Sample.java

/*
 * Copyright 2015 Square 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://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.squareup.dinosaurs;

import com.squareup.geology.Period;
import java.io.IOException;
import java.util.Arrays;
import okio.ByteString;

public final class Sample {
  public void run() throws IOException {
    // Create an immutable value object with the Builder API.
    Dinosaur stegosaurus = new Dinosaur.Builder()
        .name("Stegosaurus")
        .period(Period.JURASSIC)
        .length_meters(9.0)
        .mass_kilograms(5_000.0)
        .picture_urls(Arrays.asList("http://goo.gl/LD5KY5", "http://goo.gl/VYRM67"))
        .build();

    // Encode that value to bytes, and print that as base64.
    byte[] stegosaurusEncoded = Dinosaur.ADAPTER.encode(stegosaurus);
    System.out.println(ByteString.of(stegosaurusEncoded).base64());

    // Decode base64 bytes, and decode those bytes as a dinosaur.
    ByteString tyrannosaurusEncoded = ByteString.decodeBase64("Cg1UeXJhbm5vc2F1cnVzEmhodHRwOi8vdmln"
        + "bmV0dGUxLndpa2lhLm5vY29va2llLm5ldC9qdXJhc3NpY3BhcmsvaW1hZ2VzLzYvNmEvTGVnbzUuanBnL3Jldmlz"
        + "aW9uL2xhdGVzdD9jYj0yMDE1MDMxOTAxMTIyMRJtaHR0cDovL3ZpZ25ldHRlMy53aWtpYS5ub2Nvb2tpZS5uZXQv"
        + "anVyYXNzaWNwYXJrL2ltYWdlcy81LzUwL1JleHlfcHJlcGFyaW5nX2Zvcl9iYXR0bGVfd2l0aF9JbmRvbWludXNf"
        + "cmV4LmpwZxmamZmZmZkoQCEAAAAAAJC6QCgB");
    Dinosaur tyrannosaurus = Dinosaur.ADAPTER.decode(tyrannosaurusEncoded.toByteArray());

    // Print both of our dinosaurs.
    System.out.println(stegosaurus.name + " is " + stegosaurus.length_meters + " meters long!");
    System.out.println(tyrannosaurus.name + " weighs " + tyrannosaurus.mass_kilograms + " kilos!");
  }

  public static void main(String[] args) throws IOException {
    new Sample().run();
  }
}