com.google.mr4c.serialize.json.JsonDatasetBeanSerializer.java Source code

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Here is the source code for com.google.mr4c.serialize.json.JsonDatasetBeanSerializer.java

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/**
  * Copyright 2014 Google Inc. All rights reserved.
  * 
  * 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.google.mr4c.serialize.json;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;

import com.google.mr4c.serialize.bean.DatasetBeanSerializer;
import com.google.mr4c.serialize.bean.dataset.DataFileBean;
import com.google.mr4c.serialize.bean.dataset.DatasetBean;
import com.google.mr4c.serialize.bean.keys.DataKeyBean;
import com.google.mr4c.serialize.bean.metadata.MetadataEntryBean;

import java.io.IOException;
import java.io.Reader;
import java.io.Writer;

public class JsonDatasetBeanSerializer implements DatasetBeanSerializer {

    public void serializeDatasetBean(DatasetBean dataset, Writer writer) throws IOException {
        GsonBuilder builder = new GsonBuilder();
        builder.setPrettyPrinting();
        Gson gson = builder.create();
        gson.toJson(dataset, writer);
    }

    public DatasetBean deserializeDatasetBean(Reader reader) throws IOException {
        GsonBuilder builder = new GsonBuilder();
        builder.registerTypeAdapter(MetadataEntryBean.class, new MetadataEntryBeanDeserializer());
        Gson gson = builder.create();
        return gson.fromJson(reader, DatasetBean.class);
    }

    public String serializeDataFileBean(DataFileBean file) {
        GsonBuilder builder = new GsonBuilder();
        builder.setPrettyPrinting();
        Gson gson = builder.create();
        return gson.toJson(file);
    }

    public DataFileBean deserializeDataFileBean(String serializedFile) {
        GsonBuilder builder = new GsonBuilder();
        Gson gson = builder.create();
        return gson.fromJson(serializedFile, DataFileBean.class);
    }

    public String serializeDataKeyBean(DataKeyBean key) {
        GsonBuilder builder = new GsonBuilder();
        builder.setPrettyPrinting();
        Gson gson = builder.create();
        return gson.toJson(key);
    }

    public DataKeyBean deserializeDataKeyBean(String serializedKey) {
        GsonBuilder builder = new GsonBuilder();
        Gson gson = builder.create();
        return gson.fromJson(serializedKey, DataKeyBean.class);
    }

    public String getContentType() {
        return "application/json";
    }

}