Examples of org.dozer.DozerBeanMapper

org.dozer.DozerBeanMapper
Public Dozer Mapper implementation. This should be used/defined as a singleton within your application. This class perfoms several one time initializations and loads the custom xml mappings, so you will not want to create many instances of it for performance reasons. Typically a system will only have one DozerBeanMapper instance per VM. If you are using an IOC framework (i.e Spring), define the Mapper as singleton="true". If you are not using an IOC framework, a DozerBeanMapperSingletonWrapper convenience class has been provided in the Dozer jar.
It is technically possible to have multiple DozerBeanMapper instances initialized, but it will hinder internal performance optimizations such as caching. @author tierney.matt @author garsombke.franz @author dmitry.buzdin

   * test mapping of a generic field
   */
  @Test
  public void testSimpleGenerics() {


    Mapper mapper = new DozerBeanMapper();


    A a = new A();
    a.setId(15L);


    B b = mapper.map(a, B.class);
    Assert.assertEquals((Integer) a.getId().intValue(), b.getId());


    A a2 = mapper.map(a, A.class);
    Assert.assertEquals(a.getId(), a2.getId());


  }

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  /**
   * test mapping of a generic field with inheritance
   */
  @Test
  public void testSimpleGenericsInheritance() {
    Mapper mapper = new DozerBeanMapper();


    B b = new B();
    b.setId(15);


    AA aa = mapper.map(b, AA.class);
    Assert.assertEquals((Long) b.getId().longValue(), aa.getId());


    AA aa2 = mapper.map(b, AA.class);
    Assert.assertEquals((Long) b.getId().longValue(), aa2.getId());


  }

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   * Test mapping for deepn generic inheritance
   * @throws Exception
   */
  @Test
  public void testDeepGenericInheritanceTest() throws Exception {
    Mapper mapper = new DozerBeanMapper();


    B b = new B();
    b.setId(12345);
    C c1 = mapper.map(b, C.class);
    Assert.assertEquals(c1.getId().longValue(), 12345L);
  }

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  /**
   * test mapping of an object with three type parameters
   */
  @Test
  public void testGenericsWithSeveralTypes() {
    Mapper mapper = new DozerBeanMapper();


    GenericTestType testType = new GenericTestType();
    testType.setA(15L);
    testType.setB("test");
    testType.setC(7);


    GenericTestType testType2 = mapper.map(testType, GenericTestType.class);
    Assert.assertEquals(testType.getA(), testType2.getA());
    Assert.assertEquals(testType.getB(), testType2.getB());
    Assert.assertEquals(testType.getC(), testType2.getC());
  }

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  private DozerBeanMapper mapper;


  @Before
  public void setUp() {
    mapper = new DozerBeanMapper();
  }

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    mapper.map("", NoNothing.class);
  }


  @Test(expected = IllegalArgumentException.class)
  public void shouldFailOnDuplicateMapping() {
    DozerBeanMapper mapper = new DozerBeanMapper();
    mapper.addMapping(new BeanMappingBuilder() {
      @Override
      protected void configure() {
        mapping(String.class, NoNothing.class);
      }
    });


    mapper.addMapping(new BeanMappingBuilder() {
      @Override
      protected void configure() {
        mapping(String.class, NoNothing.class);
      }
    });
    
    mapper.map("A", NoNothing.class);
  }

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  private DozerBeanMapper beanMapper;


  @Before
  public void setUp() {
    beanMapper = new DozerBeanMapper();
  }

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  @Test
  public void testNoMappingFilesSpecified() throws Exception {
    // Mapper can be used without specifying any mapping files. Fields that have the same name will be mapped
    // automatically.
    Mapper mapper = new DozerBeanMapper();


    assertCommon(mapper);
  }

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  @Test
  public void testInjectMapperUsingSpring() throws Exception {
    // Try to get mapper from spring. Mapping files are injected via Spring config.
    Mapper mapper = (Mapper) ApplicationBeanFactory.getBean(Mapper.class);
    DozerBeanMapper mapperImpl = (DozerBeanMapper) mapper;


    Mapper cleanMapper = (Mapper) ApplicationBeanFactory.getBean("cleanMapper");


    assertNotNull("mapper should not be null", mapper);
    assertNotNull("mapping file names should not be null", mapperImpl.getMappingFiles());
    assertTrue("mapping file names should not be empty", mapperImpl.getMappingFiles().size() > 0);


    // Do some mapping so that the mapping files are actually loaded
    assertCommon(mapper);


    // make sure that the customconverter was injected

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  @Test(expected=IllegalArgumentException.class)
  public void testDetectDuplicateMapping() throws Exception {
    Mapper myMapper = null;
    List<String> mappingFiles = new ArrayList<String>();
    mappingFiles.add("duplicateMapping.xml");
    myMapper = new DozerBeanMapper(mappingFiles);


    myMapper.map(new org.dozer.vo.SuperSuperSuperClass(), org.dozer.vo.SuperSuperSuperClassPrime.class);
    fail("should have thrown exception");
  }

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