Examples with TypeDescriptor org.springframework.core.convert.TypeDescriptor used on opensource projects

Example 81 with TypeDescriptor

use of org.springframework.core.convert.TypeDescriptor in project spring-framework by spring-projects.

the class ReflectivePropertyAccessor method read.

@Override
public TypedValue read(EvaluationContext context, Object target, String name) throws AccessException {
    if (target == null) {
        throw new AccessException("Cannot read property of null target");
    }
    Class<?> type = (target instanceof Class ? (Class<?>) target : target.getClass());
    if (type.isArray() && name.equals("length")) {
        if (target instanceof Class) {
            throw new AccessException("Cannot access length on array class itself");
        }
        return new TypedValue(Array.getLength(target));
    }
    PropertyCacheKey cacheKey = new PropertyCacheKey(type, name, target instanceof Class);
    InvokerPair invoker = this.readerCache.get(cacheKey);
    lastReadInvokerPair = invoker;
    if (invoker == null || invoker.member instanceof Method) {
        Method method = (Method) (invoker != null ? invoker.member : null);
        if (method == null) {
            method = findGetterForProperty(name, type, target);
            if (method != null) {
                // TODO remove the duplication here between canRead and read
                // Treat it like a property...
                // The readerCache will only contain gettable properties (let's not worry about setters for now).
                Property property = new Property(type, method, null);
                TypeDescriptor typeDescriptor = new TypeDescriptor(property);
                invoker = new InvokerPair(method, typeDescriptor);
                lastReadInvokerPair = invoker;
                this.readerCache.put(cacheKey, invoker);
            }
        }
        if (method != null) {
            try {
                ReflectionUtils.makeAccessible(method);
                Object value = method.invoke(target);
                return new TypedValue(value, invoker.typeDescriptor.narrow(value));
            } catch (Exception ex) {
                throw new AccessException("Unable to access property '" + name + "' through getter method", ex);
            }
        }
    }
    if (invoker == null || invoker.member instanceof Field) {
        Field field = (Field) (invoker == null ? null : invoker.member);
        if (field == null) {
            field = findField(name, type, target);
            if (field != null) {
                invoker = new InvokerPair(field, new TypeDescriptor(field));
                lastReadInvokerPair = invoker;
                this.readerCache.put(cacheKey, invoker);
            }
        }
        if (field != null) {
            try {
                ReflectionUtils.makeAccessible(field);
                Object value = field.get(target);
                return new TypedValue(value, invoker.typeDescriptor.narrow(value));
            } catch (Exception ex) {
                throw new AccessException("Unable to access field '" + name + "'", ex);
            }
        }
    }
    throw new AccessException("Neither getter method nor field found for property '" + name + "'");
}

Example 82 with TypeDescriptor

use of org.springframework.core.convert.TypeDescriptor in project spring-framework by spring-projects.

the class SpelExpression method getValueType.

@Override
public Class<?> getValueType(EvaluationContext context, Object rootObject) throws EvaluationException {
    ExpressionState expressionState = new ExpressionState(context, toTypedValue(rootObject), this.configuration);
    TypeDescriptor typeDescriptor = this.ast.getValueInternal(expressionState).getTypeDescriptor();
    return (typeDescriptor != null ? typeDescriptor.getType() : null);
}

Example 83 with TypeDescriptor

use of org.springframework.core.convert.TypeDescriptor in project spring-framework by spring-projects.

the class FormattingConversionServiceFactoryBeanTests method testCustomFormatter.

@Test
public void testCustomFormatter() throws Exception {
    FormattingConversionServiceFactoryBean factory = new FormattingConversionServiceFactoryBean();
    Set<Object> formatters = new HashSet<>();
    formatters.add(new TestBeanFormatter());
    formatters.add(new SpecialIntAnnotationFormatterFactory());
    factory.setFormatters(formatters);
    factory.afterPropertiesSet();
    FormattingConversionService fcs = factory.getObject();
    TestBean testBean = fcs.convert("5", TestBean.class);
    assertEquals(5, testBean.getSpecialInt());
    assertEquals("5", fcs.convert(testBean, String.class));
    TypeDescriptor descriptor = new TypeDescriptor(TestBean.class.getDeclaredField("specialInt"));
    Object value = fcs.convert(":5", TypeDescriptor.valueOf(String.class), descriptor);
    assertEquals(5, value);
    value = fcs.convert(5, descriptor, TypeDescriptor.valueOf(String.class));
    assertEquals(":5", value);
}

Example 84 with TypeDescriptor

use of org.springframework.core.convert.TypeDescriptor in project spring-framework by spring-projects.

the class FormattingConversionServiceFactoryBeanTests method testDefaultFormattersOn.

@Test
public void testDefaultFormattersOn() throws Exception {
    FormattingConversionServiceFactoryBean factory = new FormattingConversionServiceFactoryBean();
    factory.afterPropertiesSet();
    FormattingConversionService fcs = factory.getObject();
    TypeDescriptor descriptor = new TypeDescriptor(TestBean.class.getDeclaredField("pattern"));
    LocaleContextHolder.setLocale(Locale.GERMAN);
    try {
        Object value = fcs.convert("15,00", TypeDescriptor.valueOf(String.class), descriptor);
        assertEquals(15.0, value);
        value = fcs.convert(15.0, descriptor, TypeDescriptor.valueOf(String.class));
        assertEquals("15", value);
    } finally {
        LocaleContextHolder.resetLocaleContext();
    }
}

Example 85 with TypeDescriptor

use of org.springframework.core.convert.TypeDescriptor in project spring-framework by spring-projects.

the class FormattingConversionServiceFactoryBeanTests method testDefaultFormattersOff.

@Test
public void testDefaultFormattersOff() throws Exception {
    FormattingConversionServiceFactoryBean factory = new FormattingConversionServiceFactoryBean();
    factory.setRegisterDefaultFormatters(false);
    factory.afterPropertiesSet();
    FormattingConversionService fcs = factory.getObject();
    TypeDescriptor descriptor = new TypeDescriptor(TestBean.class.getDeclaredField("pattern"));
    try {
        fcs.convert("15,00", TypeDescriptor.valueOf(String.class), descriptor);
        fail("This format should not be parseable");
    } catch (ConversionFailedException ex) {
        assertTrue(ex.getCause() instanceof NumberFormatException);
    }
}