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/*
* SonarQube
* Copyright (C) 2009-2017 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.db.dialect;
import com.google.common.base.Predicate;
import com.google.common.collect.Iterators;
import java.util.NoSuchElementException;
import javax.annotation.CheckForNull;
import org.apache.commons.lang.StringUtils;
import org.sonar.api.utils.MessageException;
public final class DialectUtils {
private static final Dialect[] DIALECTS = new Dialect[] {new H2(), new MySql(), new Oracle(), new PostgreSql(), new MsSql()};
private DialectUtils() {
// only static stuff
}
public static Dialect find(final String dialectId, final String jdbcConnectionUrl) {
Dialect match = StringUtils.isNotBlank(dialectId) ? findById(dialectId) : findByJdbcUrl(jdbcConnectionUrl);
if (match == null) {
throw MessageException.of("Unable to determine database dialect to use within sonar with dialect " + dialectId + " jdbc url " + jdbcConnectionUrl);
}
return match;
}
@CheckForNull
private static Dialect findByJdbcUrl(final String jdbcConnectionUrl) {
return findDialect(dialect -> dialect != null && dialect.matchesJdbcURL(StringUtils.trimToEmpty(jdbcConnectionUrl)));
}
@CheckForNull
private static Dialect findById(final String dialectId) {
return findDialect(dialect -> dialect != null && dialect.getId().equals(dialectId));
}
@CheckForNull
private static Dialect findDialect(Predicate<Dialect> predicate) {
try {
return Iterators.find(Iterators.forArray(DIALECTS), predicate);
} catch (NoSuchElementException ex) {
return null;
}
}
}
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