Example usage for java.lang.reflect Method getParameterCount

Introduction

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

Prototype

public int getParameterCount() 

Source Link

Usage

From source file:org.springframework.boot.test.context.assertj.AssertProviderApplicationContextInvocationHandler.java

private boolean isGetStartupFailure(Method method) {
    return ("getStartupFailure".equals(method.getName()) && method.getParameterCount() == 0);
}

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From source file:com.flipkart.polyguice.dropwiz.DropConfigProvider.java

private String getNameFromMethod(Method method) {
    if (method.getParameterCount() > 0) {
        return null;
    }/*from   w  w w . java 2  s.  co  m*/
    if (method.getReturnType().equals(Void.TYPE)) {
        return null;
    }

    String mthdName = method.getName();
    if (mthdName.startsWith("get")) {
        if (mthdName.length() <= 3) {
            return null;
        }
        if (method.getReturnType().equals(Boolean.class) || method.getReturnType().equals(Boolean.TYPE)) {
            return null;
        }
        StringBuffer buffer = new StringBuffer(StringUtils.removeStart(mthdName, "get"));
        buffer.setCharAt(0, Character.toLowerCase(buffer.charAt(0)));
        return buffer.toString();
    } else if (!mthdName.startsWith("is")) {
        if (mthdName.length() <= 2) {
            return null;
        }
        if (!method.getReturnType().equals(Boolean.class) && !method.getReturnType().equals(Boolean.TYPE)) {
            return null;
        }
        StringBuffer buffer = new StringBuffer(StringUtils.removeStart(mthdName, "is"));
        buffer.setCharAt(0, Character.toLowerCase(buffer.charAt(0)));
        return buffer.toString();
    }
    return null;
}

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From source file:org.springframework.boot.test.context.assertj.AssertProviderApplicationContextInvocationHandler.java

private boolean isGetSourceContext(Method method) {
    return "getSourceApplicationContext".equals(method.getName()) && ((method.getParameterCount() == 0)
            || Arrays.equals(new Class<?>[] { Class.class }, method.getParameterTypes()));
}

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From source file:org.springframework.aop.framework.adapter.ThrowsAdviceInterceptor.java

/**
 * Create a new ThrowsAdviceInterceptor for the given ThrowsAdvice.
 * @param throwsAdvice the advice object that defines the exception
 * handler methods (usually a {@link org.springframework.aop.ThrowsAdvice}
 * implementation)/*from  w  w  w  . ja v a2  s . c  o  m*/
 */
public ThrowsAdviceInterceptor(Object throwsAdvice) {
    Assert.notNull(throwsAdvice, "Advice must not be null");
    this.throwsAdvice = throwsAdvice;

    Method[] methods = throwsAdvice.getClass().getMethods();
    for (Method method : methods) {
        if (method.getName().equals(AFTER_THROWING)
                && (method.getParameterCount() == 1 || method.getParameterCount() == 4) && Throwable.class
                        .isAssignableFrom(method.getParameterTypes()[method.getParameterCount() - 1])) {
            // Have an exception handler
            this.exceptionHandlerMap.put(method.getParameterTypes()[method.getParameterCount() - 1], method);
            if (logger.isDebugEnabled()) {
                logger.debug("Found exception handler method: " + method);
            }
        }
    }

    if (this.exceptionHandlerMap.isEmpty()) {
        throw new IllegalArgumentException(
                "At least one handler method must be found in class [" + throwsAdvice.getClass() + "]");
    }
}

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From source file:org.kie.server.controller.client.websocket.WebSocketKieServerControllerClientTest.java

private void verifyServiceMethods(final Class service) throws Exception {
    final String name = service.getName();
    final Method[] methods = service.getMethods();

    for (int i = 0; i < methods.length; i++) {
        final Method m = methods[i];

        MethodUtils.invokeMethod(controllerClient, m.getName(), new Object[m.getParameterCount()]);

        ArgumentCaptor<String> contentCaptor = ArgumentCaptor.forClass(String.class);
        verify(client).sendTextWithInternalHandler(contentCaptor.capture(), any(InternalMessageHandler.class));

        final DescriptorCommand command = WebSocketUtils.unmarshal(contentCaptor.getValue(),
                DescriptorCommand.class);
        assertNotNull(command);/*from   www .ja  v a  2 s  .  c  o m*/
        assertEquals(name, command.getService());
        assertEquals(m.getName(), command.getMethod());

        reset(client);
    }
}

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From source file:telegram.polling.BotApiProxy.java

@Override
public Object invoke(Object o, Method method, Object[] os) throws Throwable {
    ArrayList<NameValuePair> nvps = new ArrayList<>();
    for (int i = 0; i < method.getParameterCount(); i++) {
        Parameter parameter = method.getParameters()[i];
        if (os[i] != null) {
            String name;//w  w  w.j  a  v a 2  s . co  m
            if (parameter.isAnnotationPresent(Param.class)) {
                name = parameter.getDeclaredAnnotation(Param.class).name();
            } else {
                name = parameter.getName();
            }
            nvps.add(new BasicNameValuePair(name, os[i].toString()));
        }
    }
    return callApiMethod(method.getName(), nvps, method.getReturnType());
}

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From source file:com.github.tddts.jet.config.spring.postprocessor.MessageAnnotationBeanPostProcessor.java

private boolean checkMethod(Method method, Class<?> type) {
    if (!method.isAnnotationPresent(Message.class)) {
        return false;
    }/*w  w  w.  j  a  v  a 2s .co  m*/
    if (method.getParameterCount() == 1 && method.getParameterTypes()[0].equals(String.class)) {
        return true;
    }
    logger.warn("Method [" + type + "." + method.getName()
            + "] is not populated with message. Method should have a single String parameter.");
    return false;
}

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From source file:de.fraunhofer.iosb.ilt.sta.model.core.AbstractEntity.java

@Override
public void setProperty(Property property, Object value) {
    String methodName = property.getSetterName();
    try {//from   w w  w  .  j  av a  2s  .com
        for (Method m : this.getClass().getMethods()) {
            if (m.getParameterCount() == 1 && methodName.equals(m.getName())) {
                try {
                    m.invoke(this, value);
                    return;
                } catch (SecurityException | IllegalAccessException | InvocationTargetException
                        | IllegalArgumentException e) {
                    LOGGER.trace("Wrong setter method.");
                }
            }
        }
    } catch (SecurityException ex) {
        LOGGER.error("Failed to find or execute method " + methodName, ex);
    }
}

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From source file:psyriccio.voteflow.api.LawAPI.java

protected Map<String, String> getParams(Object obj) {
    Map<String, String> params = new HashMap<>();
    final Function<Date, String> formatDate = (Date t) -> {
        return DateFormatUtils.format(t, "yyyy-MM-dd");
    };//  w  w  w. j a  v a  2 s  .c o m

    if (obj == null) {
        return params;
    }
    for (Method method : obj.getClass().getMethods()) {
        if (method.getParameterCount() == 0) {
            if (method.getName().startsWith("get") || method.getName().startsWith("is")) {
                String name = method.getName().replaceAll("get", "").replaceAll("is", "").toLowerCase();
                if (name.equals("class")) {
                    continue;
                }
                try {
                    Object objVal = method.invoke(obj);
                    if (objVal != null) {
                        String value = "";
                        if (objVal instanceof Boolean) {
                            value = ((Boolean) objVal) ? "1" : "0";
                        } else if (objVal instanceof Date) {
                            value = formatDate.apply((Date) objVal);
                        } else {
                            value = objVal.toString();
                        }
                        params.put(name, value);
                    }
                } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException ex) {
                    Main.log.error("Exception: {}", ex);
                }
            }
        }
    }
    return params;
}

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From source file:de.fraunhofer.iosb.ilt.sta.model.core.AbstractEntity.java

@Override
public void unsetProperty(Property property) {
    String methodName = property.getSetterName();
    try {//from   ww w .j  av  a 2  s  . c  om
        Method[] methods = this.getClass().getMethods();
        for (Method method : methods) {
            if (method.getName().equalsIgnoreCase(methodName) && method.getParameterCount() == 1) {
                method.invoke(this, new Object[] { null });
                return;
            }
        }
        LOGGER.error("Failed to find method {}.", methodName);
    } catch (SecurityException | IllegalAccessException | IllegalArgumentException
            | InvocationTargetException ex) {
        LOGGER.error("Failed to find or execute method " + methodName, ex);
    }
}

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