Example usage for org.springframework.beans BeanUtils instantiateClass

Introduction

In this page you can find the example usage for org.springframework.beans BeanUtils instantiateClass.

Prototype

public static <T> T instantiateClass(Class<T> clazz) throws BeanInstantiationException

Source Link

Document

Instantiate a class using its 'primary' constructor (for Kotlin classes, potentially having default arguments declared) or its default constructor (for regular Java classes, expecting a standard no-arg setup).

Usage

From source file:grails.util.GrailsClassUtils.java

/**
 * Returns the value of the specified property and type from an instance of the specified Grails class
 *
 * @param clazz The name of the class which contains the property
 * @param propertyName The property name
 *
 * @return The value of the property or null if none exists
 *///from  w  w w . jav  a 2  s .com
public static Object getPropertyValueOfNewInstance(Class<?> clazz, String propertyName) {
    // validate
    if (clazz == null || !StringUtils.hasText(propertyName)) {
        return null;
    }

    try {
        return getPropertyOrStaticPropertyOrFieldValue(BeanUtils.instantiateClass(clazz), propertyName);
    } catch (BeanInstantiationException e) {
        return null;
    }
}

From source file:it.doqui.index.ecmengine.business.personalization.hibernate.RoutingLocalSessionFactoryBean.java

/**
 * Subclasses can override this method to perform custom initialization
 * of the Configuration instance used for SessionFactory creation.
 * The properties of this RoutingLocalSessionFactoryBean will be applied to
 * the Configuration object that gets returned here.
 * <p>The default implementation creates a new Configuration instance.
 * A custom implementation could prepare the instance in a specific way,
 * or use a custom Configuration subclass.
 * @return the Configuration instance//from w ww .j  av  a  2s  . co m
 * @throws HibernateException in case of Hibernate initialization errors
 * @see org.hibernate.cfg.Configuration#Configuration()
 */
protected Configuration newConfiguration() {
    return (Configuration) BeanUtils.instantiateClass(this.configurationClass);
}

From source file:it.doqui.index.ecmengine.client.webservices.AbstractWebServiceDelegateBase.java

@SuppressWarnings("unchecked")
protected Object convertDTO(Object sourceDTO, Class destDTOClass) throws Exception {
    if (log.isDebugEnabled()) {
        log.debug("[" + getClass().getSimpleName() + "::convertDTO] BEGIN");
    }/*from   ww w  .  j a  v a  2 s.  com*/

    Object destDTO = null;
    try {
        if (sourceDTO != null) {
            if (log.isDebugEnabled()) {
                log.debug("[" + getClass().getSimpleName() + "::convertDTO] converting DTO from type "
                        + sourceDTO.getClass().getName() + " to type " + destDTOClass.getName());
            }
            destDTO = BeanUtils.instantiateClass(destDTOClass);
            PropertyDescriptor[] targetpds = BeanUtils.getPropertyDescriptors(destDTOClass);
            PropertyDescriptor sourcepd = null;
            if (log.isDebugEnabled()) {
                log.debug(" found " + targetpds.length + " properties for type " + destDTOClass.getName());
            }

            for (int i = 0; i < targetpds.length; i++) {
                if (targetpds[i].getWriteMethod() != null) {
                    Method writeMethod = targetpds[i].getWriteMethod();
                    sourcepd = BeanUtils.getPropertyDescriptor(sourceDTO.getClass(), targetpds[i].getName());
                    if (sourcepd != null && sourcepd.getReadMethod() != null) {
                        if (log.isDebugEnabled()) {
                            log.debug("[" + getClass().getSimpleName() + "::convertDTO] found property: "
                                    + targetpds[i].getName());
                            log.debug("[" + getClass().getSimpleName() + "::convertDTO] source type: "
                                    + sourcepd.getPropertyType().getName() + ", dest type: "
                                    + targetpds[i].getPropertyType().getName());
                        }
                        Method readMethod = sourcepd.getReadMethod();
                        Object valueObject = null;
                        if (!BeanUtils.isSimpleProperty(targetpds[i].getPropertyType())) {
                            if (sourcepd.getPropertyType().isArray()) {
                                valueObject = convertDTOArray(
                                        (Object[]) readMethod.invoke(sourceDTO, new Object[] {}),
                                        targetpds[i].getPropertyType().getComponentType());
                            } else if (sourcepd.getPropertyType().equals(java.util.Calendar.class)
                                    && targetpds[i].getPropertyType().equals(java.util.Date.class)) {
                                // if java.util.Calendar => convert to java.util.Date
                                valueObject = readMethod.invoke(sourceDTO, new Object[0]);
                                if (valueObject != null) {
                                    valueObject = ((Calendar) valueObject).getTime();
                                }
                            } else if (sourcepd.getPropertyType().equals(java.util.Date.class)
                                    && targetpds[i].getPropertyType().equals(java.util.Calendar.class)) {
                                // if java.util.Date => convert to java.util.Calendar
                                Calendar calendar = Calendar.getInstance();
                                valueObject = readMethod.invoke(sourceDTO, new Object[0]);
                                if (valueObject != null) {
                                    calendar.setTime((Date) valueObject);
                                    valueObject = calendar;
                                }
                            } else {
                                valueObject = convertDTO(readMethod.invoke(sourceDTO, new Object[0]),
                                        targetpds[i].getPropertyType());
                            }
                        } else {
                            valueObject = readMethod.invoke(sourceDTO, new Object[0]);
                        }
                        if (log.isDebugEnabled()) {
                            log.debug("[" + getClass().getSimpleName() + "::convertDTO] writing value: "
                                    + valueObject);
                        }
                        writeMethod.invoke(destDTO, new Object[] { valueObject });
                    } else {
                        if (log.isDebugEnabled()) {
                            log.debug("[" + getClass().getSimpleName() + "::convertDTO] skipping property: "
                                    + targetpds[i].getName());
                        }
                    }
                }
            }
        }
    } catch (Exception e) {
        log.error("[" + getClass().getSimpleName() + "::convertDTO] ERROR", e);
        throw e;
    } finally {
        if (log.isDebugEnabled()) {
            log.debug("[" + getClass().getSimpleName() + "::convertDTO] END");
        }
    }
    return destDTO;
}

From source file:net.sf.sail.webapp.spring.impl.CustomContextLoader.java

/**
 * The behaviour of this method is the same as the superclass except for
 * setting of the config locations./*from  w  w  w.ja v a2  s.  c  o m*/
 * 
 * @throws ClassNotFoundException
 * 
 * @see org.springframework.web.context.ContextLoader#createWebApplicationContext(javax.servlet.ServletContext,
 *      org.springframework.context.ApplicationContext)
 */
@Override
protected WebApplicationContext createWebApplicationContext(ServletContext servletContext,
        ApplicationContext parent) throws BeansException {

    Class<?> contextClass = determineContextClass(servletContext);
    if (!ConfigurableWebApplicationContext.class.isAssignableFrom(contextClass)) {
        throw new ApplicationContextException("Custom context class [" + contextClass.getName()
                + "] is not of type ConfigurableWebApplicationContext");
    }

    ConfigurableWebApplicationContext webApplicationContext = (ConfigurableWebApplicationContext) BeanUtils
            .instantiateClass(contextClass);
    webApplicationContext.setParent(parent);
    webApplicationContext.setServletContext(servletContext);

    String configClass = servletContext.getInitParameter(CONFIG_CLASS_PARAM);
    if (configClass != null) {
        try {
            SpringConfiguration springConfig = (SpringConfiguration) BeanUtils
                    .instantiateClass(Class.forName(configClass));
            webApplicationContext.setConfigLocations(springConfig.getRootApplicationContextConfigLocations());
        } catch (ClassNotFoundException e) {
            if (LOGGER.isErrorEnabled()) {
                LOGGER.error(CONFIG_CLASS_PARAM + " <" + configClass + "> not found.", e);
            }
            throw new InvalidParameterException("ClassNotFoundException: " + configClass);
        }
    } else {
        throw new InvalidParameterException("No value defined for the required: " + CONFIG_CLASS_PARAM);
    }

    webApplicationContext.refresh();
    return webApplicationContext;
}

From source file:net.yasion.common.core.bean.wrapper.impl.ExtendedBeanWrapperImpl.java

/**
 * Create new BeanWrapperImpl, wrapping a new instance of the specified class.
 * /* w  w  w  .  j  ava 2 s  .  com*/
 * @param clazz
 *            class to instantiate and wrap
 */
public ExtendedBeanWrapperImpl(Class<?> clazz) {
    registerDefaultEditors();
    setWrappedInstance(BeanUtils.instantiateClass(clazz));
}

From source file:org.alfresco.repo.web.util.AbstractJettyComponent.java

protected WebApplicationContext createWebApplicationContext(ServletContext sc, ApplicationContext parent) {
    GenericWebApplicationContext wac = (GenericWebApplicationContext) BeanUtils
            .instantiateClass(GenericWebApplicationContext.class);

    // Assign the best possible id value.
    wac.setId(ConfigurableWebApplicationContext.APPLICATION_CONTEXT_ID_PREFIX + contextPath);

    wac.setParent(parent);/*from   w  w w  .  j av  a2  s  .c o  m*/
    wac.setServletContext(sc);
    wac.refresh();

    return wac;
}

From source file:org.apdplat.platform.util.ReflectionUtils.java

/**
 *
 * @param <T>/*from  w w w.j  a  v  a  2s . c o m*/
 * @param instance
 * @return
 */
@SuppressWarnings("unchecked")
public static <T> T cloneInstance(T instance) {
    Class<T> cls = (Class<T>) instance.getClass();
    T newIns = (T) BeanUtils.instantiateClass(cls);
    BeanUtils.copyProperties(instance, newIns);
    return newIns;
}

From source file:org.capelin.transaction.dao.RecordDao.java

/**
 * Create a new Record with is assigned by setRecordClass()
 * //from  w  w  w.  java2s  .  c om
 * @return CapelinRecord
 */
public CapelinRecord newRecord() {
    return (CapelinRecord) BeanUtils.instantiateClass(recordClass);
}

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

/**
 * Returns the value of the specified property and type from an instance of the specified Grails class
 *
 * @param clazz The name of the class which contains the property
 * @param propertyName The property name
 * @param propertyType The property type
 *
 * @return The value of the property or null if none exists
 *///from w  w  w.j a  va 2s . c o  m
@SuppressWarnings({ "unchecked", "rawtypes" })
public static Object getPropertyValueOfNewInstance(Class clazz, String propertyName, Class<?> propertyType) {
    // validate
    if (clazz == null || StringUtils.isBlank(propertyName)) {
        return null;
    }

    try {
        return getPropertyOrStaticPropertyOrFieldValue(BeanUtils.instantiateClass(clazz), propertyName);
    } catch (BeanInstantiationException e) {
        return null;
    }
}

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

/**
 * Returns the value of the specified property and type from an instance of the specified Grails class
 *
 * @param clazz The name of the class which contains the property
 * @param propertyName The property name
 *
 * @return The value of the property or null if none exists
 *///from  w  w w .j a va 2 s  .  com
public static Object getPropertyValueOfNewInstance(Class<?> clazz, String propertyName) {
    // validate
    if (clazz == null || StringUtils.isBlank(propertyName)) {
        return null;
    }

    try {
        return getPropertyOrStaticPropertyOrFieldValue(BeanUtils.instantiateClass(clazz), propertyName);
    } catch (BeanInstantiationException e) {
        return null;
    }
}