| /******************************************************************************* |
| * Copyright (c) 2000, 2019 IBM Corporation 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 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.launching; |
| |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| |
| /** |
| * An implementation of IVMInstall that is used for manipulating VMs without necessarily |
| * committing changes. |
| * <p> |
| * Instances of this class act like wrappers. All other instances of IVMInstall represent |
| * 'real live' VMs that may be used for building or launching. Instances of this class |
| * behave like 'temporary' VMs that are not visible and not available for building or launching. |
| * </p> |
| * <p> |
| * Instances of this class may be constructed as a preliminary step to creating a 'live' VM |
| * or as a preliminary step to making changes to a 'real' VM. |
| * </p> |
| * When <code>convertToRealVM</code> is called, a corresponding 'real' VM is created |
| * if one did not previously exist, or the corresponding 'real' VM is updated. |
| * <p> |
| * Clients may instantiate this class. |
| * |
| * @since 2.1 |
| * @noextend This class is not intended to be sub-classed by clients. |
| */ |
| public class VMStandin extends AbstractVMInstall { |
| |
| /** |
| * <code>java.version</code> system property, or <code>null</code> |
| * @since 3.1 |
| */ |
| private String fJavaVersion = null; |
| |
| /* |
| * @see org.eclipse.jdt.launching.AbstractVMInstall#AbstractVMInstall(org.eclipse.jdt.launching.IVMInstallType, java.lang.String) |
| */ |
| public VMStandin(IVMInstallType type, String id) { |
| super(type, id); |
| setNotify(false); |
| } |
| |
| /** |
| * Constructs a copy of the specified VM with the given identifier. |
| * |
| * @param sourceVM the original VM |
| * @param id the new ID to use |
| * @since 3.2 |
| */ |
| public VMStandin(IVMInstall sourceVM, String id) { |
| super(sourceVM.getVMInstallType(), id); |
| setNotify(false); |
| init(sourceVM); |
| } |
| |
| /** |
| * Construct a <code>VMStandin</code> instance based on the specified <code>IVMInstall</code>. |
| * Changes to this stand-in will not be reflected in the 'real' VM until <code>convertToRealVM</code> |
| * is called. |
| * |
| * @param realVM the 'real' VM from which to construct this stand-in VM |
| */ |
| public VMStandin(IVMInstall realVM) { |
| this (realVM.getVMInstallType(), realVM.getId()); |
| init(realVM); |
| } |
| |
| /** |
| * Initializes the settings of this stand-in based on the settings in the given |
| * VM install. |
| * |
| * @param realVM VM to copy settings from |
| */ |
| private void init(IVMInstall realVM) { |
| setName(realVM.getName()); |
| setInstallLocation(realVM.getInstallLocation()); |
| setLibraryLocations(realVM.getLibraryLocations()); |
| setJavadocLocation(realVM.getJavadocLocation()); |
| if (realVM instanceof IVMInstall2) { |
| IVMInstall2 vm2 = (IVMInstall2) realVM; |
| setVMArgs(vm2.getVMArgs()); |
| fJavaVersion = vm2.getJavaVersion(); |
| } else { |
| setVMArguments(realVM.getVMArguments()); |
| fJavaVersion = null; |
| } |
| if (realVM instanceof AbstractVMInstall) { |
| AbstractVMInstall vm2 = (AbstractVMInstall) realVM; |
| Map<String, String> attributes = vm2.getAttributes(); |
| Iterator<Entry<String, String>> iterator = attributes.entrySet().iterator(); |
| while (iterator.hasNext()) { |
| Entry<String, String> entry = iterator.next(); |
| setAttribute(entry.getKey(), entry.getValue()); |
| } |
| } |
| } |
| |
| /** |
| * If no corresponding 'real' VM exists, create one and populate it from this stand-in instance. |
| * If a corresponding VM exists, update its attributes from this stand-in instance. |
| * |
| * @return IVMInstall the 'real' corresponding to this stand-in VM |
| */ |
| @SuppressWarnings("deprecation") |
| public IVMInstall convertToRealVM() { |
| IVMInstallType vmType= getVMInstallType(); |
| IVMInstall realVM= vmType.findVMInstall(getId()); |
| boolean notify = true; |
| |
| if (realVM == null) { |
| realVM= vmType.createVMInstall(getId()); |
| notify = false; |
| } |
| // do not notify of property changes on new VMs |
| if (realVM instanceof AbstractVMInstall) { |
| ((AbstractVMInstall)realVM).setNotify(notify); |
| } |
| realVM.setName(getName()); |
| realVM.setInstallLocation(getInstallLocation()); |
| realVM.setLibraryLocations(getLibraryLocations()); |
| realVM.setJavadocLocation(getJavadocLocation()); |
| if (realVM instanceof IVMInstall2) { |
| IVMInstall2 vm2 = (IVMInstall2) realVM; |
| vm2.setVMArgs(getVMArgs()); |
| } else { |
| realVM.setVMArguments(getVMArguments()); |
| } |
| |
| if (realVM instanceof AbstractVMInstall) { |
| AbstractVMInstall avm = (AbstractVMInstall) realVM; |
| Iterator<Entry<String, String>> iterator = getAttributes().entrySet().iterator(); |
| while (iterator.hasNext()) { |
| Entry<String, String> entry = iterator.next(); |
| avm.setAttribute(entry.getKey(), entry.getValue()); |
| } |
| avm.setNotify(true); |
| } |
| if (!notify) { |
| JavaRuntime.fireVMAdded(realVM); |
| } |
| return realVM; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.launching.IVMInstall#getJavaVersion() |
| */ |
| @Override |
| public String getJavaVersion() { |
| return fJavaVersion; |
| } |
| } |