Examples with Converter com.fasterxml.jackson.databind.util.Converter used on opensource projects

Example 1 with Converter

use of com.fasterxml.jackson.databind.util.Converter in project jackson-databind by FasterXML.

the class DatabindContext method converterInstance.

/**
     * Helper method to use to construct a {@link Converter}, given a definition
     * that may be either actual converter instance, or Class for instantiating one.
     * 
     * @since 2.2
     */
@SuppressWarnings("unchecked")
public Converter<Object, Object> converterInstance(Annotated annotated, Object converterDef) throws JsonMappingException {
    if (converterDef == null) {
        return null;
    }
    if (converterDef instanceof Converter<?, ?>) {
        return (Converter<Object, Object>) converterDef;
    }
    if (!(converterDef instanceof Class)) {
        throw new IllegalStateException("AnnotationIntrospector returned Converter definition of type " + converterDef.getClass().getName() + "; expected type Converter or Class<Converter> instead");
    }
    Class<?> converterClass = (Class<?>) converterDef;
    // there are some known "no class" markers to consider too:
    if (converterClass == Converter.None.class || ClassUtil.isBogusClass(converterClass)) {
        return null;
    }
    if (!Converter.class.isAssignableFrom(converterClass)) {
        throw new IllegalStateException("AnnotationIntrospector returned Class " + converterClass.getName() + "; expected Class<Converter>");
    }
    final MapperConfig<?> config = getConfig();
    HandlerInstantiator hi = config.getHandlerInstantiator();
    Converter<?, ?> conv = (hi == null) ? null : hi.converterInstance(config, annotated, converterClass);
    if (conv == null) {
        conv = (Converter<?, ?>) ClassUtil.createInstance(converterClass, config.canOverrideAccessModifiers());
    }
    return (Converter<Object, Object>) conv;
}

Example 2 with Converter

use of com.fasterxml.jackson.databind.util.Converter in project jackson-databind by FasterXML.

the class BasicBeanDescription method _createConverter.

/*
    /**********************************************************
    /* Helper methods, other
    /**********************************************************
     */
@SuppressWarnings("unchecked")
protected Converter<Object, Object> _createConverter(Object converterDef) {
    if (converterDef == null) {
        return null;
    }
    if (converterDef instanceof Converter<?, ?>) {
        return (Converter<Object, Object>) converterDef;
    }
    if (!(converterDef instanceof Class)) {
        throw new IllegalStateException("AnnotationIntrospector returned Converter definition of type " + converterDef.getClass().getName() + "; expected type Converter or Class<Converter> instead");
    }
    Class<?> converterClass = (Class<?>) converterDef;
    // there are some known "no class" markers to consider too:
    if (converterClass == Converter.None.class || ClassUtil.isBogusClass(converterClass)) {
        return null;
    }
    if (!Converter.class.isAssignableFrom(converterClass)) {
        throw new IllegalStateException("AnnotationIntrospector returned Class " + converterClass.getName() + "; expected Class<Converter>");
    }
    HandlerInstantiator hi = _config.getHandlerInstantiator();
    Converter<?, ?> conv = (hi == null) ? null : hi.converterInstance(_config, _classInfo, converterClass);
    if (conv == null) {
        conv = (Converter<?, ?>) ClassUtil.createInstance(converterClass, _config.canOverrideAccessModifiers());
    }
    return (Converter<Object, Object>) conv;
}