/*
* Copyright 2008 Udai Gupta, Ralf Joachim
*
* Licensed 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.castor.cpa.test.test73;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.castor.cpa.test.framework.CPATestCase;
import org.castor.cpa.test.framework.xml.types.DatabaseEngineType;
import org.castor.cpa.test.test74.TestManyToManyKeyGen;
import org.exolab.castor.jdo.Database;
import org.exolab.castor.jdo.OQLQuery;
import org.exolab.castor.jdo.PersistenceException;
import org.exolab.castor.jdo.QueryResults;
/**
* Test for many-to-many relationship. A many to many relationship is stored in
* a relational database as a separated table.
*/
public final class TestManyToMany extends CPATestCase {
private static final int PERSON_1_ID = 1;
private static final int PERSON_2_ID = 2;
private static final int PERSON_3_ID = 3;
private static final int PERSON_4_ID = 4;
private static final int GROUP_A_ID = 201;
private static final int GROUP_B_ID = 202;
private static final Log LOG = LogFactory.getLog(TestManyToManyKeyGen.class);
private static final String DBNAME = "test73";
private static final String MAPPING = "/org/castor/cpa/test/test73/mapping.xml";
private Database _db;
private OQLQuery _oql;
private ManyPerson _person1;
private ManyPerson _person2;
private ManyPerson _person3;
private ManyPerson _person4;
private ManyGroup _groupA;
private ManyGroup _groupB;
/**
* Constructor
*
* @param category
* The test suite of these tests
*/
public TestManyToMany(final String name) {
super(name);
}
// Test are only included/excluded for engines that have been tested with this test suite.
public boolean include(final DatabaseEngineType engine) {
return (engine == DatabaseEngineType.DERBY)
|| (engine == DatabaseEngineType.HSQL)
|| (engine == DatabaseEngineType.MYSQL)
|| (engine == DatabaseEngineType.ORACLE)
|| (engine == DatabaseEngineType.POSTGRESQL);
}
public void setUp() throws Exception {
_db = getJDOManager(DBNAME, MAPPING).getDatabase();
}
public void tearDown() throws Exception {
if (_db.isActive()) {
_db.rollback();
}
_db.close();
}
public void testManyToMany() throws PersistenceException {
LOG.debug("Running...");
LOG.debug("");
deleteGroups();
deletePersons();
create();
check1();
check2();
check3();
check4();
check5();
check6();
check7();
check8();
}
private void deleteGroups() throws PersistenceException {
_db.begin();
OQLQuery oqlclean = _db.getOQLQuery("SELECT object FROM " + ManyGroup.class.getName()
+ " object WHERE object.id < $1");
oqlclean.bind(Integer.MAX_VALUE);
QueryResults enumeration = oqlclean.execute();
while (enumeration.hasMore()) {
_groupA = (ManyGroup) enumeration.next();
LOG.debug("Retrieved object: " + _groupA);
_db.remove(_groupA);
LOG.debug("Deleted object: " + _groupA);
}
_db.commit();
}
private void deletePersons() throws PersistenceException {
_db.begin();
OQLQuery oqlclean = _db.getOQLQuery("SELECT object FROM " + ManyPerson.class.getName()
+ " object WHERE object.id < $1");
oqlclean.bind(Integer.MAX_VALUE);
QueryResults enumeration = oqlclean.execute();
while (enumeration.hasMore()) {
_person1 = (ManyPerson) enumeration.next();
LOG.debug("Retrieved object: " + _person1);
_db.remove(_person1);
LOG.debug("Deleted object: " + _person1);
}
_db.commit();
}
private void create() throws PersistenceException {
// create new group and new people, don't link them yet.
// This test for null collection handling
_db.begin();
_oql = _db.getOQLQuery("SELECT object FROM " + ManyGroup.class.getName()
+ " object WHERE id = $1");
LOG.debug("Creating new group with people!");
_person1 = new ManyPerson();
_person1.setValue1("I am person 1");
_person1.setId(PERSON_1_ID);
_person1.setGroup(null);
_person1.setSthelse("Something else");
_person1.setHelloworld("Hello World!");
_db.create(_person1);
_db.commit();
// create new group with two people
_db.begin();
LOG.debug("Creating new group with people!");
_person1 = _db.load(ManyPerson.class, new Integer(PERSON_1_ID));
_person1.setValue1("I am person 1");
ArrayList < ManyGroup > gPerson1 = new ArrayList < ManyGroup > ();
_person1.setId(PERSON_1_ID);
_person1.setGroup(gPerson1);
_person1.setSthelse("Something else");
_person1.setHelloworld("Hello World!");
_person2 = new ManyPerson();
_person2.setValue1("I am person 2");
ArrayList < ManyGroup > gPerson2 = new ArrayList < ManyGroup > ();
_person2.setId(PERSON_2_ID);
_person2.setGroup(gPerson2);
_person2.setSthelse("Something else");
_person2.setHelloworld("Hello World!");
_person3 = new ManyPerson();
_person3.setValue1("I am person 3");
ArrayList < ManyGroup > gPerson3 = new ArrayList < ManyGroup > ();
_person3.setId(PERSON_3_ID);
_person3.setGroup(gPerson3);
_person3.setSthelse("Something else for person 3");
_person3.setHelloworld("Hello World!");
_person4 = new ManyPerson();
_person4.setValue1("I am person 4");
ArrayList < ManyGroup > gPerson4 = new ArrayList < ManyGroup > ();
_person4.setId(PERSON_4_ID);
_person4.setGroup(gPerson4);
_person4.setSthelse("Something else for person 4");
_person4.setHelloworld("Hello World!");
_groupA = new ManyGroup();
_groupA.setValue1("Group A");
ArrayList < ManyPerson > al = new ArrayList < ManyPerson > ();
al.add(_person1);
al.add(_person2);
_groupA.setId(GROUP_A_ID);
_groupA.setPeople(al);
_groupB = new ManyGroup();
_groupB.setValue1("Group B");
_groupB.setId(GROUP_B_ID);
ArrayList < ManyPerson > bl = new ArrayList < ManyPerson > ();
bl.add(_person2);
_groupB.setPeople(bl);
gPerson1.add(_groupA);
gPerson2.add(_groupA);
gPerson2.add(_groupB);
_db.create(_groupA);
_db.create(_person2);
_db.create(_groupB);
LOG.debug("object created: " + _groupA);
_db.commit();
}
private void check1() throws PersistenceException {
LOG.debug("Load the objects and modify it");
_db.begin();
_oql.bind(GROUP_A_ID);
_groupA = null;
_person1 = null;
_person2 = null;
QueryResults enumeration = _oql.execute();
if (enumeration.hasMore()) {
_groupA = (ManyGroup) enumeration.next();
LOG.debug("Retrieved object: " + _groupA);
Collection < ManyPerson > p = _groupA.getPeople();
if (p != null) {
Iterator < ManyPerson > itor = p.iterator();
if (itor.hasNext()) {
_person1 = itor.next();
}
if (itor.hasNext()) {
_person2 = itor.next();
}
if (itor.hasNext()) {
fail("Error: more people than expected!");
}
if ((_person1 == null) || (_person2 == null)) {
fail("Error: expect two people in group");
}
if ((_person1.getId() == PERSON_2_ID) && (_person2.getId() == PERSON_1_ID)) {
ManyPerson temp = _person1;
_person1 = _person2;
_person2 = temp;
}
if ((_person1.getId() == PERSON_1_ID) && (_person2.getId() == PERSON_2_ID)) {
// check if the value is valid for person1 and chnage value
// of person1
if ((_person1.getValue1() == null)
|| !_person1.getValue1().equals("I am person 1")) {
fail("Error: unexpected person value");
} else {
_person1.setValue1("New person 1 value");
}
// check if the value is valid for person1 and remove
// person2
if ((_person2.getValue1() == null)
|| !_person2.getValue1().equals("I am person 2")) {
fail("Error: unexpected person value");
}
// make sure person 2 contains 2 groups
if ((_person2.getGroup() == null) || (_person2.getGroup().size() != 2)) {
fail("Error: expected group not found [2]");
}
Iterator < ManyGroup > groupItor = _person2.getGroup().iterator();
groupItor.hasNext();
ManyGroup tempGroup = groupItor.next();
int tempId = tempGroup.getId();
if ((tempId != GROUP_A_ID) && (tempId != GROUP_B_ID)) {
fail("Error: unexpect group found");
}
groupItor.hasNext();
tempGroup = groupItor.next();
if (tempGroup.getId() == tempId) {
fail("Error: duplicated group found");
}
if ((tempGroup.getId() != GROUP_A_ID) && (tempGroup.getId() != GROUP_B_ID)) {
fail("Error: unexpect group found");
}
// remove person 2
itor = p.iterator();
while (itor.hasNext()) {
_person2 = itor.next();
if (_person2.getId() == PERSON_2_ID) {
itor.remove();
break;
}
}
// add person 3
_groupA.getPeople().add(_person3);
_person3.getGroup().add(_groupA);
_db.create(_person3);
} else {
fail("Error: people in group is not the same as expected!");
}
} else {
fail("Error: related object not found[1]!");
}
} else {
fail("Error: object not found!");
}
_db.commit();
}
private void check2() throws PersistenceException {
LOG.debug("Load the objects again to see if changes done are effective");
_db.begin();
_oql.bind(GROUP_A_ID);
_groupA = null;
_person1 = null;
_person2 = null;
QueryResults enumeration = _oql.execute();
if (enumeration.hasMore()) {
_groupA = (ManyGroup) enumeration.next();
LOG.debug("Retrieved object: " + _groupA);
Collection < ManyPerson > p = _groupA.getPeople();
if (p != null) {
Iterator < ManyPerson > itor = p.iterator();
if (itor.hasNext()) {
_person1 = itor.next();
}
if (itor.hasNext()) {
_person3 = itor.next();
}
// swap if the order is wrong
if ((_person1.getId() == PERSON_3_ID) && (_person3.getId() == PERSON_1_ID)) {
ManyPerson temp = _person1;
_person1 = _person3;
_person3 = temp;
}
if (itor.hasNext()) {
fail("Error: more people than expected! " + "1:(" + _person1 + ") 2: ("
+ itor.next() + ")");
}
if (_person1 == null) {
fail("Error: expect person1 in group");
}
if (_person1.getId() == PERSON_1_ID) {
// check if the value is valid for person1 and chnage value
// of person1
if ((_person1.getValue1() == null)
|| !_person1.getValue1().equals("New person 1 value")) {
fail("Error: unexpected person value");
}
} else {
fail("Error: people in group is not the same as expected!");
}
if (_person3.getId() == PERSON_3_ID) {
// check if the value is valid for person1 and chnage value
// of person1
if ((_person3.getValue1() == null)
|| !_person3.getValue1().equals("I am person 3")) {
fail("Error: unexpected person value");
}
} else {
fail("Error: people in group is not the same as expected!");
}
} else {
fail("Error: related object not found[2]!");
}
} else {
fail("Error: object not found!");
}
// check if person 2 contains only one group, and the group is B
_person2 = _db.load(ManyPerson.class, new Integer(PERSON_2_ID));
// make sure person 2 contains 2 groups
if ((_person2.getGroup() == null) || (_person2.getGroup().size() != 1)) {
fail("Error: expected group not found [3]");
}
Iterator < ManyGroup > groupItor = _person2.getGroup().iterator();
groupItor.hasNext();
ManyGroup tempGroup = groupItor.next();
if (tempGroup.getId() != GROUP_B_ID) {
fail("Error: unexpected group found [1]: " + tempGroup.getId());
}
// remove all group from person2
_person2.setGroup(null);
_db.commit();
}
private void check3() throws PersistenceException {
_db.begin();
// check if person 2 contains no group
_person2 = _db.load(ManyPerson.class, new Integer(PERSON_2_ID));
if ((_person2.getGroup() != null) && (_person2.getGroup().size() != 0)) {
fail("Error: expected group not found [1]");
}
_db.remove(_person2);
_db.commit();
}
private void check4() throws PersistenceException {
_db.begin();
// check if group a and group b contains no person2
_groupA = _db.load(ManyGroup.class, new Integer(GROUP_A_ID));
Iterator < ManyPerson > groupItor = _groupA.getPeople().iterator();
while (groupItor.hasNext()) {
_person2 = groupItor.next();
if (_person2.getId() == PERSON_2_ID) {
fail("Error: person2 is not removed");
}
}
_groupB = _db.load(ManyGroup.class, new Integer(GROUP_B_ID));
if ((_groupB.getPeople() != null) && (_groupB.getPeople().size() != 0)) {
fail("Error: person2 is not removed");
}
// make a dangerous add (add to only one side)
// user shouldn't rely on this behavior, but
// should always link both side before commit
_person1 = _db.load(ManyPerson.class, new Integer(PERSON_1_ID));
_person1.getGroup().add(_groupB);
_db.commit();
}
private void check5() throws PersistenceException {
// check if adding group into existing collection work
_db.begin();
_person1 = _db.load(ManyPerson.class, new Integer(PERSON_1_ID));
Iterator < ManyGroup > tempItor = _person1.getGroup().iterator();
if (!tempItor.hasNext()) {
fail("Error: expected group from person1 not found");
}
_groupA = tempItor.next();
int tempGroupId = _groupA.getId();
if ((tempGroupId != GROUP_A_ID) && (tempGroupId != GROUP_B_ID)) {
fail("Error: unexpected group from person1 found");
}
if (!tempItor.hasNext()) {
fail("Error: expected group from person1 not found");
}
_groupA = tempItor.next();
if (tempGroupId == _groupA.getId()) {
fail("Error: duplicated group found!");
}
if ((_groupA.getId() != GROUP_A_ID) && (_groupA.getId() != GROUP_B_ID)) {
fail("Error: unexpected group from person1 found");
}
_db.commit();
}
private void check6() throws PersistenceException {
// test long transaction support
_db.begin();
_groupA = _db.load(ManyGroup.class, new Integer(GROUP_A_ID));
_db.commit();
LOG.debug("Modifing object outside of transaction");
// remove person 3
Iterator < ManyPerson > it = _groupA.getPeople().iterator();
while (it.hasNext()) {
_person3 = it.next();
if (_person3.getId() == PERSON_3_ID) {
it.remove();
break;
}
}
_person3.getGroup().clear();
// add person 4
_groupA.getPeople().add(_person4);
_person4.getGroup().add(_groupA);
// find person 1
_person1 = null;
it = _groupA.getPeople().iterator();
while (it.hasNext()) {
_person1 = it.next();
if (_person1.getId() == PERSON_1_ID) {
break;
}
}
_person1.setValue1("New new value for person 1");
LOG.debug("Update object to a new transaction");
_db.setAutoStore(true);
_db.begin();
_db.update(_groupA);
_db.commit();
}
private void check7() throws PersistenceException {
LOG.debug("Load the objects again to see if changes done are effective");
_db.begin();
_oql.bind(GROUP_A_ID);
_groupA = null;
_person1 = null;
_person2 = null;
QueryResults enumeration = _oql.execute();
if (enumeration.hasMore()) {
_groupA = (ManyGroup) enumeration.next();
LOG.debug("Retrieved object: " + _groupA);
Collection < ManyPerson > p = _groupA.getPeople();
if (p != null) {
Iterator < ManyPerson > itor = p.iterator();
if (itor.hasNext()) {
_person1 = itor.next();
} else {
fail("Erorr: less people than expected!");
}
if (itor.hasNext()) {
_person4 = itor.next();
} else {
fail("Erorr: less people than expected!");
}
// swap if the order is wrong
if ((_person1.getId() == PERSON_4_ID) && (_person4.getId() == PERSON_1_ID)) {
ManyPerson temp = _person1;
_person1 = _person4;
_person4 = temp;
}
if (itor.hasNext()) {
fail("Error: more people than expected! " + "1:(" + _person1 + ") 2: ("
+ itor.next() + ")");
}
if (_person1 == null) {
fail("Error: expect person1 in group");
}
if (_person1.getId() == PERSON_1_ID) {
// check if the value is valid for person1 and chnage value
// of person1
if ((_person1.getValue1() == null)
|| !_person1.getValue1().equals("New new value for person 1")) {
fail("Error: unexpected person value");
}
} else {
fail("Error: people in group is not the same as expected!");
}
if (_person4.getId() == PERSON_4_ID) {
// check if the value is valid for person1 and chnage value
// of person1
if ((_person4.getValue1() == null)
|| !_person4.getValue1().equals("I am person 4")) {
fail("Error: unexpected person value");
}
} else {
fail("Error: people in group is not the same as expected!");
}
} else {
fail("Error: related object not found[3]!");
}
} else {
fail("Error: object not found!");
}
_person3 = _db.load(ManyPerson.class, new Integer(PERSON_3_ID));
_db.commit();
}
private void check8() throws PersistenceException {
// modify and commit to long trans
_groupA.getPeople().add(_person3);
_person3.getGroup().add(_groupA);
_db.begin();
_db.update(_groupA);
_db.commit();
// load and check
_db.begin();
_person3 = _db.load(ManyPerson.class, new Integer(PERSON_3_ID));
Iterator < ManyGroup > tempItor = _person3.getGroup().iterator();
if (!tempItor.hasNext()) {
fail("Error: group not found");
}
_groupA = tempItor.next();
if (_groupA.getId() != GROUP_A_ID) {
fail("Error: unexpected group found");
}
if (tempItor.hasNext()) {
fail("Error: too many group");
}
_db.commit();
}
}