com.indragie.cmput301as1.ExpenseItemJSONSerializer.java Source code

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Here is the source code for com.indragie.cmput301as1.ExpenseItemJSONSerializer.java

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/* 
 * Copyright (C) 2015 Indragie Karunaratne
 * 
 *  This program 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.
 *  
 *  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.indragie.cmput301as1;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Type;
import java.util.Date;

import org.joda.money.Money;

import android.net.Uri;
import android.util.Base64;

import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;

/**
 * Serializes an {@link ExpenseItem} to JSON.
 */
public class ExpenseItemJSONSerializer implements JsonSerializer<ExpenseItem> {

    /* (non-Javadoc)
     * @see com.google.gson.JsonSerializer#serialize(java.lang.Object, java.lang.reflect.Type, com.google.gson.JsonSerializationContext)
     */
    @Override
    public JsonElement serialize(ExpenseItem src, Type typeOfSrc, JsonSerializationContext context) {
        JsonObject obj = new JsonObject();
        obj.addProperty("name", src.getName());
        obj.addProperty("description", src.getDescription());
        obj.addProperty("category", src.getCategory());
        obj.addProperty("incomplete", src.isIncomplete());
        obj.add("amount", context.serialize(src.getAmount(), Money.class));
        obj.add("date", context.serialize(src.getDate(), Date.class));

        Uri receiptUri = src.getReceiptUri();
        if (receiptUri != null) {
            InputStream inputStream;
            try {
                inputStream = new FileInputStream(receiptUri.getPath());
                byte[] buffer = new byte[inputStream.available()];
                inputStream.read(buffer);
                inputStream.close();

                String base64Str = Base64.encodeToString(buffer, Base64.DEFAULT);
                obj.addProperty("receipt_base64", base64Str);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return obj;
    }
}