| /******************************************************************************* |
| * Copyright (c) 2001, 2004 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 |
| * Jens Lukowski/Innoopract - initial renaming/restructuring |
| * |
| *******************************************************************************/ |
| package org.eclipse.wst.sse.core.internal.builder; |
| |
| import java.util.Map; |
| import java.util.WeakHashMap; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.wst.sse.core.IModelManager; |
| import org.eclipse.wst.sse.core.IStructuredModel; |
| import org.eclipse.wst.sse.core.internal.Logger; |
| import org.eclipse.wst.sse.core.internal.ltk.builder.IBuilderModelProvider; |
| import org.eclipse.wst.sse.core.text.IStructuredDocument; |
| |
| |
| public class BuilderModelProvider implements IBuilderModelProvider { |
| private static final boolean _debug = "true".equalsIgnoreCase(Platform.getDebugOption("org.eclipse.wst.sse.core/builder/modelprovider")); //$NON-NLS-1$ //$NON-NLS-2$ |
| |
| private Map fDocuments = null; |
| private IModelManager fModelManager; |
| private Map fModels = null; |
| |
| public BuilderModelProvider(IModelManager manager) { |
| |
| super(); |
| fModelManager = manager; |
| } |
| |
| /** |
| * Creates the document for this file; current done by retrieving it from |
| * an IStructuredModel |
| * |
| * @param file |
| * @return |
| * @todo Generated comment |
| */ |
| private IStructuredDocument createDocument(IFile file) { |
| |
| // For now, we have to retrieve the IStructuredDocument from the |
| // IStructuredModel. |
| IStructuredModel model = getModel(file); |
| if (model != null) { |
| if (_debug) { |
| System.out.println(getClass().getName() + " created IStructuredDocument for " + file.getFullPath().toString()); //$NON-NLS-1$ |
| } |
| return model.getStructuredDocument(); |
| } |
| return null; |
| } |
| |
| |
| /** |
| * Creates the model for this file. Currently, does it using the |
| * IModelManager from scratch. TODO: C4, create the model using the |
| * document (creating the document if needed, first) |
| * |
| * @param file |
| * @return |
| * @todo Generated comment |
| */ |
| private IStructuredModel createModel(IFile file) { |
| try { |
| IStructuredModel model = null; |
| if (_debug) { |
| System.out.println(getClass().getName() + " created IStructuredModel for " + file.getFullPath().toString()); //$NON-NLS-1$ |
| } |
| model = getModelManager().getExistingModelForRead(file); |
| if (model != null) { |
| // we have our reference, allow the |
| // IModelManager to dispose if needed |
| model.releaseFromRead(); |
| } else { |
| model = getModelManager().createUnManagedStructuredModelFor(file); |
| } |
| return model; |
| } |
| // catch 'em all |
| catch (Exception t) { |
| Logger.log(Logger.WARNING, "Exception caught creating IStructuredModel for file " + file.getFullPath().toOSString() + ":" + t); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| return null; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.wst.sse.core.builder.IBuilderModelProvider#getDocument(org.eclipse.core.resources.IFile) |
| */ |
| public IStructuredDocument getDocument(IFile file) { |
| |
| if (file == null) { |
| return null; |
| } |
| IStructuredDocument document = (IStructuredDocument) getDocuments().get(file); |
| if (document == null) { |
| document = createDocument(file); |
| if (document != null) { |
| getDocuments().put(file, document); |
| } |
| } |
| return document; |
| } |
| |
| /** |
| * @return Returns the documents. |
| */ |
| public Map getDocuments() { |
| |
| if (fDocuments == null) { |
| fDocuments = new WeakHashMap(); |
| } |
| return fDocuments; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.wst.sse.core.builder.IBuilderModelProvider#getModel(org.eclipse.core.resources.IFile) |
| */ |
| public IStructuredModel getModel(IFile file) { |
| |
| if (file == null) { |
| return null; |
| } |
| IStructuredModel model = (IStructuredModel) getModels().get(file); |
| if (model == null) { |
| model = createModel(file); |
| if (model != null) { |
| getModels().put(file, model); |
| } |
| } |
| return model; |
| } |
| |
| protected IModelManager getModelManager() { |
| |
| return fModelManager; |
| } |
| |
| /** |
| * @return Returns the models. |
| */ |
| public Map getModels() { |
| |
| if (fModels == null) { |
| fModels = new WeakHashMap(); |
| } |
| return fModels; |
| } |
| |
| public void release(IFile file) { |
| |
| if (_debug) { |
| System.out.println(getClass().getName() + " released resources for " + file.getProjectRelativePath().toString()); //$NON-NLS-1$ |
| } |
| getDocuments().remove(file); |
| getModels().remove(file); |
| } |
| |
| public void releaseAll() { |
| |
| if (_debug) { |
| System.out.println(getClass().getName() + " released all resources"); //$NON-NLS-1$ |
| } |
| getDocuments().clear(); |
| getModels().clear(); |
| } |
| } |