databindertests.java

spring的源代码

			public void setAsText(String text) throws IllegalArgumentException {
				setValue(new Integer(99));
			}
			public String getAsText() {
				return "argh";
			}
		});

		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue(new PropertyValue("age", ""));
		binder.bind(pvs);

		assertEquals("argh", binder.getErrors().getFieldValue("age"));
		assertEquals(99, tb.getAge());
	}

	public void testCustomEditorForAllStringProperties() {
		TestBean tb = new TestBean();
		DataBinder binder = new DataBinder(tb, "tb");

		binder.registerCustomEditor(String.class, null, new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				setValue("prefix" + text);
			}
			public String getAsText() {
				return ((String) getValue()).substring(6);
			}
		});

		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue(new PropertyValue("name", "value"));
		pvs.addPropertyValue(new PropertyValue("touchy", "value"));
		binder.bind(pvs);

		binder.getErrors().rejectValue("name", "someCode", "someMessage");
		binder.getErrors().rejectValue("touchy", "someCode", "someMessage");

		assertEquals("value", binder.getErrors().getFieldValue("name"));
		assertEquals("prefixvalue", binder.getErrors().getFieldError("name").getRejectedValue());
		assertEquals("prefixvalue", tb.getName());
		assertEquals("value", binder.getErrors().getFieldValue("touchy"));
		assertEquals("prefixvalue", binder.getErrors().getFieldError("touchy").getRejectedValue());
		assertEquals("prefixvalue", tb.getTouchy());
	}

	public void testCustomEditorWithOldValueAccess() {
		TestBean tb = new TestBean();
		DataBinder binder = new DataBinder(tb, "tb");

		binder.registerCustomEditor(String.class, null, new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				if (getValue() == null || !text.equalsIgnoreCase(getValue().toString())) {
					setValue(text);
				}
			}
		});

		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue(new PropertyValue("name", "value"));
		binder.bind(pvs);
		assertEquals("value", tb.getName());

		pvs = new MutablePropertyValues();
		pvs.addPropertyValue(new PropertyValue("name", "vaLue"));
		binder.bind(pvs);
		assertEquals("value", tb.getName());
	}

	public void testValidatorNoErrors() {
		TestBean tb = new TestBean();
		tb.setAge(33);
		tb.setName("Rod");
		try {
			tb.setTouchy("Rod");
		}
		catch (Exception e) {
			fail("Should not throw any Exception");
		}
		TestBean tb2 = new TestBean();
		tb2.setAge(34);
		tb.setSpouse(tb2);
		DataBinder db = new DataBinder(tb, "tb");
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("spouse.age", "argh");
		db.bind(pvs);
		Errors errors = db.getErrors();
		Validator testValidator = new TestBeanValidator();
		testValidator.validate(tb, errors);

		errors.setNestedPath("spouse");
		assertEquals("spouse.", errors.getNestedPath());
		assertEquals("argh", errors.getFieldValue("age"));
		Validator spouseValidator = new SpouseValidator();
		spouseValidator.validate(tb.getSpouse(), errors);

		errors.setNestedPath("");
		assertEquals("", errors.getNestedPath());
		errors.pushNestedPath("spouse");
		assertEquals("spouse.", errors.getNestedPath());
		errors.pushNestedPath("spouse");
		assertEquals("spouse.spouse.", errors.getNestedPath());
		errors.popNestedPath();
		assertEquals("spouse.", errors.getNestedPath());
		errors.popNestedPath();
		assertEquals("", errors.getNestedPath());
		try {
			errors.popNestedPath();
		}
		catch (IllegalStateException ex) {
			// expected, because stack was empty
		}
		errors.pushNestedPath("spouse");
		assertEquals("spouse.", errors.getNestedPath());
		errors.setNestedPath("");
		assertEquals("", errors.getNestedPath());
		try {
			errors.popNestedPath();
		}
		catch (IllegalStateException ex) {
			// expected, because stack was reset by setNestedPath
		}

		errors.pushNestedPath("spouse");
		assertEquals("spouse.", errors.getNestedPath());

		assertEquals(1, errors.getErrorCount());
		assertTrue(!errors.hasGlobalErrors());
		assertEquals(1, errors.getFieldErrorCount("age"));
		assertTrue(!errors.hasFieldErrors("name"));
	}

	public void testValidatorWithErrors() {
		TestBean tb = new TestBean();
		tb.setSpouse(new TestBean());
		Errors errors = new BindException(tb, "tb");
		Validator testValidator = new TestBeanValidator();
		testValidator.validate(tb, errors);
		errors.setNestedPath("spouse.");
		assertEquals("spouse.", errors.getNestedPath());
		Validator spouseValidator = new SpouseValidator();
		spouseValidator.validate(tb.getSpouse(), errors);

		errors.setNestedPath("");
		assertEquals(6, errors.getErrorCount());
		assertEquals(2, errors.getGlobalErrorCount());
		assertEquals("NAME_TOUCHY_MISMATCH", errors.getGlobalError().getCode());
		assertEquals("NAME_TOUCHY_MISMATCH", ((ObjectError) errors.getGlobalErrors().get(0)).getCode());
		assertEquals("NAME_TOUCHY_MISMATCH.tb", ((ObjectError) errors.getGlobalErrors().get(0)).getCodes()[0]);
		assertEquals("NAME_TOUCHY_MISMATCH", ((ObjectError) errors.getGlobalErrors().get(0)).getCodes()[1]);
		assertEquals("tb", ((ObjectError) errors.getGlobalErrors().get(0)).getObjectName());
		assertEquals("GENERAL_ERROR", ((ObjectError) errors.getGlobalErrors().get(1)).getCode());
		assertEquals("GENERAL_ERROR.tb", ((ObjectError) errors.getGlobalErrors().get(1)).getCodes()[0]);
		assertEquals("GENERAL_ERROR", ((ObjectError) errors.getGlobalErrors().get(1)).getCodes()[1]);
		assertEquals("msg", ((ObjectError) errors.getGlobalErrors().get(1)).getDefaultMessage());
		assertEquals("arg", ((ObjectError) errors.getGlobalErrors().get(1)).getArguments()[0]);
		assertEquals(2, errors.getFieldErrorCount("age"));
		assertEquals("TOO_YOUNG", errors.getFieldError("age").getCode());
		assertEquals("TOO_YOUNG", ((FieldError) errors.getFieldErrors("age").get(0)).getCode());
		assertEquals("tb", ((FieldError) errors.getFieldErrors("age").get(0)).getObjectName());
		assertEquals("age", ((FieldError) errors.getFieldErrors("age").get(0)).getField());
		assertEquals(new Integer(0), ((FieldError) errors.getFieldErrors("age").get(0)).getRejectedValue());
		assertEquals("AGE_NOT_ODD", ((FieldError) errors.getFieldErrors("age").get(1)).getCode());
		assertEquals(1, errors.getFieldErrorCount("name"));
		assertEquals("NOT_ROD", errors.getFieldError("name").getCode());
		assertEquals("NOT_ROD.tb.name", errors.getFieldError("name").getCodes()[0]);
		assertEquals("NOT_ROD.name", errors.getFieldError("name").getCodes()[1]);
		assertEquals("NOT_ROD.java.lang.String", errors.getFieldError("name").getCodes()[2]);
		assertEquals("NOT_ROD", errors.getFieldError("name").getCodes()[3]);
		assertEquals("name", ((FieldError) errors.getFieldErrors("name").get(0)).getField());
		assertEquals(null, ((FieldError) errors.getFieldErrors("name").get(0)).getRejectedValue());
		assertEquals(1, errors.getFieldErrorCount("spouse.age"));
		assertEquals("TOO_YOUNG", errors.getFieldError("spouse.age").getCode());
		assertEquals("tb", ((FieldError) errors.getFieldErrors("spouse.age").get(0)).getObjectName());
		assertEquals(new Integer(0), ((FieldError) errors.getFieldErrors("spouse.age").get(0)).getRejectedValue());
	}

	public void testBindingStringArrayToIntegerSet() {
		IndexedTestBean tb = new IndexedTestBean();
		DataBinder binder = new DataBinder(tb, "tb");
		binder.registerCustomEditor(Set.class, new CustomCollectionEditor(TreeSet.class) {
			protected Object convertElement(Object element) {
				return new Integer(element.toString());
			}
		});
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("set", new String[] {"10", "20", "30"});
		binder.bind(pvs);

		assertEquals(tb.getSet(), binder.getErrors().getFieldValue("set"));
		assertTrue(tb.getSet() instanceof TreeSet);
		assertEquals(3, tb.getSet().size());
		assertTrue(tb.getSet().contains(new Integer(10)));
		assertTrue(tb.getSet().contains(new Integer(20)));
		assertTrue(tb.getSet().contains(new Integer(30)));

		pvs = new MutablePropertyValues();
		pvs.addPropertyValue("set", null);
		binder.bind(pvs);

		assertNull(tb.getSet());
	}

	public void testBindingNullToEmptyCollection() {
		IndexedTestBean tb = new IndexedTestBean();
		DataBinder binder = new DataBinder(tb, "tb");
		binder.registerCustomEditor(Set.class, new CustomCollectionEditor(TreeSet.class, true));
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("set", null);
		binder.bind(pvs);

		assertTrue(tb.getSet() instanceof TreeSet);
		assertTrue(tb.getSet().isEmpty());
	}

	public void testBindingToIndexedField() {
		IndexedTestBean tb = new IndexedTestBean();
		DataBinder binder = new DataBinder(tb, "tb");
		binder.registerCustomEditor(String.class, "array.name", new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				setValue("array" + text);
			}
		});
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("array[0]", "a");
		binder.bind(pvs);
		Errors errors = binder.getErrors();
		errors.rejectValue("array[0].name", "NOT_ROD", "are you sure you're not Rod?");
		errors.rejectValue("map[key1].name", "NOT_ROD", "are you sure you're not Rod?");

		assertEquals(1, errors.getFieldErrorCount("array[0].name"));
		assertEquals("NOT_ROD", errors.getFieldError("array[0].name").getCode());
		assertEquals("NOT_ROD.tb.array[0].name", errors.getFieldError("array[0].name").getCodes()[0]);
		assertEquals("NOT_ROD.tb.array.name", errors.getFieldError("array[0].name").getCodes()[1]);
		assertEquals("NOT_ROD.array[0].name", errors.getFieldError("array[0].name").getCodes()[2]);
		assertEquals("NOT_ROD.array.name", errors.getFieldError("array[0].name").getCodes()[3]);
		assertEquals("NOT_ROD.name", errors.getFieldError("array[0].name").getCodes()[4]);
		assertEquals("NOT_ROD.java.lang.String", errors.getFieldError("array[0].name").getCodes()[5]);
		assertEquals("NOT_ROD", errors.getFieldError("array[0].name").getCodes()[6]);
		assertEquals(1, errors.getFieldErrorCount("map[key1].name"));
		assertEquals(1, errors.getFieldErrorCount("map['key1'].name"));
		assertEquals(1, errors.getFieldErrorCount("map[\"key1\"].name"));
		assertEquals("NOT_ROD", errors.getFieldError("map[key1].name").getCode());
		assertEquals("NOT_ROD.tb.map[key1].name", errors.getFieldError("map[key1].name").getCodes()[0]);
		assertEquals("NOT_ROD.tb.map.name", errors.getFieldError("map[key1].name").getCodes()[1]);
		assertEquals("NOT_ROD.map[key1].name", errors.getFieldError("map[key1].name").getCodes()[2]);
		assertEquals("NOT_ROD.map.name", errors.getFieldError("map[key1].name").getCodes()[3]);
		assertEquals("NOT_ROD.name", errors.getFieldError("map[key1].name").getCodes()[4]);
		assertEquals("NOT_ROD.java.lang.String", errors.getFieldError("map[key1].name").getCodes()[5]);
		assertEquals("NOT_ROD", errors.getFieldError("map[key1].name").getCodes()[6]);
	}

	public void testBindingToNestedIndexedField() {
		IndexedTestBean tb = new IndexedTestBean();
		tb.getArray()[0].setNestedIndexedBean(new IndexedTestBean());
		tb.getArray()[1].setNestedIndexedBean(new IndexedTestBean());
		DataBinder binder = new DataBinder(tb, "tb");
		binder.registerCustomEditor(String.class, "array.nestedIndexedBean.list.name", new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				setValue("list" + text);
			}
		});
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("array[0].nestedIndexedBean.list[0].name", "a");
		binder.bind(pvs);
		Errors errors = binder.getErrors();
		errors.rejectValue("array[0].nestedIndexedBean.list[0].name", "NOT_ROD", "are you sure you're not Rod?");

		assertEquals(1, errors.getFieldErrorCount("array[0].nestedIndexedBean.list[0].name"));
		assertEquals("NOT_ROD", errors.getFieldError("array[0].nestedIndexedBean.list[0].name").getCode());
		assertEquals("NOT_ROD.tb.array[0].nestedIndexedBean.list[0].name",
				errors.getFieldError("array[0].nestedIndexedBean.list[0].name").getCodes()[0]);
		assertEquals("NOT_ROD.tb.array[0].nestedIndexedBean.list.name",
				errors.getFieldError("array[0].nestedIndexedBean.list[0].name").getCodes()[1]);
		assertEquals("NOT_ROD.tb.array.nestedIndexedBean.list.name",
				errors.getFieldError("array[0].nestedIndexedBean.list[0].name").getCodes()[2]);
		assertEquals("NOT_ROD.array[0].nestedIndexedBean.list[0].name",
				errors.getFieldError("array[0].nestedIndexedBean.list[0].name").getCodes()[3]);
		assertEquals("NOT_ROD.array[0].nestedIndexedBean.list.name",
				errors.getFieldError("array[0].nestedIndexedBean.list[0].name").getCodes()[4]);
		assertEquals("NOT_ROD.array.nestedIndexedBean.list.name",
				errors.getFieldError("array[0].nestedIndexedBean.list[0].name").getCodes()[5]);
		assertEquals("NOT_ROD.name", errors.getFieldError("array[0].nestedIndexedBean.list[0].name").getCodes()[6]);
		assertEquals("NOT_ROD.java.lang.String",
				errors.getFieldError("array[0].nestedIndexedBean.list[0].name").getCodes()[7]);
		assertEquals("NOT_ROD", errors.getFieldError("array[0].nestedIndexedBean.list[0].name").getCodes()[8]);
	}

	public void testEditorForNestedIndexedField() {
		IndexedTestBean tb = new IndexedTestBean();
		tb.getArray()[0].setNestedIndexedBean(new IndexedTestBean());
		tb.getArray()[1].setNestedIndexedBean(new IndexedTestBean());
		DataBinder binder = new DataBinder(tb, "tb");
		binder.registerCustomEditor(String.class, "array.nestedIndexedBean.list.name", new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				setValue("list" + text);
			}
			public String getAsText() {
				return ((String) getValue()).substring(4);
			}
		});
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("array[0].nestedIndexedBean.list[0].name", "test1");
		pvs.addPropertyValue("array[1].nestedIndexedBean.list[1].name", "test2");
		binder.bind(pvs);
		assertEquals("listtest1", ((TestBean) tb.getArray()[0].getNestedIndexedBean().getList().get(0)).getName());
		assertEquals("listtest2", ((TestBean) tb.getArray()[1].getNestedIndexedBean().getList().get(1)).getName());
		assertEquals("test1", binder.getErrors().getFieldValue("array[0].nestedIndexedBean.list[0].name"));
		assertEquals("test2", binder.getErrors().getFieldValue("array[1].nestedIndexedBean.list[1].name"));
	}

	public void testSpecificEditorForNestedIndexedField() {
		IndexedTestBean tb = new IndexedTestBean();
		tb.getArray()[0].setNestedIndexedBean(new IndexedTestBean());
		tb.getArray()[1].setNestedIndexedBean(new IndexedTestBean());
		DataBinder binder = new DataBinder(tb, "tb");
		binder.registerCustomEditor(String.class, "array[0].nestedIndexedBean.list.name", new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				setValue("list" + text);
			}
			public String getAsText() {
				return ((String) getValue()).substring(4);
			}
		});
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("array[0].nestedIndexedBean.list[0].name", "test1");
		pvs.addPropertyValue("array[1].nestedIndexedBean.list[1].name", "test2");
		binder.bind(pvs);
		assertEquals("listtest1", ((TestBean) tb.getArray()[0].getNestedIndexedBean().getList().get(0)).getName());
		assertEquals("test2", ((TestBean) tb.getArray()[1].getNestedIndexedBean().getList().get(1)).getName());
		assertEquals("test1", binder.getErrors().getFieldValue("array[0].nestedIndexedBean.list[0].name"));
		assertEquals("test2", binder.getErrors().getFieldValue("array[1].nestedIndexedBean.list[1].name"));
	}

	public void testInnerSpecificEditorForNestedIndexedField() {
		IndexedTestBean tb = new IndexedTestBean();
		tb.getArray()[0].setNestedIndexedBean(new IndexedTestBean());
		tb.getArray()[1].setNestedIndexedBean(new IndexedTestBean());
		DataBinder binder = new DataBinder(tb, "tb");
		binder.registerCustomEditor(String.class, "array.nestedIndexedBean.list[0].name", new PropertyEditorSupport() {