byte string map key values.
 */
public class ByteStringKeyDeserializer
        extends KeyDeserializer {
    /**
     * Instantiate deserializer.
     */
    public ByteStringKeyDeserializer() {
        super();
    }

    @Override
    public Object deserializeKey(String key, DeserializationContext ctxt) {
        return ByteStringUtil.fromBase64(key);
    }
}