/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
 */
package org.hibernate.tool.hbm2ddl;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.Reader;
import java.util.LinkedList;
import java.util.List;

import org.hibernate.internal.util.StringHelper;

Class responsible for extracting SQL statements from import script. Treads each line as a complete SQL statement. Comment lines shall start with --, // or /* character sequence.
Author:Lukasz Antoniak (lukasz dot antoniak at gmail dot com)
/** * Class responsible for extracting SQL statements from import script. Treads each line as a complete SQL statement. * Comment lines shall start with {@code --}, {@code //} or {@code /*} character sequence. * * @author Lukasz Antoniak (lukasz dot antoniak at gmail dot com) */
public class SingleLineSqlCommandExtractor implements ImportSqlCommandExtractor { @Override public String[] extractCommands(Reader reader) { BufferedReader bufferedReader = new BufferedReader( reader ); List<String> statementList = new LinkedList<String>(); try { for ( String sql = bufferedReader.readLine(); sql != null; sql = bufferedReader.readLine() ) { String trimmedSql = sql.trim(); if ( StringHelper.isEmpty( trimmedSql ) || isComment( trimmedSql ) ) { continue; } if ( trimmedSql.endsWith( ";" ) ) { trimmedSql = trimmedSql.substring( 0, trimmedSql.length() - 1 ); } statementList.add( trimmedSql ); } return statementList.toArray( new String[statementList.size()] ); } catch ( IOException e ) { throw new ImportScriptException( "Error during import script parsing.", e ); } } private boolean isComment(final String line) { return line.startsWith( "--" ) || line.startsWith( "//" ) || line.startsWith( "/*" ); } }