Jabit/repositories/src/main/java/ch/dissem/bitmessage/repository/JdbcHelper.java

55 lines
1.8 KiB
Java

/*
* Copyright 2015 Christian Basler
*
* 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 ch.dissem.bitmessage.repository;
import ch.dissem.bitmessage.entity.Streamable;
import ch.dissem.bitmessage.entity.payload.ObjectType;
import ch.dissem.bitmessage.exception.ApplicationException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.Collection;
import static ch.dissem.bitmessage.utils.Strings.hex;
/**
* Helper class that does Flyway migration, provides JDBC connections and some helper methods.
*/
public abstract class JdbcHelper {
private static final Logger LOG = LoggerFactory.getLogger(JdbcHelper.class);
protected final JdbcConfig config;
protected JdbcHelper(JdbcConfig config) {
this.config = config;
}
public static void writeBlob(PreparedStatement ps, int parameterIndex, Streamable data) throws SQLException, IOException {
if (data == null) {
ps.setBytes(parameterIndex, null);
} else {
ByteArrayOutputStream os = new ByteArrayOutputStream();
data.write(os);
ps.setBytes(parameterIndex, os.toByteArray());
}
}
}