/*
* The MIT License
*
* Copyright 2014 noko
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package net.nokok.twitduke.core.io;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.util.Optional;
import twitter4j.auth.AccessToken;
/**
* AccessTokenをデシリアライズする事によって読み込むクラスです
*
*/
class AccessTokenDeserializer implements Reader<AccessToken> {
private final String PATH;
/**
* 指定したパスに保存されたアクセストークンをデシリアライズするAccessTokenDeserializerを構築します
*
* @param path アクセストークンのパス
*/
public AccessTokenDeserializer(String path) {
this.PATH = path;
}
@Override
public Optional<AccessToken> read() {
try (ObjectInputStream objectInputStream = new ObjectInputStream(new FileInputStream(PATH))) {
AccessToken mayBeAccessToken = (AccessToken) objectInputStream.readObject();
return Optional.of(mayBeAccessToken);
} catch (ClassNotFoundException | IOException e) {
return Optional.empty();
}
}
}