/*
 * Copyright 2008-2009 the original author or authors.
 *
 * 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 net.hasor.db.types.handler;
import java.io.ByteArrayInputStream;
import java.sql.*;

/**
 * clob.free should be called.
 * @author Clinton Begin
 */
public class BlobBytesTypeHandler extends AbstractTypeHandler<byte[]> {
    @Override
    public void setNonNullParameter(PreparedStatement ps, int i, byte[] parameter, JDBCType jdbcType) throws SQLException {
        ps.setBlob(i, new ByteArrayInputStream(parameter));
    }

    @Override
    public byte[] getNullableResult(ResultSet rs, String columnName) throws SQLException {
        Blob blob = rs.getBlob(columnName);
        byte[] returnValue = null;
        if (null != blob) {
            returnValue = blob.getBytes(1, (int) blob.length());
        }
        return returnValue;
    }

    @Override
    public byte[] getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
        Blob blob = rs.getBlob(columnIndex);
        if (blob == null) {
            return null;
        }
        try {
            return blob.getBytes(1, (int) blob.length());
        } finally {
            blob.free();
        }
    }

    @Override
    public byte[] getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
        Blob blob = cs.getBlob(columnIndex);
        if (blob == null) {
            return null;
        }
        try {
            return blob.getBytes(1, (int) blob.length());
        } finally {
            blob.free();
        }
    }
}