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/*
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* SONEWS News Server
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* see AUTHORS for the list of contributors
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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 org.sonews.storage.impl;
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import java.sql.SQLException;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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import org.sonews.storage.Storage;
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import org.sonews.storage.StorageBackendException;
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import org.sonews.storage.StorageProvider;
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/**
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*
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* @author Christian Lins
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* @since sonews/1.1
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*/
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public class HSQLDBProvider implements StorageProvider {
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protected static final Map<Thread, HSQLDB> instances =
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new ConcurrentHashMap<Thread, HSQLDB>();
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@Override
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public boolean isSupported(String uri) {
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return uri.startsWith("jdbc:hsqldb");
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}
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@Override
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public Storage storage(Thread thread) throws StorageBackendException {
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try {
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if (!instances.containsKey(Thread.currentThread())) {
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HSQLDB db = new HSQLDB();
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db.arise();
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instances.put(Thread.currentThread(), db);
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return db;
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} else {
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return instances.get(Thread.currentThread());
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}
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} catch (SQLException ex) {
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throw new StorageBackendException(ex);
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}
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}
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}
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