org.springframework.expression.spel.support.StandardTypeConverter Java Examples

The following examples show how to use org.springframework.expression.spel.support.StandardTypeConverter. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source Project: spring-analysis-note   Author: Vip-Augus   File: BooleanExpressionTests.java    License: MIT License 6 votes vote down vote up
@Test
public void testConvertAndHandleNull() { // SPR-9445
	// without null conversion
	evaluateAndCheckError("null or true", SpelMessage.TYPE_CONVERSION_ERROR, 0, "null", "boolean");
	evaluateAndCheckError("null and true", SpelMessage.TYPE_CONVERSION_ERROR, 0, "null", "boolean");
	evaluateAndCheckError("!null", SpelMessage.TYPE_CONVERSION_ERROR, 1, "null", "boolean");
	evaluateAndCheckError("null ? 'foo' : 'bar'", SpelMessage.TYPE_CONVERSION_ERROR, 0, "null", "boolean");

	// with null conversion (null -> false)
	GenericConversionService conversionService = new GenericConversionService() {
		@Override
		protected Object convertNullSource(TypeDescriptor sourceType, TypeDescriptor targetType) {
			return targetType.getType() == Boolean.class ? false : null;
		}
	};
	context.setTypeConverter(new StandardTypeConverter(conversionService));

	evaluate("null or true", Boolean.TRUE, Boolean.class, false);
	evaluate("null and true", Boolean.FALSE, Boolean.class, false);
	evaluate("!null", Boolean.TRUE, Boolean.class, false);
	evaluate("null ? 'foo' : 'bar'", "bar", String.class, false);
}
 
Example #2
Source Project: spring-analysis-note   Author: Vip-Augus   File: OpPlusTests.java    License: MIT License 6 votes vote down vote up
@Test
public void test_binaryPlusWithTimeConverted() {
	SimpleDateFormat format = new SimpleDateFormat("hh :--: mm :--: ss", Locale.ENGLISH);

	GenericConversionService conversionService = new GenericConversionService();
	conversionService.addConverter(Time.class, String.class, format::format);

	StandardEvaluationContext evaluationContextConverter = new StandardEvaluationContext();
	evaluationContextConverter.setTypeConverter(new StandardTypeConverter(conversionService));

	ExpressionState expressionState = new ExpressionState(evaluationContextConverter);
	Time time = new Time(new Date().getTime());

	VariableReference var = new VariableReference("timeVar", -1, -1);
	var.setValue(expressionState, time);

	StringLiteral n2 = new StringLiteral("\" is now\"", -1, -1, "\" is now\"");
	OpPlus o = new OpPlus(-1, -1, var, n2);
	TypedValue value = o.getValueInternal(expressionState);

	assertEquals(String.class, value.getTypeDescriptor().getObjectType());
	assertEquals(String.class, value.getTypeDescriptor().getType());
	assertEquals(format.format(time) + " is now", value.getValue());
}
 
Example #3
Source Project: java-technology-stack   Author: codeEngraver   File: BooleanExpressionTests.java    License: MIT License 6 votes vote down vote up
@Test
public void testConvertAndHandleNull() { // SPR-9445
	// without null conversion
	evaluateAndCheckError("null or true", SpelMessage.TYPE_CONVERSION_ERROR, 0, "null", "boolean");
	evaluateAndCheckError("null and true", SpelMessage.TYPE_CONVERSION_ERROR, 0, "null", "boolean");
	evaluateAndCheckError("!null", SpelMessage.TYPE_CONVERSION_ERROR, 1, "null", "boolean");
	evaluateAndCheckError("null ? 'foo' : 'bar'", SpelMessage.TYPE_CONVERSION_ERROR, 0, "null", "boolean");

	// with null conversion (null -> false)
	GenericConversionService conversionService = new GenericConversionService() {
		@Override
		protected Object convertNullSource(TypeDescriptor sourceType, TypeDescriptor targetType) {
			return targetType.getType() == Boolean.class ? false : null;
		}
	};
	context.setTypeConverter(new StandardTypeConverter(conversionService));

	evaluate("null or true", Boolean.TRUE, Boolean.class, false);
	evaluate("null and true", Boolean.FALSE, Boolean.class, false);
	evaluate("!null", Boolean.TRUE, Boolean.class, false);
	evaluate("null ? 'foo' : 'bar'", "bar", String.class, false);
}
 
Example #4
Source Project: spring4-understanding   Author: langtianya   File: BooleanExpressionTests.java    License: Apache License 2.0 6 votes vote down vote up
@Test
public void testConvertAndHandleNull() { // SPR-9445
	// without null conversion
	evaluateAndCheckError("null or true", SpelMessage.TYPE_CONVERSION_ERROR, 0, "null", "boolean");
	evaluateAndCheckError("null and true", SpelMessage.TYPE_CONVERSION_ERROR, 0, "null", "boolean");
	evaluateAndCheckError("!null", SpelMessage.TYPE_CONVERSION_ERROR, 1, "null", "boolean");
	evaluateAndCheckError("null ? 'foo' : 'bar'", SpelMessage.TYPE_CONVERSION_ERROR, 0, "null", "boolean");

	// with null conversion (null -> false)
	GenericConversionService conversionService = new GenericConversionService() {
		@Override
		protected Object convertNullSource(TypeDescriptor sourceType, TypeDescriptor targetType) {
			return targetType.getType() == Boolean.class ? false : null;
		}
	};
	eContext.setTypeConverter(new StandardTypeConverter(conversionService));

	evaluate("null or true", Boolean.TRUE, Boolean.class, false);
	evaluate("null and true", Boolean.FALSE, Boolean.class, false);
	evaluate("!null", Boolean.TRUE, Boolean.class, false);
	evaluate("null ? 'foo' : 'bar'", "bar", String.class, false);
}
 
Example #5
Source Project: springlets   Author: DISID   File: EntityExpressionSupport.java    License: Apache License 2.0 6 votes vote down vote up
private void registerConversionServiceInSpelExpressions(Expression parsedExpression) {
  if (conversionService == null) {
    return;
  }
  StandardTypeConverter converter = new StandardTypeConverter(conversionService);
  StandardEvaluationContext context = new StandardEvaluationContext();
  context.setTypeConverter(converter);
  setContextIfSpelExpression(parsedExpression, context);

  if (parsedExpression instanceof CompositeStringExpression) {
    CompositeStringExpression composite = (CompositeStringExpression) parsedExpression;
    for (Expression childExpresion : composite.getExpressions()) {
      setContextIfSpelExpression(childExpresion, context);
    }
  }
}
 
Example #6
Source Project: spring-analysis-note   Author: Vip-Augus   File: EvalTag.java    License: MIT License 5 votes vote down vote up
private EvaluationContext createEvaluationContext(PageContext pageContext) {
	StandardEvaluationContext context = new StandardEvaluationContext();
	context.addPropertyAccessor(new JspPropertyAccessor(pageContext));
	context.addPropertyAccessor(new MapAccessor());
	context.addPropertyAccessor(new EnvironmentAccessor());
	context.setBeanResolver(new BeanFactoryResolver(getRequestContext().getWebApplicationContext()));
	ConversionService conversionService = getConversionService(pageContext);
	if (conversionService != null) {
		context.setTypeConverter(new StandardTypeConverter(conversionService));
	}
	return context;
}
 
Example #7
Source Project: java-technology-stack   Author: codeEngraver   File: EvalTag.java    License: MIT License 5 votes vote down vote up
private EvaluationContext createEvaluationContext(PageContext pageContext) {
	StandardEvaluationContext context = new StandardEvaluationContext();
	context.addPropertyAccessor(new JspPropertyAccessor(pageContext));
	context.addPropertyAccessor(new MapAccessor());
	context.addPropertyAccessor(new EnvironmentAccessor());
	context.setBeanResolver(new BeanFactoryResolver(getRequestContext().getWebApplicationContext()));
	ConversionService conversionService = getConversionService(pageContext);
	if (conversionService != null) {
		context.setTypeConverter(new StandardTypeConverter(conversionService));
	}
	return context;
}
 
Example #8
Source Project: java-technology-stack   Author: codeEngraver   File: OpPlusTests.java    License: MIT License 5 votes vote down vote up
@Test
public void test_binaryPlusWithTimeConverted() {

	final SimpleDateFormat format = new SimpleDateFormat("hh :--: mm :--: ss", Locale.ENGLISH);

	GenericConversionService conversionService = new GenericConversionService();
	conversionService.addConverter(new Converter<Time, String>() {
		@Override
		public String convert(Time source) {
			return format.format(source);
		}
	});

	StandardEvaluationContext evaluationContextConverter = new StandardEvaluationContext();
	evaluationContextConverter.setTypeConverter(new StandardTypeConverter(conversionService));

	ExpressionState expressionState = new ExpressionState(evaluationContextConverter);

	Time time = new Time(new Date().getTime());

	VariableReference var = new VariableReference("timeVar", -1);
	var.setValue(expressionState, time);

	StringLiteral n2 = new StringLiteral("\" is now\"", -1, "\" is now\"");
	OpPlus o = new OpPlus(-1, var, n2);
	TypedValue value = o.getValueInternal(expressionState);

	assertEquals(String.class, value.getTypeDescriptor().getObjectType());
	assertEquals(String.class, value.getTypeDescriptor().getType());
	assertEquals(format.format(time) + " is now", value.getValue());
}
 
Example #9
Source Project: lams   Author: lamsfoundation   File: EvalTag.java    License: GNU General Public License v2.0 5 votes vote down vote up
private EvaluationContext createEvaluationContext(PageContext pageContext) {
	StandardEvaluationContext context = new StandardEvaluationContext();
	context.addPropertyAccessor(new JspPropertyAccessor(pageContext));
	context.addPropertyAccessor(new MapAccessor());
	context.addPropertyAccessor(new EnvironmentAccessor());
	context.setBeanResolver(new BeanFactoryResolver(getRequestContext().getWebApplicationContext()));
	ConversionService conversionService = getConversionService(pageContext);
	if (conversionService != null) {
		context.setTypeConverter(new StandardTypeConverter(conversionService));
	}
	return context;
}
 
Example #10
Source Project: spring4-understanding   Author: langtianya   File: EvalTag.java    License: Apache License 2.0 5 votes vote down vote up
private EvaluationContext createEvaluationContext(PageContext pageContext) {
	StandardEvaluationContext context = new StandardEvaluationContext();
	context.addPropertyAccessor(new JspPropertyAccessor(pageContext));
	context.addPropertyAccessor(new MapAccessor());
	context.addPropertyAccessor(new EnvironmentAccessor());
	context.setBeanResolver(new BeanFactoryResolver(getRequestContext().getWebApplicationContext()));
	ConversionService conversionService = getConversionService(pageContext);
	if (conversionService != null) {
		context.setTypeConverter(new StandardTypeConverter(conversionService));
	}
	return context;
}
 
Example #11
Source Project: spring4-understanding   Author: langtianya   File: OpPlusTests.java    License: Apache License 2.0 5 votes vote down vote up
@Test
public void test_binaryPlusWithTimeConverted() {

	final SimpleDateFormat format = new SimpleDateFormat("hh :--: mm :--: ss", Locale.ENGLISH);

	GenericConversionService conversionService = new GenericConversionService();
	conversionService.addConverter(new Converter<Time, String>() {
		@Override
		public String convert(Time source) {
			return format.format(source);
		}
	});

	StandardEvaluationContext evaluationContextConverter = new StandardEvaluationContext();
	evaluationContextConverter.setTypeConverter(new StandardTypeConverter(conversionService));

	ExpressionState expressionState = new ExpressionState(evaluationContextConverter);

	Time time = new Time(new Date().getTime());

	VariableReference var = new VariableReference("timeVar", -1);
	var.setValue(expressionState, time);

	StringLiteral n2 = new StringLiteral("\" is now\"", -1, "\" is now\"");
	OpPlus o = new OpPlus(-1, var, n2);
	TypedValue value = o.getValueInternal(expressionState);

	assertEquals(String.class, value.getTypeDescriptor().getObjectType());
	assertEquals(String.class, value.getTypeDescriptor().getType());
	assertEquals(format.format(time) + " is now", value.getValue());
}