| /******************************************************************************* |
| * Copyright (c) 2005, 2015 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.internal.launching; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.preferences.IEclipsePreferences; |
| import org.eclipse.core.runtime.preferences.IPreferenceNodeVisitor; |
| import org.eclipse.core.runtime.preferences.InstanceScope; |
| import org.eclipse.core.runtime.preferences.PreferenceModifyListener; |
| import org.eclipse.jdt.launching.IVMInstall; |
| import org.eclipse.jdt.launching.JavaRuntime; |
| import org.eclipse.jdt.launching.VMStandin; |
| import org.osgi.service.prefs.BackingStoreException; |
| |
| /** |
| * Manages import of installed JREs. Merges valid imported JREs with existing JREs. |
| * |
| * @since 3.1 |
| */ |
| public class JREPreferenceModifyListener extends PreferenceModifyListener { |
| |
| class Visitor implements IPreferenceNodeVisitor { |
| |
| @Override |
| public boolean visit(IEclipsePreferences node) throws BackingStoreException { |
| if (node.name().equals(LaunchingPlugin.getUniqueIdentifier())) { |
| String jresXML = node.get(JavaRuntime.PREF_VM_XML, null); |
| if (jresXML != null) { |
| VMDefinitionsContainer vms = new VMDefinitionsContainer(); |
| String pref = InstanceScope.INSTANCE.getNode(LaunchingPlugin.ID_PLUGIN).get(JavaRuntime.PREF_VM_XML, ""); //$NON-NLS-1$ |
| // names -> existing vm's |
| Map<String, IVMInstall> names = new HashMap<>(); |
| Set<String> ids = new HashSet<>(); |
| if (pref.length() > 0) { |
| try { |
| VMDefinitionsContainer container = VMDefinitionsContainer.parseXMLIntoContainer(new ByteArrayInputStream(pref.getBytes("UTF8"))); //$NON-NLS-1$ |
| List<IVMInstall> validVMList = container.getValidVMList(); |
| Iterator<IVMInstall> iterator = validVMList.iterator(); |
| while (iterator.hasNext()) { |
| IVMInstall vm = iterator.next(); |
| names.put(vm.getName(), vm); |
| ids.add(vm.getId()); |
| vms.addVM(vm); |
| } |
| vms.setDefaultVMInstallCompositeID(container.getDefaultVMInstallCompositeID()); |
| vms.setDefaultVMInstallConnectorTypeID(container.getDefaultVMInstallConnectorTypeID()); |
| } catch (IOException e) { |
| LaunchingPlugin.log(e); |
| return false; |
| } |
| } |
| // merge valid VMs with existing VMs |
| try { |
| ByteArrayInputStream inputStream = new ByteArrayInputStream(jresXML.getBytes("UTF8")); //$NON-NLS-1$ |
| VMDefinitionsContainer container = VMDefinitionsContainer.parseXMLIntoContainer(inputStream); |
| List<IVMInstall> validVMList = container.getValidVMList(); |
| Iterator<IVMInstall> iterator = validVMList.iterator(); |
| while (iterator.hasNext()) { |
| IVMInstall vm = iterator.next(); |
| IVMInstall existing = names.get(vm.getName()); |
| if (existing != null) { |
| // VM with same name already exists - replace with imported VM |
| vms.removeVM(existing); |
| ids.remove(existing.getId()); |
| } |
| boolean collision = ids.contains(vm.getId()); |
| if (collision) { |
| // conflicting id, create a new one with unique id |
| long unique = System.currentTimeMillis(); |
| while(ids.contains(String.valueOf(unique))){ |
| unique++; |
| } |
| vm = new VMStandin(vm, String.valueOf(unique)); |
| ids.add(vm.getId()); |
| } |
| vms.addVM(vm); |
| } |
| // update default VM if it exists |
| String defaultVMInstallCompositeID = container.getDefaultVMInstallCompositeID(); |
| validVMList = vms.getValidVMList(); |
| iterator = validVMList.iterator(); |
| while (iterator.hasNext()) { |
| IVMInstall vm = iterator.next(); |
| if (JavaRuntime.getCompositeIdFromVM(vm).equals(defaultVMInstallCompositeID)) { |
| vms.setDefaultVMInstallCompositeID(defaultVMInstallCompositeID); |
| break; |
| } |
| } |
| } catch (IOException e) { |
| LaunchingPlugin.log(e); |
| return false; |
| } |
| try { |
| String xml = vms.getAsXML(); |
| node.put(JavaRuntime.PREF_VM_XML, xml); |
| } catch (CoreException e) { |
| LaunchingPlugin.log(e); |
| return false; |
| } |
| } |
| return false; |
| } |
| return true; |
| } |
| |
| } |
| |
| @Override |
| public IEclipsePreferences preApply(IEclipsePreferences node) { |
| try { |
| // force VMs to be initialized before we import the new VMs |
| JavaRuntime.getVMInstallTypes(); |
| node.accept(new Visitor()); |
| } catch (BackingStoreException e) { |
| LaunchingPlugin.log(e); |
| } |
| return node; |
| } |
| |
| |
| } |