com.amazonaws.services.dynamodb.datamodeling.JsonMarshaller Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of aws-java-sdk Show documentation

The Amazon Web Services SDK for Java provides Java APIs for building software on AWS' cost-effective, scalable, and reliable infrastructure products. The AWS Java SDK allows developers to code against APIs for all of Amazon's infrastructure web services (Amazon S3, Amazon EC2, Amazon SQS, Amazon Relational Database Service, Amazon AutoScaling, etc).

The newest version!

/*
 * Copyright 2011-2014 Amazon Technologies, Inc.
 *
 * 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://aws.amazon.com/apache2.0
 *
 * This file 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.amazonaws.services.dynamodb.datamodeling;

import java.io.StringReader;
import java.io.StringWriter;

import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.MappingJsonFactory;

/**
 * Simple JSON marshaller that uses Jackson mapper. It has all the limitations
 * of that library, the documentation of which is available here:
 * http://docs.codehaus.org/display/JACKSON/Home
 * 
 * @deprecated Use {@link com.amazonaws.services.dynamodbv2.datamodeling.JsonMarshaller} instead.
 */
@Deprecated
public class JsonMarshaller implements DynamoDBMarshaller {

    @Override
    public String marshall(T obj) {
        try {
            JsonFactory jsonFactory = new MappingJsonFactory();
            StringWriter output = new StringWriter();
            JsonGenerator jsonGenerator = jsonFactory.createJsonGenerator(output);
            jsonGenerator.writeObject(obj);
            return output.toString();
        } catch ( Exception e ) {
            throw new RuntimeException(e);
        }
    }

    @Override
    public T unmarshall(Class clazz, String obj) {
        try {
            JsonFactory jsonFactory = new MappingJsonFactory();
            JsonParser jsonParser = jsonFactory.createJsonParser(new StringReader(obj));
            return jsonParser.readValueAs(clazz);
        } catch ( Exception e ) {
            throw new RuntimeException(e);
        }
    }

}