/*
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* Radiozentrale - Webradio App
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* Copyright (C) 2018 Ulrich Hilger, http://uhilger.de
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see http://www.gnu.org/licenses/
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*/
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package de.uhilger.radiozentrale.api;
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import de.uhilger.baselink.GenericRecord;
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import de.uhilger.baselink.PersistenceManager;
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import de.uhilger.radiozentrale.daten.Sender;
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import de.uhilger.radiozentrale.web.Initialiser;
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import java.sql.Connection;
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import java.util.List;
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/**
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*
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*/
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public class SenderApi extends Api {
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public static final String SQL_GET_SENDER = "getSender";
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public static final String SQL_GET_NEXT_KEY = "getNextKey";
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public static final String SQL_INCREMENT_KEY = "incrementKey";
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public static final String KEY_SENDER_ID = "sender_id";
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public Sender neuerSender(Sender sender) {
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Sender neuerSender = null;
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PersistenceManager db = getDb();
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Connection c = db.getConnection();
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List<List<String>> list = db.select(getSql(SQL_GET_NEXT_KEY), GenericRecord.WITHOUT_BLOBS, KEY_SENDER_ID);
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if(list != null && list.size() > 1) {
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int nextKey = Integer.parseInt(list.get(1).get(0)); // erster Datensatz ist Ueberschrift
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db.startTransaction(c);
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db.execute(getSql(SQL_INCREMENT_KEY), nextKey+1, KEY_SENDER_ID, nextKey);
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sender.setId(nextKey);
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Object o = getDb().insert(sender, getMapper(Initialiser.MP_SENDER));
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if(o instanceof Sender) {
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neuerSender = (Sender) o;
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db.commit(c);
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} else {
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db.rollback(c);
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}
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}
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return neuerSender;
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}
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public List senderliste() {
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return getDb().select(getSql(SQL_GET_SENDER), getMapper(Initialiser.MP_SENDER));
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}
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}
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