com.bitsofproof.dropwizard.supernode.jackson.AddressDeserializer.java Source code

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Here is the source code for com.bitsofproof.dropwizard.supernode.jackson.AddressDeserializer.java

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/*
 * Copyright 2013 bits of proof zrt.
 *
 * 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.bitsofproof.dropwizard.supernode.jackson;

import java.io.IOException;

import com.bitsofproof.supernode.api.Address;
import com.bitsofproof.supernode.common.ValidationException;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.deser.std.StdScalarDeserializer;

public class AddressDeserializer extends StdScalarDeserializer<Address> {
    protected AddressDeserializer() {
        super(Address.class);
    }

    @Override
    public Address deserialize(JsonParser jp, DeserializationContext ctxt)
            throws IOException, JsonProcessingException {
        JsonToken t = jp.getCurrentToken();
        if (t == JsonToken.VALUE_STRING) {
            try {
                String satoshiStyle = jp.getText().trim();
                if (satoshiStyle.length() == 0) {
                    return null;
                }

                return Address.fromSatoshiStyle(satoshiStyle);
            } catch (ValidationException e) {
                throw JsonMappingException.from(jp, "Error deserializing bitcoin address", e);
            }
        }

        throw ctxt.mappingException(getValueClass());
    }
}