org.apache.lucene.store.jdbc.index.oracle.OracleFileJdbcIndexOutput Maven / Gradle / Ivy
/*
* Copyright 2004-2009 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 org.apache.lucene.store.jdbc.index.oracle;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import org.apache.lucene.store.jdbc.index.FileJdbcIndexOutput;
import org.apache.lucene.store.jdbc.support.JdbcTemplate;
/**
* A specialized Oracle version that works (through reflection) with
* Oracle 9i/8i specific blob API for blobs bigger than 4k.
*
* @author kimchy
*/
public class OracleFileJdbcIndexOutput extends FileJdbcIndexOutput {
public void close() throws IOException {
flush();
final long length = length();
doBeforeClose();
String sqlInsert = OracleIndexOutputHelper.sqlInsert(jdbcDirectory.getTable());
jdbcDirectory.getJdbcTemplate().executeUpdate(sqlInsert, new JdbcTemplate.PrepateStatementAwareCallback() {
public void fillPrepareStatement(PreparedStatement ps) throws Exception {
ps.setFetchSize(1);
ps.setString(1, name);
ps.setLong(2, length);
ps.setBoolean(3, false);
}
});
String sqlUpdate = OracleIndexOutputHelper.sqlUpdate(jdbcDirectory.getTable());
jdbcDirectory.getJdbcTemplate().executeSelect(sqlUpdate,
new JdbcTemplate.ExecuteSelectCallback() {
public void fillPrepareStatement(PreparedStatement ps) throws Exception {
ps.setFetchSize(1);
ps.setString(1, name);
}
public Object execute(ResultSet rs) throws Exception {
OutputStream os = null;
try {
rs.next();
os = OracleIndexOutputHelper.getBlobOutputStream(rs);
InputStream is = openInputStream();
byte[] buffer = new byte[1000];
int bytesRead = 0;
while ((bytesRead = is.read(buffer)) != -1) {
os.write(buffer, 0, bytesRead);
}
return null;
} finally {
if (os != null) {
os.close();
}
}
}
});
doAfterClose();
}
}