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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.database.schema.internal.callable;
import java.sql.DatabaseMetaData;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.eclipse.osee.database.schema.DatabaseCallable;
import org.eclipse.osee.database.schema.SchemaOptions;
import org.eclipse.osee.database.schema.SchemaResourceProvider;
import org.eclipse.osee.database.schema.internal.data.ColumnMetadata;
import org.eclipse.osee.database.schema.internal.data.ConstraintElement;
import org.eclipse.osee.database.schema.internal.data.ForeignKey;
import org.eclipse.osee.database.schema.internal.data.IndexElement;
import org.eclipse.osee.database.schema.internal.data.ReferenceClause;
import org.eclipse.osee.database.schema.internal.data.SchemaData;
import org.eclipse.osee.database.schema.internal.data.SchemaXmlParser;
import org.eclipse.osee.database.schema.internal.data.TableElement;
import org.eclipse.osee.database.schema.internal.data.TableElement.TableDescriptionFields;
import org.eclipse.osee.framework.core.exception.OseeExceptions;
import org.eclipse.osee.framework.database.IOseeDatabaseService;
import org.eclipse.osee.framework.database.core.OseeConnection;
import org.eclipse.osee.framework.jdk.core.type.OseeCoreException;
import org.eclipse.osee.framework.jdk.core.util.Strings;
import org.eclipse.osee.logger.Log;
/**
* @author Roberto E. Escobar
*/
public class LoadUserSchemasCallable extends DatabaseCallable<Object> {
private final Map<String, SchemaData> schemas;
private final SchemaResourceProvider provider;
private final SchemaOptions options;
public LoadUserSchemasCallable(Log logger, IOseeDatabaseService dbService, Map<String, SchemaData> schemas, SchemaResourceProvider provider, SchemaOptions options) {
super(logger, dbService);
this.schemas = schemas;
this.provider = provider;
this.options = options;
}
private DatabaseMetaData getMetaData() throws OseeCoreException {
OseeConnection connection = getDatabaseService().getConnection();
try {
return connection.getMetaData();
} finally {
connection.close();
}
}
@Override
public Object call() throws Exception {
SchemaXmlParser parser = new SchemaXmlParser(getLogger());
parser.parse(provider.getSchemaResources(), schemas);
if (!options.isUseFileSpecifiedSchemas()) {
try {
DatabaseMetaData meta = getMetaData();
if (meta != null) {
String userName = meta.getUserName();
if (Strings.isValid(userName)) {
int index = userName.indexOf('@');
if (index > 1) {
userName = userName.substring(0, index);
}
Map<String, SchemaData> newData = useUserNameAsSchema(userName.toUpperCase(), schemas);
schemas.clear();
schemas.putAll(newData);
}
}
} catch (SQLException ex) {
OseeExceptions.wrapAndThrow(ex);
}
}
if (options.isTableDataSpaceValid()) {
for (SchemaData schemaData : schemas.values()) {
schemaData.setTableDataSpaceName(options.getTableDataSpace());
}
}
if (options.isIndexDataSpaceValid()) {
for (SchemaData schemaData : schemas.values()) {
schemaData.setIndexDataSpaceName(options.getIndexDataSpace());
}
}
return null;
}
private Map<String, SchemaData> useUserNameAsSchema(String userName, Map<String, SchemaData> userSchemas) {
Map<String, SchemaData> newData = new HashMap<String, SchemaData>();
SchemaData newSchemaData = new SchemaData();
Set<String> keys = userSchemas.keySet();
for (String key : keys) {
SchemaData schemaData = userSchemas.get(key);
List<TableElement> tables = schemaData.getTablesOrderedByDependency();
for (TableElement table : tables) {
TableElement newTable = useUserNameAsSchemaForTable(userName, table);
newSchemaData.addTableDefinition(newTable);
}
}
newData.put(userName, newSchemaData);
return newData;
}
private TableElement useUserNameAsSchemaForTable(String userName, TableElement table) {
TableElement newTable = new TableElement();
Map<TableDescriptionFields, String> tableDescription = table.getDescription();
Map<String, ColumnMetadata> columns = table.getColumns();
List<ConstraintElement> constraints = table.getConstraints();
List<ForeignKey> foreignKeys = table.getForeignKeyConstraints();
List<IndexElement> indexElements = table.getIndexData();
TableDescriptionFields[] descriptors = TableDescriptionFields.values();
for (TableDescriptionFields field : descriptors) {
String value = tableDescription.get(field);
if (field.equals(TableDescriptionFields.schema)) {
value = userName;
}
if (Strings.isValid(value)) {
newTable.addTableDescription(field, value);
}
}
Set<String> columnKeys = columns.keySet();
for (String key : columnKeys) {
newTable.addColumn(columns.get(key));
}
for (ConstraintElement constraint : constraints) {
constraint.setSchema(userName);
newTable.addConstraint(constraint);
}
for (ForeignKey constraint : foreignKeys) {
constraint.setSchema(userName);
List<ReferenceClause> references = constraint.getReferences();
for (ReferenceClause clause : references) {
clause.setSchema(userName);
}
newTable.addConstraint(constraint);
}
for (IndexElement indexElement : indexElements) {
newTable.addIndexData(indexElement);
}
return newTable;
}
}
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