cl.niclabs.tscrypto.common.datatypes.BigIntegerBase64TypeAdapter.java Source code

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Here is the source code for cl.niclabs.tscrypto.common.datatypes.BigIntegerBase64TypeAdapter.java

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/*
Copyright 2013 NIC Chile Research Labs
This file is part of TsCrypto.
    
TsCrypto is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
TsCrypto 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 General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with TsCrypto.  If not, see <http://www.gnu.org/licenses/>.
 */

package cl.niclabs.tscrypto.common.datatypes;

import java.lang.reflect.Type;
import java.math.BigInteger;

import org.apache.commons.codec.binary.Base64;

import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;

public class BigIntegerBase64TypeAdapter implements JsonSerializer<BigInteger>, JsonDeserializer<BigInteger> {

    @Override
    public JsonElement serialize(BigInteger src, Type typeOfSrc, JsonSerializationContext context) {
        return new JsonPrimitive(new String(Base64.encodeBase64(src.toByteArray())));
    }

    @Override
    public BigInteger deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
            throws JsonParseException {
        return new BigInteger(Base64.decodeBase64(json.getAsString()));
    }
}