Only pop-up build errors notification when the errors are on the runn…

…ing project's classpath (#459)

com.microsoft.java.debug.plugin/src/main/java/com/microsoft/java/debug/plugin/internal/Compile.java

@@ -0,0 +1,145 @@
+/*******************************************************************************
+ * Copyright (c) 2022 Microsoft Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     Microsoft Corporation - initial API and implementation
+ *******************************************************************************/
+
+package com.microsoft.java.debug.plugin.internal;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.logging.Logger;
+
+import org.apache.commons.lang3.StringUtils;
+import org.eclipse.core.resources.IMarker;
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.resources.IWorkspaceRoot;
+import org.eclipse.core.resources.IncrementalProjectBuilder;
+import org.eclipse.core.resources.ResourcesPlugin;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.OperationCanceledException;
+import org.eclipse.jdt.core.IJavaProject;
+import org.eclipse.jdt.core.IType;
+import org.eclipse.jdt.ls.core.internal.BuildWorkspaceStatus;
+import org.eclipse.jdt.ls.core.internal.JavaLanguageServerPlugin;
+import org.eclipse.jdt.ls.core.internal.ProjectUtils;
+import org.eclipse.jdt.ls.core.internal.ResourceUtils;
+import org.eclipse.jdt.ls.core.internal.managers.ProjectsManager;
+
+import com.microsoft.java.debug.core.Configuration;
+
+public class Compile {
+    private static final Logger logger = Logger.getLogger(Configuration.LOGGER_NAME);
+
+    public static BuildWorkspaceStatus compile(CompileParams params, IProgressMonitor monitor) {
+        try {
+            if (monitor.isCanceled()) {
+                return BuildWorkspaceStatus.CANCELLED;
+            }
+
+            long compileAt = System.currentTimeMillis();
+            if (params != null && params.isFullBuild()) {
+                ResourcesPlugin.getWorkspace().build(IncrementalProjectBuilder.CLEAN_BUILD, monitor);
+                ResourcesPlugin.getWorkspace().build(IncrementalProjectBuilder.FULL_BUILD, monitor);
+            } else {
+                ResourcesPlugin.getWorkspace().build(IncrementalProjectBuilder.INCREMENTAL_BUILD, monitor);
+            }
+            logger.info("Time cost for ECJ: " + (System.currentTimeMillis() - compileAt) + "ms");
+
+            IProject mainProject = params == null ? null : ProjectUtils.getProject(params.getProjectName());
+            IResource currentResource = mainProject;
+            if (isUnmanagedFolder(mainProject) && StringUtils.isNotBlank(params.getMainClass())) {
+                IType mainType = ProjectUtils.getJavaProject(mainProject).findType(params.getMainClass());
+                if (mainType != null && mainType.getResource() != null) {
+                    currentResource = mainType.getResource();
+                }
+            }
+
+            List<IMarker> problemMarkers = new ArrayList<>();
+            if (currentResource != null) {
+                List<IMarker> markers = ResourceUtils.getErrorMarkers(currentResource);
+                if (markers != null) {
+                    problemMarkers.addAll(markers);
+                }
+
+                // Check if the referenced projects contain compilation errors.
+                if (currentResource instanceof IProject && ProjectUtils.isJavaProject((IProject) currentResource)) {
+                    IJavaProject currentJavaProject = ProjectUtils.getJavaProject((IProject) currentResource);
+                    IJavaProject[] javaProjects = ProjectUtils.getJavaProjects();
+                    for (IJavaProject otherJavaProject : javaProjects) {
+                        IProject other = otherJavaProject.getProject();
+                        if (!other.equals(getDefaultProject()) && !other.equals((IProject) currentResource)
+                            && currentJavaProject.isOnClasspath(otherJavaProject)) {
+                            markers = ResourceUtils.getErrorMarkers(other);
+                            if (markers != null) {
+                                problemMarkers.addAll(markers);
+                            }
+                        }
+                    }
+                }
+            } else {
+                IJavaProject[] javaProjects = ProjectUtils.getJavaProjects();
+                for (IJavaProject javaProject : javaProjects) {
+                    IProject project = javaProject.getProject();
+                    if (!project.equals(getDefaultProject())) {
+                        List<IMarker> markers = ResourceUtils.getErrorMarkers(project);
+                        if (markers != null) {
+                            problemMarkers.addAll(markers);
+                        }
+                    }
+                }
+            }
+
+            if (problemMarkers.isEmpty()) {
+                return BuildWorkspaceStatus.SUCCEED;
+            }
+
+            return BuildWorkspaceStatus.WITH_ERROR;
+        } catch (CoreException e) {
+            JavaLanguageServerPlugin.logException("Failed to build workspace.", e);
+            return BuildWorkspaceStatus.FAILED;
+        } catch (OperationCanceledException e) {
+            return BuildWorkspaceStatus.CANCELLED;
+        }
+    }
+
+    private static boolean isUnmanagedFolder(IProject project) {
+        return project != null && ProjectUtils.isUnmanagedFolder(project)
+            && ProjectUtils.isJavaProject(project);
+    }
+
+    private static IProject getDefaultProject() {
+        return getWorkspaceRoot().getProject(ProjectsManager.DEFAULT_PROJECT_NAME);
+    }
+
+    private static IWorkspaceRoot getWorkspaceRoot() {
+        return ResourcesPlugin.getWorkspace().getRoot();
+    }
+
+    class CompileParams {
+        String projectName;
+        String mainClass;
+        boolean isFullBuild = false;
+
+        public String getMainClass() {
+            return mainClass;
+        }
+
+        public boolean isFullBuild() {
+            return isFullBuild;
+        }
+
+        public String getProjectName() {
+            return projectName;
+        }
+    }
+}

com.microsoft.java.debug.plugin/src/main/java/com/microsoft/java/debug/plugin/internal/JavaDebugDelegateCommandHandler.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
-* Copyright (c) 2017-2019 Microsoft Corporation and others.
+* Copyright (c) 2017-2022 Microsoft Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
@@ -64,8 +64,12 @@ public Object executeCommand(String commandId, List<Object> arguments, IProgress
                 ResolveMainClassHandler resolveMainClassHandler = new ResolveMainClassHandler();
                 return resolveMainClassHandler.resolveMainClass(arguments);
             case BUILD_WORKSPACE:
-                // TODO
-                break;
+                Compile.CompileParams params = null;
+                if (arguments != null && !arguments.isEmpty()) {
+                    params = JsonUtils.fromJson((String) arguments.get(0), Compile.CompileParams.class);
+                }
+
+                return Compile.compile(params, progress);
             case FETCH_USER_DATA:
                 return UsageDataStore.getInstance().fetchAll();
             case UPDATE_DEBUG_SETTINGS: