| /******************************************************************************* |
| * Copyright (c) 2006 The Regents of the University of California. |
| * This material was produced under U.S. Government contract W-7405-ENG-36 |
| * for Los Alamos National Laboratory, which is operated by the University |
| * of California for the U.S. Department of Energy. The U.S. Government has |
| * rights to use, reproduce, and distribute this software. NEITHER THE |
| * GOVERNMENT NOR THE UNIVERSITY MAKES ANY WARRANTY, EXPRESS OR IMPLIED, OR |
| * ASSUMES ANY LIABILITY FOR THE USE OF THIS SOFTWARE. If software is modified |
| * to produce derivative works, such modified software should be clearly marked, |
| * so as not to confuse it with the version available from LANL. |
| * |
| * Additionally, 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 |
| * |
| * LA-CC 04-115 |
| *******************************************************************************/ |
| package org.eclipse.ptp.internal.rmsystem; |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.FileReader; |
| import java.io.FileWriter; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.MultiStatus; |
| import org.eclipse.ptp.core.PTPCorePlugin; |
| import org.eclipse.ptp.core.elementcontrols.IResourceManagerControl; |
| import org.eclipse.ptp.core.elements.IResourceManager; |
| import org.eclipse.ptp.core.elements.attributes.ResourceManagerAttributes; |
| import org.eclipse.ptp.core.util.DebugUtil; |
| import org.eclipse.ptp.rmsystem.IResourceManagerConfiguration; |
| import org.eclipse.ptp.rmsystem.IResourceManagerFactory; |
| import org.eclipse.ui.IMemento; |
| import org.eclipse.ui.XMLMemento; |
| |
| public class ResourceManagerPersistence { |
| |
| private static final String TAG_RESOURCEMANAGER_INDEX = "ResourceManagerIndex"; |
| |
| private static final String TAG_RESOURCEMANAGERS = "ResourceManagers"; |
| |
| private static final String TAG_RESOURCEMANGER = "ResourceManager"; |
| |
| private static final String TAG_RESOURCEMANGER_CONFIGURATION = "Configuration"; |
| |
| private static final String TAG_RESOURCEMANGER_ID = "ResourceManagerId"; |
| |
| private static final String TAG_RESOURCEMANGER_RUNNING = "IsRunning"; |
| |
| public static void saveResourceManagers(File file, |
| IResourceManagerControl[] resourceManagers) { |
| if (DebugUtil.RM_TRACING) { |
| System.out.println("In saveResourceManagers to file, " + file.getAbsolutePath()); |
| } |
| XMLMemento memento = XMLMemento.createWriteRoot(TAG_RESOURCEMANAGERS); |
| saveResourceManagers(memento, resourceManagers); |
| FileWriter writer = null; |
| try { |
| writer = new FileWriter(file); |
| memento.save(writer); |
| } catch (IOException e) { |
| PTPCorePlugin.log(e); |
| } finally { |
| try { |
| if (writer != null) { |
| writer.close(); |
| } |
| } catch (IOException e) { |
| PTPCorePlugin.log(e); |
| } |
| } |
| if (DebugUtil.RM_TRACING) { |
| System.out.println("Leaving saveResourceManagers"); |
| } |
| } |
| |
| private static void saveResourceManagers(XMLMemento memento, |
| IResourceManagerControl[] resourceManagers) { |
| for (int i = 0; i < resourceManagers.length; ++i) { |
| IMemento child = memento.createChild(TAG_RESOURCEMANGER); |
| child.putString( |
| TAG_RESOURCEMANGER_ID, |
| resourceManagers[i].getConfiguration().getResourceManagerId()); |
| child.putInteger(TAG_RESOURCEMANAGER_INDEX, i); |
| boolean isRunning = resourceManagers[i].getState().equals(ResourceManagerAttributes.State.STARTED); |
| child.putString(TAG_RESOURCEMANGER_RUNNING, isRunning ? "true" : "false"); |
| IMemento grandchild = child.createChild(TAG_RESOURCEMANGER_CONFIGURATION); |
| resourceManagers[i].getConfiguration().save(grandchild); |
| } |
| } |
| |
| private final List<IResourceManagerControl> resourceManagers = |
| new ArrayList<IResourceManagerControl>(); |
| |
| private IResourceManagerControl savedCurrentResourceManager; |
| |
| private final List<IResourceManagerControl> rmsNeedStarting = |
| new ArrayList<IResourceManagerControl>(); |
| |
| public IResourceManagerControl[] getResourceManagerControls() { |
| return resourceManagers.toArray(new IResourceManagerControl[0]); |
| } |
| |
| public IResourceManagerControl[] getResourceManagerControlsNeedStarting() { |
| return rmsNeedStarting.toArray(new IResourceManagerControl[0]); |
| } |
| |
| public IResourceManager getSavedCurrentResourceManager() { |
| return savedCurrentResourceManager; |
| } |
| |
| /** |
| * Loads saved resource managers. |
| * @param file |
| * @param factories |
| * @param monitor |
| * @throws CoreException |
| */ |
| public void loadResourceManagers(File file, |
| IResourceManagerFactory[] factories) throws CoreException { |
| rmsNeedStarting.clear(); |
| resourceManagers.clear(); |
| |
| FileReader reader = null; |
| try { |
| reader = new FileReader(file); |
| loadResourceManagers(XMLMemento.createReadRoot(reader), factories); |
| } catch (FileNotFoundException e) { |
| // ignored... no ResourceManager items exist yet. |
| } finally { |
| try { |
| if (reader != null) { |
| reader.close(); |
| } |
| } catch (IOException e) { |
| PTPCorePlugin.log(e); |
| } |
| } |
| } |
| |
| private IResourceManagerFactory getResourceManagerFactory( |
| IResourceManagerFactory[] factories, String id) { |
| for (int i = 0; i < factories.length; i++) { |
| if (factories[i].getId().equals(id)) |
| return factories[i]; |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Loads saved resource managers. |
| * @param memento |
| * @param factories |
| * @param monitor |
| * @throws CoreException |
| */ |
| private void loadResourceManagers(XMLMemento memento, |
| IResourceManagerFactory[] factories) throws CoreException { |
| IMemento[] children = memento.getChildren(TAG_RESOURCEMANGER); |
| ArrayList<IStatus> statuses = new ArrayList<IStatus>(); |
| final IResourceManagerControl[] tmpRMs = new IResourceManagerControl[children.length]; |
| ArrayList<IResourceManagerControl> rms = new ArrayList<IResourceManagerControl>(tmpRMs.length); |
| |
| for (int i = 0; i < children.length; ++i) { |
| String resourceManagerId = children[i].getString(TAG_RESOURCEMANGER_ID); |
| final int index = children[i].getInteger(TAG_RESOURCEMANAGER_INDEX).intValue(); |
| String isRunningRep = children[i].getString(TAG_RESOURCEMANGER_RUNNING); |
| boolean isRunning = "true".equalsIgnoreCase(isRunningRep); |
| IResourceManagerFactory factory = getResourceManagerFactory( |
| factories, resourceManagerId); |
| if (factory != null) { |
| final IMemento grandchild = children[i].getChild(TAG_RESOURCEMANGER_CONFIGURATION); |
| IResourceManagerConfiguration configuration = factory.loadConfiguration(grandchild); |
| if (configuration != null) { |
| tmpRMs[index] = factory.create(configuration); |
| if (tmpRMs[index] != null) { |
| // start the resource manager if it was running when saved. |
| if (isRunning) { |
| rmsNeedStarting .add(tmpRMs[index]); |
| } |
| rms.add(tmpRMs[index]); |
| } |
| } |
| } |
| } |
| |
| resourceManagers.addAll(rms); |
| if (statuses.size() > 0) { |
| throw new CoreException(new MultiStatus(PTPCorePlugin.PLUGIN_ID, |
| MultiStatus.ERROR, statuses.toArray(new IStatus[0]), |
| "loading resource managers", null)); |
| } |
| } |
| |
| } |