[examples] The user's JDK version is used into the pom files of the e…

…xamples.

close #1019

Signed-off-by: Stéphane Galland <galland@arakhne.org>

contribs/io.sarl.examples/io.sarl.examples.plugin/META-INF/MANIFEST.MF

@@ -19,7 +19,8 @@ Require-Bundle: io.sarl.eclipse;bundle-version="0.12.0",
  org.eclipse.core.resources;bundle-version="3.13.700",
  org.eclipse.jdt.launching;bundle-version="3.17.100",
  javax.inject;bundle-version="1.0.0",
- com.google.inject;bundle-version="4.2.3"
+ com.google.inject;bundle-version="4.2.3",
+ org.eclipse.jdt.core;bundle-version="3.22.0"
 Export-Package: io.sarl.examples,
  io.sarl.examples.wizard
 Import-Package: io.sarl.m2e.wizards.importproject

contribs/io.sarl.examples/io.sarl.examples.plugin/projects/io-sarl-demos-boids-awt/pom.xml

@@ -10,7 +10,7 @@
 	<properties>
 		<sarl.version>@SARL_VERSION@</sarl.version>
 		<afc.version>@AFC_VERSION@</afc.version>
-		<compiler.level>@JAVA_VERSION@</compiler.level>
+		<compiler.level>@USER_JAVA_VERSION@</compiler.level>
 		<project.build.sourceEncoding>@FILE_ENCODING@</project.build.sourceEncoding>
 	</properties>
 

contribs/io.sarl.examples/io.sarl.examples.plugin/projects/io-sarl-demos-fireworks/pom.xml

@@ -8,7 +8,7 @@
 
 	<properties>
 		<sarl.version>@SARL_VERSION@</sarl.version>
-		<target.jdk.version>@JAVA_VERSION@</target.jdk.version>
+		<target.jdk.version>@USER_JAVA_VERSION@</target.jdk.version>
 		<project.build.sourceEncoding>@FILE_ENCODING@</project.build.sourceEncoding>
 	</properties>
 

contribs/io.sarl.examples/io.sarl.examples.plugin/projects/io-sarl-demos-gameoflife/pom.xml

@@ -9,7 +9,7 @@
 	<properties>
 		<sarl.version>@SARL_VERSION@</sarl.version>
 		<afc.version>@AFC_VERSION@</afc.version>
-		<target.jdk.version>@JAVA_VERSION@</target.jdk.version>
+		<target.jdk.version>@USER_JAVA_VERSION@</target.jdk.version>
 		<project.build.sourceEncoding>@FILE_ENCODING@</project.build.sourceEncoding>
 	</properties>
 

contribs/io.sarl.examples/io.sarl.examples.plugin/projects/io-sarl-demos-sierpinskifractals/pom.xml

@@ -8,7 +8,7 @@
 
 	<properties>
 		<sarl.version>@SARL_VERSION@</sarl.version>
-		<target.jdk.version>@JAVA_VERSION@</target.jdk.version>
+		<target.jdk.version>@USER_JAVA_VERSION@</target.jdk.version>
 		<project.build.sourceEncoding>@FILE_ENCODING@</project.build.sourceEncoding>
 	</properties>
 

contribs/io.sarl.examples/io.sarl.examples.plugin/projects/io-sarl-templates-javafx/pom.xml

@@ -8,7 +8,7 @@
 
 	<properties>
 		<sarl.version>@SARL_VERSION@</sarl.version>
-		<target.jdk.version>@JAVA_VERSION@</target.jdk.version>
+		<target.jdk.version>@USER_JAVA_VERSION@</target.jdk.version>
 		<project.build.sourceEncoding>@FILE_ENCODING@</project.build.sourceEncoding>
 	</properties>
 

contribs/io.sarl.examples/io.sarl.examples.plugin/src/io/sarl/examples/wizard/SarlExampleInstallerWizard.java

@@ -25,10 +25,14 @@
 import static io.sarl.examples.wizard.SarlExampleLaunchConfiguration.readLaunchConfigurationFromXml;
 import static io.sarl.examples.wizard.SarlExampleLaunchConfiguration.readXmlContent;
 
+import java.io.BufferedReader;
 import java.io.File;
+import java.io.IOException;
+import java.io.InputStreamReader;
 import java.lang.ref.WeakReference;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.regex.Pattern;
 import javax.inject.Inject;
 
 import org.eclipse.core.resources.IFile;
@@ -38,10 +42,14 @@
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.NullProgressMonitor;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.core.runtime.SubMonitor;
 import org.eclipse.debug.internal.ui.SWTFactory;
 import org.eclipse.emf.common.ui.wizard.ExampleInstallerWizard;
+import org.eclipse.jdt.launching.AbstractVMInstall;
+import org.eclipse.jdt.launching.IVMInstall;
+import org.eclipse.jdt.launching.JavaRuntime;
 import org.eclipse.jface.wizard.WizardPage;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.layout.GridLayout;
@@ -50,13 +58,17 @@
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.intro.IIntroManager;
 import org.eclipse.ui.intro.IIntroPart;
+import org.eclipse.xtext.util.RuntimeIOException;
+import org.eclipse.xtext.util.StringInputStream;
+import org.osgi.framework.Version;
 import org.w3c.dom.Document;
 
 import io.sarl.eclipse.launching.config.ILaunchConfigurationConfigurator;
 import io.sarl.eclipse.launching.shortcuts.SarlStandardClasspathProvider;
 import io.sarl.eclipse.natures.SARLProjectConfigurator;
 import io.sarl.examples.SARLExamplePlugin;
 import io.sarl.lang.SARLConfig;
+import io.sarl.lang.SARLVersion;
 import io.sarl.m2e.wizards.importproject.MavenImportUtils;
 
 /** Wizard for importing SARL samples.
@@ -150,6 +162,18 @@ protected void postProjectInstallation(ProjectDescriptor projectDescriptor, IPro
 		final IProject project = projectDescriptor.getProject();
 
 		final IFile pomFile = project.getFile(Path.fromOSString("pom.xml")); //$NON-NLS-1$
+		final boolean hasPomFile = pomFile.exists();
+		if (hasPomFile) {
+			// Search for specific keywords into the pom file, and replace them by the user configuration.
+			String compliance = SARLVersion.MINIMAL_JDK_VERSION_FOR_SARL_COMPILATION_ENVIRONMENT;
+			final IVMInstall vmInstall = JavaRuntime.getDefaultVMInstall();
+			if (vmInstall instanceof AbstractVMInstall) {
+				final AbstractVMInstall jvmInstall = (AbstractVMInstall) vmInstall;
+				final Version vers = Version.parseVersion(jvmInstall.getJavaVersion());
+				compliance = vers.getMajor() + "." + vers.getMinor();
+			}
+			updatePomContent(pomFile, compliance);
+		}
 		if (this.configurationPage.isMavenNatureEnabled() && pomFile.exists()) {
 			// The project should be a Maven project.
 			final IPath descriptionFilename = project.getFile(new Path(IProjectDescription.DESCRIPTION_FILE_NAME)).getLocation();
@@ -216,6 +240,35 @@ protected void postProjectInstallation(ProjectDescriptor projectDescriptor, IPro
 		mon.done();
 	}
 
+	private void updatePomContent(IFile pomFile, String jdkCompliance) {
+		// Read the pom
+		final StringBuilder content = new StringBuilder();
+		try (BufferedReader reader = new BufferedReader(new InputStreamReader(pomFile.getContents()))) {
+			String line = reader.readLine();
+			while (line != null) {
+				line = line.replaceAll(Pattern.quote("@USER_JAVA_VERSION@"), jdkCompliance); //$NON-NLS-1$
+				content.append(line).append("\n"); //$NON-NLS-1$
+				line = reader.readLine();
+			}
+		} catch (Exception exception) {
+			throw new RuntimeIOException(exception);
+		}
+		// Delete the pom
+		try {
+			pomFile.delete(true, false, new NullProgressMonitor());
+		} catch (CoreException exception) {
+			throw new RuntimeException(exception);
+		}
+		// Write the pom
+		try (StringInputStream is = new StringInputStream(content.toString())) {
+			pomFile.create(is, true, new NullProgressMonitor());
+		} catch (CoreException exception) {
+			throw new RuntimeException(exception);
+		} catch (IOException exception) {
+			throw new RuntimeIOException(exception);
+		}
+	}
+
 	/** Replies the configurations to launch.
 	 * These configurations are inside an xml file with the name {@link #LAUNCH_PROPERTY_FILE}.
 	 *

contribs/io.sarl.examples/io.sarl.examples.tests/pom.xml

@@ -65,6 +65,10 @@
 									<token>(MAVEN_COMMAND *= *")([^"]+)(";)</token>
 									<value>$1${mvn.command}$3</value>
 								</replacement>
+								<replacement>
+									<token>(CURRENT_JAVA_VERSION *= *")([^"]+)(";)</token>
+									<value>$1${sarl-dsl.min.jdk.version}$3</value>
+								</replacement>
 								<replacement>
 									<token>(DEFAULT_JAVAFX_PATH *= *")([^"]+)(";)</token>
 									<value>$1${openjfx.fxml.linux.path}$3</value>

contribs/io.sarl.examples/io.sarl.examples.tests/src/test/java/io/sarl/examples/tests/ExamplesTest.java

@@ -35,7 +35,7 @@
 import static io.sarl.examples.tests.ExamplesTestUtils.readFileToOpenFromXml;
 import static io.sarl.examples.tests.ExamplesTestUtils.readWizardClassesFromXml;
 import static io.sarl.examples.tests.ExamplesTestUtils.readXmlNode;
-import static io.sarl.examples.tests.ExamplesTestUtils.unpackFiles;
+import static io.sarl.examples.tests.ExamplesTestUtils.*;
 import static io.sarl.examples.wizard.SarlExampleLaunchConfiguration.LAUNCH_PROPERTY_FILE;
 import static io.sarl.examples.wizard.SarlExampleLaunchConfiguration.readLaunchConfigurationFromXml;
 import static io.sarl.examples.wizard.SarlExampleLaunchConfiguration.readXmlAttribute;
@@ -90,6 +90,7 @@ private static List<File> installFiles(ExampleDescription example, File projectR
 		} else {
 			installedFiles = unpackFiles(projectRoot, example.archive);
 		}
+		preparePomFileForTest(projectRoot);
 		return installedFiles;
 	}
 

contribs/io.sarl.examples/io.sarl.examples.tests/src/test/java/io/sarl/examples/tests/ExamplesTestUtils.java

@@ -27,6 +27,9 @@
 
 import java.io.BufferedReader;
 import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
 import java.io.InputStreamReader;
 import java.net.URL;
 import java.util.ArrayList;
@@ -43,12 +46,14 @@
 import java.util.TreeSet;
 import java.util.logging.Level;
 import java.util.logging.Logger;
+import java.util.regex.Pattern;
 import java.util.stream.Stream;
 
 import com.google.inject.Injector;
 import org.arakhne.afc.vmutil.ClasspathUtil;
 import org.arakhne.afc.vmutil.FileSystem;
 import org.eclipse.xtext.diagnostics.Severity;
+import org.eclipse.xtext.util.RuntimeIOException;
 import org.eclipse.xtext.util.Strings;
 import org.eclipse.xtext.xbase.lib.Pair;
 import org.eclipse.xtext.xbase.validation.IssueCodes;
@@ -96,6 +101,10 @@ private ExamplesTestUtils() {
 	 */
 	public static final String MAVEN_COMMAND = "mvn"; //$NON-NLS-1$
 
+	/** Current Java version.
+	 */
+	public static final String CURRENT_JAVA_VERSION = "1.8"; //$NON-NLS-1$
+
 	// TODO Remove this definition when moving to Java 9 or higher (because JavaFX is mavenized)
 	public static final String DEFAULT_JAVAFX_PATH = "/home/sgalland/git/sarl.dsl/contribs/io.sarl.examples/io.sarl.examples.tests/../../../build-tools/libs/jfxrt.jar"; //$NON-NLS-1$
 
@@ -289,6 +298,35 @@ public static void assertFile(File file) {
 		}
 	}
 
+	/** Prepare the pom file for a test.
+	 *
+	 * @param root the root directory where the pom file is located.
+	 * @since 0.12
+	 */
+	public static void preparePomFileForTest(File root) {
+		final File pomFile = new File(root, "pom.xml"); //$NON-NLS-1$
+		if (pomFile.exists() && pomFile.canWrite()) {
+			// Read the pom
+			final StringBuilder content = new StringBuilder();
+			try (BufferedReader reader = new BufferedReader(new FileReader(pomFile))) {
+				String line = reader.readLine();
+				while (line != null) {
+					line = line.replaceAll(Pattern.quote("@USER_JAVA_VERSION@"), CURRENT_JAVA_VERSION); //$NON-NLS-1$
+					content.append(line).append("\n"); //$NON-NLS-1$
+					line = reader.readLine();
+				}
+			} catch (Exception exception) {
+				throw new RuntimeIOException(exception);
+			}
+			// Write the pom
+			try (FileWriter os = new FileWriter(pomFile)) {
+				os.write(content.toString());
+			} catch (IOException exception) {
+				throw new RuntimeIOException(exception);
+			}
+		}
+	}
+
 	/** Compile the given project with the standard maven tool.
 	 *
 	 * @param compiler the SARL compiler to use.