List of usage examples for org.springframework.beans PropertyValues isEmpty
boolean isEmpty();
From source file:org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.java
/** * Apply the given property values, resolving any runtime references * to other beans in this bean factory. Must use deep copy, so we * don't permanently modify this property. * @param beanName the bean name passed for better exception information * @param mbd the merged bean definition * @param bw the BeanWrapper wrapping the target object * @param pvs the new property values//from w w w . j a va 2 s . c om */ protected void applyPropertyValues(String beanName, BeanDefinition mbd, BeanWrapper bw, PropertyValues pvs) { if (pvs.isEmpty()) { return; } if (System.getSecurityManager() != null && bw instanceof BeanWrapperImpl) { ((BeanWrapperImpl) bw).setSecurityContext(getAccessControlContext()); } MutablePropertyValues mpvs = null; List<PropertyValue> original; if (pvs instanceof MutablePropertyValues) { mpvs = (MutablePropertyValues) pvs; if (mpvs.isConverted()) { // Shortcut: use the pre-converted values as-is. try { bw.setPropertyValues(mpvs); return; } catch (BeansException ex) { throw new BeanCreationException(mbd.getResourceDescription(), beanName, "Error setting property values", ex); } } original = mpvs.getPropertyValueList(); } else { original = Arrays.asList(pvs.getPropertyValues()); } TypeConverter converter = getCustomTypeConverter(); if (converter == null) { converter = bw; } BeanDefinitionValueResolver valueResolver = new BeanDefinitionValueResolver(this, beanName, mbd, converter); // Create a deep copy, resolving any references for values. List<PropertyValue> deepCopy = new ArrayList<>(original.size()); boolean resolveNecessary = false; for (PropertyValue pv : original) { if (pv.isConverted()) { deepCopy.add(pv); } else { String propertyName = pv.getName(); Object originalValue = pv.getValue(); Object resolvedValue = valueResolver.resolveValueIfNecessary(pv, originalValue); Object convertedValue = resolvedValue; boolean convertible = bw.isWritableProperty(propertyName) && !PropertyAccessorUtils.isNestedOrIndexedProperty(propertyName); if (convertible) { convertedValue = convertForProperty(resolvedValue, propertyName, bw, converter); } // Possibly store converted value in merged bean definition, // in order to avoid re-conversion for every created bean instance. if (resolvedValue == originalValue) { if (convertible) { pv.setConvertedValue(convertedValue); } deepCopy.add(pv); } else if (convertible && originalValue instanceof TypedStringValue && !((TypedStringValue) originalValue).isDynamic() && !(convertedValue instanceof Collection || ObjectUtils.isArray(convertedValue))) { pv.setConvertedValue(convertedValue); deepCopy.add(pv); } else { resolveNecessary = true; deepCopy.add(new PropertyValue(pv, convertedValue)); } } } if (mpvs != null && !resolveNecessary) { mpvs.setConverted(); } // Set our (possibly massaged) deep copy. try { bw.setPropertyValues(new MutablePropertyValues(deepCopy)); } catch (BeansException ex) { throw new BeanCreationException(mbd.getResourceDescription(), beanName, "Error setting property values", ex); } }
From source file:org.springframework.web.filter.GenericFilterBean.java
/** * Standard way of initializing this filter. * Map config parameters onto bean properties of this filter, and * invoke subclass initialization.//from w w w. j a v a 2s. c om * @param filterConfig the configuration for this filter * @throws ServletException if bean properties are invalid (or required * properties are missing), or if subclass initialization fails. * @see #initFilterBean */ @Override public final void init(FilterConfig filterConfig) throws ServletException { Assert.notNull(filterConfig, "FilterConfig must not be null"); if (logger.isDebugEnabled()) { logger.debug("Initializing filter '" + filterConfig.getFilterName() + "'"); } this.filterConfig = filterConfig; // Set bean properties from init parameters. PropertyValues pvs = new FilterConfigPropertyValues(filterConfig, this.requiredProperties); if (!pvs.isEmpty()) { try { BeanWrapper bw = PropertyAccessorFactory.forBeanPropertyAccess(this); ResourceLoader resourceLoader = new ServletContextResourceLoader(filterConfig.getServletContext()); Environment env = this.environment; if (env == null) { env = new StandardServletEnvironment(); } bw.registerCustomEditor(Resource.class, new ResourceEditor(resourceLoader, env)); initBeanWrapper(bw); bw.setPropertyValues(pvs, true); } catch (BeansException ex) { String msg = "Failed to set bean properties on filter '" + filterConfig.getFilterName() + "': " + ex.getMessage(); logger.error(msg, ex); throw new NestedServletException(msg, ex); } } // Let subclasses do whatever initialization they like. initFilterBean(); if (logger.isDebugEnabled()) { logger.debug("Filter '" + filterConfig.getFilterName() + "' configured successfully"); } }
From source file:org.springframework.web.servlet.HttpServletBean.java
/** * Map config parameters onto bean properties of this servlet, and * invoke subclass initialization./* ww w . j av a 2s .c o m*/ * @throws ServletException if bean properties are invalid (or required * properties are missing), or if subclass initialization fails. */ @Override public final void init() throws ServletException { if (logger.isDebugEnabled()) { logger.debug("Initializing servlet '" + getServletName() + "'"); } // Set bean properties from init parameters. PropertyValues pvs = new ServletConfigPropertyValues(getServletConfig(), this.requiredProperties); if (!pvs.isEmpty()) { try { BeanWrapper bw = PropertyAccessorFactory.forBeanPropertyAccess(this); ResourceLoader resourceLoader = new ServletContextResourceLoader(getServletContext()); bw.registerCustomEditor(Resource.class, new ResourceEditor(resourceLoader, getEnvironment())); initBeanWrapper(bw); bw.setPropertyValues(pvs, true); } catch (BeansException ex) { if (logger.isErrorEnabled()) { logger.error("Failed to set bean properties on servlet '" + getServletName() + "'", ex); } throw ex; } } // Let subclasses do whatever initialization they like. initServletBean(); if (logger.isDebugEnabled()) { logger.debug("Servlet '" + getServletName() + "' configured successfully"); } }