package org.apache.ddlutils.platform.mckoi; | |
/* | |
* 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. | |
*/ | |
import java.sql.PreparedStatement; | |
import java.sql.ResultSet; | |
import java.sql.SQLException; | |
import java.util.HashMap; | |
import java.util.Map; | |
import org.apache.commons.collections.map.ListOrderedMap; | |
import org.apache.commons.logging.Log; | |
import org.apache.commons.logging.LogFactory; | |
import org.apache.ddlutils.Platform; | |
import org.apache.ddlutils.model.Column; | |
import org.apache.ddlutils.model.Table; | |
import org.apache.ddlutils.model.TypeMap; | |
import org.apache.ddlutils.platform.DatabaseMetaDataWrapper; | |
import org.apache.ddlutils.platform.JdbcModelReader; | |
/** | |
* Reads a database model from a Mckoi database. | |
* | |
* @version $Revision: $ | |
*/ | |
public class MckoiModelReader extends JdbcModelReader | |
{ | |
/** The log. */ | |
protected Log _log = LogFactory.getLog(MckoiModelReader.class); | |
/** | |
* Creates a new model reader for Mckoi databases. | |
* | |
* @param platform The platform that this model reader belongs to | |
*/ | |
public MckoiModelReader(Platform platform) | |
{ | |
super(platform); | |
setDefaultCatalogPattern(null); | |
setDefaultSchemaPattern(null); | |
} | |
/** | |
* {@inheritDoc} | |
*/ | |
protected Table readTable(DatabaseMetaDataWrapper metaData, Map values) throws SQLException | |
{ | |
// Mckoi does not currently return unique indices in the metadata so we have to query | |
// internal tables to get this info | |
final String query = | |
"SELECT uniqueColumns.column, uniqueColumns.seq_no, uniqueInfo.name" + | |
" FROM SYS_INFO.sUSRUniqueColumns uniqueColumns, SYS_INFO.sUSRUniqueInfo uniqueInfo" + | |
" WHERE uniqueColumns.un_id = uniqueInfo.id AND uniqueInfo.table = ?"; | |
final String queryWithSchema = | |
query + " AND uniqueInfo.schema = ?"; | |
Table table = super.readTable(metaData, values); | |
if (table != null) | |
{ | |
Map indices = new ListOrderedMap(); | |
PreparedStatement stmt = null; | |
try | |
{ | |
stmt = getConnection().prepareStatement(table.getSchema() == null ? query : queryWithSchema); | |
stmt.setString(1, table.getName()); | |
if (table.getSchema() != null) | |
{ | |
stmt.setString(2, table.getSchema()); | |
} | |
ResultSet resultSet = stmt.executeQuery(); | |
Map indexValues = new HashMap(); | |
indexValues.put("NON_UNIQUE", Boolean.FALSE); | |
while (resultSet.next()) | |
{ | |
indexValues.put("COLUMN_NAME", resultSet.getString(1)); | |
indexValues.put("ORDINAL_POSITION", new Short(resultSet.getShort(2))); | |
indexValues.put("INDEX_NAME", resultSet.getString(3)); | |
readIndex(metaData, indexValues, indices); | |
} | |
} | |
finally | |
{ | |
closeStatement(stmt); | |
} | |
table.addIndices(indices.values()); | |
} | |
return table; | |
} | |
/** | |
* {@inheritDoc} | |
*/ | |
protected Column readColumn(DatabaseMetaDataWrapper metaData, Map values) throws SQLException | |
{ | |
Column column = super.readColumn(metaData, values); | |
if (column.getSize() != null) | |
{ | |
if (column.getSizeAsInt() <= 0) | |
{ | |
column.setSize(null); | |
} | |
} | |
String defaultValue = column.getDefaultValue(); | |
if (defaultValue != null) | |
{ | |
if (defaultValue.toLowerCase().startsWith("nextval('") || | |
defaultValue.toLowerCase().startsWith("uniquekey('")) | |
{ | |
column.setDefaultValue(null); | |
column.setAutoIncrement(true); | |
} | |
else if (TypeMap.isTextType(column.getTypeCode())) | |
{ | |
column.setDefaultValue(unescape(column.getDefaultValue(), "'", "\\'")); | |
} | |
} | |
return column; | |
} | |
} |