List of usage examples for java.beans Introspector getBeanInfo
public static BeanInfo getBeanInfo(Class<?> beanClass) throws IntrospectionException
From source file:org.rhq.core.pluginapi.util.ObjectUtil.java
/** * Returns the value of the property with the specified name for the given Object, or null if the Object has no such * property.//from w w w . j a va 2 s . co m * * @param obj an Object * @param propertyName the name of the property whose value should be returned * * @return the value of the property with the specified name for the given Object, or null if the Object has no such * property */ @Nullable public static Object lookupAttributeProperty(Object obj, String propertyName) { Object value = null; if (obj instanceof CompositeData) { CompositeData compositeData = ((CompositeData) obj); if (compositeData.containsKey(propertyName)) { value = compositeData.get(propertyName); } else { LOG.debug("Unable to read attribute/property [" + propertyName + "] from object [" + obj + "] using OpenMBean API - no such property."); } } else { // Try to use reflection. try { PropertyDescriptor[] pds = Introspector.getBeanInfo(obj.getClass()).getPropertyDescriptors(); boolean propertyFound = false; for (PropertyDescriptor pd : pds) { if (pd.getName().equals(propertyName)) { propertyFound = true; Method readMethod = pd.getReadMethod(); if (readMethod == null) { LOG.debug("Unable to read attribute/property [" + propertyName + "] from object [" + obj + "] using Reflection - property is not readable (i.e. it has no getter)."); } else { value = readMethod.invoke(obj); } } } if (!propertyFound) { LOG.debug("Unable to read attribute/property [" + propertyName + "] from object [" + obj + "] using Reflection - no such property."); } } catch (Exception e) { LOG.debug("Unable to read attribute/property [" + propertyName + "] from object [" + obj + "] using Reflection - cause: " + ThrowableUtil.getAllMessages(e)); } } return value; }
From source file:net.audumla.concurrent.TemplatedExecuter.java
protected void mergeProperties(Object source, Object destination) throws IntrospectionException { BeanInfo info = Introspector.getBeanInfo(source.getClass()); for (PropertyDescriptor descriptor : info.getPropertyDescriptors()) { try {/* w ww . j av a2 s .co m*/ // get the property value from the destination object. Object destvalue = BeanUtils.getProperty(destination, descriptor.getName()); // only copy the value if the destination has not been set. This will therefore only work on non primitive types if (destvalue == null) { Object sourceValue = descriptor.getReadMethod().invoke(source); // Only copy values values where the destination values is null if (sourceValue != null) { BeanUtils.copyProperty(destination, descriptor.getName(), sourceValue); } } } catch (Exception ignored) { } } }
From source file:org.eclipse.scada.da.core.VariantBeanHelper.java
/** * Extract the property data as string/variant map * @param source the source object// w w w. j ava 2 s .c om * @return the map with bean data * @throws IntrospectionException * @throws IllegalArgumentException * @throws IllegalAccessException * @throws InvocationTargetException */ public static Map<String, Variant> extract(final Object source) throws IntrospectionException, IllegalArgumentException, IllegalAccessException, InvocationTargetException { final Map<String, Variant> result = new HashMap<String, Variant>(); final BeanInfo bi = Introspector.getBeanInfo(source.getClass()); for (final PropertyDescriptor pd : bi.getPropertyDescriptors()) { final Method m = pd.getReadMethod(); if (m != null) { result.put(pd.getName(), Variant.valueOf(m.invoke(source))); } } return result; }
From source file:org.parancoe.validator.constraints.impl.NewPasswordLengthValidator.java
@Override public boolean isValid(Object value, ConstraintValidatorContext context) { String newPasswordValue = null; String confirmPasswordValue = null; boolean newPasswordFound = false; boolean confirmPasswordFound = false; try {/*from ww w . j ava 2 s .c o m*/ BeanInfo beanInfo = Introspector.getBeanInfo(value.getClass()); PropertyDescriptor[] propertyDescriptors = beanInfo.getPropertyDescriptors(); for (PropertyDescriptor propertyDescriptor : propertyDescriptors) { if (constraintAnnotation.newPasswordProperty().equals(propertyDescriptor.getName())) { newPasswordValue = (String) propertyDescriptor.getReadMethod().invoke(value); newPasswordFound = true; } if (constraintAnnotation.confirmPasswordProperty().equals(propertyDescriptor.getName())) { confirmPasswordValue = (String) propertyDescriptor.getReadMethod().invoke(value); confirmPasswordFound = true; } if (newPasswordFound && confirmPasswordFound) { break; } } } catch (Exception ex) { throw new RuntimeException("Can't validate this bean.", ex); } if (!newPasswordFound) { throw new RuntimeException("Can't validate this bean: property " + constraintAnnotation.newPasswordProperty() + " not found."); } if (!confirmPasswordFound) { throw new RuntimeException("Can't validate this bean: property " + constraintAnnotation.confirmPasswordProperty() + " not found."); } if (constraintAnnotation.passIfBlank()) { if (value == null || (StringUtils.isBlank(newPasswordValue) && StringUtils.isBlank(confirmPasswordValue))) { return true; } } boolean result = true; if (StringUtils.isNotBlank(newPasswordValue) && (newPasswordValue.length() < constraintAnnotation.min() || newPasswordValue.length() > constraintAnnotation.max())) { context.disableDefaultConstraintViolation(); context.buildConstraintViolationWithTemplate( "{org.parancoe.validator.constraints.NewPasswordLength.message}").addNode("newPassword") .addConstraintViolation().disableDefaultConstraintViolation(); result = false; } return result; }
From source file:org.yccheok.jstock.gui.analysis.ObjectInspectorJPanel.java
/** Creates a new instance of ObjectInspectorJPanel */ public ObjectInspectorJPanel(Object bean) { this.bean = bean; BeanInfo beanInfo = null;/*from w w w .j a v a 2 s. c om*/ try { beanInfo = Introspector.getBeanInfo(bean.getClass()); } catch (IntrospectionException exp) { log.error(null, exp); } this.getTable().setEditorFactory(new PropertyEditorRegistryEx()); PropertyEditorRegistry editor = (PropertyEditorRegistry) this.getTable().getEditorFactory(); PropertyRendererRegistry renderer = (PropertyRendererRegistry) this.getTable().getRendererFactory(); editor.registerEditor(Enum.class, new EnumComboBoxPropertyEditor()); DefaultCellRenderer r = new DefaultCellRenderer(); r.setShowOddAndEvenRows(false); renderer.registerRenderer(Enum.class, r); this.setMode(PropertySheet.VIEW_AS_FLAT_LIST); this.setToolBarVisible(false); this.setDescriptionVisible(false); this.setToolBarVisible(true); this.setBeanInfo(beanInfo); Property[] properties = this.getProperties(); for (int i = 0, c = properties.length; i < c; i++) { properties[i].readFromObject(bean); } PropertyChangeListener listener = new PropertyChangeListener() { public void propertyChange(PropertyChangeEvent evt) { Property prop = (Property) evt.getSource(); prop.writeToObject(ObjectInspectorJPanel.this.bean); } }; this.addPropertySheetChangeListener(listener); }
From source file:org.rifidi.designer.entities.properties.DefaultPropertySource.java
/** * Constructor.//from ww w . j a v a 2s. c o m * @param entity */ public DefaultPropertySource(Entity entity) { this.entity = entity; try { propertyDescriptors = new ArrayList<PropertyDescriptor>(); for (java.beans.PropertyDescriptor prop : Introspector.getBeanInfo(entity.getClass()) .getPropertyDescriptors()) { //only check properties that have a setter method if (prop.getWriteMethod() != null && prop.getWriteMethod().getAnnotation(Property.class) != null) { Property property = prop.getWriteMethod().getAnnotation(Property.class); String displayName = ""; if (property.unit().length() > 0) { displayName = property.displayName() + " (" + property.unit() + ")"; } else { displayName = property.displayName(); } if (property.readonly()) { propertyDescriptors.add(new PropertyDescriptor(prop, displayName)); } else if (prop.getDisplayName().equals("group")) { ComboPropertyDescriptor coProp = new ComboPropertyDescriptor(prop, displayName); coProp.setLabelProvider(new ComboLabelProvider()); propertyDescriptors.add(coProp); } else if (prop.getPropertyType().equals(String.class)) { propertyDescriptors.add(new TextPropertyDescriptor(prop, displayName)); } else if (prop.getPropertyType().equals(Float.class) || prop.getPropertyType().getCanonicalName().equals("float")) { propertyDescriptors.add(new FloatPropertyDescriptor(prop, displayName)); } else { propertyDescriptors.add(new PropertyDescriptor(prop, displayName)); } } } } catch (IntrospectionException e) { logger.fatal(e); } }
From source file:org.psnively.scala.beans.ScalaBeanInfo.java
public ScalaBeanInfo(Class<?> beanClass) throws IntrospectionException { this(Introspector.getBeanInfo(beanClass)); }
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 .ja va 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);
}
}
}
}
}
From source file:org.androidtransfuse.processor.Merger.java
private <T extends Mergeable> T mergeMergeable(Class<? extends T> targetClass, T target, T source) throws MergerException { try {// www . java2 s .c om BeanInfo beanInfo = Introspector.getBeanInfo(targetClass); PropertyDescriptor[] propertyDescriptors = beanInfo.getPropertyDescriptors(); for (PropertyDescriptor propertyDescriptor : propertyDescriptors) { Method getter = propertyDescriptor.getReadMethod(); Method setter = propertyDescriptor.getWriteMethod(); String propertyName = propertyDescriptor.getDisplayName(); if (PropertyUtils.isWriteable(target, propertyName)) { //check for mergeCollection MergeCollection mergeCollection = findAnnotation(MergeCollection.class, getter, setter); if (Collection.class.isAssignableFrom(propertyDescriptor.getPropertyType())) { PropertyUtils.setProperty(target, propertyName, mergeList(mergeCollection, propertyName, target, source)); } //check for merge Merge mergeAnnotation = findAnnotation(Merge.class, getter, setter); PropertyUtils.setProperty(target, propertyName, mergeProperties(mergeAnnotation, propertyName, target, source)); } } } catch (NoSuchMethodException e) { throw new MergerException("NoSuchMethodException while trying to merge", e); } catch (IntrospectionException e) { throw new MergerException("IntrospectionException while trying to merge", e); } catch (IllegalAccessException e) { throw new MergerException("IllegalAccessException while trying to merge", e); } catch (InvocationTargetException e) { throw new MergerException("InvocationTargetException while trying to merge", e); } return target; }
From source file:org.drools.Cheese.java
public static int getIndex(final Class clazz, final String name) throws IntrospectionException { final PropertyDescriptor[] descriptors = Introspector.getBeanInfo(clazz).getPropertyDescriptors(); for (int i = 0; i < descriptors.length; i++) { if (descriptors[i].getName().equals(name)) { return i; }/*from w w w . j a va 2 s . co m*/ } return -1; }