BAEL-1414 Learn to Fully Leverage Java Server Faces (#3446)
This commit is contained in:
Sergey Petunin
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package com.stackify.deepjsf;
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import javax.faces.bean.ManagedBean;
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import javax.faces.bean.RequestScoped;
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@ManagedBean
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@RequestScoped
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public class GreetControllerBean {
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public String greet() {
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return "greet";
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}
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}
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package com.stackify.deepjsf;
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import javax.faces.bean.ManagedBean;
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import javax.faces.bean.RequestScoped;
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import javax.faces.component.UIComponent;
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import javax.faces.component.UIViewRoot;
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import javax.faces.component.visit.VisitContext;
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import javax.faces.component.visit.VisitResult;
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import javax.faces.event.PhaseEvent;
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import javax.faces.event.PhaseId;
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import javax.servlet.http.HttpServletRequest;
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@ManagedBean
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@RequestScoped
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public class PhaseListenerBean {
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public void beforeListener(PhaseEvent event) {
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if (!event.getPhaseId().equals(PhaseId.RENDER_RESPONSE)) {
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return;
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}
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UIViewRoot root = event.getFacesContext().getViewRoot();
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boolean showNewFeature = showNewFeatureForIp(event);
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processComponentTree(root, event, showNewFeature);
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}
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private boolean showNewFeatureForIp(PhaseEvent event) {
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HttpServletRequest request = (HttpServletRequest) event.getFacesContext()
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.getExternalContext().getRequest();
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String ip = request.getRemoteAddr();
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return !ip.startsWith("127.0");
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}
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private void processComponentTree(UIComponent component, PhaseEvent event, boolean show) {
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component.visitTree(VisitContext.createVisitContext(event.getFacesContext()),
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(context, target) -> {
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if (target.getId() != null
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&& target.getId().startsWith("new-feature-")
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&& !show) {
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target.setRendered(false);
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}
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return VisitResult.ACCEPT;
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});
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}
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}
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package com.stackify.deepjsf;
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import javax.faces.bean.ManagedBean;
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import javax.faces.bean.SessionScoped;
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import javax.faces.event.ValueChangeEvent;
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@ManagedBean
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@SessionScoped
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public class UserBean {
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private String name = "";
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private String lastName = "";
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private String proposedLogin = "";
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public void nameChanged(ValueChangeEvent event) {
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this.proposedLogin = event.getNewValue() + "-" + lastName;
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}
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public void lastNameChanged(ValueChangeEvent event) {
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this.proposedLogin = name + "-" + event.getNewValue();
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public String getLastName() {
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return lastName;
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}
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public void setLastName(String lastName) {
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this.lastName = lastName;
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}
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public String getProposedLogin() {
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return proposedLogin;
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}
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public void setProposedLogin(String proposedLogin) {
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this.proposedLogin = proposedLogin;
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}
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}
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@@ -0,0 +1,14 @@
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package com.stackify.deepjsf;
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import javax.faces.bean.ManagedBean;
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import javax.faces.bean.RequestScoped;
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@ManagedBean
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@RequestScoped
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public class UserControllerBean {
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public String register() {
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return "register-success";
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}
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}
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<?xml version='1.0' encoding='UTF-8'?>
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<faces-config version="2.2" xmlns="http://xmlns.jcp.org/xml/ns/javaee"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
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http://xmlns.jcp.org/xml/ns/javaee/web-facesconfig_2_2.xsd">
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<navigation-rule>
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<from-view-id>/register.xhtml</from-view-id>
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<navigation-case>
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<from-outcome>register-success</from-outcome>
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<to-view-id>/hello.xhtml</to-view-id>
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</navigation-case>
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</navigation-rule>
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</faces-config>
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml"
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xmlns:h="http://xmlns.jcp.org/jsf/html"
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xmlns:f="http://xmlns.jcp.org/jsf/core">
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<f:view beforePhase="#{phaseListenerBean.beforeListener}">
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<h:outputLabel value="Hello, #{userBean.name}"/>
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<h:outputLabel id="new-feature-last-name" value=" #{userBean.lastName}"/>
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</f:view>
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</html>
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml"
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xmlns:h="http://xmlns.jcp.org/jsf/html"
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xmlns:f="http://xmlns.jcp.org/jsf/core">
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<f:view>
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<h:outputLabel value="Hello, #{userBean.name} #{userBean.lastName}! Your login is: #{userBean.proposedLogin}"/>
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</f:view>
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</html>
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@@ -0,0 +1,18 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml"
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xmlns:h="http://xmlns.jcp.org/jsf/html"
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xmlns:f="http://xmlns.jcp.org/jsf/core">
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<f:view beforePhase="#{phaseListenerBean.beforeListener}">
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<h:form>
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<h:panelGrid columns="2">
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<h:outputLabel value="First Name:"/>
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<h:inputText id="name" value="#{userBean.name}"/>
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<h:outputLabel id="new-feature-last-name-label" value="Last Name:"/>
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<h:inputText id="new-feature-last-name" value="#{userBean.lastName}"/>
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<h:commandButton value="Submit" action="#{greetControllerBean.greet}"/>
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</h:panelGrid>
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</h:form>
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</f:view>
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</html>
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@@ -0,0 +1,31 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml"
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xmlns:h="http://xmlns.jcp.org/jsf/html"
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xmlns:f="http://xmlns.jcp.org/jsf/core">
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<h:head>
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<h:outputScript library="javax.faces" name="jsf.js"/>
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</h:head>
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<f:view>
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<h:form>
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<h:panelGrid columns="2">
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<h:outputLabel value="First Name:"/>
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<h:inputText id="name" value="#{userBean.name}"
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valueChangeListener="#{userBean.nameChanged}">
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<f:ajax event="change" execute="@this" render="proposed-login"/>
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</h:inputText>
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<h:outputLabel id="lastname-label" value="Last Name:"/>
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<h:inputText id="lastname" value="#{userBean.lastName}"
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valueChangeListener="#{userBean.lastNameChanged}">
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<f:ajax event="change" execute="@this" render="proposed-login"/>
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</h:inputText>
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<h:outputLabel id="login-label" value="Proposed Login:"/>
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<h:inputText id="proposed-login" disabled="true" value="#{userBean.proposedLogin}"/>
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<h:commandButton value="Submit" action="#{userControllerBean.register}"/>
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</h:panelGrid>
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</h:form>
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</f:view>
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</html>
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