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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.apache.tuscany.das.rdb.test;
import java.sql.SQLException;
import org.apache.tuscany.das.rdb.Command;
import org.apache.tuscany.das.rdb.ConfigHelper;
import org.apache.tuscany.das.rdb.DAS;
import org.apache.tuscany.das.rdb.config.Config;
import org.apache.tuscany.das.rdb.config.ConfigFactory;
import org.apache.tuscany.das.rdb.exception.OptimisticConcurrencyException;
import org.apache.tuscany.das.rdb.test.data.BookData;
import org.apache.tuscany.das.rdb.test.data.CustomerData;
import org.apache.tuscany.das.rdb.test.framework.DasTest;
import commonj.sdo.DataObject;
public class OCCTests extends DasTest {
protected void setUp() throws Exception {
super.setUp();
new BookData(getAutoConnection()).refresh();
new CustomerData(getAutoConnection()).refresh();
}
public void testAutomaticOCC() throws SQLException {
DAS das = DAS.FACTORY.createDAS(getConnection());
// Read customer with particular ID
Command select = das.createCommand("Select * from CUSTOMER where ID = 1");
DataObject root = select.executeQuery();
// Explicitly update the DB to force a collision
Command update = das.createCommand("update CUSTOMER set LASTNAME = 'Smith' where ID = 1");
update.execute();
DataObject customer = root.getDataObject("CUSTOMER[1]");
// Modify customer
customer.set("LASTNAME", "Pavick");
// Build apply changes command
try {
das.applyChanges(root);
fail("An OCCException should be thrown");
} catch (OptimisticConcurrencyException ex) {
if (!ex.getMessage().equals("An update collision occurred")) {
throw ex;
}
}
}
public void testSimpleOCC() throws SQLException {
DAS das = DAS.FACTORY.createDAS(getConfig("BooksConfig.xml"), getConnection());
// Read a book instance
Command select = das.getCommand("select book 1");
DataObject root = select.executeQuery();
DataObject book = root.getDataObject("BOOK[1]");
// Change a field to mark the instance 'dirty'
book.setInt("QUANTITY", 2);
// Explicitly change OCC column in database to force collision
Command update = das.getCommand("update book 1");
update.setParameter(1, new Integer(100));
update.execute();
// Try to apply changes and catch the expected An update collision occurred
try {
das.applyChanges(root);
fail("An OCCException should be thrown");
} catch (OptimisticConcurrencyException ex) {
if (!ex.getMessage().equals("An update collision occurred")) {
throw ex;
}
}
}
public void testManagedOCC() throws SQLException {
DAS das = DAS.FACTORY.createDAS(getConfig("ManagedBooksConfig.xml"), getConnection());
Command select = das.getCommand("select book 1");
DataObject root = select.executeQuery();
DataObject book = root.getDataObject("BOOK[1]");
// Change a field to mark the instance 'dirty'
book.setInt("QUANTITY", 2);
int occValue = book.getInt("OCC");
das.applyChanges(root);
root = select.executeQuery();
book = root.getDataObject("BOOK[1]");
assertEquals(occValue + 1, book.getInt("OCC"));
}
public void testManagedOCCFailure() throws SQLException {
DAS das = DAS.FACTORY.createDAS(getConfig("ManagedBooksConfig.xml"), getConnection());
// Read a book instance
Command select = das.getCommand("select book 1");
DataObject root = select.executeQuery();
DataObject book = root.getDataObject("BOOK[1]");
// Change a field to mark the instance 'dirty'
book.setInt("QUANTITY", 2);
DAS das2 = DAS.FACTORY.createDAS(getConfig("ManagedBooksConfig.xml"), getConnection());
// Read a book instance
Command select2 = das2.getCommand("select book 1");
DataObject root2 = select2.executeQuery();
DataObject book2 = root2.getDataObject("BOOK[1]");
// Change a field to mark the instance 'dirty'
book2.setInt("QUANTITY", 5);
das2.applyChanges(root2);
// Try to apply changes and catch the expecetd An update collision occurred
try {
das.applyChanges(root);
fail("An OCCException should be thrown");
} catch (OptimisticConcurrencyException ex) {
if (!ex.getMessage().equals("An update collision occurred")) {
throw ex;
}
}
}
public void testProvidedConfig() throws SQLException {
// Create config programmatically
Config config = ConfigFactory.INSTANCE.createConfig();
ConfigHelper helper = new ConfigHelper(config);
helper.addPrimaryKey("BOOK.BOOK_ID");
DAS das = DAS.FACTORY.createDAS(helper.getConfig(), getConnection());
// Read a book instance
Command select = das.createCommand("SELECT * FROM BOOK WHERE BOOK_ID = 1");
DataObject root = select.executeQuery();
DataObject book = root.getDataObject("BOOK[1]");
// Change a field to mark the instance 'dirty'
book.setInt("QUANTITY", 2);
// Flush the change
das.applyChanges(root);
// Verify
root = select.executeQuery();
book = root.getDataObject("BOOK[1]");
assertEquals(2, book.getInt("QUANTITY"));
}
}
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