Example usage for org.springframework.core.convert.support ConversionUtils invokeConverter

Introduction

In this page you can find the example usage for org.springframework.core.convert.support ConversionUtils invokeConverter.

Prototype

@Nullable
    public static Object invokeConverter(GenericConverter converter, @Nullable Object source,
            TypeDescriptor sourceType, TypeDescriptor targetType) 

Source Link

Usage

From source file:org.springframework.core.convert.support.GenericConversionService.java

public Object convert(Object source, TypeDescriptor sourceType, TypeDescriptor targetType) {
    assertNotNull(sourceType, targetType);
    if (logger.isDebugEnabled()) {
        logger.debug(//from   w w  w. j ava  2 s  . c o m
                "Converting value " + StylerUtils.style(source) + " of " + sourceType + " to " + targetType);
    }
    if (sourceType == TypeDescriptor.NULL) {
        Assert.isTrue(source == null, "The value must be null if sourceType == TypeDescriptor.NULL");
        Object result = convertNullSource(sourceType, targetType);
        if (logger.isDebugEnabled()) {
            logger.debug("Converted to " + StylerUtils.style(result));
        }
        return result;
    }
    if (targetType == TypeDescriptor.NULL) {
        logger.debug("Converted to null");
        return null;
    }
    Assert.isTrue(source == null || sourceType.getObjectType().isInstance(source));
    GenericConverter converter = getConverter(sourceType, targetType);
    if (converter == null) {
        if (source == null || sourceType.isAssignableTo(targetType)) {
            logger.debug("No converter found - returning assignable source object as-is");
            return source;
        } else {
            throw new ConverterNotFoundException(sourceType, targetType);
        }
    }
    Object result = ConversionUtils.invokeConverter(converter, source, sourceType, targetType);
    if (logger.isDebugEnabled()) {
        logger.debug("Converted to " + StylerUtils.style(result));
    }
    return result;
}

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