org.hyperledger.jackson.ScriptDeserializer.java Source code

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Here is the source code for org.hyperledger.jackson.ScriptDeserializer.java

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/**
 * 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 org.hyperledger.jackson;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.deser.std.StdScalarDeserializer;
import org.hyperledger.common.Script;

import java.io.IOException;
import java.util.Base64;

public class ScriptDeserializer extends StdScalarDeserializer<Script> {
    protected ScriptDeserializer() {
        super(Script.class);
    }

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

            return new Script(Base64.getDecoder().decode(scriptString));
        }

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