Example usage for java.beans IntrospectionException getCause

Introduction

In this page you can find the example usage for java.beans IntrospectionException getCause.

Prototype

public synchronized Throwable getCause() 

Source Link

Document

Returns the cause of this throwable or null if the cause is nonexistent or unknown.

Usage

From source file:de.unentscheidbar.validation.internal.Beans.java

public static PropertyDescriptor property(Class<?> beanClass, String propertyName) {

    try {//from  ww w.j a v  a 2  s. c  o m
        BeanInfo beanInfo = Introspector.getBeanInfo(beanClass);
        PropertyDescriptor[] propDescriptors = beanInfo.getPropertyDescriptors();
        if (propDescriptors == null) {
            throw new IllegalArgumentException("Class " + beanClass.getName()
                    + " does not provide property descriptors in its bean info.");
        }
        for (PropertyDescriptor pd : propDescriptors) {
            if (pd.getName().equals(propertyName)) {
                return pd;
            }
        }
        return null;
    } catch (IntrospectionException e) {
        throw Throwables.propagate(e.getCause());
    }
}

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From source file:be.fgov.kszbcss.rhq.websphere.component.jdbc.db2.pool.ConnectionContextImpl.java

ConnectionContextImpl(Map<String, Object> properties) {
    dataSource = new DB2SimpleDataSource();
    BeanInfo beanInfo;/*from   w  ww  . j  av a 2  s  .c o m*/
    try {
        beanInfo = Introspector.getBeanInfo(DB2SimpleDataSource.class);
    } catch (IntrospectionException ex) {
        throw new Error(ex);
    }
    for (PropertyDescriptor descriptor : beanInfo.getPropertyDescriptors()) {
        String name = descriptor.getName();
        if (properties.containsKey(name)) {
            Object value = properties.get(name);
            Class<?> propertyType = descriptor.getPropertyType();
            if (log.isDebugEnabled()) {
                log.debug("Setting property " + name + ": propertyType=" + propertyType.getName() + ", value="
                        + value + " (class=" + (value == null ? "<N/A>" : value.getClass().getName()) + ")");
            }
            if (propertyType != String.class && value instanceof String) {
                // Need to convert value to correct type
                if (propertyType == Integer.class || propertyType == Integer.TYPE) {
                    value = Integer.valueOf((String) value);
                }
                if (log.isDebugEnabled()) {
                    log.debug("Converted value to " + value + " (class=" + value.getClass().getName() + ")");
                }
            }
            try {
                descriptor.getWriteMethod().invoke(dataSource, value);
            } catch (IllegalArgumentException ex) {
                throw new RuntimeException("Failed to set '" + name + "' property", ex);
            } catch (IllegalAccessException ex) {
                throw new IllegalAccessError(ex.getMessage());
            } catch (InvocationTargetException ex) {
                Throwable cause = ex.getCause();
                if (cause instanceof RuntimeException) {
                    throw (RuntimeException) cause;
                } else if (cause instanceof Error) {
                    throw (Error) cause;
                } else {
                    throw new RuntimeException(ex);
                }
            }
        }
    }
}

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