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154
....jdt.launching/launching/org/eclipse/jdt/internal/launching/DetectVMInstallationsJob.java
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| @@ -0,0 +1,154 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2023 Red Hat, Inc. and others. | ||
| * | ||
| * 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 | ||
| *******************************************************************************/ | ||
| package org.eclipse.jdt.internal.launching; | ||
|
|
||
| import java.io.File; | ||
| import java.io.IOException; | ||
| import java.util.Arrays; | ||
| import java.util.Collection; | ||
| import java.util.HashSet; | ||
| import java.util.Objects; | ||
| import java.util.Set; | ||
| import java.util.stream.Collectors; | ||
| import java.util.stream.Stream; | ||
|
|
||
| import org.eclipse.core.runtime.IProgressMonitor; | ||
| import org.eclipse.core.runtime.IStatus; | ||
| import org.eclipse.core.runtime.Platform; | ||
| import org.eclipse.core.runtime.Status; | ||
| import org.eclipse.core.runtime.SubMonitor; | ||
| import org.eclipse.core.runtime.jobs.Job; | ||
| import org.eclipse.jdt.launching.IVMInstall; | ||
| import org.eclipse.jdt.launching.IVMInstall2; | ||
| import org.eclipse.jdt.launching.IVMInstallType; | ||
| import org.eclipse.jdt.launching.JavaRuntime; | ||
| import org.eclipse.jdt.launching.VMStandin; | ||
|
|
||
| /** | ||
| * Lookup for VMs installed in standard or usual locations; and add the existing ones that | ||
| * are not yet known by JDT to the VM registry (usually visible in the "Installed JREs" | ||
| * preference page) | ||
| */ | ||
| class DetectVMInstallationsJob extends Job { | ||
|
|
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| private static final Object FAMILY = DetectVMInstallationsJob.class; | ||
|
|
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| private final StandardVMType standardType; | ||
|
|
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| DetectVMInstallationsJob() { | ||
| super(LaunchingMessages.lookupInstalledJVMs); | ||
| this.standardType = (StandardVMType)JavaRuntime.getVMInstallType(StandardVMType.ID_STANDARD_VM_TYPE); | ||
| } | ||
|
|
||
| @Override | ||
| protected IStatus run(IProgressMonitor monitor) { | ||
| Collection<File> candidates = computeCandidateVMs(); | ||
| if (monitor.isCanceled()) { | ||
| return Status.CANCEL_STATUS; | ||
| } | ||
| Set<File> knownVMs = knownVMs(); | ||
| candidates.removeIf(knownVMs::contains); | ||
| monitor.beginTask(LaunchingMessages.lookupInstalledJVMs, candidates.size()); | ||
| for (File f : candidates) { | ||
| if (monitor.isCanceled()) { | ||
| return Status.CANCEL_STATUS; | ||
| } | ||
| SubMonitor subMon = SubMonitor.convert(monitor, f.getAbsolutePath(), 1); | ||
| VMStandin workingCopy = new VMStandin(standardType, f.getAbsolutePath()); | ||
| workingCopy.setInstallLocation(f); | ||
| String name = f.getName(); | ||
| int i = 1; | ||
| while (isDuplicateName(name)) { | ||
| name = f.getName() + '(' + i++ + ')'; | ||
| } | ||
| workingCopy.setName(name); | ||
| IVMInstall install = workingCopy.convertToRealVM(); | ||
| if (!(install instanceof IVMInstall2 vm && vm.getJavaVersion() != null)) { | ||
| // worksaround: such VMs may cause issue later | ||
| // https://github.com/eclipse-jdt/eclipse.jdt.debug/issues/248 | ||
| standardType.disposeVMInstall(install.getId()); | ||
| } | ||
| subMon.done(); | ||
| } | ||
| return Status.OK_STATUS; | ||
| } | ||
|
|
||
| private boolean isDuplicateName(String name) { | ||
| return Stream.of(JavaRuntime.getVMInstallTypes()) // | ||
| .flatMap(vmType -> Arrays.stream(vmType.getVMInstalls())) // | ||
| .map(IVMInstall::getName) // | ||
| .anyMatch(name::equals); | ||
| } | ||
|
|
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| private Collection<File> computeCandidateVMs() { | ||
| // parent directories containing a collection of VM installations | ||
| Collection<File> rootDirectories = new HashSet<>(); | ||
| if (!Platform.OS_WIN32.equals(Platform.getOS())) { | ||
| rootDirectories.add(new File("/usr/lib/jvm")); //$NON-NLS-1$ | ||
| } | ||
| if (Platform.OS_MACOSX.equals(Platform.getOS())) { | ||
| rootDirectories.add(new File("/Library/Java/JavaVirtualMachines")); //$NON-NLS-1$ | ||
| } | ||
| rootDirectories.add(new File(System.getProperty("user.home"), ".sdkman/candidates/java")); //$NON-NLS-1$ //$NON-NLS-2$ | ||
|
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| Set<File> directories = rootDirectories.stream().filter(File::isDirectory) | ||
| .map(dir -> dir.listFiles(File::isDirectory)) | ||
| .flatMap(Arrays::stream) | ||
| .filter(Objects::nonNull) | ||
| .collect(Collectors.toSet()); | ||
|
|
||
| // particular VM installations | ||
| String javaHome = System.getenv("JAVA_HOME"); //$NON-NLS-1$ | ||
| if (javaHome != null) { | ||
| directories.add(new File(javaHome)); | ||
| } | ||
| String jdkHome = System.getenv("JDK_HOME"); //$NON-NLS-1$ | ||
| if (jdkHome != null) { | ||
| directories.add(new File(jdkHome)); | ||
| } | ||
| // other common/standard lookup strategies can be added here | ||
|
|
||
| return directories.stream() | ||
| .filter(Objects::nonNull) | ||
| .filter(File::isDirectory) | ||
| .map(t -> { | ||
| try { | ||
| return t.getCanonicalFile(); | ||
| } catch (IOException e) { | ||
| return null; | ||
| } | ||
| }).filter(Objects::nonNull) | ||
| .filter(location -> standardType.validateInstallLocation(location).isOK()) | ||
| .collect(Collectors.toCollection(HashSet::new)); | ||
| } | ||
|
|
||
| private static Set<File> knownVMs() { | ||
| return Stream.of(JavaRuntime.getVMInstallTypes()) | ||
| .map(IVMInstallType::getVMInstalls) | ||
| .flatMap(Arrays::stream) | ||
| .map(IVMInstall::getInstallLocation) | ||
| .filter(Objects::nonNull) | ||
| .map(t -> { | ||
| try { | ||
| return t.getCanonicalFile(); | ||
| } catch (IOException e) { | ||
| return null; | ||
| } | ||
| }).filter(Objects::nonNull) | ||
| .collect(Collectors.toSet()); | ||
| } | ||
|
|
||
| @Override | ||
| public boolean belongsTo(Object family) { | ||
| return family.equals(FAMILY); | ||
| } | ||
|
|
||
| } |
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