Composite Creation Implementation

Added most of the features to create a non functional workspace
composite, including:
- Definition of composite via wizard and working set GUI
- Adding projects to the composite via wizard and properties
- Changing composite properties via properties menu

Import of external projects has yet to be implemented

Signed-off-by: kuzniarz <sebastian.kuzniarz@dieboldnixdorf.com>

org.eclipse.buildship.core/META-INF/MANIFEST.MF

@@ -19,7 +19,8 @@ Require-Bundle: org.eclipse.core.expressions,
  org.gradle.toolingapi;bundle-version="[8.6.0,8.7.0)";visibility:=reexport,
  com.google.guava;bundle-version="33.0.0",
  com.google.gson;bundle-version="[2.7.0,3.0.0)",
- org.eclipse.buildship.compat;visibility:=reexport
+ org.eclipse.buildship.compat;visibility:=reexport,
+ org.eclipse.ui.workbench
 Bundle-ActivationPolicy: lazy
 Import-Package: org.slf4j;version="1.7.2"
 Export-Package: org.eclipse.buildship.core,

org.eclipse.buildship.core/src/main/java/org/eclipse/buildship/core/CompositeProperties.java

@@ -0,0 +1,280 @@
+/*******************************************************************************
+ * Copyright (c) 2019 Gradle Inc.
+ *
+ * This program and the accompanying materials are made
+ * available under the terms of the Eclipse Public License 2.0
+ * which is available at https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ ******************************************************************************/
+package org.eclipse.buildship.core;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Properties;
+
+import com.google.common.base.Preconditions;
+
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.runtime.IAdaptable;
+
+import org.eclipse.buildship.core.internal.configuration.CompositeConfiguration;
+
+public class CompositeProperties {
+
+    private final File compositePreferencesDir;
+
+    private final IAdaptable[] projectList;
+    private final Boolean overwriteWorkspaceSettings;
+    private final GradleDistribution distribution;
+    private final File gradleUserHome;
+    private final File javaHome;
+    private final Boolean buildScansEnabled;
+    private final Boolean offlineMode;
+    private final Boolean autoSync;
+    private final List<String> arguments;
+    private final List<String> jvmArguments;
+    private final Boolean showConsoleView;
+    private final Boolean showExecutionsView;
+    private final Boolean useProjectAsRoot;
+    private final File rootProject;
+
+    private static final String KEY_COMPOSITE_PROJECTS = "composite.projects";
+    private static final String KEY_OVERWRITE_WORKSPACE_SETTINGS = "override.workspace.settings";
+    private static final String KEY_DISTRIBUTION = "connection.gradle.distribution";
+    private static final String KEY_GRADLE_USER_HOME = "gradle.user.home";
+    private static final String KEY_JAVA_HOME = "java.home";
+    private static final String KEY_BUILD_SCANS_ENABLED = "build.scans.enabled";
+    private static final String KEY_OFFLINE_MODE = "offline.mode";
+    private static final String KEY_AUTO_SYNC = "auto.sync";
+    private static final String KEY_ARGUMENTS = "arguments";
+    private static final String KEY_JVM_ARGUMENTS = "jvm.arguments";
+    private static final String KEY_SHOW_CONSOLE_VIEW = "show.console.view";
+    private static final String KEY_SHOW_EXECUTION_VIEW = "show.executions.view";
+    private static final String KEY_USE_PROJECT_AS_ROOT = "project.as.root";
+    private static final String KEY_ROOT_PROJECT = "root.project";
+
+    private CompositeProperties(CompositePropertiesBuilder builder) {
+        this.compositePreferencesDir = Preconditions.checkNotNull(builder.compositeDirectory);
+        this.projectList = builder.projectList;
+        this.overwriteWorkspaceSettings = builder.overrideWorkspaceConfiguration;
+        this.distribution = builder.gradleDistribution == null ? GradleDistribution.fromBuild() : builder.gradleDistribution;
+        this.gradleUserHome = builder.gradleUserHome == null ? null: builder.gradleUserHome;
+        this.javaHome = builder.javaHome == null ? null : builder.javaHome;
+        this.buildScansEnabled = builder.buildScansEnabled;
+        this.offlineMode = builder.offlineMode;
+        this.autoSync = builder.autoSync;
+        this.arguments = builder.arguments == null ? Collections.emptyList() : builder.arguments;
+        this.jvmArguments = builder.jvmArguments == null ? Collections.emptyList() : builder.jvmArguments;
+        this.showConsoleView = builder.showConsoleView;
+        this.showExecutionsView = builder.showExecutionsView;
+        this.useProjectAsRoot = builder.projectAsCompositeRoot;
+        this.rootProject = builder.rootProject == null ? null: builder.rootProject;
+
+
+    }
+
+    public static CompositePropertiesReader getCompositeReaderForFile(File compositeProperties) {
+        return new CompositePropertiesReader(compositeProperties);
+    }
+
+    public static CompositePropertiesBuilder forRootProjectDirectory(File rootProjectDirectory) {
+        return new CompositePropertiesBuilder(rootProjectDirectory);
+    }
+
+    public static CompositePropertiesBuilder forCompositeConfiguration(CompositeConfiguration compositeConf) {
+        return new CompositePropertiesBuilder(compositeConf);
+    }
+
+    public Properties toProperties() {
+        Properties prop = new Properties();
+
+        prop.put(KEY_COMPOSITE_PROJECTS, getProjectString(this.projectList));
+        prop.put(KEY_OVERWRITE_WORKSPACE_SETTINGS, this.overwriteWorkspaceSettings.toString());
+        prop.put(KEY_DISTRIBUTION, this.distribution == null ? GradleDistribution.fromBuild() : this.distribution.toString());
+        prop.put(KEY_GRADLE_USER_HOME, this.gradleUserHome == null ? "" : this.gradleUserHome.getAbsolutePath());
+        prop.put(KEY_JAVA_HOME, this.javaHome == null ? "" : this.javaHome.getAbsolutePath());
+        prop.put(KEY_BUILD_SCANS_ENABLED, this.buildScansEnabled.toString());
+        prop.put(KEY_OFFLINE_MODE, this.offlineMode.toString());
+        prop.put(KEY_AUTO_SYNC, this.autoSync.toString());
+        prop.put(KEY_ARGUMENTS, removeBrackets(this.arguments.toString()));
+        prop.put(KEY_JVM_ARGUMENTS, removeBrackets(this.jvmArguments.toString()));
+        prop.put(KEY_SHOW_CONSOLE_VIEW, this.showConsoleView.toString());
+        prop.put(KEY_SHOW_EXECUTION_VIEW, this.showExecutionsView.toString());
+        prop.put(KEY_USE_PROJECT_AS_ROOT, this.useProjectAsRoot.toString());
+        prop.put(KEY_ROOT_PROJECT, this.rootProject == null ? "" : this.rootProject.toString());
+        return prop;
+    }
+
+    private String getProjectString(IAdaptable[] projects) {
+        StringBuilder sb = new StringBuilder();
+        for (Iterator<IAdaptable> it = Arrays.asList(projects).iterator(); it.hasNext();) {
+            IAdaptable project = it.next();
+            if (project instanceof IProject) {
+                if (it.hasNext()) {
+                    sb.append(((IProject) project).getName() + ", ");
+                } else {
+                    sb.append(((IProject) project).getName());
+                }
+            } else if (project instanceof IResource) {
+                IResource externalProject = (IResource) project;
+                System.out.println(externalProject.getName());
+            }
+        }
+        return sb.toString();
+    }
+
+    private String removeBrackets(String arguments) {
+        return arguments.replace("[", "").replace("]", "").replace(",", "");
+    }
+
+    public static final class CompositePropertiesBuilder {
+
+        private final File compositeDirectory;
+        public IAdaptable[] projectList;
+        private boolean overrideWorkspaceConfiguration = false;
+        private GradleDistribution gradleDistribution;
+        private File gradleUserHome = null;
+        private File javaHome = null;
+        private boolean buildScansEnabled = false;
+        private boolean offlineMode = false;
+        private boolean autoSync = false;
+        private List<String> arguments = new ArrayList<>();
+        private List<String> jvmArguments = new ArrayList<>();
+        private boolean showConsoleView = true;
+        private boolean showExecutionsView = true;
+        private boolean projectAsCompositeRoot = false;
+        private File rootProject = null;
+
+        private CompositePropertiesBuilder(File compositeDirectory) {
+            this.compositeDirectory = compositeDirectory;
+        }
+
+        public CompositePropertiesBuilder(CompositeConfiguration compositeConf) {
+            this.compositeDirectory = compositeConf.getCompositeDir();
+            this.projectList = compositeConf.getProjectList();
+            this.overrideWorkspaceConfiguration = compositeConf.getBuildConfiguration().isOverrideWorkspaceSettings();
+            this.gradleDistribution = compositeConf.getBuildConfiguration().getGradleDistribution();
+            this.gradleUserHome = compositeConf.getBuildConfiguration().getGradleUserHome();
+            this.javaHome = compositeConf.getBuildConfiguration().getJavaHome();
+            this.buildScansEnabled = compositeConf.getBuildConfiguration().isBuildScansEnabled();
+            this.offlineMode = compositeConf.getBuildConfiguration().isOfflineMode();
+            this.autoSync = compositeConf.getBuildConfiguration().isAutoSync();
+            this.arguments = compositeConf.getBuildConfiguration().getArguments();
+            this.jvmArguments = compositeConf.getBuildConfiguration().getJvmArguments();
+            this.showConsoleView = compositeConf.getBuildConfiguration().isShowConsoleView();
+            this.showExecutionsView = compositeConf.getBuildConfiguration().isShowExecutionsView();
+            this.projectAsCompositeRoot = compositeConf.projectAsCompositeRoot();
+            this.rootProject = compositeConf.getRootProject();
+
+        }
+
+        public CompositePropertiesBuilder projectList(IAdaptable[] projectList) {
+            this.projectList = projectList;
+            return this;
+        }
+
+        public CompositePropertiesBuilder overrideWorkspaceConfiguration(boolean overrideWorkspaceConfiguration) {
+            this.overrideWorkspaceConfiguration = overrideWorkspaceConfiguration;
+            return this;
+        }
+
+        public CompositePropertiesBuilder gradleDistribution(GradleDistribution gradleDistribution) {
+            this.gradleDistribution = gradleDistribution;
+            return this;
+        }
+
+        public CompositePropertiesBuilder gradleUserHome(File gradleUserHome) {
+            this.gradleUserHome = gradleUserHome;
+            return this;
+        }
+
+        public CompositePropertiesBuilder javaHome(File javaHome) {
+            this.javaHome = javaHome;
+            return this;
+        }
+
+        public CompositePropertiesBuilder buildScansEnabled(boolean buildScansEnabled) {
+            this.buildScansEnabled = buildScansEnabled;
+            return this;
+        }
+
+        public CompositePropertiesBuilder offlineMode(boolean offlineMode) {
+            this.offlineMode = offlineMode;
+            return this;
+        }
+
+        public CompositePropertiesBuilder autoSync(boolean autoSync) {
+            this.autoSync = autoSync;
+            return this;
+        }
+
+        public CompositePropertiesBuilder arguments(List<String> arguments) {
+            this.arguments = arguments;
+            return this;
+        }
+
+        public CompositePropertiesBuilder jvmArguments(List<String> jvmArguments) {
+            this.jvmArguments = jvmArguments;
+            return this;
+        }
+
+        public CompositePropertiesBuilder showConsoleView(boolean showConsoleView) {
+            this.showConsoleView = showConsoleView;
+            return this;
+        }
+
+        public CompositePropertiesBuilder showExecutionsView(boolean showExecutionsView) {
+            this.showExecutionsView = showExecutionsView;
+            return this;
+        }
+
+        public CompositePropertiesBuilder projectAsCompositeRoot(boolean projectAsCompositeRoot) {
+            this.projectAsCompositeRoot = projectAsCompositeRoot;
+            return this;
+        }
+
+        public CompositePropertiesBuilder rootProject(File rootProject) {
+            this.rootProject = rootProject;
+            return this;
+        }
+
+        public CompositeProperties build() {
+            return new CompositeProperties(this);
+        }
+    }
+
+    public static final class CompositePropertiesReader {
+        private final File compositeDirectory;
+        private Properties compositeProperties = new Properties();
+
+        private CompositePropertiesReader(File compositeDirectory) {
+            this.compositeDirectory = compositeDirectory;
+              try {
+                FileInputStream input= new FileInputStream(this.compositeDirectory);
+                this.compositeProperties = new Properties();
+                this.compositeProperties.load(input);
+            } catch (IOException e) {
+               e.printStackTrace();
+            }
+        }
+
+        public boolean getProjectAsCompositeRoot() {
+            return Boolean.valueOf(this.compositeProperties.get(KEY_USE_PROJECT_AS_ROOT).toString());
+        }
+
+        public File getRootProject() {
+            return new File(this.compositeProperties.get(KEY_ROOT_PROJECT).toString());
+        }
+
+        //If needed implement reader for other properties
+
+    }
+}

org.eclipse.buildship.core/src/main/java/org/eclipse/buildship/core/internal/configuration/BuildConfigurationPersistence.java

@@ -58,7 +58,13 @@ public BuildConfigurationProperties readBuildConfiguratonProperties(File project
         return readPreferences(preferences, projectDir);
     }
 
-    public void saveBuildConfiguration(IProject project, BuildConfigurationProperties properties) {
+    public DefaultBuildConfigurationProperties readCompositeBuildProperties(File compositeDir) {
+        Preconditions.checkNotNull(compositeDir);
+        PreferenceStore preferences = PreferenceStore.forPreferenceFile(compositeDir);
+        return readPreferences(preferences, compositeDir);
+    }
+
+    public void saveBuildConfiguration(IProject project, DefaultBuildConfigurationProperties properties) {
         Preconditions.checkNotNull(project);
         Preconditions.checkNotNull(properties);
         PreferenceStore preferences = PreferenceStore.forProjectScope(project, PREF_NODE);

org.eclipse.buildship.core/src/main/java/org/eclipse/buildship/core/internal/configuration/CompositeConfiguration.java

@@ -0,0 +1,33 @@
+/*******************************************************************************
+ * Copyright (c) 2019 Gradle Inc.
+ *
+ * This program and the accompanying materials are made
+ * available under the terms of the Eclipse Public License 2.0
+ * which is available at https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ ******************************************************************************/
+
+package org.eclipse.buildship.core.internal.configuration;
+
+import java.io.File;
+
+import org.eclipse.core.runtime.IAdaptable;
+
+/**
+ * Configuration for a workspace composite in a Gradle build.
+ *
+ * @author Sebastian Kuzniarz
+ */
+public interface CompositeConfiguration {
+
+    File getCompositeDir();
+
+    IAdaptable[] getProjectList();
+
+    BuildConfiguration getBuildConfiguration();
+
+    Boolean projectAsCompositeRoot();
+
+    File getRootProject();
+}

org.eclipse.buildship.core/src/main/java/org/eclipse/buildship/core/internal/configuration/ConfigurationManager.java

@@ -14,6 +14,7 @@
 
 import org.eclipse.core.resources.IProject;
 import org.eclipse.debug.core.ILaunchConfiguration;
+import org.eclipse.ui.IWorkingSet;
 
 import org.eclipse.buildship.core.GradleDistribution;
 
@@ -49,7 +50,11 @@ BuildConfiguration createBuildConfiguration(File rootProjectDirectory, boolean o
 
     void deleteProjectConfiguration(IProject project);
 
-    RunConfiguration loadRunConfiguration(ILaunchConfiguration configuration);
+    CompositeConfiguration loadCompositeConfiguration(IWorkingSet workingSet);
+
+    void saveCompositeConfiguration(CompositeConfiguration compConf);
+
+    RunConfiguration loadRunConfiguration(ILaunchConfiguration launchConfiguration);
 
     TestRunConfiguration loadTestRunConfiguration(ILaunchConfiguration configuration);