/*******************************************************************************
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.olingo.odata2.jpa.processor.ref.converter;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.sql.Blob;
import java.sql.SQLException;
import javax.persistence.AttributeConverter;
import javax.persistence.Converter;
import org.hsqldb.jdbc.JDBCBlob;
@Converter(autoApply = true)
public class BlobToByteConverter implements AttributeConverter<Blob, byte[]> {
@Override
public byte[] convertToDatabaseColumn(final Blob arg0) {
if (arg0 == null) {
return null;
}
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
InputStream is;
try {
is = arg0.getBinaryStream();
int b;
b = is.read();
while (b != -1) {
buffer.write(b);
b = is.read();
}
} catch (SQLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return buffer.toByteArray();
}
@Override
public Blob convertToEntityAttribute(final byte[] arg0) {
try {
if (arg0 == null) {
return null;
}
return new JDBCBlob(arg0);
} catch (SQLException e) {
e.printStackTrace();
}
return null;
}
}