Java TypeConverter类代码示例

import net.sourceforge.stripes.validation.TypeConverter; //导入依赖的package包/类
@Test(groups="slow")
public void testSimpleFind() throws Exception {
    // Because the tests package depends on stripes, it's safe to assume that
    // there will be some TypeConverter subclasses in the classpath
    ResolverUtil<TypeConverter<?>> resolver = new ResolverUtil<TypeConverter<?>>();
    resolver.findImplementations(TypeConverter.class, "net");
    Set<Class<? extends TypeConverter<?>>> impls = resolver.getClasses();

    // Check on a few random converters
    Assert.assertTrue(impls.contains(BooleanTypeConverter.class),
                      "BooleanTypeConverter went missing.");
    Assert.assertTrue(impls.contains(DateTypeConverter.class),
                      "DateTypeConverter went missing.");
    Assert.assertTrue(impls.contains(BooleanTypeConverter.class),
                      "ShortTypeConverter went missing.");

    Assert.assertTrue(impls.size() >= 10,
                      "Did not find all the built in TypeConverters.");
}
 

import net.sourceforge.stripes.validation.TypeConverter; //导入依赖的package包/类
@Test(groups="fast")
public void testMoreSpecificFind() throws Exception {
    // Because the tests package depends on stripes, it's safe to assume that
    // there will be some TypeConverter subclasses in the classpath
    ResolverUtil<TypeConverter<?>> resolver = new ResolverUtil<TypeConverter<?>>();
    resolver.findImplementations(TypeConverter.class, "net.sourceforge.stripes.validation");
    Set<Class<? extends TypeConverter<?>>> impls = resolver.getClasses();

    // Check on a few random converters
    Assert.assertTrue(impls.contains(BooleanTypeConverter.class),
                      "BooleanTypeConverter went missing.");
    Assert.assertTrue(impls.contains(DateTypeConverter.class),
                      "DateTypeConverter went missing.");
    Assert.assertTrue(impls.contains(BooleanTypeConverter.class),
                      "ShortTypeConverter went missing.");

    Assert.assertTrue(impls.size() >= 10,
                      "Did not find all the built in TypeConverters.");
}
 

import net.sourceforge.stripes.validation.TypeConverter; //导入依赖的package包/类
/**
    * Attempts to convert the key to from the expression node to the correct type
    * as determined by reflection (using generics to find the Map key type). If generics
    * information is not present then the type found in the expression is used (String, int etc.).
    *
    * @param evaluation the current node evaluation
    * @return the key to use when interacting with the Map
    */
   @SuppressWarnings("unchecked")
protected Object getKey(NodeEvaluation evaluation) {
       Class declaredType = evaluation.getKeyType();
       Class nodeType     = evaluation.getNode().getTypedValue().getClass();

       if (nodeType.equals(declaredType) || declaredType == null) {
           return evaluation.getNode().getTypedValue();
       }
       else {
           try {
               // Collect the things needed to grab a type converter
               String stringKey = evaluation.getNode().getStringValue();
               ActionBean bean = (ActionBean) evaluation.getExpressionEvaluation().getBean();
               Locale locale = bean.getContext().getLocale();
               Collection errors = new ArrayList<ValidationError>();

               TypeConverter tc = StripesFilter.getConfiguration()
                       .getTypeConverterFactory().getTypeConverter(declaredType, locale);

               // If there is a type converter, try using it!
               if (tc != null) {
                   Object retval = tc.convert(stringKey, declaredType, errors);
                   if (errors.size() == 0) return retval;
               }
               // Otherwise look for a String constructor
               else {
                   return StripesFilter.getConfiguration().getObjectFactory()
                           .constructor(declaredType, String.class).newInstance(stringKey);
               }
           }
           catch (Exception e) {
               log.warn("Exception while converting Map key to appropriate type. Key: ",
                        evaluation.getNode().getStringValue());
           }

           // Return the original key if we couldn't type convert it
           return evaluation.getNode().getTypedValue();
       }
   }
 

import net.sourceforge.stripes.validation.TypeConverter; //导入依赖的package包/类
@SuppressWarnings("rawtypes")
@Override

public TypeConverter getInstance(Class<? extends TypeConverter> clazz,
		Locale locale) throws Exception {
	TypeConverter converter = super.getInstance(clazz, locale);
	SpringHelper.injectBeans(converter,
			ContextLoader.getCurrentWebApplicationContext());
	return converter;
}
 

import net.sourceforge.stripes.validation.TypeConverter; //导入依赖的package包/类
public void setConverter(Class<? extends TypeConverter<?>> converter) {
    this.converter = converter;
    this.stubTouched = true;
}
 

import net.sourceforge.stripes.validation.TypeConverter; //导入依赖的package包/类
@SuppressWarnings("rawtypes")
public Class<? extends TypeConverter> converter() {
    return converter;
}