| /******************************************************************************* |
| * Copyright (c) 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 |
| *******************************************************************************/ |
| |
| |
| package org.eclipse.wst.common.snippets.internal.palette; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.io.UnsupportedEncodingException; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.NullProgressMonitor; |
| import org.eclipse.wst.common.snippets.core.ISnippetCategory; |
| import org.eclipse.wst.common.snippets.core.ISnippetItem; |
| import org.eclipse.wst.common.snippets.core.ISnippetVariable; |
| import org.eclipse.wst.common.snippets.core.ISnippetsEntry; |
| import org.eclipse.wst.common.snippets.internal.Logger; |
| import org.eclipse.wst.common.snippets.internal.PluginRecord; |
| import org.eclipse.wst.common.snippets.internal.SnippetsPlugin; |
| import org.eclipse.wst.common.snippets.internal.util.CommonXML; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| |
| public class WorkspaceModelDumper { |
| |
| private static WorkspaceModelDumper dumper = null; |
| |
| public synchronized static WorkspaceModelDumper getInstance() { |
| if (dumper == null) { |
| dumper = new WorkspaceModelDumper(); |
| } |
| return dumper; |
| } |
| |
| protected WorkspaceModelDumper() { |
| super(); |
| } |
| |
| /** |
| * Save the properties known for ISnippetsEntry |
| */ |
| protected void assignEntryProperties(ISnippetsEntry entry, Element owningElement) { |
| if (entry instanceof SnippetPaletteDrawer) { |
| SnippetPaletteDrawer drawer = (SnippetPaletteDrawer) entry; |
| owningElement.setAttribute(SnippetsPlugin.NAMES.ID, drawer.getId()); |
| owningElement.setAttribute(SnippetsPlugin.NAMES.ICON, drawer.getSmallIconName()); |
| owningElement.setAttribute(SnippetsPlugin.NAMES.LABEL, drawer.getLabel()); |
| owningElement.setAttribute(SnippetsPlugin.NAMES.LARGEICON, drawer.getLargeIconName()); |
| } |
| if (entry instanceof SnippetPaletteItem) { |
| SnippetPaletteItem item = (SnippetPaletteItem) entry; |
| owningElement.setAttribute(SnippetsPlugin.NAMES.ID, item.getId()); |
| owningElement.setAttribute(SnippetsPlugin.NAMES.ICON, item.getSmallIconName()); |
| owningElement.setAttribute(SnippetsPlugin.NAMES.LABEL, item.getLabel()); |
| owningElement.setAttribute(SnippetsPlugin.NAMES.LARGEICON, item.getLargeIconName()); |
| } |
| owningElement.appendChild(createDescription(owningElement.getOwnerDocument(), entry.getDescription())); |
| } |
| |
| /** |
| * If the ISnippetsEntry has a PluginRecord, save the plugin information |
| */ |
| protected void assignSourceFor(ISnippetsEntry entry, Element owningElement) { |
| if (entry.getSourceType() == ISnippetsEntry.SNIPPET_SOURCE_WORKSPACE) { |
| owningElement.setAttribute(SnippetsPlugin.NAMES.SHARED, SnippetsPlugin.NAMES.SHARED); |
| } |
| } |
| |
| /** |
| * Create and save the properties known for LibraryCategories |
| */ |
| protected Element createCategory(Document doc, ISnippetCategory category) { |
| Element element = doc.createElement(SnippetsPlugin.NAMES.CATEGORY); |
| assignSourceFor(category, element); |
| // if the category came from a plugin, only store a placeholder |
| // to maintain the ordering [it will be reloaded in subsequent |
| // sessions directly from the plugin definitions] |
| element.setAttribute(SnippetsPlugin.NAMES.ID, ((SnippetPaletteDrawer) category).getId()); |
| String[] filters = category.getFilters(); |
| if (filters.length > 0) { |
| String filtersAttr = filters[0]; |
| if (filters.length > 1) { |
| for (int i = 1; i < filters.length; i++) { |
| filtersAttr += " " + filters[i]; //$NON-NLS-1$ |
| } |
| } |
| element.setAttribute("filters", filtersAttr); //$NON-NLS-1$ |
| } |
| if (category.getSourceType() == ISnippetsEntry.SNIPPET_SOURCE_WORKSPACE) { |
| assignEntryProperties(category, element); |
| |
| for (int i = 0; i < category.getItems().length; i++) { |
| ISnippetItem item = category.getItems()[i]; |
| Element child = createItem(doc, item); |
| element.appendChild(child); |
| } |
| } |
| |
| if (Logger.DEBUG_DEFINITION_PERSISTENCE) |
| System.out.println("User item writer saving category " + ((SnippetPaletteDrawer) category).getId()); //$NON-NLS-1$ |
| return element; |
| } |
| |
| /** |
| * Create and save the content property of a ISnippetItem - always place |
| * it in a CDATA section for consistency |
| */ |
| protected Element createContent(Document doc, ISnippetItem item) { |
| Element element = doc.createElement(SnippetsPlugin.NAMES.CONTENT); |
| element.appendChild(doc.createCDATASection(item.getContentString())); |
| return element; |
| } |
| |
| /** |
| * Create and save the content property of a ISnippetItem - always place |
| * it in a CDATA section for consistency |
| */ |
| protected Element createDescription(Document doc, String description) { |
| Element element = doc.createElement(SnippetsPlugin.NAMES.DESCRIPTION); |
| if (description != null) |
| element.appendChild(doc.createCDATASection(description)); |
| else |
| element.appendChild(doc.createCDATASection("")); //$NON-NLS-1$ |
| return element; |
| } |
| |
| protected Document createDocument(ISnippetCategory category) { |
| Document document = CommonXML.getDocumentBuilder().getDOMImplementation().createDocument(null, SnippetsPlugin.NAMES.SNIPPETS, null); |
| Element root = document.getDocumentElement(); |
| Element categoryElement = createCategory(document, category); |
| root.appendChild(categoryElement); |
| return document; |
| } |
| |
| /** |
| * Create and save the properties known for LibraryItems |
| */ |
| protected Element createItem(Document doc, ISnippetItem item) { |
| Element element = doc.createElement(SnippetsPlugin.NAMES.ITEM); |
| assignEntryProperties(item, element); |
| assignSourceFor(item, element); |
| element.setAttribute(SnippetsPlugin.NAMES.CATEGORY, ((SnippetPaletteDrawer) item.getCategory()).getId()); |
| element.setAttribute(SnippetsPlugin.NAMES.CLASSNAME, ((SnippetPaletteItem) item).getClassName()); |
| element.setAttribute(SnippetsPlugin.NAMES.EDITORCLASSNAME, ((SnippetPaletteItem) item).getEditorClassName()); |
| element.appendChild(createContent(doc, item)); |
| ISnippetVariable[] variables = item.getVariables(); |
| for (int i = 0; i < variables.length; i++) { |
| Element variable = createVariable(doc, variables[i]); |
| element.appendChild(variable); |
| } |
| if (Logger.DEBUG_DEFINITION_PERSISTENCE) |
| System.out.println("User item writer saving item " + ((SnippetPaletteDrawer) item.getCategory()).getId() + ":" + ((SnippetPaletteItem) item).getId()); //$NON-NLS-1$ //$NON-NLS-2$ |
| return element; |
| } |
| |
| /** |
| * Save the list of plugins already seen as there may no longer be |
| * references to them in the remaining categories and items |
| */ |
| protected Element createPluginRecord(Document doc, PluginRecord record) { |
| Element element = doc.createElement(SnippetsPlugin.NAMES.PLUGIN); |
| element.setAttribute(SnippetsPlugin.NAMES.NAME, record.getPluginName()); |
| element.setAttribute(SnippetsPlugin.NAMES.VERSION, record.getPluginVersion()); |
| if (Logger.DEBUG_DEFINITION_PERSISTENCE) |
| System.out.println("User item writer saving plugin record " + record.getPluginName() + "/" + record.getPluginVersion()); //$NON-NLS-1$ //$NON-NLS-2$ |
| return element; |
| } |
| |
| /** |
| * Create and save the values for a ISnippetVariable |
| */ |
| protected Element createVariable(Document doc, ISnippetVariable variable) { |
| Element element = doc.createElement(SnippetsPlugin.NAMES.VARIABLE); |
| element.setAttribute(SnippetsPlugin.NAMES.ID, ((SnippetVariable) variable).getId()); |
| element.setAttribute(SnippetsPlugin.NAMES.NAME, variable.getName()); |
| element.setAttribute(SnippetsPlugin.NAMES.DEFAULT, variable.getDefaultValue()); |
| element.appendChild(createDescription(doc, variable.getDescription())); |
| return element; |
| } |
| |
| public String toXML(ISnippetsEntry entry) { |
| Document document = CommonXML.getDocumentBuilder().getDOMImplementation().createDocument(null, SnippetsPlugin.NAMES.SNIPPETS, null); |
| ByteArrayOutputStream output = new ByteArrayOutputStream(); |
| |
| if (entry instanceof ISnippetItem) { |
| ISnippetItem item = (ISnippetItem) entry; |
| Element itemElement = createItem(document, item); |
| document.getDocumentElement().appendChild(itemElement); |
| } |
| else { |
| ISnippetCategory category = (ISnippetCategory) entry; |
| Element categoryElement = createCategory(document, category); |
| document.getDocumentElement().appendChild(categoryElement); |
| } |
| |
| try { |
| CommonXML.serialize(document, output); |
| } |
| catch (IOException e) { |
| return e.getMessage(); |
| } |
| String retVal = null; |
| try { |
| retVal = new String(output.toByteArray(), "utf16"); //$NON-NLS-1$ |
| } |
| catch (UnsupportedEncodingException e1) { |
| retVal = new String(output.toByteArray()); |
| } |
| return retVal; |
| } |
| |
| // nsd_TODO: set a valid encoding |
| public void write(ISnippetCategory category, IFile file) { |
| ByteArrayOutputStream output = new ByteArrayOutputStream(); |
| write(category, output); |
| byte[] array = output.toByteArray(); |
| try { |
| file.setContents(new ByteArrayInputStream(array), false, false, new NullProgressMonitor()); |
| } |
| catch (CoreException e) { |
| Logger.logException(e); |
| } |
| } |
| |
| public void write(ISnippetCategory category, OutputStream ostream) { |
| Document document = createDocument(category); |
| try { |
| CommonXML.serialize(document, ostream); //$NON-NLS-1$ |
| ostream.flush(); |
| } |
| catch (IOException e) { |
| Logger.log(Logger.ERROR, "could not save " + ostream, e); //$NON-NLS-1$ |
| } |
| finally { |
| try { |
| ostream.close(); |
| document = null; |
| } |
| catch (IOException e) { |
| // do nothing |
| } |
| } |
| } |
| |
| } |