/
NuoDbDdlReader.java
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/
NuoDbDdlReader.java
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/*
* 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.jumpmind.db.platform.nuodb;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import org.jumpmind.db.model.Column;
import org.jumpmind.db.model.ForeignKey;
import org.jumpmind.db.model.IIndex;
import org.jumpmind.db.model.Reference;
import org.jumpmind.db.model.Table;
import org.jumpmind.db.model.Trigger;
import org.jumpmind.db.model.Trigger.TriggerType;
import org.jumpmind.db.platform.AbstractJdbcDdlReader;
import org.jumpmind.db.platform.DatabaseMetaDataWrapper;
import org.jumpmind.db.platform.IDatabasePlatform;
import org.jumpmind.db.sql.ISqlRowMapper;
import org.jumpmind.db.sql.ISqlTemplate;
import org.jumpmind.db.sql.JdbcSqlTemplate;
import org.jumpmind.db.sql.Row;
/*
* Reads a database model from a MySql database.
*/
public class NuoDbDdlReader extends AbstractJdbcDdlReader {
protected static Map<String,String> columnNames;
static {
columnNames = mapNames();
}
public NuoDbDdlReader(IDatabasePlatform platform){
super(platform);
setDefaultCatalogPattern(null);
setDefaultSchemaPattern(null);
setDefaultTablePattern(null);
}
protected static Map<String,String> mapNames(){
Map<String,String> values = new HashMap<String,String>();
values.put("TABLE_NAME", "TABLENAME");
values.put("TABLE_TYPE", "TYPE");
values.put("TABLE_CAT", "TABLE_CAT");
values.put("TABLE_SCHEM", "SCHEMA");
values.put("REMARKS", "REMARKS");
values.put("COLUMN_DEF", "COLUMN_DEF");
values.put("COLUMN_DEFAULT", "DEFAULTVALUE");
values.put("COLUMN_NAME", "FIELD");
values.put("TYPE_NAME", "TYPE_NAME");
values.put("DATA_TYPE", "DATA_TYPE");
values.put("NUM_PREC_RADIX", "NUM_PREC_RADIX");
values.put("DECIMAL_DIGITS", "SCALE");
values.put("COLUMN_SIZE", "LENGTH");
values.put("IS_NULLABLE", "IS_NULLABLE");
values.put("IS_AUTOINCREMENT", "IS_AUTOINCREMENT");
values.put("PK_NAME", "PK_NAME");
values.put("PKTABLE_NAME", "PKTABLE_NAME");
values.put("FKTABLE_NAME", "FKTABLE_NAME");
values.put("KEY_SEQ", "KEY_SEQ");
values.put("FK_NAME", "FOREIGNKEYNAME");
values.put("PKCOLUMN_NAME", "PKCOLUMN_NAME");
values.put("FKCOLUMN_NAME", "FKCOLUMN_NAME");
values.put("INDEX_NAME", "INDEXNAME");
values.put("NON_UNIQUE", "NON_UNIQUE");
values.put("ORDINAL_POSITION", "POSITION");
values.put("TYPE", "INDEXTYPE");
return values;
}
@Override
protected String getName(String defaultName){
return columnNames.get(defaultName);
}
@Override
protected String getResultSetSchemaName() {
return super.getResultSetSchemaName();
}
@Override
protected Table readTable(Connection connection, DatabaseMetaDataWrapper metaData,
Map<String, Object> values) throws SQLException {
Table table = super.readTable(connection, metaData, values);
if (table != null) {
determineAutoIncrementFromResultSetMetaData(connection, table,
table.getColumns());
}
return table;
}
@Override
protected Column readColumn(DatabaseMetaDataWrapper metaData, Map<String, Object> values)
throws SQLException {
Column column = super.readColumn(metaData, values);
// make sure the defaultvalue is null when an empty is returned.
if ("".equals(column.getDefaultValue())) {
column.setDefaultValue(null);
}
if (column.getJdbcTypeName().equalsIgnoreCase("enum")) {
ISqlTemplate template = platform.getSqlTemplate();
String unParsedEnums = template.queryForString("SELECT SUBSTRING(ENUMERATION, 2, LENGTH(ENUMERATION)-2) FROM SYSTEM.FIELDS"
+ " WHERE SCHEMA=? AND TABLENAME=? AND FIELD=?", metaData.getCatalog(), (String) values.get("TABLENAME"), column.getName());
if (unParsedEnums != null) {
String[] parsedEnums = unParsedEnums.split("^");
column.setEnumValues(parsedEnums);
}
}
return column;
}
@Override
protected boolean isInternalPrimaryKeyIndex(Connection connection,
DatabaseMetaDataWrapper metaData, Table table, IIndex index) {
return ((table.getName()).toUpperCase() + "..PRIMARY_KEY").equals(index.getName());
}
@Override
protected boolean isInternalForeignKeyIndex(Connection connection,
DatabaseMetaDataWrapper metaData, Table table, ForeignKey fk, IIndex index) {
return getPlatform().getDdlBuilder().getForeignKeyName(table, fk).equals(index.getName());
}
@Override
protected Collection<ForeignKey> readForeignKeys(Connection connection,
DatabaseMetaDataWrapper metaData, String tableName) throws SQLException {
Map<String, ForeignKey> fks = new LinkedHashMap<String, ForeignKey>();
ResultSet fkData = null;
try {
PreparedStatement ps = connection.prepareStatement(
"SELECT f2.FIELD AS REFERENCED_COLUMN_NAME, t2.TABLENAME AS REFERENCED_TABLE_NAME, f.FIELD AS COLUMN_NAME, \"POSITION\", FOREIGNKEYNAME AS CONSTRAINT_NAME " +
"FROM \"SYSTEM\".FOREIGNKEYS AS fk "+
"INNER JOIN SYSTEM.TABLES AS t ON t.TABLEID = fk.FOREIGNTABLEID "+
"INNER JOIN SYSTEM.TABLES AS t2 ON t2.TABLEID = fk.PRIMARYTABLEID "+
"INNER JOIN SYSTEM.FIELDS AS f ON f.FIELDID = fk.FOREIGNFIELDID AND f.TABLENAME = t.TABLENAME AND f.\"SCHEMA\"= t.\"SCHEMA\" " +
"INNER JOIN SYSTEM.FIELDS AS f2 ON f2.FIELDID = fk.PRIMARYFIELDID AND f2.TABLENAME = t2.TABLENAME AND f2.\"SCHEMA\" = t2.\"SCHEMA\" " +
"WHERE t.TABLENAME = ?");
ps.setString(1, tableName);
fkData = ps.executeQuery();
while (fkData.next()) {
String fkName = fkData.getString(5);
ForeignKey fk = (ForeignKey) fks.get(fkName);
if (fk == null) {
fk = new ForeignKey(fkName);
fk.setForeignTableName(fkData.getString(2));
fks.put(fkName, fk);
}
Reference ref = new Reference();
ref.setForeignColumnName(fkData.getString(1));
ref.setLocalColumnName(fkData.getString(3));
ref.setSequenceValue(fkData.getInt(4));
fk.addReference(ref);
}
} finally {
close(fkData);
}
return fks.values();
}
public List<Trigger> getTriggers(final String catalog, final String schema,
final String tableName) {
List<Trigger> triggers = new ArrayList<Trigger>();
log.debug("Reading triggers for: " + tableName);
JdbcSqlTemplate sqlTemplate = (JdbcSqlTemplate) platform
.getSqlTemplate();
String sql = "SELECT "
+ "TRIGGERNAME, "
+ "SCHEMA, "
+ "TRIGGER_TYPE, "
+ "TABLENAME, "
+ "TRIG.* "
+ "FROM SYSTEM.TRIGGERS AS TRIG "
+ "WHERE TABLENAME=? and SCHEMA=? ;";
triggers = sqlTemplate.query(sql, new ISqlRowMapper<Trigger>() {
public Trigger mapRow(Row row) {
Trigger trigger = new Trigger();
trigger.setName(row.getString("TRIGGERNAME"));
trigger.setSchemaName(row.getString("SCHEMA"));
trigger.setTableName(row.getString("TABLENAME"));
trigger.setEnabled(true);
String triggerType = row.getString("TRIGGER_TYPE");
if (triggerType.equals("DELETE")
|| triggerType.equals("INSERT")
|| triggerType.equals("UPDATE")) {
trigger.setTriggerType(TriggerType.valueOf(triggerType));
}
trigger.setMetaData(row);
return trigger;
}
}, tableName, catalog);
return triggers;
}
@Override
protected Integer mapUnknownJdbcTypeForColumn(Map<String, Object> values) {
String tableName = (String) values.get("TABLENAME");
String fieldName = (String) values.get("FIELD");
Integer type = (Integer) values.get("DATA_TYPE");
if (type != null && type.intValue() == Types.CLOB) {
// XML longvarchar becoms longvarchar on Column but becomes clob in database
return Types.LONGVARCHAR;
}else {
return super.mapUnknownJdbcTypeForColumn(values);
}
}
}