Added Template based Project Wizard (gwt-plugins#499)

* Added Template based Project Wizard

- Create projects based on templates.
- removed some unused code
- added a multi project template without example code
- added a multi project GWT project template with the example code from
the existing GWT sample project, but splitted into 3 projects.

* Updated eclipse base to 2023-09

* Fixed things from review

- javaProjects as List instead of Array
- Copyright information updated / inserted
- Fixed multithreading bug
- removed xsiframe from gwt.xml file
- replaced mkdirs() with Files.createDirectories()
- Use UTF-8 instead of defaultCharset
-Use Files.writeString() instead of BufferedWriter

* Unified the File renaming

- all renaming of files is done  by using the same method.
- allow filenames to contain the placeholder _PROJECTNAME_

plugins/com.gwtplugins.gdt.eclipse.core/src/com/google/gdt/eclipse/core/projects/IWebAppProjectCreator.java

@@ -25,10 +25,10 @@
 
 import java.io.FileNotFoundException;
 import java.io.IOException;
-import java.io.InputStream;
 import java.io.UnsupportedEncodingException;
 import java.net.MalformedURLException;
 import java.net.URI;
+import java.util.List;
 
 /**
  * Creates web app projects populated with files relevant to the selected natures.
@@ -56,10 +56,6 @@ public interface Participant {
 
   void addContainerPath(IPath containerPath);
 
-  void addFile(IPath path, InputStream inputStream);
-
-  void addFile(IPath path, String content) throws UnsupportedEncodingException;
-
   void addNature(String natureId);
 
   /**
@@ -86,10 +82,6 @@ void create(IProgressMonitor monitor) throws CoreException, MalformedURLExceptio
 
   void setProjectName(String projectName);
 
-  void setTemplates(String... templates);
-
-  void setTemplateSources(String... sources);
-
   /**
    * Build an Ant project.
    *
@@ -105,25 +97,24 @@ void create(IProgressMonitor monitor) throws CoreException, MalformedURLExceptio
   void setBuildMaven(boolean buildMaven);
 
   /**
-   * Returns the created Java project. This is available half way through the creation process.
-   *
-   * @return the java projeect.
+   * Returns the created Java projects. This is available half way through the creation process.
+   * @return the java project.
    */
-  IJavaProject getCreatedJavaProject();
+  List<IJavaProject> getCreatedJavaProjects();
 
   /**
    * Returns build a Maven Project.
    *
    * @return Maven selected
    */
-  boolean getBuildMaven();
+  boolean isBuildMaven();
 
   /**
    * Returns build an ant project.
    *
    * @return Ant selected
    */
-  boolean getBuiltAnt();
+  boolean isBuiltAnt();
 
   /**
    * Returns the Creation progress monitor.

plugins/com.gwtplugins.gdt.eclipse.core/src/com/google/gdt/eclipse/core/resources/ProjectResources.java

@@ -26,19 +26,19 @@
 import org.eclipse.jface.text.Document;
 import org.eclipse.text.edits.TextEdit;
 
-import java.io.BufferedReader;
 import java.io.BufferedWriter;
 import java.io.File;
-import java.io.FileReader;
 import java.io.FileWriter;
 import java.io.FilenameFilter;
 import java.io.IOException;
+import java.nio.charset.Charset;
+import java.nio.file.Files;
 import java.util.List;
 import java.util.Vector;
 
 /**
  * Generates source for files needed by web application projects.
- * 
+ *
  * TODO: Convert these use to use templates.
  */
 @SuppressWarnings("restriction")
@@ -128,13 +128,13 @@ public static List<File> findFilesInDir(File directory, FilenameFilter filter) {
   /**
    * Given a java.io.File containing Java source, call the Eclipse auto-format
    * code on that source and write it back to disk.
-   * 
+   *
    * @param file
    * @throws CoreException
    */
   public static void reformatJavaSource(File file) throws CoreException {
     try {
-      String generatedSource = textFromFile(file);
+      String generatedSource = Files.readString(file.toPath(), Charset.defaultCharset());
       String reformattedSource = reformatJavaSourceAsString(generatedSource);
       if (!reformattedSource.equals(generatedSource)) {
         writeStringToFile(reformattedSource, file);
@@ -166,32 +166,6 @@ public static String reformatJavaSourceAsString(String source) {
     return source;
   }
 
-  /*
-   * TODO: These next two methods might be useful somewhere else in the
-   * future, but right now, this is the only place where we need to do I/O on
-   * java.io.Files instead of Eclipse resources.
-   */
-  private static String textFromFile(File file) throws IOException {
-    char bytes[] = new char[1024];
-    int nread;
-    StringBuilder builder = new StringBuilder();
-
-    BufferedReader reader = null;
-    try {
-      reader = new BufferedReader(new FileReader(file));
-      while ((nread = reader.read(bytes, 0, 1024)) != -1) {
-        char toAppend[] = new char[nread];
-        System.arraycopy(bytes, 0, toAppend, 0, nread);
-        builder.append(toAppend);
-      }
-    } finally {
-      if (reader != null) {
-        reader.close();
-      }
-    }
-    return builder.toString();
-  }
-
   private static void writeStringToFile(String string, File file)
       throws IOException {
     BufferedWriter bw = null;

plugins/com.gwtplugins.gdt.eclipse.maven/src/com/google/gdt/eclipse/maven/projects/MavenEnablingWebAppCreatorParicipant.java

@@ -17,19 +17,21 @@
 import org.eclipse.m2e.core.MavenPlugin;
 import org.eclipse.m2e.core.project.IProjectConfigurationManager;
 
+import java.util.List;
+
 public class MavenEnablingWebAppCreatorParicipant implements IWebAppProjectCreator.Participant {
 
-  private IJavaProject javaProject;
+  private List<IJavaProject> javaProjects;
 
   @Override
   public void updateWebAppProjectCreator(IWebAppProjectCreator webAppProjectCreator) {
-    boolean buildMaven = webAppProjectCreator.getBuildMaven();
+    boolean buildMaven = webAppProjectCreator.isBuildMaven();
     if (!buildMaven) {
       return;
     }
 
-    javaProject = webAppProjectCreator.getCreatedJavaProject();
-    if (javaProject == null) {
+    javaProjects = webAppProjectCreator.getCreatedJavaProjects();
+    if (javaProjects == null) {
       return;
     }
 
@@ -42,7 +44,10 @@ private void runJob() {
       protected IStatus run(IProgressMonitor monitor) {
         // Turn on the Maven nature
         try {
-          NatureUtils.addNature(javaProject.getProject(), MavenUtils.MAVEN2_NATURE_ID);
+          for(int i=0;i<javaProjects.size();i++)
+          {
+            NatureUtils.addNature(javaProjects.get(i).getProject(), MavenUtils.MAVEN2_NATURE_ID);
+          }
         } catch (CoreException e1) {
           e1.printStackTrace();
           return Status.CANCEL_STATUS;
@@ -53,7 +58,10 @@ protected IStatus run(IProgressMonitor monitor) {
         // Maven update project will add the Maven dependencies to the classpath
         IProjectConfigurationManager projectConfig = MavenPlugin.getProjectConfigurationManager();
         try {
-          projectConfig.updateProjectConfiguration(javaProject.getProject(), monitor);
+          for(int i=0;i<javaProjects.size();i++)
+          {
+            projectConfig.updateProjectConfiguration(javaProjects.get(i).getProject(), monitor);
+          }
         } catch (CoreException e) {
           // TODO(${user}): Auto-generated catch block
           e.printStackTrace();

plugins/com.gwtplugins.gdt.eclipse.suite/.settings/org.eclipse.core.resources.prefs

@@ -1,2 +1,5 @@
 eclipse.preferences.version=1
+encoding//project_templates/client_server_shared/client/.settings/org.eclipse.jdt.core.prefs=UTF-8
+encoding//project_templates/client_server_shared/server/.settings/org.eclipse.jdt.core.prefs=UTF-8
+encoding//project_templates/client_server_shared/shared/.settings/org.eclipse.jdt.core.prefs=UTF-8
 encoding/<project>=UTF-8

plugins/com.gwtplugins.gdt.eclipse.suite/META-INF/MANIFEST.MF

@@ -40,5 +40,7 @@ Require-Bundle:
  com.gwtplugins.gdt.eclipse.platform,
  org.eclipse.equinox.common,
  system.bundle,
- org.eclipse.core.runtime
+ org.eclipse.core.runtime,
+ org.jdom2,
+ org.apache.commons.commons-io
 Import-Package: org.eclipse.core.runtime.preferences

plugins/com.gwtplugins.gdt.eclipse.suite/build.properties

@@ -5,6 +5,7 @@ bin.includes = META-INF/,\
                plugin.xml,\
                icons/,\
                about.ini,\
-               plugin.properties
+               plugin.properties,\
+               project_templates/
 javacSource=11
 javacTarget=11

plugins/com.gwtplugins.gdt.eclipse.suite/plugin.xml

@@ -200,6 +200,15 @@
             id="com.gwtplugins.gdt.eclipse.suite.newWizards"
             name="%gwt.label.new">
       </category>
+      <wizard
+            category="com.gwtplugins.gdt.eclipse.suite.newWizards"
+            class="com.google.gdt.eclipse.suite.wizards.NewWebAppTemplateProjectWizard"
+            icon="icons/gdt-new-project_16x16.png"
+            id="com.gwtplugins.gdt.eclipse.suite.wizards.newMultiProjectWizard"
+            name="GWT Template based Project"
+            preferredPerspectives="org.eclipse.jdt.ui.JavaPerspective"
+            project="true">
+      </wizard>      
       <wizard
             category="com.gwtplugins.gdt.eclipse.suite.newWizards"
             class="com.google.gdt.eclipse.suite.wizards.NewWebAppProjectWizard"
@@ -223,24 +232,36 @@
          point="org.eclipse.ui.perspectiveExtensions">
       <perspectiveExtension
             targetID="org.eclipse.jdt.ui.JavaPerspective">
+         <newWizardShortcut
+               id="com.gwtplugins.gdt.eclipse.suite.wizards.newMultiProjectWizard">
+         </newWizardShortcut>
          <newWizardShortcut
                id="com.gwtplugins.gdt.eclipse.suite.wizards.newProjectWizard">
          </newWizardShortcut>
       </perspectiveExtension>
       <perspectiveExtension
             targetID="org.eclipse.jdt.ui.JavaBrowsingPerspective">
+         <newWizardShortcut
+               id="com.gwtplugins.gdt.eclipse.suite.wizards.newMultiProjectWizard">
+         </newWizardShortcut>
          <newWizardShortcut
                id="com.gwtplugins.gdt.eclipse.suite.wizards.newProjectWizard">
          </newWizardShortcut>
       </perspectiveExtension>
       <perspectiveExtension
             targetID="org.eclipse.jdt.ui.JavaHierarchyPerspective">
+         <newWizardShortcut
+               id="com.gwtplugins.gdt.eclipse.suite.wizards.newMultiProjectWizard">
+         </newWizardShortcut>
          <newWizardShortcut
                id="com.gwtplugins.gdt.eclipse.suite.wizards.newProjectWizard">
          </newWizardShortcut>
       </perspectiveExtension>
       <perspectiveExtension
             targetID="org.eclipse.jst.j2ee.J2EEPerspective">
+         <newWizardShortcut
+               id="com.gwtplugins.gdt.eclipse.suite.wizards.newMultiProjectWizard">
+         </newWizardShortcut>
          <newWizardShortcut
                id="com.gwtplugins.gdt.eclipse.suite.wizards.newProjectWizard">
          </newWizardShortcut>

plugins/com.gwtplugins.gdt.eclipse.suite/project_templates/client_server_shared/client/src/_PACKAGENAME_/ui.gwt.xml

@@ -0,0 +1,28 @@
+<?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 2.10.0//EN"
+  "http://gwtproject.org/doctype/2.10.0/gwt-module.dtd">
+<module rename-to='example'>
+  <!-- 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                                      -->
+  <inherits name='${PACKAGENAME}.shared'/>
+
+  <!-- Specify the app entry point class.                         -->
+  <entry-point class='${PACKAGENAME}.ui.Main'/>
+
+  <!-- Specify the paths for translatable code                    -->
+  <source path='ui'/>
+</module>