| /******************************************************************************* |
| * Copyright (c) 2005 IBM 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 |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.launching; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Set; |
| |
| import javax.xml.parsers.ParserConfigurationException; |
| import javax.xml.transform.TransformerException; |
| |
| import org.eclipse.core.runtime.preferences.IEclipsePreferences; |
| import org.eclipse.core.runtime.preferences.IPreferenceNodeVisitor; |
| import org.eclipse.core.runtime.preferences.PreferenceModifyListener; |
| import org.eclipse.jdt.launching.IVMInstall; |
| import org.eclipse.jdt.launching.JavaRuntime; |
| import org.osgi.service.prefs.BackingStoreException; |
| |
| /** |
| * Manages import of installed JREs. Merges valid impoted JREs with existing JREs. |
| * |
| * @since 3.1 |
| */ |
| public class JREPreferenceModifyListener extends PreferenceModifyListener { |
| |
| class Visitor implements IPreferenceNodeVisitor { |
| |
| 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 = LaunchingPlugin.getDefault().getPluginPreferences().getString(JavaRuntime.PREF_VM_XML); |
| Set names = new HashSet(); |
| Set locations = new HashSet(); |
| if (pref.length() > 0) { |
| try { |
| VMDefinitionsContainer container = VMDefinitionsContainer.parseXMLIntoContainer(new ByteArrayInputStream(pref.getBytes())); |
| List validVMList = container.getValidVMList(); |
| Iterator iterator = validVMList.iterator(); |
| while (iterator.hasNext()) { |
| IVMInstall vm = (IVMInstall) iterator.next(); |
| names.add(vm.getName()); |
| locations.add(vm.getInstallLocation()); |
| 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 |
| ByteArrayInputStream inputStream = new ByteArrayInputStream(jresXML.getBytes()); |
| try { |
| VMDefinitionsContainer container = VMDefinitionsContainer.parseXMLIntoContainer(inputStream); |
| List validVMList = container.getValidVMList(); |
| Iterator iterator = validVMList.iterator(); |
| while (iterator.hasNext()) { |
| IVMInstall vm = (IVMInstall) iterator.next(); |
| if (!names.contains(vm.getName()) && !locations.contains(vm.getInstallLocation())) { |
| vms.addVM(vm); |
| } |
| } |
| } catch (IOException e) { |
| LaunchingPlugin.log(e); |
| return false; |
| } |
| try { |
| String xml = vms.getAsXML(); |
| node.put(JavaRuntime.PREF_VM_XML, xml); |
| } catch (ParserConfigurationException e) { |
| LaunchingPlugin.log(e); |
| return false; |
| } catch (IOException e) { |
| LaunchingPlugin.log(e); |
| return false; |
| } catch (TransformerException e) { |
| LaunchingPlugin.log(e); |
| return false; |
| } |
| } |
| return false; |
| } |
| return true; |
| } |
| |
| } |
| |
| public IEclipsePreferences preApply(IEclipsePreferences node) { |
| try { |
| node.accept(new Visitor()); |
| } catch (BackingStoreException e) { |
| LaunchingPlugin.log(e); |
| } |
| return node; |
| } |
| |
| |
| } |