| /* |
| |
| Derby - Class org.apache.derby.impl.sql.LanguageDbPropertySetter |
| |
| 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.apache.derby.impl.sql; |
| |
| import org.apache.derby.iapi.services.property.PropertySetCallback; |
| import org.apache.derby.iapi.services.property.PropertyUtil; |
| import org.apache.derby.iapi.reference.Property; |
| import org.apache.derby.iapi.reference.SQLState; |
| import org.apache.derby.iapi.services.daemon.Serviceable; |
| import org.apache.derby.shared.common.sanity.SanityManager; |
| import org.apache.derby.iapi.services.context.Context; |
| import org.apache.derby.iapi.services.context.ContextService; |
| import org.apache.derby.iapi.error.StandardException; |
| import org.apache.derby.iapi.sql.conn.LanguageConnectionContext; |
| import org.apache.derby.iapi.sql.dictionary.DataDictionary; |
| import org.apache.derby.iapi.store.access.TransactionController; |
| import java.security.AccessController; |
| import java.security.PrivilegedAction; |
| import java.io.Serializable; |
| import java.util.Dictionary; |
| |
| /** |
| * A class to handle setting language database properties |
| */ |
| public class LanguageDbPropertySetter implements PropertySetCallback |
| { |
| public void init(boolean dbOnly, Dictionary p) { |
| // not called yet ... |
| } |
| /** @exception StandardException Thrown on error. */ |
| public boolean validate |
| ( |
| String key, |
| Serializable value, |
| Dictionary p |
| ) throws StandardException |
| { |
| // Can't change the dictionary version manually. That could make the database |
| // unbootable. See DERBY-5838. |
| if ( key.trim().equals( DataDictionary.CORE_DATA_DICTIONARY_VERSION ) ) |
| { |
| throw StandardException.newException( SQLState.PROPERTY_UNSUPPORTED_CHANGE, key, value ); |
| } |
| |
| // Disallow changing sqlAuthorization from true to false or null after |
| // switching to Standard authorization |
| if (key.trim().equals(Property.SQL_AUTHORIZATION_PROPERTY)) |
| { |
| LanguageConnectionContext lcc = (LanguageConnectionContext) |
| getContext(LanguageConnectionContext.CONTEXT_ID); |
| |
| if (lcc.usesSqlAuthorization() && !Boolean.valueOf((String)value).booleanValue()) |
| throw StandardException.newException(SQLState.PROPERTY_UNSUPPORTED_CHANGE, |
| key, value); |
| } |
| |
| if (key.equals(Property.LANGUAGE_STALE_PLAN_CHECK_INTERVAL)) { |
| PropertyUtil.intPropertyValue( |
| Property.LANGUAGE_STALE_PLAN_CHECK_INTERVAL, |
| value, |
| Property.MIN_LANGUAGE_STALE_PLAN_CHECK_INTERVAL, |
| Integer.MAX_VALUE, |
| Property.DEFAULT_LANGUAGE_STALE_PLAN_CHECK_INTERVAL |
| ); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| public Serviceable apply |
| ( |
| String key, |
| Serializable value, |
| Dictionary p |
| ) |
| { |
| return null; |
| } |
| |
| public Serializable map |
| ( |
| String key, |
| Serializable value, |
| Dictionary p |
| ) |
| { |
| return null; |
| } |
| /** |
| * Privileged lookup of a Context. Must be private so that user code |
| * can't call this entry point. |
| */ |
| private static Context getContext( final String contextID ) |
| { |
| if ( System.getSecurityManager() == null ) |
| { |
| return ContextService.getContext( contextID ); |
| } |
| else |
| { |
| return AccessController.doPrivileged |
| ( |
| new PrivilegedAction<Context>() |
| { |
| public Context run() |
| { |
| return ContextService.getContext( contextID ); |
| } |
| } |
| ); |
| } |
| } |
| |
| } |