Java IVisit类代码示例

import org.apache.wicket.util.visit.IVisit; //导入依赖的package包/类
protected boolean isHiddenByModalContainer() {
    final MarkupContainer markupContainer = getContext().getMarkupContainer();
    final ModalContainer parentModalContainer = markupContainer.findParent(ModalContainer.class);
    if (parentModalContainer != null && !parentModalContainer.isShowing()) {
        //this modal container is not showing this component currently
        return true;
    }
    final Boolean showingChildModalContainerFound = markupContainer.visitChildren(ModalContainer.class,
            new IVisitor<ModalContainer, Boolean>() {
                @Override
                public void component(final ModalContainer object, final IVisit<Boolean> visit) {
                    if (object.isShowing()) {
                        //a child modal container is blocking this component currently
                        visit.stop(true);
                    }
                }
            });
    return showingChildModalContainerFound != null && showingChildModalContainerFound;
}
 

import org.apache.wicket.util.visit.IVisit; //导入依赖的package包/类
@Override
protected Serializable convertInputToValue() throws ConversionException {
	final Serializable bean = (Serializable) getBeanDescriptor().newBeanInstance();
	
	visitChildren(PropertyEditor.class, new IVisitor<PropertyEditor<Serializable>, PropertyEditor<Serializable>>() {

		@Override
		public void component(PropertyEditor<Serializable> object, IVisit<PropertyEditor<Serializable>> visit) {
			object.getPropertyDescriptor().setPropertyValue(bean, object.getConvertedInput());
			visit.dontGoDeeper();
		}
		
	});
	
	return bean;
}
 

import org.apache.wicket.util.visit.IVisit; //导入依赖的package包/类
@Nullable
private SourceAware getSourceAware(String path) {
	return diffsView.visitChildren(new IVisitor<Component, SourceAware>() {

		@SuppressWarnings("unchecked")
		@Override
		public void component(Component object, IVisit<SourceAware> visit) {
			if (object instanceof ListItem) {
				ListItem<BlobChange> item = (ListItem<BlobChange>) object;
				if (item.getModelObject().getPaths().contains(path)) {
					visit.stop((SourceAware) item.get(DIFF_ID));
				} else {
					visit.dontGoDeeper();
				}
			} 
		}

	});
}
 

import org.apache.wicket.util.visit.IVisit; //导入依赖的package包/类
@Override
public void onConfigure() {
	super.onConfigure();

	toolbars.configure();

	Boolean visible = toolbars.visitChildren(new IVisitor<Component, Boolean>() {
		@Override
		public void component(Component object, IVisit<Boolean> visit) {
			object.configure();
			if (object.isVisible()) {
				visit.stop(Boolean.TRUE);
			} else {
				visit.dontGoDeeper();
			}
		}
	});
	if (visible == null) {
		visible = false;
	}
	setVisible(visible);
}
 

import org.apache.wicket.util.visit.IVisit; //导入依赖的package包/类
protected void invokeForcedButtonOnValidationError(final Component component) {
    /*
     * On forced button method we need to synchronize all valid properties into the model and reset all invalid ones
     * with the values of the model.
     */
    final Component root = Components.findRoot(component);
    final Form<?> form = Components.findForm(root);
    FormComponent.visitFormComponentsPostOrder(form, new IVisitor<FormComponent<?>, Void>() {
        @Override
        public void component(final FormComponent<?> object, final IVisit<Void> visit) {
            if (object.isEnabledInHierarchy() && object.isVisibleInHierarchy() && !object.isValid()) {
                /*
                 * need to clear individual components besides the form to make GridColumnBorder not display error
                 * even though there should be none because form was cleared
                 */
                object.clearInput();
                object.getFeedbackMessages().clear();
            }
        }
    });
    //clear the form itself
    form.clearInput();
    form.getSession().getFeedbackMessages().clear();
    invokeButtonMethod(component);
}
 

import org.apache.wicket.util.visit.IVisit; //导入依赖的package包/类
/**
 * Synchronize valid model values so that validator utilities have something to work with. This is useful in onError
 * calls in submit behaviors
 */
public static boolean updateValidModelsOnValidationError(final Component component) {
    final Component root = Components.findRoot(component);
    final Form<?> form = Components.findForm(root);
    final AtomicBoolean invalidFound = new AtomicBoolean(false);
    FormComponent.visitFormComponentsPostOrder(form, new IVisitor<FormComponent<?>, Void>() {
        @Override
        public void component(final FormComponent<?> object, final IVisit<Void> visit) {
            if (object.isEnabledInHierarchy() && object.isVisibleInHierarchy()
            //fileUploadField chokes on FileNotFound if synchronized twice in a call!
                    && !(object instanceof FileUploadField)) {
                try {
                    object.updateModel(); //fill in values regardless of valid state, since complex validation rules might require all inputs
                } catch (final Throwable t) {
                    //ignore
                }
                object.validate();
                if (!object.isValid()) {
                    invalidFound.set(true);
                }
            }
        }
    });
    return invalidFound.get();
}
 

import org.apache.wicket.util.visit.IVisit; //导入依赖的package包/类
/**
 * This method is called on each page refresh to remember the previous state of feedback messages for rollback
 */
public static void rememberAllFeedbackMessages(final Component component) {
    Assertions.assertThat(RequestCycle.get().getMetaData(KEY_PREVIOUS_MESSAGES)).isNull();
    //CHECKSTYLE:OFF
    final Map<String, List<FeedbackMessage>> markupId_previousMessages = new HashMap<String, List<FeedbackMessage>>();
    //CHECKSTYLE:ON
    component.getPage().visitChildren(new IVisitor<Component, Void>() {
        @Override
        public void component(final Component object, final IVisit<Void> visit) {
            if (object.hasFeedbackMessage()) {
                final List<FeedbackMessage> previousMessages = new ArrayList<FeedbackMessage>(
                        object.getFeedbackMessages().toList());
                markupId_previousMessages.put(object.getMarkupId(), previousMessages);
            }
        }
    });
    RequestCycle.get().setMetaData(KEY_PREVIOUS_MESSAGES, markupId_previousMessages);
}
 

import org.apache.wicket.util.visit.IVisit; //导入依赖的package包/类
public static void rollbackAllFeedbackMessages(final Component component) {
    final Map<String, List<FeedbackMessage>> markupId_previousMessages = RequestCycle.get()
            .getMetaData(KEY_PREVIOUS_MESSAGES);
    Assertions.assertThat(markupId_previousMessages).isNotNull();
    component.getPage().visitChildren(new IVisitor<Component, Void>() {
        @Override
        public void component(final Component object, final IVisit<Void> visit) {
            if (object != component) {
                object.getFeedbackMessages().clear();
                final List<FeedbackMessage> previousMessages = markupId_previousMessages.get(object.getMarkupId());
                if (previousMessages != null) {
                    for (final FeedbackMessage previousMessage : previousMessages) {
                        object.getFeedbackMessages().add(previousMessage);
                    }
                }
            }
        }
    });
    RequestCycle.get().setMetaData(KEY_PREVIOUS_MESSAGES, null);
}
 

import org.apache.wicket.util.visit.IVisit; //导入依赖的package包/类
/**
 * Gets the DateTextField inside this datepicker wrapper.
 *
 * @return the date field
 */
public DateTextField getDateTextField()
{
	DateTextField component = visitChildren(DateTextField.class, new IVisitor<DateTextField, DateTextField>() {
		@Override
		public void component(DateTextField arg0, IVisit<DateTextField> arg1) {
			arg1.stop(arg0);
		}
	});

	if (component == null) {
		
		throw new WicketRuntimeException("BootstrapDateTimepicker didn't have any DateTextField child!");
	}
	
	return component;
}
 

import org.apache.wicket.util.visit.IVisit; //导入依赖的package包/类
@Override
protected void onConfigure() {
	super.onConfigure();
	
	filter = new IFeedbackMessageFilter() {
		private static final long serialVersionUID = -7726392072697648969L;

		public boolean accept(final FeedbackMessage msg) {
			Boolean b = visitChildren(FormComponent.class, new IVisitor<FormComponent<?>, Boolean>() {
				@Override
				public void component(FormComponent<?> arg0, IVisit<Boolean> arg1) {
					if (arg0.equals(msg.getReporter()))
						arg1.stop(true);
				}
			});

			if (b == null)
				return false;

			return b;
		}
	};
}
 

import org.apache.wicket.util.visit.IVisit; //导入依赖的package包/类
@Override
public boolean accept(final FeedbackMessage message) {
	if(BootstrapFeedbackPanel.this.getParent()!=null){
		BootstrapFeedbackPopover innerAccepted = BootstrapFeedbackPanel.this.getParent()
				.visitChildren(BootstrapFeedbackPopover.class, new IVisitor<BootstrapFeedbackPopover, BootstrapFeedbackPopover>() {

			@Override
			public void component(BootstrapFeedbackPopover object, IVisit<BootstrapFeedbackPopover> visit) {
				if(object.getFilter().accept(message)){
					visit.stop(object);
				}
			}
		});
		
		return innerAccepted==null;
	}
	return true;
}
 

import org.apache.wicket.util.visit.IVisit; //导入依赖的package包/类
@Override
protected void onInitialize() {
	super.onInitialize();

	filter = new IFeedbackMessageFilter() {
		private static final long serialVersionUID = -7726392072697648969L;

		public boolean accept(final FeedbackMessage msg) {
			Boolean b = visitChildren(FormComponent.class, new IVisitor<FormComponent<?>, Boolean>() {
				@Override
				public void component(FormComponent<?> arg0, IVisit<Boolean> arg1) {
					if (arg0.equals(msg.getReporter()))
						arg1.stop(true);
				}
			});

			if (b == null)
				return false;

			return b;
		}
	};

}
 

import org.apache.wicket.util.visit.IVisit; //导入依赖的package包/类
protected <V extends Serializable> Component findComponentByProp(
        final String property, final String searchPath, final V key) {

    Component component = TESTER.getComponentFromLastRenderedPage(searchPath);
    return (component instanceof MarkupContainer ? MarkupContainer.class.cast(component) : component.getPage()).
            visitChildren(ListItem.class, (final ListItem<?> object, final IVisit<Component> visit) -> {
                try {
                    Method getter = PropertyResolver.getPropertyGetter(property, object.getModelObject());
                    if (getter != null && getter.invoke(object.getModelObject()).equals(key)) {
                        visit.stop(object);
                    }
                } catch (Exception e) {
                    LOG.error("Error invoke method", e);
                }
            });
}
 

import org.apache.wicket.util.visit.IVisit; //导入依赖的package包/类
private Component searchLog(final String property, final String searchPath, final String key) {
    Component component = TESTER.getComponentFromLastRenderedPage(searchPath);

    Component result = component.getPage().
            visitChildren(ListItem.class, (final ListItem<LoggerTO> object, final IVisit<Component> visit) -> {
                try {
                    if (object.getModelObject() instanceof LoggerTO && PropertyResolver.getPropertyGetter(
                            property, object.getModelObject()).invoke(object.getModelObject()).equals(key)) {
                        visit.stop(object);
                    }
                } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException ex) {
                    LOG.error("Error invoke method", ex);
                }
            });
    return result;
}
 

import org.apache.wicket.util.visit.IVisit; //导入依赖的package包/类
public void updatePage(AjaxRequestTarget target) {
    MarkupContainer root = SynchronizerHelper.findRoot(target.getPage());
    IVisitor<Component, Object> visitor = new IVisitor<Component, Object>() {
        @Override
        public void component(Component object, IVisit<Object> visit) {
            if (object instanceof MarkupContainer && object.getClass().equals(page.getClass())
                    && StringUtils.equals(page.getId(), object.getId())) {
                DMDWebGenPageContext.this.page = (MarkupContainer) object;
                pageUpdated = true;
            }
        }
    };
    visitor.component(root, null);
    root.visitChildren(visitor);
    if (pageUpdated == null) {
        pageUpdated = false;
    }
}