Java tutorial
/** * The MIT License * * Copyright (C) 2007 Asterios Raptis * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ package de.alpharogroup.lang; import java.lang.reflect.InvocationTargetException; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.Date; import java.util.List; import java.util.Map; import lombok.experimental.ExtensionMethod; import org.apache.commons.beanutils.BeanComparator; import org.testng.AssertJUnit; import org.testng.annotations.AfterMethod; import org.testng.annotations.BeforeMethod; import org.testng.annotations.Test; import de.alpharogroup.date.CreateDateUtils; import de.alpharogroup.date.DateDecorator; import de.alpharogroup.date.SqlTimestampDecorator; import de.alpharogroup.io.ChangedAttributeResult; import de.alpharogroup.test.objects.A; import de.alpharogroup.test.objects.Employee; import de.alpharogroup.test.objects.Gender; import de.alpharogroup.test.objects.Person; /** * The unit class for the class {@link ObjectExtensions}. */ @ExtensionMethod(ObjectExtensions.class) public class ObjectExtensionsTest { /** * Sets the up. * * @throws Exception * the exception */ @BeforeMethod public void setUp() throws Exception { } /** * Tear down. * * @throws Exception * the exception */ @AfterMethod public void tearDown() throws Exception { } /** * Test generic clone method. */ @Test(enabled = false) public void testClone() { final Date past = CreateDateUtils.newDate(2009, 3, 26, 10, 37, 04); final Date otherCopy = ObjectExtensions.clone(past); boolean result = past.equals(otherCopy); AssertJUnit.assertTrue("Cloned object should be equal with the source object.", result); final String aString = "Hy there..."; final String clonedString = ObjectExtensions.clone(aString); result = aString.equals(clonedString); AssertJUnit.assertTrue("Cloned object should be equal with the source object.", result); final A a = new A(); a.setA("a"); final A anotherCopy = ObjectExtensions.clone(a); result = a.equals(anotherCopy); AssertJUnit.assertTrue("Cloned object should be equal with the source object.", result); } /** * Test clone object. */ @Test(enabled = true) public void testCloneObject() { final Date past = CreateDateUtils.newDate(2009, 3, 26, 10, 37, 04); Object otherCopy = past.cloneObjectQuietly(); boolean result = past.equals(otherCopy); AssertJUnit.assertTrue("Cloned object should be equal with the source object.", result); final String aString = "Hy there..."; otherCopy = ObjectExtensions.cloneObjectQuietly(aString); result = aString.equals(otherCopy); AssertJUnit.assertTrue("Cloned object should be equal with the source object.", result); final A a = new A(); a.setA("a"); final Object anotherCopy = ObjectExtensions.cloneObjectQuietly(a); result = a.equals(anotherCopy); AssertJUnit.assertTrue("Cloned object should be equal with the source object.", result); } /** * Test compare. * * @throws IllegalAccessException * the illegal access exception * @throws InvocationTargetException * the invocation target exception * @throws NoSuchMethodException * the no such method exception */ @Test(enabled = false) public void testCompare() throws IllegalAccessException, InvocationTargetException, NoSuchMethodException { final Person sourceOjbect = new Person(); sourceOjbect.setGender(Gender.MALE); sourceOjbect.setName("obelix"); final Person objectToCompare = (Person) ObjectExtensions.cloneObjectQuietly(sourceOjbect); boolean result = ObjectExtensions.compare(sourceOjbect, objectToCompare); AssertJUnit.assertTrue("Cloned object should be equal with the source object.", result); objectToCompare.setGender(Gender.FEMALE); result = ObjectExtensions.compare(sourceOjbect, objectToCompare); AssertJUnit.assertFalse( "Object to compare should be not equal with the source object because it has changed.", result); } @SuppressWarnings({ "rawtypes", "unchecked" }) @Test(enabled = false) public void testCompareTo() throws IllegalAccessException, InvocationTargetException, NoSuchMethodException { final List<Person> persons = new ArrayList<>(); final Person obelix = new Person(); obelix.setGender(Gender.MALE); obelix.setName("obelix"); final Person asterix = new Person(); asterix.setGender(Gender.MALE); asterix.setName("asterix"); final Person miraculix = new Person(); miraculix.setGender(Gender.MALE); miraculix.setName("miraculix"); final int i = ObjectExtensions.compareTo(asterix, obelix, "name"); System.out.println(i); persons.add(obelix); persons.add(asterix); persons.add(miraculix); System.out.println("Unsorted Persons:"); System.out.println(persons.toString()); final Comparator defaultComparator = new BeanComparator("name"); Collections.sort(persons, defaultComparator); System.out.println("Sorted Persons by name:"); System.out.println(persons.toString()); Collections.reverse(persons); System.out.println("Sorted Persons by name reversed:"); System.out.println(persons.toString()); } @Test(enabled = true) public void testCopy() throws IllegalAccessException, InvocationTargetException { final DateDecorator dateDecorator = new DateDecorator(); final Date now = CreateDateUtils.now(); dateDecorator.setDate(now); final SqlTimestampDecorator timestampDecorator = new SqlTimestampDecorator(); ObjectExtensions.copy(dateDecorator, timestampDecorator); final Person person = Person.builder().gender(Gender.FEMALE).name("Anna").married(true).about("Ha ha ha...") .nickname("beast").build(); final Employee expected = Employee.builder().person(person).id("23").build(); final Employee actual = new Employee(); ObjectExtensions.copyQuietly(actual, expected); System.out.println(actual); AssertJUnit.assertEquals(actual.getId(), expected.getId()); AssertJUnit.assertEquals(actual.getPerson(), expected.getPerson()); } /** * Test get changed data. * * @throws IllegalAccessException * the illegal access exception * @throws InvocationTargetException * the invocation target exception * @throws NoSuchMethodException * the no such method exception */ @Test(enabled = false) public void testGetChangedData() throws IllegalAccessException, InvocationTargetException, NoSuchMethodException { final Person sourceOjbect = new Person(); sourceOjbect.setGender(Gender.MALE); sourceOjbect.setName("obelix"); final Person objectToCompare = (Person) ObjectExtensions.cloneObjectQuietly(sourceOjbect); Map<Object, ChangedAttributeResult> result = ObjectExtensions.getChangedDataMap(sourceOjbect, objectToCompare); AssertJUnit.assertTrue("Size should be 0 but is " + result.size(), result.size() == 0); // Change the gender from the objectToCompare... objectToCompare.setGender(Gender.FEMALE); // and get the changed data... result = ObjectExtensions.getChangedDataMap(sourceOjbect, objectToCompare); AssertJUnit.assertFalse("Size should be 1 but is " + result.size(), result.size() == 0); AssertJUnit.assertTrue("", result.containsKey("gender")); final ChangedAttributeResult changed = result.get("gender"); final Object sourceAttribute = changed.getSourceAttribute(); final Object changedAttribute = changed.getChangedAttribute(); AssertJUnit.assertTrue("", sourceAttribute.equals(Gender.MALE.name())); AssertJUnit.assertTrue("", changedAttribute.equals(Gender.FEMALE.name())); } }