Example usage for java.lang Class getDeclaredMethods

Introduction

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

Prototype

@CallerSensitive
public Method[] getDeclaredMethods() throws SecurityException 

Source Link

Document

Returns an array containing Method objects reflecting all the declared methods of the class or interface represented by this Class object, including public, protected, default (package) access, and private methods, but excluding inherited methods.

Usage

From source file:Main.java

public static void setProperties(Object object, Map<String, ? extends Object> properties,
        boolean includeSuperClasses) {
    if (object == null || properties == null) {
        return;//from w  w w .  j av a 2 s . co m
    }

    Class<?> objectClass = object.getClass();

    for (Map.Entry<String, ? extends Object> entry : properties.entrySet()) {
        String key = entry.getKey();
        Object value = entry.getValue();
        if (key != null && key.length() > 0) {
            String setterName = "set" + Character.toUpperCase(key.charAt(0)) + key.substring(1);
            Method setter = null;

            // Try to use the exact setter
            if (value != null) {
                try {
                    if (includeSuperClasses) {
                        setter = objectClass.getMethod(setterName, value.getClass());
                    } else {
                        setter = objectClass.getDeclaredMethod(setterName, value.getClass());
                    }
                } catch (Exception ex) {
                }
            }

            // Find a more generic setter
            if (setter == null) {
                Method[] methods = includeSuperClasses ? objectClass.getMethods()
                        : objectClass.getDeclaredMethods();
                for (Method method : methods) {
                    if (method.getName().equals(setterName)) {
                        Class<?>[] parameterTypes = method.getParameterTypes();
                        if (parameterTypes.length == 1 && isAssignableFrom(parameterTypes[0], value)) {
                            setter = method;
                            break;
                        }
                    }
                }
            }

            // Invoke
            if (setter != null) {
                try {
                    setter.invoke(object, value);
                } catch (Exception e) {
                }
            }
        }
    }
}

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From source file:com.hubspot.utils.circuitbreaker.CircuitBreakerWrapper.java

/**
 * Wraps the supplied object toWrap in a CircuitBreaker conforming to the supplied CircuitBreakerPolicy.
 *///www. j  av  a  2 s .c  om
public <T, W extends T> T wrap(W toWrap, Class<T> interfaceToProxy, CircuitBreakerPolicy policy)
        throws CircuitBreakerWrappingException {
    sanityCheck(toWrap, interfaceToProxy, policy);

    // walk the chain of interfaces implemented by T and check for their blacklisted methods
    Stack<Class<?>> implementedInterfaces = new Stack<Class<?>>();
    implementedInterfaces.addAll(Arrays.asList(interfaceToProxy.getInterfaces()));
    implementedInterfaces.add(interfaceToProxy);

    Map<Method, Class[]> blacklist = new HashMap();
    while (!implementedInterfaces.isEmpty()) {
        Class<?> implementedInterface = implementedInterfaces.pop();

        for (Method m : implementedInterface.getDeclaredMethods()) {
            // check that the blacklisted method throws CircuitBreakerException
            if (m.isAnnotationPresent(CircuitBreakerExceptionBlacklist.class)) {
                if (!ArrayUtils.contains(m.getExceptionTypes(), CircuitBreakerException.class)) {
                    throw new CircuitBreakerWrappingException(
                            "Wrapped methods must throw CircuitBreakerException");
                }

                CircuitBreakerExceptionBlacklist a = (CircuitBreakerExceptionBlacklist) m
                        .getAnnotation(CircuitBreakerExceptionBlacklist.class);
                blacklist.put(m, a.blacklist());
            }
        }

        implementedInterfaces.addAll(Arrays.asList(implementedInterface.getInterfaces()));
    }

    Class<?>[] interfaces = new Class<?>[] { interfaceToProxy };
    InvocationHandler handler = new CircuitBreakerInvocationHandler(toWrap, blacklist, policy);
    T newProxyInstance = (T) Proxy.newProxyInstance(getClass().getClassLoader(), interfaces, handler);
    return newProxyInstance;
}

---

From source file:com.medsphere.fileman.FMRecord.java

static private void accumulateJavaDomainFields(Map<String, AnnotatedElement> domainFields,
        Class<? extends FMRecord> domainClass) {
    if (domainClass != null && domainClass.getSuperclass() != null) {
        Class<? extends FMRecord> superClass = (Class<? extends FMRecord>) domainClass.getSuperclass();
        accumulateJavaDomainFields(domainFields, superClass);
    }//from   w  w w.jav a 2  s. com
    for (AnnotatedElement e : domainClass.getDeclaredFields()) {
        FMAnnotateFieldInfo annote = e.getAnnotation(FMAnnotateFieldInfo.class);
        if (annote != null) {
            domainFields.put(annote.number(), e);
        }
    }
    for (AnnotatedElement e : domainClass.getDeclaredMethods()) {
        FMAnnotateFieldInfo annote = e.getAnnotation(FMAnnotateFieldInfo.class);
        if (annote != null) {
            domainFields.put(annote.number(), e);
        }
    }

}

---

From source file:com.glaf.core.util.ReflectUtils.java

private static Method findMethod(Class<? extends Object> clazz, String methodName, Object[] args) {
    for (Method method : clazz.getDeclaredMethods()) {
        if (method.getName().equals(methodName) && matches(method.getParameterTypes(), args)) {
            return method;
        }/*from  w  w w .  j  a  va 2 s . c o  m*/
    }
    Class<?> superClass = clazz.getSuperclass();
    if (superClass != null) {
        return findMethod(superClass, methodName, args);
    }
    return null;
}

---

From source file:org.apache.hadoop.metrics2.lib.MutableRates.java

/**
 * Initialize the registry with all the methods in a protocol
 * so they all show up in the first snapshot.
 * Convenient for JMX implementations.//w  w  w.j a v a  2s  .  c o  m
 * @param protocol the protocol class
 */
public void init(Class<?> protocol) {
    if (protocolCache.contains(protocol))
        return;
    protocolCache.add(protocol);
    for (Method method : protocol.getDeclaredMethods()) {
        String name = method.getName();
        LOG.debug(name);
        try {
            registry.newRate(name, name, false, true);
        } catch (Exception e) {
            LOG.error("Error creating rate metrics for " + method.getName(), e);
        }
    }
}

---

From source file:com.github.helenusdriver.commons.lang3.reflect.ReflectionUtils.java

/**
 * Gets the declared members of the given type from the specified class.
 *
 * @author paouelle//from   w  w w  .  jav  a  2 s  .c  o m
 *
 * @param <T> the type of member
 *
 * @param  type the type of members to retrieve
 * @param  clazz the class from which to retrieve the members
 * @return the non-<code>null</code> members of the given type from the
 *         specified class
 * @throws NullPointerException if <code>type</code> or
 *         <code>clazz</code> is <code>null</code>
 * @throws IllegalArgumentException if <code>type</code> is not
 *         {@link Field}, {@link Method}, or {@link Constructor}
 */
@SuppressWarnings("unchecked")
public static <T extends Member> T[] getDeclaredMembers(Class<T> type, Class<?> clazz) {
    org.apache.commons.lang3.Validate.notNull(type, "invalid null member type");
    org.apache.commons.lang3.Validate.notNull(clazz, "invalid null class");
    if (type == Field.class) {
        return (T[]) clazz.getDeclaredFields();
    } else if (type == Method.class) {
        return (T[]) clazz.getDeclaredMethods();
    } else if (type == Constructor.class) {
        return (T[]) clazz.getDeclaredConstructors();
    } else {
        throw new IllegalArgumentException("invalid member class: " + type.getName());
    }
}

---

From source file:com.medsphere.fileman.FMRecord.java

private static void accumulateNumericMapping(Map<String, String> numberMap,
        Class<? extends FMRecord> domainClass) {

    if (domainClass != null && domainClass.getSuperclass() != null) {
        Class<? extends FMRecord> superClass = (Class<? extends FMRecord>) domainClass.getSuperclass();
        accumulateNumericMapping(numberMap, superClass);
    }/* w ww.  ja va 2s.c  o m*/

    for (AnnotatedElement e : domainClass.getDeclaredFields()) {
        FMAnnotateFieldInfo annote = e.getAnnotation(FMAnnotateFieldInfo.class);
        if (annote != null) {
            numberMap.put(annote.name(), annote.number());
        }
    }
    for (AnnotatedElement e : domainClass.getDeclaredMethods()) {
        FMAnnotateFieldInfo annote = e.getAnnotation(FMAnnotateFieldInfo.class);
        if (annote != null) {
            numberMap.put(annote.name(), annote.number());
        }
    }
}

---

From source file:org.apache.hadoop.hbase.thrift.ThriftMetrics.java

private void createMetricsForMethods(Class<?> iface) {
    LOG.debug("Creating metrics for interface " + iface.toString());
    for (Method m : iface.getDeclaredMethods()) {
        if (getMethodTimeMetrics(m.getName()) == null)
            LOG.debug("Creating metrics for method:" + m.getName());
        createMethodTimeMetrics(m.getName());
    }/*from   w w w.  ja  v  a 2s.  c  o m*/
}

---

From source file:org.apache.aries.blueprint.plugin.model.Bean.java

public Bean(Class<?> clazz) {
    this.clazz = clazz;
    this.id = getBeanName(clazz);
    for (Method method : clazz.getDeclaredMethods()) {
        PostConstruct postConstruct = method.getAnnotation(PostConstruct.class);
        if (postConstruct != null) {
            this.initMethod = method.getName();
        }//from  w ww .  ja v  a2  s.  co  m
        PreDestroy preDestroy = method.getAnnotation(PreDestroy.class);
        if (preDestroy != null) {
            this.destroyMethod = method.getName();
        }
    }
    this.persistenceUnitField = getPersistenceUnit();
    this.transactionDef = new JavaxTransactionFactory().create(clazz);
    if (this.transactionDef == null) {
        this.transactionDef = new SpringTransactionFactory().create(clazz);
    }
    properties = new TreeSet<Property>();
}

---

From source file:net.sf.beanlib.provider.BeanChecker.java

/** 
 * Returns true if the fromBean is empty; or false otherwise.
 * It is considered empty if every publicly declared getter methods of the specified class 
 * either return null or blank string.//ww w .  jav  a2  s .c  o m
 * 
 * @param fromBean java bean to check if empty or not.
 * @param k specified class name from which the getter methods are derived. 
 */
public boolean empty(Object fromBean, Class<?> k) {
    Class<?> fromClass = fromBean.getClass();
    Method[] ma = k.getDeclaredMethods();
    try {
        // invoking all declaring getter methods of fromBean
        for (int i = 0; i < ma.length; i++) {
            Method m = ma[i];
            String name = m.getName();
            try {
                if (name.startsWith("get") && Modifier.isPublic(m.getModifiers())) {
                    Method getter = fromClass.getMethod(name);
                    Object attrValue = getter.invoke(fromBean);

                    if (attrValue == null) {
                        continue;
                    }
                    if (attrValue instanceof String) {
                        String s = (String) attrValue;
                        s = s.trim();

                        if (s.length() == 0) {
                            continue;
                        }
                    }
                    return false;
                }
            } catch (NoSuchMethodException ignore) {
                // ignore and proceed to the next method.
            }
        }
        return true;
    } catch (IllegalAccessException e) {
        log.error("", e);
        throw new BeanlibException(e);
    } catch (SecurityException e) {
        log.error("", e);
        throw new BeanlibException(e);
    } catch (InvocationTargetException e) {
        log.error("", e.getTargetException());
        throw new BeanlibException(e.getTargetException());
    }
}

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