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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.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.apache.tuscany.das.rdb.Command;
import org.apache.tuscany.das.rdb.DAS;
import org.apache.tuscany.das.rdb.test.customer.Customer;
import org.apache.tuscany.das.rdb.test.customer.CustomerFactory;
import org.apache.tuscany.das.rdb.test.data.CustomerData;
import org.apache.tuscany.das.rdb.test.framework.DasTest;
import org.apache.tuscany.sdo.util.SDOUtil;
import commonj.sdo.DataObject;
/**
* Tests the Converter framwork
*/
public class ConverterTests extends DasTest {
private static DateFormat myformat = new SimpleDateFormat("yyyy.MM.dd");
private static Date kbday;
private static Date tbday;
protected void setUp() throws Exception {
super.setUp();
new CustomerData(getAutoConnection()).refresh();
}
protected void tearDown() throws Exception {
super.tearDown();
}
static {
try {
kbday = myformat.parse("1957.09.27");
tbday = myformat.parse("1966.12.20");
} catch (ParseException e) {
throw new RuntimeException(e);
}
}
/**
* This tests the use of an arbitrary converter. The column converted is a VARCAHAR. ResultSetShape is used to specify that the property will be a
* SDODataTypes.DATE.
*
* So this example uses a converter that transforms a string column into a date property and conversely, a date property back to a string for the
* underlying column.
*
* The converter returns 1957.09.27 if the column value is "Williams" and 1966.12.20 if the value is "Pavick"
*
* On write, the converter returns "Pavick" if the property value is 1966.12.20 and "Williams" if the property value is 1957.09.27
*
*/
public void testArbitraryConverter() throws Exception {
DAS das = DAS.FACTORY.createDAS(getConfig("CustomerConfigWithConverter.xml"), getConnection());
// Create and initialize command to read customers
Command read = das.getCommand("testArbitraryConverter");
// Read
DataObject root = read.executeQuery();
// Verify
assertEquals(kbday, root.getDate("CUSTOMER[1]/LASTNAME"));
// Modify
root.setDate("CUSTOMER[1]/LASTNAME", tbday);
das.applyChanges(root);
// Read
root = read.executeQuery();
// Verify
assertEquals(tbday, root.getDate("CUSTOMER[1]/LASTNAME"));
}
public void testInvalidConverter1() throws Exception {
DAS das = DAS.FACTORY.createDAS(getConfig("InvalidConverter.xml"), getConnection());
// Build the select command to read a specific customer and related
// orders
Command select = das
.createCommand("SELECT * FROM CUSTOMER LEFT JOIN ANORDER " + "ON CUSTOMER.ID = ANORDER.CUSTOMER_ID where CUSTOMER.ID = ?");
// Parameterize the command
select.setParameter(1, Integer.valueOf(1));
// Get the graph
try {
select.executeQuery();
} catch (Exception ex) {
assertEquals("java.lang.ClassNotFoundException: not.a.valid.class", ex.getMessage());
}
}
public void testInvalidConverter2() throws Exception {
SDOUtil.registerStaticTypes(CustomerFactory.class);
DAS das = DAS.FACTORY.createDAS(getConfig("InvalidConverter.xml"), getConnection());
// Build the select command to read a specific customer and related
// orders
Command select = das.createCommand("SELECT * FROM ANORDER");
// Get the graph
DataObject root = select.executeQuery();
DataObject order = root.getDataObject("AnOrder[1]");
Customer customer = (Customer) root.createDataObject("Customer");
customer.setID(700);
customer.setLastName("Daniel");
customer.setAddress("an address");
customer.getOrders().add(order);
try {
das.applyChanges(root);
} catch (Exception ex) {
assertEquals("java.lang.ClassNotFoundException: not.a.valid.class", ex.getMessage());
}
}
/**
* This tests the use of a converter that does not produce a new "type". Instead it
* modifies the original value before storing to the database. In this exampe, the
* converter restores the original value on read.
*
* This is illustrated by obfuscating the lastname value before it is stored to the database and
* deobfuscating on read.
*
*/
public void testConverter3() throws Exception {
DAS das = DAS.FACTORY.createDAS(getConfig("CustomerConfigWithConverter2.xml"), getConnection());
// Create and initialize command to read customers
Command read = das.getCommand("getFirstCustomer");
// Read
DataObject root = read.executeQuery();
//Modify
root.setString("CUSTOMER[1]/LASTNAME", "Some new name");
das.applyChanges(root);
// Read
root = read.executeQuery();
// Verify that I can read back the deobfuscated value
assertEquals("Some new name", root.getString("CUSTOMER[1]/LASTNAME"));
//Now read directly without applying the converter to ensure that the value was obfuscated
//in the database.
DAS das2 = DAS.FACTORY.createDAS(getConnection());
Command directRead = das2.createCommand("select * from CUSTOMER where ID = 1");
root = directRead.executeQuery();
assertEquals("Fbzr arj anzr", root.getString("CUSTOMER[1]/LASTNAME"));
assertEquals(obfuscate("Some new name"), root.getString("CUSTOMER[1]/LASTNAME"));
}
// Utilities
private String obfuscate (String original) throws Exception {
return toRot13(original);
}
private String deobfuscate (String obfuscated) throws Exception {
return toRot13(obfuscated);
}
//A simple, reversible, obfuscation algorithm using a ROT13 implementation
private String toRot13(String original) throws Exception {
int abyte = 0;
byte[] buffer = original.getBytes("ISO-8859-1");
for (int i = 0; i < buffer.length; i++) {
abyte = buffer[i];
int cap = abyte & 32;
abyte &= ~cap;
abyte = ((abyte >= 'A') && (abyte <= 'Z') ? ((abyte - 'A' + 13) % 26 + 'A') : abyte) | cap;
buffer[i] = (byte) abyte;
}
return new String(buffer, "ISO-8859-1");
}
}
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