Example usage for java.lang Class getEnumConstants

Introduction

In this page you can find the example usage for java.lang Class getEnumConstants.

Prototype

public T[] getEnumConstants() 

Source Link

Document

Returns the elements of this enum class or null if this Class object does not represent an enum type.

Usage

From source file:org.force66.beantester.valuegens.ValueGeneratorFactory.java

public ValueGenerator<?> forClass(Class<?> targetClass) {
    Validate.notNull(targetClass, "Null class not allowed");
    ValueGenerator<?> generator = registeredGeneratorMap.get(targetClass);
    if (generator == null) {
        for (ValueGenerator<?> gen : STOCK_GENERATORS) {
            if (gen.canGenerate(targetClass)) {
                registeredGeneratorMap.put(targetClass, gen);
                return gen;
            }//  w w w .  j av  a 2 s. co  m
        }
    } else {
        return generator;
    }

    if (targetClass.isInterface()) {
        InterfaceValueGenerator gen = new InterfaceValueGenerator(targetClass);
        this.registerGenerator(targetClass, gen);
        return gen;
    } else if (Modifier.isAbstract(targetClass.getModifiers())) {
        return null; // generator not possible on abstract classes
    } else if (targetClass.isEnum()) {
        return registerGenericGenerator(targetClass, targetClass.getEnumConstants());
    } else if (targetClass.isArray()) {
        ArrayValueGenerator gen = new ArrayValueGenerator(targetClass, this);
        this.registerGenerator(targetClass, gen);
        return gen;
    } else if (Class.class.equals(targetClass)) {
        return registerGenericGenerator(targetClass, new Object[] { Object.class });
    } else {
        return registerGenericGenerator(targetClass,
                new Object[] { InstantiationUtils.safeNewInstance(this, targetClass) });
    }

}

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From source file:com.jkoolcloud.tnt4j.streams.utils.Utils.java

/**
 * Returns enumeration entry based on entry name value ignoring case.
 *
 * @param enumClass//w ww. j  ava 2s.  c  o  m
 *            enumeration instance class
 * @param name
 *            name of enumeration entry
 * @param <E>
 *            type of enumeration
 * @return enumeration object having provided name
 * @throws IllegalArgumentException
 *             if name is not a valid enumeration entry name or is {@code null}
 */
public static <E extends Enum<E>> E valueOfIgnoreCase(Class<E> enumClass, String name)
        throws IllegalArgumentException {
    if (StringUtils.isEmpty(name)) {
        throw new IllegalArgumentException(
                StreamsResources.getString(StreamsResources.RESOURCE_BUNDLE_NAME, "Utils.name.empty"));
    }

    E[] enumConstants = enumClass.getEnumConstants();

    for (E ec : enumConstants) {
        if (ec.name().equalsIgnoreCase(name)) {
            return ec;
        }
    }

    throw new IllegalArgumentException(StreamsResources.getStringFormatted(
            StreamsResources.RESOURCE_BUNDLE_NAME, "Utils.no.enum.constant", name, enumClass.getSimpleName()));
}

---

From source file:com.jcwhatever.nucleus.internal.managed.commands.Arguments.java

@Override
public <T extends Enum<T>> T getEnum(String parameterName, Class<T> enumClass) throws InvalidArgumentException {
    PreCon.notNullOrEmpty(parameterName);
    PreCon.notNull(enumClass);/*from   ww w.  jav a2s .co  m*/

    return getEnum(parameterName, enumClass, enumClass.getEnumConstants());
}

---

From source file:org.apache.syncope.client.console.panels.BeanPanel.java

@SuppressWarnings({ "unchecked", "rawtypes" })
private FieldPanel buildSinglePanel(final Serializable bean, final Class<?> type, final String fieldName,
        final String id) {
    FieldPanel result = null;//  www  .  j a  va 2  s .com
    PropertyModel model = new PropertyModel(bean, fieldName);
    if (ClassUtils.isAssignable(Boolean.class, type)) {
        result = new AjaxCheckBoxPanel(id, fieldName, model);
    } else if (ClassUtils.isAssignable(Number.class, type)) {
        result = new AjaxSpinnerFieldPanel.Builder<>().build(id, fieldName,
                (Class<Number>) ClassUtils.resolvePrimitiveIfNecessary(type), model);
    } else if (Date.class.equals(type)) {
        result = new AjaxDateTimeFieldPanel(id, fieldName, model, SyncopeConstants.DEFAULT_DATE_PATTERN);
    } else if (type.isEnum()) {
        result = new AjaxDropDownChoicePanel(id, fieldName, model)
                .setChoices(Arrays.asList(type.getEnumConstants()));
    }

    // treat as String if nothing matched above
    if (result == null) {
        result = new AjaxTextFieldPanel(id, fieldName, model);
    }

    result.hideLabel();
    return result;
}

---

From source file:org.eclipse.wb.core.editor.actions.assistant.AbstractAssistantPage.java

/**
 * Creates {@link Group} for choosing one of the enum values for property.
 *///from  ww w. j a v  a 2s .  c o  m
protected final Group addEnumProperty(Composite parent, String property, String title, String enumClassName) {
    Object[][] titleAndValueArray;
    ClassLoader classLoader = GlobalState.getClassLoader();
    try {
        Class<?> enumClass = classLoader.loadClass(enumClassName);
        if (enumClass.isEnum()) {
            Enum<?>[] constants = (Enum<?>[]) enumClass.getEnumConstants();
            titleAndValueArray = new Object[constants.length][2];
            for (int i = 0; i < constants.length; i++) {
                Enum<?> constantValue = constants[i];
                titleAndValueArray[i][0] = constantValue.name();
                titleAndValueArray[i][1] = constantValue;
            }
        } else {
            titleAndValueArray = new Object[][] { {} };
        }
        return addChoiceProperty(parent, property, title, titleAndValueArray);
    } catch (ClassNotFoundException e) {
        DesignerPlugin.log(e);
        return new Group(parent, SWT.NONE);
    }
}

---

From source file:org.rythmengine.RythmEngine.java

public static ShutdownService getShutdownService(boolean isGaeAvailable) {
    if (!isGaeAvailable) {
        return DefaultShutdownService.INSTANCE;
    }//from  w ww .  j ava  2  s. c  o  m

    try {
        String classname = "org.rythmengine.GaeShutdownService";
        Class clazz = Class.forName(classname);
        Object[] oa = clazz.getEnumConstants();
        ShutdownService result = (ShutdownService) oa[0];
        return result;
    } catch (Throwable t) {
        // Nothing to do
    }
    return DefaultShutdownService.INSTANCE;
}

---

From source file:org.apache.syncope.console.pages.ReportletConfModalPage.java

@SuppressWarnings({ "unchecked", "rawtypes" })
private FieldPanel buildSinglePanel(final Class<?> type, final String fieldName, final String id) {
    FieldPanel result = null;//  ww w. j a  v a 2  s  .  co m
    PropertyModel model = new PropertyModel(ReportletConfModalPage.this.reportletConf, fieldName);
    if (ClassUtils.isAssignable(Boolean.class, type)) {
        result = new AjaxCheckBoxPanel(id, fieldName, model);
    } else if (ClassUtils.isAssignable(Number.class, type)) {
        result = new SpinnerFieldPanel<Number>(id, fieldName, (Class<Number>) type, model, null, null);
    } else if (Date.class.equals(type)) {
        result = new DateTimeFieldPanel(id, fieldName, model, SyncopeConstants.DEFAULT_DATE_PATTERN);
    } else if (type.isEnum()) {
        result = new AjaxDropDownChoicePanel(id, fieldName, model)
                .setChoices(Arrays.asList(type.getEnumConstants()));
    }

    // treat as String if nothing matched above
    if (result == null) {
        result = new AjaxTextFieldPanel(id, fieldName, model);
    }

    return result;
}

---

From source file:org.apache.syncope.client.console.pages.ReportletConfModalPage.java

@SuppressWarnings({ "unchecked", "rawtypes" })
private FieldPanel buildSinglePanel(final Class<?> type, final String fieldName, final String id) {
    FieldPanel result = null;/*from   w ww. ja va  2  s.c  o  m*/
    PropertyModel model = new PropertyModel(ReportletConfModalPage.this.reportletConf, fieldName);
    if (ClassUtils.isAssignable(Boolean.class, type)) {
        result = new AjaxCheckBoxPanel(id, fieldName, model);
    } else if (ClassUtils.isAssignable(Number.class, type)) {
        result = new SpinnerFieldPanel<Number>(id, fieldName,
                (Class<Number>) ClassUtils.resolvePrimitiveIfNecessary(type), model, null, null);
    } else if (Date.class.equals(type)) {
        result = new DateTimeFieldPanel(id, fieldName, model, SyncopeConstants.DEFAULT_DATE_PATTERN);
    } else if (type.isEnum()) {
        result = new AjaxDropDownChoicePanel(id, fieldName, model)
                .setChoices(Arrays.asList(type.getEnumConstants()));
    }

    // treat as String if nothing matched above
    if (result == null) {
        result = new AjaxTextFieldPanel(id, fieldName, model);
    }

    return result;
}

---

From source file:com.jhkt.playgroundArena.db.nosql.mongodb.beans.AbstractDocument.java

private final static Object convertBacktoClassInstanceHelper(DBObject dBObject) {

    Object returnValue = null;//from www .  j  a v a  2 s. c om

    try {
        String className = dBObject.get(JPAConstants.CONVERTER_CLASS.CLASS.name()).toString();
        Class<?> classCheck = Class.forName(className);

        if (AbstractDocument.class.isAssignableFrom(classCheck)) {
            Class<? extends AbstractDocument> classToConvertTo = classCheck.asSubclass(AbstractDocument.class);
            AbstractDocument dInstance = classToConvertTo.newInstance();

            for (String key : dBObject.keySet()) {
                Object value = dBObject.get(key);

                char[] propertyChars = key.toCharArray();
                String methodMain = String.valueOf(propertyChars[0]).toUpperCase() + key.substring(1);
                String methodName = "set" + methodMain;
                String getMethodName = "get" + methodMain;

                if (key.equals(JPAConstants.CONVERTER_CLASS.CLASS.name())) {
                    continue;
                }

                if (value instanceof BasicDBObject) {
                    value = convertBacktoClassInstanceHelper(BasicDBObject.class.cast(value));
                }

                try {
                    Method getMethod = classToConvertTo.getMethod(getMethodName);
                    Class<?> getReturnType = getMethod.getReturnType();
                    Method method = classToConvertTo.getMethod(methodName, getReturnType);

                    if (getMethod.isAnnotationPresent(IDocumentKeyValue.class)) {
                        method.invoke(dInstance, value);
                    }
                } catch (NoSuchMethodException nsMe) {
                    _log.warn("Within convertBacktoClassInstance, following method was not found " + methodName,
                            nsMe);
                }

            }

            returnValue = dInstance;

        } else if (Enum.class.isAssignableFrom(classCheck)) {

            List<?> constants = Arrays.asList(classCheck.getEnumConstants());
            String name = String.class.cast(dBObject.get(JPAConstants.CONVERTER_CLASS.CONTENT.name()));
            for (Object constant : constants) {
                if (constant.toString().equals(name)) {
                    returnValue = constant;
                }
            }

        } else if (Collection.class.isAssignableFrom(classCheck)) {

            @SuppressWarnings("unchecked")
            Class<? extends Collection<? super Object>> classToConvertTo = (Class<? extends Collection<? super Object>>) classCheck;
            Collection<? super Object> cInstance = classToConvertTo.newInstance();

            BasicDBList bDBList = (BasicDBList) dBObject.get(JPAConstants.CONVERTER_CLASS.CONTENT.name());
            cInstance.addAll(bDBList);

            returnValue = cInstance;

        } else if (Map.class.isAssignableFrom(classCheck)) {

            @SuppressWarnings("unchecked")
            Class<? extends Map<String, ? super Object>> classToConvertTo = (Class<? extends Map<String, ? super Object>>) classCheck;
            Map<String, ? super Object> mInstance = classToConvertTo.newInstance();

            BasicDBObject mapObject = (BasicDBObject) dBObject.get(JPAConstants.CONVERTER_CLASS.CONTENT.name());
            mInstance.putAll(mapObject);

            returnValue = mInstance;

        }

    } catch (Exception e) {
        throw new RuntimeException(e);
    }

    return returnValue;
}

---

From source file:io.apiman.manager.api.es.EsMarshallingTest.java

/**
 * Fabricates a new instance of the given bean type.  Uses reflection to figure
 * out all the fields and assign generated values for each.
 *//*w  w  w.  j  av  a 2 s . c  o  m*/
private static <T> T createBean(Class<T> beanClass) throws InstantiationException, IllegalAccessException,
        InvocationTargetException, NoSuchMethodException, SecurityException, ClassNotFoundException {
    T bean = beanClass.newInstance();
    Map<String, String> beanProps = BeanUtils.describe(bean);
    for (String key : beanProps.keySet()) {
        try {
            Field declaredField = beanClass.getDeclaredField(key);
            Class<?> fieldType = declaredField.getType();
            if (fieldType == String.class) {
                BeanUtils.setProperty(bean, key, StringUtils.upperCase(key));
            } else if (fieldType == Boolean.class || fieldType == boolean.class) {
                BeanUtils.setProperty(bean, key, Boolean.TRUE);
            } else if (fieldType == Date.class) {
                BeanUtils.setProperty(bean, key, new Date(1));
            } else if (fieldType == Long.class || fieldType == long.class) {
                BeanUtils.setProperty(bean, key, 17L);
            } else if (fieldType == Integer.class || fieldType == long.class) {
                BeanUtils.setProperty(bean, key, 11);
            } else if (fieldType == Set.class) {
                // Initialize to a linked hash set so that order is maintained.
                BeanUtils.setProperty(bean, key, new LinkedHashSet());

                Type genericType = declaredField.getGenericType();
                String typeName = genericType.getTypeName();
                String typeClassName = typeName.substring(14, typeName.length() - 1);
                Class<?> typeClass = Class.forName(typeClassName);
                Set collection = (Set) BeanUtilsBean.getInstance().getPropertyUtils().getProperty(bean, key);
                populateSet(collection, typeClass);
            } else if (fieldType == Map.class) {
                Map<String, String> map = new LinkedHashMap<String, String>();
                map.put("KEY-1", "VALUE-1");
                map.put("KEY-2", "VALUE-2");
                BeanUtils.setProperty(bean, key, map);
            } else if (fieldType.isEnum()) {
                BeanUtils.setProperty(bean, key, fieldType.getEnumConstants()[0]);
            } else if (fieldType.getPackage() != null
                    && fieldType.getPackage().getName().startsWith("io.apiman.manager.api.beans")) {
                Object childBean = createBean(fieldType);
                BeanUtils.setProperty(bean, key, childBean);
            } else {
                throw new IllegalAccessException(
                        "Failed to handle property named [" + key + "] type: " + fieldType.getSimpleName());
            }
            //            String capKey = StringUtils.capitalize(key);
            //            System.out.println(key);;
        } catch (NoSuchFieldException e) {
            // Skip it - there is not really a bean property with this name!
        }
    }
    return bean;
}

---

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