Example usage for java.beans PropertyDescriptor getReadMethod

Introduction

In this page you can find the example usage for java.beans PropertyDescriptor getReadMethod.

Prototype

public synchronized Method getReadMethod() 

Source Link

Document

Gets the method that should be used to read the property value.

Usage

From source file:nl.ucan.navigate.NestedPath.java

private static Class getCollectionReturnType(String property, Class clasz) throws IntrospectionException {
    PropertyDescriptor propertyDescriptor = new PropertyDescriptor(property, clasz);
    Method method = propertyDescriptor.getReadMethod();
    Class klass = GenericCollectionTypeResolver.getCollectionReturnType(method);
    if (klass == null) {
        klass = GenericTypeResolver.resolveReturnType(method, clasz);
        if (klass.isArray()) {
            return klass.getComponentType();
        } else {/*from  w  w w. j  ava 2 s .c o m*/
            throw new IllegalStateException("unsupported return type");
        }
    } else
        return klass;
}

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From source file:org.apache.myfaces.el.PropertyResolverImpl.java

public static Object getProperty(Object base, String name) {
    PropertyDescriptor propertyDescriptor = getPropertyDescriptor(base, name);

    Method m = propertyDescriptor.getReadMethod();
    if (m == null) {
        throw new PropertyNotFoundException(getMessage(base, name));
    }/*w w w.  j a v  a 2s. co m*/

    // Check if the concrete class of this method is accessible and if not
    // search for a public interface that declares this method
    m = MethodUtils.getAccessibleMethod(m);
    if (m == null) {
        throw new PropertyNotFoundException(getMessage(base, name) + " (not accessible!)");
    }

    try {
        return m.invoke(base, NO_ARGS);
    } catch (Throwable t) {
        throw new EvaluationException(getMessage(base, name), t);
    }
}

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From source file:org.codehaus.groovy.grails.commons.GrailsDomainConfigurationUtil.java

/**
 * Checks whether is property is configurational.
 *
 * @param descriptor The descriptor/* w ww .j  av a 2  s.  c o m*/
 * @return true if it is configurational
 */
public static boolean isNotConfigurational(PropertyDescriptor descriptor) {

    final String name = descriptor.getName();
    Method readMethod = descriptor.getReadMethod();
    Method writeMethod = descriptor.getWriteMethod();

    if ((readMethod != null && Modifier.isStatic(readMethod.getModifiers())
            || (writeMethod != null && Modifier.isStatic(writeMethod.getModifiers())))) {
        return false;
    }

    return !Errors.class.isAssignableFrom(descriptor.getPropertyType()) && isNotConfigurational(name);
}

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From source file:org.bibsonomy.plugin.jabref.util.JabRefModelConverter.java

protected static void copyStringProperties(BibtexEntry entry, BibTex bibtex) throws IntrospectionException,
        IllegalAccessException, IllegalArgumentException, InvocationTargetException {
    /*/*from w  w w.j  a v  a 2  s .c o  m*/
     * we use introspection to get all fields ...
     */
    final BeanInfo info = Introspector.getBeanInfo(bibtex.getClass());
    final PropertyDescriptor[] descriptors = info.getPropertyDescriptors();

    /*
     * iterate over all properties
     */
    for (final PropertyDescriptor pd : descriptors) {

        final Method getter = pd.getReadMethod();

        // loop over all String attributes
        final Object o = getter.invoke(bibtex, (Object[]) null);

        if (String.class.equals(pd.getPropertyType()) && (o != null)
                && !JabRefModelConverter.EXCLUDE_FIELDS.contains(pd.getName())) {
            final String value = ((String) o);
            if (present(value)) {
                entry.setField(pd.getName().toLowerCase(), value);
            }
        }
    }
}

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From source file:es.logongas.ix3.util.ReflectionUtil.java

/**
 *
 * @param clazz/*from w  ww .j a  v a2s .  c  o m*/
 * @param propertyName El nombre de la propiedad permite que sean varias
 * "nested" con puntos. Ej: "prop1.prop2.prop3"
 * @return
 */
static public boolean existsReadPropertyInClass(Class clazz, String propertyName) {
    PropertyDescriptor propertyDescriptor = getPropertyDescriptor(clazz, propertyName);

    if (propertyDescriptor.getReadMethod() != null) {
        return true;
    } else {
        return false;
    }
}

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From source file:org.dozer.util.ReflectionUtils.java

/**
 * There are some nasty bugs for introspection with generics. This method addresses those nasty bugs and tries to find proper methods if available
 *  http://bugs.sun.com/view_bug.do?bug_id=6788525
 *  http://bugs.sun.com/view_bug.do?bug_id=6528714
 * @param descriptor/* w  w w  . j av  a  2s .  c  om*/
 * @return
 */
private static PropertyDescriptor fixGenericDescriptor(Class<?> clazz, PropertyDescriptor descriptor) {
    Method readMethod = descriptor.getReadMethod();
    Method writeMethod = descriptor.getWriteMethod();

    if (readMethod != null && (readMethod.isBridge() || readMethod.isSynthetic())) {
        String propertyName = descriptor.getName();
        //capitalize the first letter of the string;
        String baseName = Character.toUpperCase(propertyName.charAt(0)) + propertyName.substring(1);
        String setMethodName = "set" + baseName;
        String getMethodName = "get" + baseName;
        Method[] methods = clazz.getMethods();
        for (Method method : methods) {
            if (method.getName().equals(getMethodName) && !method.isBridge() && !method.isSynthetic()) {
                try {
                    descriptor.setReadMethod(method);
                } catch (IntrospectionException e) {
                    //move on
                }
            }
            if (method.getName().equals(setMethodName) && !method.isBridge() && !method.isSynthetic()) {
                try {
                    descriptor.setWriteMethod(method);
                } catch (IntrospectionException e) {
                    //move on
                }
            }
        }
    }
    return descriptor;
}

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From source file:org.jaxygen.converters.properties.PropertiesToBeanConverter.java

/**
 * Fill the field in bean by the value pointed by the name. Name format name=<(KEY([N])?)+> where KEY bean property name, N index in table (if bean field is
 * List of java array).//  ww  w  .  jav  a2s  .  co  m
 *
 * @param name
 * @param value
 * @param beanClass
 * @param baseBean
 * @param conversionReport
 * @return
 * @throws IntrospectionException
 * @throws IllegalArgumentException
 * @throws IllegalAccessException
 * @throws InvocationTargetException
 * @throws InstantiationException
 * @throws WrongProperyIndex
 */
private static Object fillBeanValueByName(final String name, Object value, Class<?> beanClass, Object baseBean)
        throws IntrospectionException, IllegalArgumentException, IllegalAccessException,
        InvocationTargetException, InstantiationException, WrongProperyIndex {
    // parse name x.y[i].z[n].v
    Object bean = baseBean;
    if (bean == null) {
        bean = beanClass.newInstance();
    }
    Class<?> c = beanClass;
    BeanInfo beanInfo = Introspector.getBeanInfo(c, Object.class);
    final String childName = name.substring(name.indexOf(".") + 1);
    String path[] = name.split("\\.");

    final String fieldName = path[0];
    // parse arrays [n]
    if (fieldName.endsWith("]")) {
        int bracketStart = fieldName.indexOf("[");
        int len = fieldName.length();
        if (bracketStart > 0) {
            fillBeanArrayField(name, value, bean, beanInfo, path, fieldName, bracketStart, len);
        } else {
            throw new WrongProperyIndex(name);
        }
    } else {
        // parse non arrays
        for (PropertyDescriptor pd : beanInfo.getPropertyDescriptors()) {
            if (pd.getName().equals(fieldName)) {
                Method writter = pd.getWriteMethod();
                Method reader = pd.getReadMethod();
                if (writter != null && reader != null) {
                    Class<?> valueType = reader.getReturnType();
                    if (path.length == 1) {
                        Object valueObject = parsePropertyToValue(value, valueType);
                        writter.invoke(bean, valueObject);
                    } else {
                        Object childBean = reader.invoke(bean);
                        Object valueObject = fillBeanValueByName(childName, value, valueType, childBean);
                        writter.invoke(bean, valueObject);
                    }
                }
            }
        }
    }

    // Object bean = c.newInstance();
    return bean;
}

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From source file:org.agnitas.service.csv.Toolkit.java

public static void setValueFromBean(Object bean, String fieldName, String value) {
    try {//w w  w. jav  a2s  .  com
        PropertyDescriptor propertyDescriptor = getPropertyDescriptor(bean, fieldName);
        // This should never be null as it would be caused by a node representing an unknown property being popped whereas it
        // should never have been pushed in the first place!
        if (propertyDescriptor.getName().equals("customFields")) {
            final Map<String, String> customCollumnMappig = (Map<String, String>) propertyDescriptor
                    .getReadMethod().invoke(bean);
            customCollumnMappig.put(fieldName, value);
        } else {
            propertyDescriptor.getWriteMethod().invoke(bean, value);
        }
    } catch (Exception e) {
        AgnUtils.logger().warn(MessageFormat.format("Failed to set bean ({0}) property {1} with value {2}",
                bean, fieldName, value), e);
    }
}

---

From source file:org.hellojavaer.testcase.generator.TestCaseGenerator.java

@SuppressWarnings({ "rawtypes", "unchecked" })
private static <T> void checkBeanValidity(Class<T> clazz, List<String> excludeFieldList,
        int recursiveCycleLimit) {
    PropertyDescriptor[] pds = BeanUtils.getPropertyDescriptors(clazz);
    boolean validBean = false;
    for (PropertyDescriptor pd : pds) {
        if (pd.getWriteMethod() != null && pd.getReadMethod() != null && //
                (excludeFieldList != null && !excludeFieldList.contains(pd.getName())
                        || excludeFieldList == null) //
        ) {/*from ww  w.j  av  a 2 s. c  o m*/
            validBean = true;
            // just set write ,read for user control
            if (!Modifier.isPublic(pd.getWriteMethod().getDeclaringClass().getModifiers())) {
                pd.getWriteMethod().setAccessible(true);
            }

            Class fieldClazz = pd.getPropertyType();
            if (!TypeUtil.isBaseType(fieldClazz)) {
                try {
                    // ????
                    if (recursiveCycleLimit == 0 && fieldClazz == clazz) {
                        throw new RuntimeException("recursive cycle limit is 0! field[" + pd.getName()
                                + "] may cause recursive, please add this field[" + pd.getName()
                                + "] to exclude list or set recursiveCycleLimit more than 0 .");
                    } else if (!fieldClazz.isAssignableFrom(clazz)) {
                        checkBeanValidity(fieldClazz, null, 999999999);
                    }
                } catch (Exception e) {
                    throw new RuntimeException("Unknown Class " + fieldClazz.getName() + " for field "
                            + pd.getName() + " ! please add this field[" + pd.getName() + "] to exclude list.",
                            e);
                }
            }
        }
    }
    if (!validBean) {
        throw new RuntimeException(
                "Invalid Bean Class[" + clazz.getName() + "], for it has not getter setter methods!");
    }
}

---

From source file:org.agnitas.service.csv.Toolkit.java

public static String getValueFromBean(Object bean, String fieldName) {
    try {//  w w w  . ja va2 s .  c o  m
        PropertyDescriptor propertyDescriptor = getPropertyDescriptor(bean, fieldName);
        // This should never be null as it would be caused by a node representing an unknown property being popped whereas it
        // should never have been pushed in the first place!
        if (propertyDescriptor.getName().equals("customFields")) {
            final Map<String, String> customCollumnMappig = (Map<String, String>) propertyDescriptor
                    .getReadMethod().invoke(bean);
            return customCollumnMappig.get(fieldName);
        } else {
            return (String) propertyDescriptor.getReadMethod().invoke(bean);
        }
    } catch (Exception e) {
        AgnUtils.logger().warn(
                MessageFormat.format("Failed to get bean ({0}) property ({1}) value", bean, fieldName), e);
        return null;
    }
}

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