Example usage for java.lang.reflect Method getParameterTypes

Introduction

In this page you can find the example usage for java.lang.reflect Method getParameterTypes.

Prototype

@Override
public Class<?>[] getParameterTypes() 

Source Link

Usage

From source file:org.atteo.moonshine.websocket.jsonmessages.HandlerDispatcher.java

private void registerSenderMethod(Method method) {
    Class<?>[] parameterTypes = method.getParameterTypes();
    if (parameterTypes.length != 1) {
        throw new RuntimeException("Sender method" + " must have exactly one argument whose super class is "
                + JsonMessage.class.getSimpleName());
    }/*from w w w  .j av  a 2 s  .co m*/
    Class<?> parameterType = parameterTypes[0];
    if (!JsonMessage.class.isAssignableFrom(parameterType)) {
        throw new RuntimeException("Sender method" + " must have exactly one argument whose super class is "
                + JsonMessage.class.getSimpleName());
    }
    encoderObjectMapper.registerSubtypes(parameterType);
    Class<?> returnType = method.getReturnType();
    if (returnType != Void.TYPE) {
        throw new RuntimeException("Sender method must have " + Void.class.getSimpleName() + " return type");
    }
}

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From source file:org.zkoss.zkgrails.GrailsComposer.java

/**
 * <p>Overrides GenericEventListener to use InvokerHelper to call methods. Because of this the events are now
 * part of groovy's dynamic methods, e.g. metaClass.invokeMethod works for event methods. Without this the default java code
 * don't call the overriden invokeMethod</p>
 *
 * @param evt/*from w  w w.  ja  va  2  s .c  om*/
 * @throws Exception
 */
@Override
public void onEvent(Event evt) throws Exception {
    final Object controller = getController();
    final Method mtd = ComponentsCtrl.getEventMethod(controller.getClass(), evt.getName());
    if (mtd != null) {
        if (mtd.getParameterTypes().length == 0) {
            InvokerHelper.invokeMethod(controller, mtd.getName(), null);
        } else if (evt instanceof ForwardEvent) { //ForwardEvent
            final Class paramcls = (Class) mtd.getParameterTypes()[0];
            //paramcls is ForwardEvent || Event
            if (ForwardEvent.class.isAssignableFrom(paramcls) || Event.class.equals(paramcls)) {
                InvokerHelper.invokeMethod(controller, mtd.getName(), new Object[] { evt });
            } else {
                do {
                    evt = ((ForwardEvent) evt).getOrigin();
                } while (evt instanceof ForwardEvent);
                InvokerHelper.invokeMethod(controller, mtd.getName(), new Object[] { evt });
            }
        } else {
            InvokerHelper.invokeMethod(controller, mtd.getName(), new Object[] { evt });
        }
    }
}

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From source file:com.sinosoft.one.data.jade.statement.JdbcStatement.java

public JdbcStatement(StatementMetaData statementMetaData, SQLType sqlType, Interpreter[] interpreters,
        Querier querier) {/* w  w w. j  a  va2  s.  c o  m*/
    this.metaData = statementMetaData;
    this.interpreters = (interpreters == null) ? new Interpreter[0] : interpreters;
    this.querier = querier;
    this.sqlType = sqlType;
    if (sqlType == SQLType.WRITE) {
        Method method = statementMetaData.getMethod();
        Class<?>[] types = method.getParameterTypes();
        Class<?> returnType = method.getReturnType();
        if (returnType.isPrimitive()) {
            returnType = ClassUtils.primitiveToWrapper(returnType);
        }
        if (types.length > 0 && List.class.isAssignableFrom(types[0])) {
            this.batchUpdate = true;
            if (returnType != void.class && returnType != int[].class && returnType != Integer[].class
                    && returnType != Integer.class) {
                throw new IllegalArgumentException("error return type:" + method.getDeclaringClass().getName()
                        + "#" + method.getName() + "-->" + returnType);
            }
        } else {
            this.batchUpdate = false;
            if (returnType != void.class && returnType != Boolean.class
                    && !Number.class.isAssignableFrom(returnType)) {
                throw new IllegalArgumentException("error return type:" + method.getDeclaringClass().getName()
                        + "#" + method.getName() + "-->" + returnType);
            }
        }
    } else {
        this.batchUpdate = false;
    }
}

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From source file:net.paoding.rose.jade.statement.JdbcStatement.java

public JdbcStatement(StatementMetaData statementMetaData, SQLType sqlType, Interpreter[] interpreters,
        Querier querier) {//  ww  w . j a  v  a  2  s. c  o m
    this.metaData = statementMetaData;
    this.interpreters = (interpreters == null) ? new Interpreter[0] : interpreters;
    this.querier = querier;
    this.sqlType = sqlType;
    if (sqlType == SQLType.WRITE) {
        Method method = statementMetaData.getMethod();
        Class<?>[] types = method.getParameterTypes();
        Class<?> returnType = method.getReturnType();
        if (returnType.isPrimitive()) {
            returnType = ClassUtils.primitiveToWrapper(returnType);
        }
        if (types.length > 0 && List.class.isAssignableFrom(types[0])) {
            this.batchUpdate = true;
            if (returnType != void.class && returnType != int[].class && returnType != Integer[].class
                    && returnType != Integer.class) {
                throw new IllegalArgumentException("error return type:" + method.getDeclaringClass().getName()
                        + "#" + method.getName() + "-->" + returnType);
            }
        } else {
            this.batchUpdate = false;
            if (Number.class.isAssignableFrom(returnType)) {
                throw new IllegalArgumentException("error return type:" + method.getDeclaringClass().getName()
                        + "#" + method.getName() + "-->" + returnType);
            }
        }
    } else {
        this.batchUpdate = false;
    }
}

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From source file:hsa.awp.common.util.StaticInitializerBeanFactoryPostProcessor.java

/**
 * Finds the parameter types from the first argument of the given method.
 *
 * @param setter the method to find out the parameter types
 * @return the parameter type of the first argument
 */// w w w .  j ava  2 s  .c  o  m
private Class<?> getPropertyType(Method setter) {

    Class<?>[] params = setter.getParameterTypes();
    if (params.length != 1) {
        throw new StaticInitializerBeansException("bad write method arg count: " + setter);
    }
    return params[0];
}

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From source file:org.vaadin.spring.i18n.Translator.java

private void analyzeMethods(Class<?> clazz) {
    for (Method m : clazz.getDeclaredMethods()) {
        if (m.getParameterTypes().length == 0 && m.getReturnType() != Void.TYPE) {
            if (m.isAnnotationPresent(TranslatedProperty.class)) {
                translatedMethods.put(m.getAnnotation(TranslatedProperty.class), m);
            } else if (m.isAnnotationPresent(TranslatedProperties.class)) {
                for (TranslatedProperty annotation : m.getAnnotation(TranslatedProperties.class).value()) {
                    translatedMethods.put(annotation, m);
                }/*from   w  w w.  j  a v a 2  s  .  c o  m*/
            }
        }
    }
}

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From source file:com.ankang.report.pool.AbstractReportAliasPool.java

private void mountPrams(LinkedHashMap<String, Class<?>> paramsType, Method method) {

    Class<?>[] parameterTypes = method.getParameterTypes();

    Annotation[][] annotations = method.getParameterAnnotations();

    for (int i = 0; i < parameterTypes.length; i++) {

        if (annotations.length < i) {
            throw new ReportException(
                    "Please add an effective note for the argument, such as: HTTPParam, RequestParam");
        }/*from ww w  .  j av a2 s. c  om*/
        if ((ReportRequest.class.isAssignableFrom(parameterTypes[i]))
                || (!parameterTypes[i].isPrimitive() && !parameterTypes[i].toString().matches("^.+java\\..+$")
                        && parameterTypes[i].toString().matches("^class.+$"))) {

            Field[] fields = parameterTypes[i].getDeclaredFields();
            for (Field field : fields) {
                if (!Modifier.isFinal(field.getModifiers()) || !Modifier.isStatic(field.getModifiers())) {

                    paramsType.put(field.getName(), field.getType());
                }
            }
        } else {
            if (annotations.length >= i && annotations[i].length > 0) {

                paramsType.put(matchPrams(annotations[i][0]), parameterTypes[i]);
            }
        }
    }
}

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From source file:com.openteach.diamond.provider.impl.DefaultServiceProvider.java

/**
 * //  w w  w.j ava 2  s  .  co m
 * @param method
 * @return
 */
private String getKey(Method method) {
    Class[] cs = method.getParameterTypes();
    String[] names = new String[cs.length + 1];
    names[0] = method.getName();
    for (int i = 0; i < cs.length; i++) {
        names[i + 1] = cs[i].getName();
    }
    return StringUtils.join(names, "-");
}

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From source file:com.springframework.core.annotation.AnnotationUtils.java

private static <A extends Annotation> A searchOnInterfaces(Method method, Class<A> annotationType,
        Class<?>... ifcs) {
    A annotation = null;/*from  w w  w  . j a v  a  2s  .  c om*/
    for (Class<?> iface : ifcs) {
        if (isInterfaceWithAnnotatedMethods(iface)) {
            try {
                Method equivalentMethod = iface.getMethod(method.getName(), method.getParameterTypes());
                annotation = getAnnotation(equivalentMethod, annotationType);
            } catch (NoSuchMethodException ex) {
                // Skip this interface - it doesn't have the method...
            }
            if (annotation != null) {
                break;
            }
        }
    }
    return annotation;
}

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From source file:io.stallion.reflection.PropertyUtils.java

/**
 * Build a map of direct javabeans properties of the target object. Only read/write properties (ie: those who have
 * both a getter and a setter) are returned.
 * @param target the target object from which to get properties names.
 * @return a Map of String with properties names as key and their values
 * @throws PropertyException if an error happened while trying to get a property.
 *///from ww  w.ja  va2s.  c o m
public static Map<String, Object> getProperties(Object target,
        Class<? extends Annotation>... excludeAnnotations) throws PropertyException {
    Map<String, Object> properties = new HashMap<String, Object>();
    Class clazz = target.getClass();
    Method[] methods = clazz.getMethods();
    for (int i = 0; i < methods.length; i++) {
        Method method = methods[i];
        String name = method.getName();
        Boolean hasExcludeAnno = false;
        if (excludeAnnotations.length > 0) {
            for (Class<? extends Annotation> anno : excludeAnnotations) {
                if (method.isAnnotationPresent(anno)) {
                    hasExcludeAnno = true;
                }
            }
        }
        if (hasExcludeAnno) {
            continue;
        }
        if (method.getModifiers() == Modifier.PUBLIC && method.getParameterTypes().length == 0
                && (name.startsWith("get") || name.startsWith("is"))
                && containsSetterForGetter(clazz, method)) {
            String propertyName;
            if (name.startsWith("get"))
                propertyName = Character.toLowerCase(name.charAt(3)) + name.substring(4);
            else if (name.startsWith("is"))
                propertyName = Character.toLowerCase(name.charAt(2)) + name.substring(3);
            else
                throw new PropertyException(
                        "method '" + name + "' is not a getter, thereof no setter can be found");

            try {
                Object propertyValue = method.invoke(target, (Object[]) null); // casting to (Object[]) b/c of javac 1.5 warning
                if (propertyValue != null && propertyValue instanceof Properties) {
                    Map propertiesContent = getNestedProperties(propertyName, (Properties) propertyValue);
                    properties.putAll(propertiesContent);
                } else {
                    properties.put(propertyName, propertyValue);
                }
            } catch (IllegalAccessException ex) {
                throw new PropertyException("cannot set property '" + propertyName + "' - '" + name
                        + "' is null and cannot be auto-filled", ex);
            } catch (InvocationTargetException ex) {
                throw new PropertyException("cannot set property '" + propertyName + "' - '" + name
                        + "' is null and cannot be auto-filled", ex);
            }

        } // if
    } // for

    return properties;
}

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