Example usage for java.lang.reflect ParameterizedType getRawType

Introduction

In this page you can find the example usage for java.lang.reflect ParameterizedType getRawType.

Prototype

Type getRawType();

Source Link

Document

Returns the Type object representing the class or interface that declared this type.

Usage

From source file:org.romaframework.core.schema.SchemaHelper.java

/**
 * Return the generic type if iType uses Java5+ Generics.
 * // w w w  .j  a v  a2s. c  o m
 * @param iType
 *          Type with generics
 * @return Generic Class<?> if any
 */
public static Class<?> getGenericClass(Type iType) {
    // CHECK IF IT'S A PARAMETIZERED TYPE
    if (!(iType instanceof ParameterizedType)) {
        return null;
    }

    Class<?> returnClass = null;

    // list the raw type information
    ParameterizedType ptype = (ParameterizedType) iType;
    Type rtype = ptype.getRawType();

    if (!(rtype instanceof Class<?>)) {
        // NO CLASS: RETURN NULL
        return null;
    }

    Type[] targs = ptype.getActualTypeArguments();

    if (targs == null || targs.length == 0) {
        return null;
    }

    Class<?> classType = (Class<?>) rtype;

    try {
        if (classType.isArray()) {
            returnClass = (Class<?>) targs[0];
        } else if (java.util.Collection.class.isAssignableFrom((Class<?>) rtype)) {
            returnClass = resolveClassFromType(targs[0], null);
            if (returnClass == null)
                returnClass = Object.class;

        } else if (java.util.Map.class.isAssignableFrom((Class<?>) rtype)) {
            returnClass = classType.getDeclaredClasses()[0];
        } else if (targs[0] instanceof Class<?>) {
            return (Class<?>) targs[0];
        }
    } catch (ClassCastException e) {
        throw new ConfigurationException(
                "Cannot determine embedded type for " + iType + ". Embedded class not found", e);
    }

    return returnClass;
}

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From source file:ductive.console.commands.register.spring.ArgumentParserBeanPostProcessor.java

@Override
public Object postProcessAfterInitialization(final Object bean, String beanName) throws BeansException {
    ReflectionUtils.doWithMethods(bean.getClass(), new MethodCallback() {
        @Override/*from   w w  w  . ja  v  a2s  .c om*/
        public void doWith(Method method) throws IllegalArgumentException, IllegalAccessException {
            ArgParser argParser = AnnotationUtils.findAnnotation(method, ArgParser.class);
            if (argParser == null)
                return;

            String qualifier = StringUtils.defaultIfEmpty(argParser.value(), null);

            if (!void.class.equals(argParser.bind())) {
                argParserRegistry.register(argParser.bind(), qualifier, bean, method);
                return;
            }

            Type genericReturnType = method.getGenericReturnType();
            Validate.isTrue(ParameterizedType.class.isInstance(genericReturnType),
                    String.format(
                            "method %s: return type of parser generator method must be a subclass of %s<?>",
                            method, Parser.class.getCanonicalName()));

            ParameterizedType pt = ParameterizedType.class.cast(genericReturnType);
            Validate.isTrue(Parser.class.isAssignableFrom((Class<?>) pt.getRawType()),
                    String.format(
                            "method %s: return type of parser generator method must be a subclass of %s<?>",
                            method, Parser.class.getCanonicalName()));

            Type[] genericParams = pt.getActualTypeArguments();
            Validate.isTrue(genericParams.length == 1);

            argParserRegistry.register((Class<?>) genericParams[0], qualifier, bean, method);
        }

    });
    return bean;
}

---

From source file:org.apache.servicecomb.swagger.invocation.converter.ConverterMgr.java

protected Converter findCollectionToArray(Type src, Type target) {
    if (ParameterizedType.class.isAssignableFrom(src.getClass()) && target.getClass().equals(Class.class)) {
        ParameterizedType srcType = (ParameterizedType) src;
        Class<?> srcCls = (Class<?>) srcType.getRawType();
        Class<?> targetCls = (Class<?>) target;

        if (Collection.class.isAssignableFrom(srcCls) && targetCls.isArray()
                && srcType.getActualTypeArguments()[0].equals(targetCls.getComponentType())) {
            Converter converter = collectionToArrayMap.computeIfAbsent(target,
                    k -> new SameElementCollectionToArray(targetCls.getComponentType()));
            return converter;
        }//from  ww  w  .  ja va 2s. co m
    }

    return null;
}

---

From source file:io.servicecomb.swagger.invocation.converter.ConverterMgr.java

protected Converter findCollectionToArray(Type src, Type target) {
    if (ParameterizedType.class.isAssignableFrom(src.getClass()) && target.getClass().equals(Class.class)) {
        ParameterizedType srcType = (ParameterizedType) src;
        Class<?> srcCls = (Class<?>) srcType.getRawType();
        Class<?> targetCls = (Class<?>) target;

        if (Collection.class.isAssignableFrom(srcCls) && targetCls.isArray()
                && srcType.getActualTypeArguments()[0].equals(targetCls.getComponentType())) {
            Converter converter = collectionToArrayMap.get(target);
            if (converter == null) {
                converter = new SameElementCollectionToArray(targetCls.getComponentType());
                collectionToArrayMap.put(target, converter);
            }//  w w  w .j  av a  2 s.  c om
            return converter;
        }
    }

    return null;
}

---

From source file:io.servicecomb.swagger.invocation.converter.ConverterMgr.java

protected Converter findArrayToCollection(Type src, Type target) {
    if (src.getClass().equals(Class.class) && ParameterizedType.class.isAssignableFrom(target.getClass())) {
        Class<?> srcCls = (Class<?>) src;
        ParameterizedType targetType = (ParameterizedType) target;
        Class<?> targetCls = (Class<?>) targetType.getRawType();

        if (srcCls.isArray() && srcCls.getComponentType().equals(targetType.getActualTypeArguments()[0])) {
            if (List.class.isAssignableFrom(targetCls)) {
                return arrayToList;
            }//from   w ww  .  j a v  a2 s.com
            if (Set.class.isAssignableFrom(targetCls)) {
                return arrayToSet;
            }
        }
    }

    return null;
}

---

From source file:com.nesscomputing.jersey.exceptions.GuiceProvisionExceptionMapper.java

private Class<?> getType(Class<?> c) {
    Class<?> _c = c;//from   w w w  .  jav  a 2s  . c om
    while (_c != Object.class) {
        Type[] ts = _c.getGenericInterfaces();
        for (Type t : ts) {
            if (t instanceof ParameterizedType) {
                ParameterizedType pt = (ParameterizedType) t;
                if (pt.getRawType() == ExceptionMapper.class) {
                    return getResolvedType(pt.getActualTypeArguments()[0], c, _c);
                }
            }
        }

        _c = _c.getSuperclass();
    }

    // This statement will never be reached
    return null;
}

---

From source file:reconf.client.constructors.CollectionConstructor.java

public Object construct(MethodData data) throws Throwable {

    if (data.hasAdapter()) {
        return data.getAdapter().adapt(data.getValue());
    }//from  www. j a  v  a  2s . c  o  m

    Class<?> returnClass = null;
    Type innerClass = null;

    if (data.getReturnType() instanceof ParameterizedType) {
        ParameterizedType parameterized = (ParameterizedType) data.getReturnType();
        returnClass = (Class<?>) parameterized.getRawType();

        if (parameterized.getActualTypeArguments()[0] instanceof ParameterizedType) {
            innerClass = parameterized.getActualTypeArguments()[0];

        } else if (parameterized.getActualTypeArguments()[0] instanceof Class<?>) {
            innerClass = parameterized.getActualTypeArguments()[0];
        }
    } else if (data.getReturnType() instanceof Class) {
        returnClass = (Class<?>) data.getReturnType();

        if (returnClass.getGenericSuperclass() != null
                && returnClass.getGenericSuperclass() instanceof ParameterizedType) {
            ParameterizedType parameterized = (ParameterizedType) returnClass.getGenericSuperclass();
            if (parameterized.getActualTypeArguments().length != 1) {
                throw new IllegalArgumentException(
                        msg.format("error.cant.build.type", data.getReturnType(), data.getMethod()));
            }
            if (parameterized.getActualTypeArguments()[0] instanceof TypeVariable) {
                throw new IllegalArgumentException(
                        msg.format("error.cant.build.type", data.getReturnType(), data.getMethod()));
            } else {
                innerClass = parameterized.getActualTypeArguments()[0];
            }

        } else {
            innerClass = Object.class;
        }

    } else {
        throw new IllegalArgumentException(msg.format("error.return", data.getMethod()));
    }

    if (returnClass.isInterface()) {
        returnClass = getDefaultImplementation(data, returnClass);
    }

    Constructor<?> constructor = returnClass.getConstructor(ArrayUtils.EMPTY_CLASS_ARRAY);
    Collection<Object> collectionInstance = (Collection<Object>) constructor
            .newInstance(ArrayUtils.EMPTY_OBJECT_ARRAY);

    if (null == data.getValue()) {
        return collectionInstance;
    }

    for (String s : new StringParser(data).getTokens()) {
        Object o = ObjectConstructorFactory.get(innerClass)
                .construct(new MethodData(data.getMethod(), innerClass, s));
        if (o != null) {
            collectionInstance.add(o);
        }
    }

    return collectionInstance;
}

---

From source file:com.nesscomputing.jersey.exceptions.GuiceProvisionExceptionMapper.java

private Class<?> getResolvedType(Type t, Class<?> c, Class<?> dc) {
    if (t instanceof Class) {
        return (Class<?>) t;
    } else if (t instanceof TypeVariable) {
        ReflectionHelper.ClassTypePair ct = ReflectionHelper.resolveTypeVariable(c, dc, (TypeVariable<?>) t);
        if (ct != null) {
            return ct.c;
        } else {/*from w w w  .ja  va  2s .  co  m*/
            return null;
        }
    } else if (t instanceof ParameterizedType) {
        ParameterizedType pt = (ParameterizedType) t;
        return (Class<?>) pt.getRawType();
    } else {
        // TODO log
        return null;
    }
}

---

From source file:org.blocks4j.reconf.client.constructors.CollectionConstructor.java

public Object construct(MethodData data) throws Throwable {
    Class<?> returnClass;/*from   w w w .j  a v  a 2 s .  c om*/
    Type innerClass = null;

    if (data.getReturnType() instanceof ParameterizedType) {
        ParameterizedType parameterized = (ParameterizedType) data.getReturnType();
        returnClass = (Class<?>) parameterized.getRawType();

        if (parameterized.getActualTypeArguments()[0] instanceof ParameterizedType) {
            innerClass = parameterized.getActualTypeArguments()[0];

        } else if (parameterized.getActualTypeArguments()[0] instanceof Class<?>) {
            innerClass = parameterized.getActualTypeArguments()[0];
        }
    } else if (data.getReturnType() instanceof Class) {
        returnClass = (Class<?>) data.getReturnType();

        if (returnClass.getGenericSuperclass() != null
                && returnClass.getGenericSuperclass() instanceof ParameterizedType) {
            ParameterizedType parameterized = (ParameterizedType) returnClass.getGenericSuperclass();
            if (parameterized.getActualTypeArguments().length != 1) {
                throw new IllegalArgumentException(
                        msg.format("error.cant.build.type", data.getReturnType(), data.getMethod()));
            }
            if (parameterized.getActualTypeArguments()[0] instanceof TypeVariable) {
                throw new IllegalArgumentException(
                        msg.format("error.cant.build.type", data.getReturnType(), data.getMethod()));
            } else {
                innerClass = parameterized.getActualTypeArguments()[0];
            }

        } else {
            innerClass = Object.class;
        }

    } else {
        throw new IllegalArgumentException(msg.format("error.return", data.getMethod()));
    }

    if (returnClass.isInterface()) {
        returnClass = getDefaultImplementation(data, returnClass);
    }

    Constructor<?> constructor = returnClass.getConstructor(ArrayUtils.EMPTY_CLASS_ARRAY);
    Collection<Object> collectionInstance = (Collection<Object>) constructor
            .newInstance(ArrayUtils.EMPTY_OBJECT_ARRAY);

    if (null == data.getValue()) {
        return collectionInstance;
    }

    for (String s : new StringParser(data).getTokens()) {
        Object o = ObjectConstructorFactory.get(innerClass)
                .construct(new MethodData(data.getMethod(), innerClass, s));
        if (o != null) {
            collectionInstance.add(o);
        }
    }

    return collectionInstance;
}

---

From source file:net.nelz.simplesm.aop.CacheBase.java

protected boolean verifyTypeIsList(final Class clazz) {
    if (List.class.equals(clazz)) {
        return true;
    }/*from w w  w . j  a v  a2 s .co  m*/
    final Type[] types = clazz.getGenericInterfaces();
    if (types != null) {
        for (final Type type : types) {
            if (type != null) {
                if (type instanceof ParameterizedType) {
                    final ParameterizedType ptype = (ParameterizedType) type;
                    if (List.class.equals(ptype.getRawType())) {
                        return true;
                    }
                } else {
                    if (List.class.equals(type)) {
                        return true;
                    }
                }
            }
        }
    }

    return false;
}

---

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