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Merge pull request #4578 from MherBaghinyan/BAEL-1743_ 

Bael 1743
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Eric Martin 2018-07-04 12:49:05 -05:00 committed by GitHub
parent 684324fc10 52b1f322ef
commit bbd23add4a
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116
google-web-toolkit/pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<!-- POM file generated with GWT webAppCreator -->
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>google_web_toolkit</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>com.baeldung.Google_web_toolkit</name>
<properties>
<!-- Setting maven.compiler.source to something different to 1.8
needs that you configure the sourceLevel in gwt-maven-plugin since
GWT compiler 2.8 requires 1.8 (see gwt-maven-plugin block below) -->
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<!-- Don't let your Mac use a crazy non-standard encoding -->
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>
<dependencyManagement>
<dependencies>
<!-- ensure all GWT deps use the same version (unless overridden) -->
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt</artifactId>
<version>2.8.2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-servlet</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-user</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-dev</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<!-- Output classes directly into the webapp, so that IDEs and "mvn process-classes" update them in DevMode -->
<outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory>
<plugins>
<!-- GWT Maven Plugin-->
<plugin>
<groupId>net.ltgt.gwt.maven</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>1.0-rc-8</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>test</goal>
</goals>
</execution>
</executions>
<configuration>
<moduleName>com.baeldung.Google_web_toolkit</moduleName>
<moduleShortName>Google_web_toolkit</moduleShortName>
<failOnError>true</failOnError>
<!-- GWT compiler 2.8 requires 1.8, hence define sourceLevel here if you use
a different source language for java compilation -->
<sourceLevel>1.8</sourceLevel>
<!-- Compiler configuration -->
<compilerArgs>
<!-- Ask GWT to create the Story of Your Compile (SOYC) (gwt:compile) -->
<arg>-compileReport</arg>
<arg>-XcompilerMetrics</arg>
</compilerArgs>
<!-- DevMode configuration -->
<warDir>${project.build.directory}/${project.build.finalName}</warDir>
<classpathScope>compile+runtime</classpathScope>
<!-- URL(s) that should be opened by DevMode (gwt:devmode). -->
<startupUrls>
<startupUrl>Google_web_toolkit.html</startupUrl>
</startupUrls>
</configuration>
</plugin>
<!-- Skip normal test execution, we use gwt:test instead -->
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.17</version>
<configuration>
<skip>true</skip>
</configuration>
</plugin>
</plugins>
</build>
</project>

31
google-web-toolkit/src/main/java/com/baeldung/Google_web_toolkit.gwt.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<!--
When updating your version of GWT, you should also update this DTD reference,
so that your app can take advantage of the latest GWT module capabilities.
-->
<!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 2.8.2//EN"
"http://gwtproject.org/doctype/2.8.2/gwt-module.dtd">
<module rename-to='google_web_toolkit'>
<!-- Inherit the core Web Toolkit stuff. -->
<inherits name='com.google.gwt.user.User'/>
<!-- Inherit the default GWT style sheet. You can change -->
<!-- the theme of your GWT application by uncommenting -->
<!-- any one of the following lines. -->
<inherits name='com.google.gwt.user.theme.clean.Clean'/>
<!-- <inherits name='com.google.gwt.user.theme.standard.Standard'/> -->
<!-- <inherits name='com.google.gwt.user.theme.chrome.Chrome'/> -->
<!-- <inherits name='com.google.gwt.user.theme.dark.Dark'/> -->
<!-- Other module inherits -->
<!-- Specify the app entry point class. -->
<entry-point class='com.baeldung.client.Google_web_toolkit'/>
<!-- Specify the paths for translatable code -->
<source path='client'/>
<source path='shared'/>
<!-- allow Super Dev Mode -->
<add-linker name="xsiframe"/>
</module>

108
google-web-toolkit/src/main/java/com/baeldung/client/Google_web_toolkit.java Normal file
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package com.baeldung.client;
import com.baeldung.shared.MessageService;
import com.baeldung.shared.MessageServiceAsync;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyUpEvent;
import com.google.gwt.event.dom.client.KeyUpHandler;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.DialogBox;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.VerticalPanel;
/**
* Entry point classes define <code>onModuleLoad()</code>.
*/
public class Google_web_toolkit implements EntryPoint {
private final MessageServiceAsync messageServiceAsync = GWT.create(MessageService.class);
public void onModuleLoad() {
Button sendButton = new Button("Submit");
TextBox nameField = new TextBox();
nameField.setText("Hi there");
Label warningLabel = new Label();
sendButton.addStyleName("sendButton");
RootPanel.get("nameFieldContainer").add(nameField);
RootPanel.get("sendButtonContainer").add(sendButton);
RootPanel.get("errorLabelContainer").add(warningLabel);
Button closeButton = new Button("Thanks");
closeButton.getElement().setId("closeButton");
Label textToServerLabel = new Label();
HTML serverResponseLabel = new HTML();
VerticalPanel vPanel = new VerticalPanel();
vPanel.addStyleName("vPanel");
vPanel.add(new HTML("Sending message to the server:"));
vPanel.add(textToServerLabel);
vPanel.add(new HTML("<br><b>Server replies:</b>"));
vPanel.add(serverResponseLabel);
vPanel.setHorizontalAlignment(VerticalPanel.ALIGN_RIGHT);
vPanel.add(closeButton);
vPanel.setVisible(false);
RootPanel.get("serverResponseContainer").add(vPanel);
closeButton.addClickHandler(event -> {
sendButton.setEnabled(true);
sendButton.setFocus(true);
vPanel.setVisible(false);
});
class MyHandler implements ClickHandler, KeyUpHandler {
public void onClick(ClickEvent event) {
sendMessageToServer();
}
public void onKeyUp(KeyUpEvent event) {
if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER) {
sendMessageToServer();
}
}
private void sendMessageToServer() {
warningLabel.setText("");
String textToServer = nameField.getText();
if (textToServer == null || textToServer.isEmpty()) {
warningLabel.setText("Please enter the message");
return;
}
sendButton.setEnabled(false);
textToServerLabel.setText(textToServer);
serverResponseLabel.setText("");
messageServiceAsync.sendMessage(textToServer, new AsyncCallback<String>() {
public void onFailure(Throwable caught) {
serverResponseLabel.addStyleName("serverResponseLabelError");
serverResponseLabel.setHTML("server error occurred");
closeButton.setFocus(true);
}
public void onSuccess(String result) {
serverResponseLabel.removeStyleName("serverResponseLabelError");
serverResponseLabel.setHTML(result);
closeButton.setFocus(true);
vPanel.setVisible(true);
}
});
}
}
// Add a handler to send the name to the server
MyHandler handler = new MyHandler();
sendButton.addClickHandler(handler);
nameField.addKeyUpHandler(handler);
}
}

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google-web-toolkit/src/main/java/com/baeldung/server/MessageServiceImpl.java Normal file
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package com.baeldung.server;
import com.baeldung.shared.MessageService;
import com.google.gwt.user.server.rpc.RemoteServiceServlet;
import java.time.LocalDateTime;
/**
* The server-side implementation of the RPC service.
*/
@SuppressWarnings("serial")
public class MessageServiceImpl extends RemoteServiceServlet implements MessageService {
public String sendMessage(String message) throws IllegalArgumentException {
if (message == null) {
throw new IllegalArgumentException("message is null");
}
return "Hello, " + message + "!<br><br> Time received: " + LocalDateTime.now();
}
}

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google-web-toolkit/src/main/java/com/baeldung/shared/MessageService.java Normal file
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package com.baeldung.shared;
import com.google.gwt.user.client.rpc.RemoteService;
import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;
/**
* The client-side stub for the RPC service.
*/
@RemoteServiceRelativePath("greet")
public interface MessageService extends RemoteService {
String sendMessage(String message) throws IllegalArgumentException;
}

10
google-web-toolkit/src/main/java/com/baeldung/shared/MessageServiceAsync.java Normal file
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package com.baeldung.shared;
import com.google.gwt.user.client.rpc.AsyncCallback;
/**
* The async counterpart of <code>MessageService</code>.
*/
public interface MessageServiceAsync {
void sendMessage(String input, AsyncCallback<String> callback) throws IllegalArgumentException;
}

31
google-web-toolkit/src/main/webapp/Google_web_toolkit.css Normal file
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/** Add css rules here for your application. */
h1 {
font-size: 2em;
font-weight: bold;
color: #777777;
margin: 40px 0px 70px;
text-align: center;
}
.sendButton {
display: block;
font-size: 16pt;
}
/** Most GWT widgets already have a style name defined */
.gwt-DialogBox {
width: 400px;
}
.vPanel {
margin: 5px;
}
.serverResponseLabelError {
color: red;
}
/** Set ids using widget.getElement().setId("idOfElement") */
#closeButton {
margin: 15px 6px 6px;
}

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google-web-toolkit/src/main/webapp/Google_web_toolkit.html Normal file
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<!doctype html>
<!-- The DOCTYPE declaration above will set the -->
<!-- browser's rendering engine into -->
<!-- "Standards Mode". Replacing this declaration -->
<!-- with a "Quirks Mode" doctype is not supported. -->
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link type="text/css" rel="stylesheet" href="Google_web_toolkit.css">
<title>Sample GWT Application</title>
<script type="text/javascript" language="javascript" src="google_web_toolkit/google_web_toolkit.nocache.js"></script>
</head>
<body>
<h1>Sample GWT Application</h1>
<table align="center">
<tr>
<td colspan="2" style="font-weight:bold;">Please enter your message:</td>
</tr>
<tr>
<td id="nameFieldContainer"></td>
<td id="sendButtonContainer"></td>
</tr>
<tr>
<td colspan="2" style="color:red;" id="errorLabelContainer"></td>
</tr>
<tr>
<td colspan="2" style="color:red;" id="serverResponseContainer"></td>
</tr>
</table>
</body>
</html>

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google-web-toolkit/src/main/webapp/WEB-INF/web.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee">
<!-- Servlets -->
<servlet>
<servlet-name>greetServlet</servlet-name>
<servlet-class>com.baeldung.server.MessageServiceImpl</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>greetServlet</servlet-name>
<url-pattern>/google_web_toolkit/greet</url-pattern>
</servlet-mapping>
<!-- Default page to serve -->
<welcome-file-list>
<welcome-file>Google_web_toolkit.html</welcome-file>
</welcome-file-list>
</web-app>

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pom.xml
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<module>geotools</module>
<module>testing-modules/groovy-spock</module>
<module>google-cloud</module>
<module>google-web-toolkit</module>
<module>gson</module>
<module>guava</module>
<module>guava-modules/guava-18</module>