Example usage for java.beans Introspector getBeanInfo

List of usage examples for java.beans Introspector getBeanInfo

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Introduction

In this page you can find the example usage for java.beans Introspector getBeanInfo.

Prototype

public static BeanInfo getBeanInfo(Class<?> beanClass, Class<?> stopClass) throws IntrospectionException

Source Link

Document

Introspect on a Java bean and learn all about its properties, exposed methods, below a given "stop" point.

Usage

From source file:com.orange.mmp.api.ws.jsonrpc.SimpleBeanSerializer.java

@Override
public Object marshall(SerializerState state, Object p, Object o) throws MarshallException {
    JSONObject jsonObj = new JSONObject();
    try {//  w ww  .j a v a2s .c o m
        BeanInfo beanInfo = Introspector.getBeanInfo(o.getClass(), Object.class);
        for (PropertyDescriptor propertyDescriptor : beanInfo.getPropertyDescriptors()) {
            Method readMethod = propertyDescriptor.getReadMethod();
            if (readMethod != null) {
                Object propValue = readMethod.invoke(o);
                Object json = ser.marshall(state, o, propValue, propertyDescriptor.getName());
                jsonObj.put(propertyDescriptor.getName(), json);
            }
        }
    } catch (JSONException jse) {
        throw new MarshallException("Failed to marshall Bean");
    } catch (IllegalAccessException iae) {
        throw new MarshallException("Failed to analyse Bean");
    } catch (InvocationTargetException ite) {
        throw new MarshallException("Failed to analyse Bean");
    } catch (IntrospectionException ie) {
        throw new MarshallException("Failed to analyse Bean");
    }
    return jsonObj;
}

From source file:com.jetyun.pgcd.rpc.serializer.impl.BeanSerializer.java

/**
 * Analyses a bean, returning a BeanData with the data extracted from it.
 * /*from  w  ww .j  av  a  2 s  .c o  m*/
 * @param clazz
 *            The class of the bean to analyse
 * @return A populated BeanData
 * @throws IntrospectionException
 *             If a problem occurs during getting the bean info.
 */
public static BeanData analyzeBean(Class clazz) throws IntrospectionException {
    log.info("analyzing " + clazz.getName());
    BeanData bd = new BeanData();
    bd.beanInfo = Introspector.getBeanInfo(clazz, Object.class);
    PropertyDescriptor props[] = bd.beanInfo.getPropertyDescriptors();
    bd.readableProps = new HashMap();
    bd.writableProps = new HashMap();
    for (int i = 0; i < props.length; i++) {
        if (props[i].getWriteMethod() != null) {
            bd.writableProps.put(props[i].getName(), props[i].getWriteMethod());
        }
        if (props[i].getReadMethod() != null) {
            bd.readableProps.put(props[i].getName(), props[i].getReadMethod());
        }
    }
    return bd;
}

From source file:org.jabsorb.serializer.impl.BeanSerializer.java

/**
 * Analyses a bean, returning a BeanData with the data extracted from it.
 * /*  w  w w . j  ava  2s.  c o m*/
 * @param clazz The class of the bean to analyse
 * @return A populated BeanData
 * @throws IntrospectionException If a problem occurs during getting the bean
 *           info.
 */
public static BeanData analyzeBean(Class clazz) throws IntrospectionException {
    log.info("analyzing " + clazz.getName());
    BeanData bd = new BeanData();
    bd.beanInfo = Introspector.getBeanInfo(clazz, Object.class);
    PropertyDescriptor props[] = bd.beanInfo.getPropertyDescriptors();
    bd.readableProps = new HashMap();
    bd.writableProps = new HashMap();
    for (int i = 0; i < props.length; i++) {
        //This is declared by enums and shouldn't be shown.
        if (props[i].getName().equals("declaringClass")) {
            continue;
        }
        if (props[i].getWriteMethod() != null) {
            bd.writableProps.put(props[i].getName(), props[i].getWriteMethod());
        }
        if (props[i].getReadMethod() != null) {
            bd.readableProps.put(props[i].getName(), props[i].getReadMethod());
        }
    }
    return bd;
}

From source file:org.jabsorb.ng.serializer.impl.BeanSerializer.java

/**
 * Analyses a bean, returning a BeanData with the data extracted from it.
 * //from ww  w .  j a va2  s . c om
 * @param clazz
 *            The class of the bean to analyse
 * @return A populated BeanData
 * @throws IntrospectionException
 *             If a problem occurs during getting the bean info.
 */
public static BeanData analyzeBean(final Class<? extends Object> clazz) throws IntrospectionException {

    log.info("analyzeBean", "analyzing " + clazz.getName());
    final BeanData bd = new BeanData();
    bd.beanInfo = Introspector.getBeanInfo(clazz, Object.class);
    final PropertyDescriptor props[] = bd.beanInfo.getPropertyDescriptors();
    bd.readableProps = new HashMap<String, Method>();
    bd.writableProps = new HashMap<String, Method>();
    for (int i = 0; i < props.length; i++) {
        // This is declared by enums and shouldn't be shown.
        if (props[i].getName().equals("declaringClass")) {
            continue;
        }
        if (props[i].getWriteMethod() != null) {
            bd.writableProps.put(props[i].getName(), props[i].getWriteMethod());
        }
        if (props[i].getReadMethod() != null) {
            bd.readableProps.put(props[i].getName(), props[i].getReadMethod());
        }
    }
    return bd;
}

From source file:com.gisgraphy.helper.BeanHelper.java

public static String toString(Object current) {
    if (current == null) {
        return "null";
    }//from w  w  w.j a v  a  2  s .c  o  m
    final StringBuffer buffer = new StringBuffer();
    final String beanName = current.getClass().getSimpleName();
    buffer.append(beanName);
    buffer.append(" { ");
    String propertyName;
    Object propertyValue = null;
    boolean first = true;
    Exception exception;
    try {
        for (final PropertyDescriptor propertyDescriptor : Introspector
                .getBeanInfo(current.getClass(), Object.class).getPropertyDescriptors()) {
            exception = null;
            propertyName = propertyDescriptor.getName();
            logger.debug("propertyName=" + propertyName);
            try {
                propertyValue = PropertyUtils.getProperty(current, propertyName);
            } catch (final IllegalAccessException e) {
                exception = e;
            } catch (final InvocationTargetException e) {
                exception = e;
            } catch (final NoSuchMethodException e) {
                exception = e;
            }
            if (exception != null) {
                logger.debug("impossible to get value of property " + propertyName + " of bean " + beanName,
                        exception);
                continue;
            }
            if (first) {
                first = false;
            } else {
                buffer.append(", ");
            }
            buffer.append(propertyName);
            buffer.append(':');
            buffer.append(propertyValue);
        }
    } catch (final IntrospectionException e) {
        logger.error("impossible to get properties of bean " + beanName, e);
    }
    buffer.append(" }");
    return buffer.toString();
}

From source file:dhbw.ka.mwi.businesshorizon2.ui.process.period.input.AbstractInputPresenter.java

@Override
public boolean isValid() {
    if (period != null) {

        try {/*w  ww  .  ja  v a  2  s.  c  om*/
            ArrayList<String> wrongFields = new ArrayList<String>();
            boolean anyFalse = false;
            wrongFields.add(period.getYear() + "");
            for (PropertyDescriptor pdr : Introspector.getBeanInfo(period.getClass(), Object.class)
                    .getPropertyDescriptors()) {
                if (Arrays.asList(shownProperties)
                        .contains(pdr.getDisplayName().substring(0, pdr.getDisplayName().length() - 3))) {
                    if (!(boolean) pdr.getReadMethod().invoke(period)) {
                        wrongFields.add(pdr.getDisplayName().substring(0, pdr.getDisplayName().length() - 3));
                        anyFalse = true;
                    }
                }
            }
            if (anyFalse) {
                eventBus.fireEvent(new WrongFieldsEvent(wrongFields));
                return false;
            }
        } catch (IllegalAccessException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IllegalArgumentException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IntrospectionException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return true;
    } else
        return false;
}

From source file:com.reignite.messaging.server.SpringInitializedDestination.java

@Override
public void afterPropertiesSet() throws Exception {
    if (target != null) {
        // introspect and cache methods
        BeanInfo info = Introspector.getBeanInfo(target.getClass(), Object.class);
        MethodDescriptor[] meths = info.getMethodDescriptors();
        for (MethodDescriptor meth : meths) {
            Method method = meth.getMethod();
            List<Method> methods = methodMap.get(method.getName());
            if (methods == null) {
                methods = new ArrayList<Method>();
                methodMap.put(method.getName(), methods);
            }/*w w w.j  a v a  2 s  .c o  m*/
            methods.add(method);
        }
    }
    initialized = true;
}

From source file:org.apache.axis2.classloader.BeanInfoCache.java

/**
 * Introspect on a Java bean and return a cached {@link BeanInfo} object.
 * //from  www .  ja v  a2 s.c o m
 * @param beanClass
 *            The bean class to be analyzed.
 * @param stopClass
 *            The base class at which to stop the analysis; may be <code>null</code>.
 * @return A {@link BeanInfo} object describing the target bean. 
 * @exception IntrospectionException
 *                if an exception occurs during introspection.
 * @see Introspector#getBeanInfo(Class, Class)
 */
public BeanInfo getBeanInfo(Class<?> beanClass, Class<?> stopClass) throws IntrospectionException {
    CacheKey key = new CacheKey(beanClass, stopClass);
    BeanInfo beanInfo = cache.get(key);
    if (beanInfo == null) {
        beanInfo = Introspector.getBeanInfo(beanClass, stopClass);
        cache.put(key, beanInfo);
    }
    return beanInfo;
}

From source file:com.google.feedserver.util.BeanUtil.java

/**
 * Converts a JavaBean to a collection of properties
 * //from   ww w.j  a v  a 2  s  . c  om
 * @param bean The JavaBean to convert
 * @return A map of properties
 */
public Map<String, Object> convertBeanToProperties(Object bean) throws IntrospectionException,
        IllegalArgumentException, IllegalAccessException, InvocationTargetException {
    Map<String, Object> properties = new HashMap<String, Object>();
    BeanInfo beanInfo = Introspector.getBeanInfo(bean.getClass(), Object.class);
    for (PropertyDescriptor p : beanInfo.getPropertyDescriptors()) {
        String name = p.getName();
        Method reader = p.getReadMethod();
        if (reader != null) {
            Object value = reader.invoke(bean);
            if (null != value) {
                if (value instanceof Timestamp) {
                    properties.put(name, value.toString());
                } else if (isBean(value.getClass())) {
                    if (value.getClass().isArray()) {
                        Object[] valueArray = (Object[]) value;
                        if (valueArray.length == 0) {
                            properties.put(name, null);
                        } else {
                            List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
                            for (Object object : (Object[]) value) {
                                list.add(convertBeanToProperties(object));
                            }
                            properties.put(name, list.toArray(new Map[0]));
                        }
                    } else {
                        properties.put(name, convertBeanToProperties(value));
                    }
                } else {
                    properties.put(name, value);
                }
            }
        }
    }
    return properties;
}

From source file:org.codehaus.enunciate.modules.xfire.EnunciatedJAXWSWebFaultHandler.java

@Override
protected Object getFaultBean(Throwable fault, MessagePartInfo faultPart, MessageContext context) {
    Class<? extends Throwable> faultClass = fault.getClass();

    boolean conformsToJAXWSFaultPattern = conformsToJAXWSFaultPattern(faultClass);
    if (conformsToJAXWSFaultPattern) {
        try {/*from ww w.java2  s  .c  o m*/
            return faultClass.getMethod("getFaultInfo").invoke(fault);
        } catch (NoSuchMethodException e) {
            //fall through.  doesn't conform to the spec pattern.
        } catch (IllegalAccessException e) {
            throw new XFireRuntimeException("Couldn't invoke getFaultInfo method.", e);
        } catch (InvocationTargetException e) {
            throw new XFireRuntimeException("Couldn't invoke getFaultInfo method.", e);
        }
    }

    //doesn't conform to the spec pattern, use the generated fault bean class.
    Class faultBeanClass = getFaultBeanClass(faultClass);

    if (faultBeanClass == null) {
        return null;
    }

    try {
        BeanInfo beanInfo = Introspector.getBeanInfo(faultBeanClass, Object.class);
        Object faultBean = faultBeanClass.newInstance();
        for (PropertyDescriptor property : beanInfo.getPropertyDescriptors()) {
            if ((property.getWriteMethod() != null) && (property.getReadMethod() != null)) {
                Method getter = faultClass.getMethod(property.getReadMethod().getName());
                property.getWriteMethod().invoke(faultBean, getter.invoke(fault));
            }
        }
        return faultBean;
    } catch (IntrospectionException e) {
        throw new XFireRuntimeException("Unable to introspect fault bean class.", e);
    } catch (IllegalAccessException e) {
        throw new XFireRuntimeException("Unable to create fault bean.", e);
    } catch (InstantiationException e) {
        throw new XFireRuntimeException("Unable to create fault bean.", e);
    } catch (NoSuchMethodException e) {
        throw new XFireRuntimeException("The fault " + faultClass.getName()
                + " doesn't have a needed getter method used to fill in its fault bean.", e);
    } catch (InvocationTargetException e) {
        throw new XFireRuntimeException("Unable to create fault bean.", e);
    }
}