org.eclipse.wst.common.snippets/src/org/eclipse/wst/common/snippets/internal/palette/ModelFactoryForUser.java - webtools-common/webtools.common.snippets - Git at Google

 /*******************************************************************************
  * Copyright (c) 2004, 2006 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.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.Iterator;

 import javax.xml.parsers.DocumentBuilder;

 import org.eclipse.core.runtime.Platform;
 import org.eclipse.gef.palette.PaletteDrawer;
 import org.eclipse.gef.palette.PaletteEntry;
 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.SnippetDefinitions;
 import org.eclipse.wst.common.snippets.internal.SnippetsPlugin;
 import org.eclipse.wst.common.snippets.internal.util.CommonXML;
 import org.eclipse.wst.common.snippets.internal.util.StringUtils;
 import org.osgi.framework.Bundle;
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 import org.w3c.dom.Node;
 import org.w3c.dom.NodeList;
 import org.xml.sax.InputSource;
 import org.xml.sax.SAXException;

 public class ModelFactoryForUser extends AbstractModelFactory {
 	private static ModelFactoryForUser instance = null;

 	public synchronized static ModelFactoryForUser getInstance() {
 		if (instance == null)
 			instance = new ModelFactoryForUser();
 		return instance;
 	}

 	public ModelFactoryForUser() {
 		super();
 	}

 	protected void addCategory(SnippetDefinitions definitions, Element categoryElement) {
 		SnippetPaletteDrawer category = createCategory(categoryElement);
 		if (category != null) {
 			assignSource(category, definitions, categoryElement);
 			String stateString = categoryElement.getAttribute(SnippetsPlugin.NAMES.INITIAL_STATE);
 			int state = PaletteDrawer.INITIAL_STATE_CLOSED;
 			if (stateString != null && stateString.length() > 0) {
 				try {
 					state = Integer.parseInt(stateString);
 				}
 				catch (NumberFormatException e) {
 					// leave unchanged
 				}
 			}
 			((PaletteDrawer) category).setInitialState(state);

 			definitions.getCategories().add(category);
 			if (Logger.DEBUG_DEFINITION_PERSISTENCE)
 				System.out.println("Plug-in reader creating category " + category.getId()); //$NON-NLS-1$
 			NodeList children = categoryElement.getChildNodes();
 			for (int i = 0; i < children.getLength(); i++) {
 				Node child = children.item(i);
 				if (child != null && child.getNodeType() == Node.ELEMENT_NODE && child.getNodeName().equalsIgnoreCase(SnippetsPlugin.NAMES.ITEM))
 					addChild(definitions, (Element) child);
 			}
 		}
 	}

 	protected void addChild(SnippetDefinitions definitions, Element child) {
 		SnippetPaletteItem item = createItem(child);
 		if (item != null) {
 			assignSource(item, definitions, child);
 			definitions.getItems().add(item);
 			if (Logger.DEBUG_DEFINITION_PERSISTENCE)
 				System.out.println("Plug-in reader creating item " + item.getId()); //$NON-NLS-1$
 		}
 	}

 	protected void assignSource(ISnippetsEntry entry, SnippetDefinitions definitions, Element element) {
 		if (entry instanceof ISnippetItem) {
 			SnippetPaletteItem item = (SnippetPaletteItem) entry;
 			item.setSourceType(ISnippetsEntry.SNIPPET_SOURCE_USER);
 			item.setUserModificationPermission(PaletteEntry.PERMISSION_FULL_MODIFICATION);
 			Object pluginRecord = createPluginRecord(definitions, element);
 			if (pluginRecord != null) {
 				item.setSourceDescriptor(pluginRecord);
 				((PaletteEntry) entry).setUserModificationPermission(PaletteEntry.PERMISSION_HIDE_ONLY);
 				item.setSourceType(ISnippetsEntry.SNIPPET_SOURCE_PLUGINS);
 			}
 			else if (element.getAttribute(SnippetsPlugin.NAMES.SHARED).equals(SnippetsPlugin.NAMES.SHARED)) {
 				item.setSourceType(ISnippetsEntry.SNIPPET_SOURCE_WORKSPACE);
 			}
 		}
 		if (entry instanceof ISnippetCategory) {
 			SnippetPaletteDrawer drawer = (SnippetPaletteDrawer) entry;
 			drawer.setSourceType(ISnippetsEntry.SNIPPET_SOURCE_USER);
 			((PaletteEntry) entry).setUserModificationPermission(PaletteEntry.PERMISSION_FULL_MODIFICATION);
 			Object pluginRecord = createPluginRecord(definitions, element);
 			if (pluginRecord != null) {
 				drawer.setSourceDescriptor(pluginRecord);
 				((PaletteEntry) entry).setUserModificationPermission(PaletteEntry.PERMISSION_HIDE_ONLY);
 				drawer.setSourceType(ISnippetsEntry.SNIPPET_SOURCE_PLUGINS);
 			}
 			else if (element.getAttribute(SnippetsPlugin.NAMES.SHARED).equals(SnippetsPlugin.NAMES.SHARED)) {
 				drawer.setSourceType(ISnippetsEntry.SNIPPET_SOURCE_WORKSPACE);
 			}
 		}
 	}

 	/**
 	 * @see org.eclipse.wst.common.snippets.internal.palette.AbstractModelFactory#createCategory(java.lang.Object)
 	 */
 	public SnippetPaletteDrawer createCategory(Object source) {
 		SnippetPaletteDrawer drawer = super.createCategory(source);
 		return drawer;
 	}

 	protected String createContent(Node item) {
 		String content = readCDATAofChildren(item, SnippetsPlugin.NAMES.CONTENT);

 		/*
 		 * EOL translation
 		 * (https://bugs.eclipse.org/bugs/show_bug.cgi?id=102941). Convert
 		 * '\n' to native EOL.
 		 */
 		String systemEOL = System.getProperty("line.separator"); //$NON-NLS-1$
 		if (!"\n".equals(systemEOL)) { //$NON-NLS-1$
 			content = StringUtils.replace(content, "\n", systemEOL); //$NON-NLS-1$
 		}
 		return content;
 	}

 	protected String createDescription(Node entryElement) {
 		return readCDATAofChildren(entryElement, SnippetsPlugin.NAMES.DESCRIPTION);
 	}

 	protected PluginRecord createPluginRecord(SnippetDefinitions definitions, Element element) {
 		String pluginName = element.getAttribute(SnippetsPlugin.NAMES.PLUGIN);
 		String pluginVersion = element.getAttribute(SnippetsPlugin.NAMES.VERSION);
 		PluginRecord record = null;

 		if (pluginName.length() > 0 && pluginVersion.length() > 0) {
 			record = new PluginRecord();
 			record.setPluginName(pluginName);
 			record.setPluginVersion(pluginVersion);
 		}
 		return record;
 	}

 	protected String[] getDefaultFilters() {
 		return new String[]{"*"}; //$NON-NLS-1$
 	}

 	public String getFilename() {
 		String name = null;
 		try {
 			Bundle bundle = Platform.getBundle(SnippetsPlugin.BUNDLE_ID);
 			name = Platform.getStateLocation(bundle).toOSString() + "/user.xml"; //$NON-NLS-1$
 		}
 		catch (Exception e) {
 			name = "/user.xml"; //$NON-NLS-1$
 		}
 		return name;
 	}

 	protected String getID(Object source) {
 		if (source instanceof Element)
 			return ((Element) source).getAttribute(SnippetsPlugin.NAMES.ID);
 		return null;
 	}

 	public SnippetDefinitions load(String filename) {
 		SnippetDefinitions definitions = new SnippetDefinitions();
 		Document document = null;
 		try {
 			DocumentBuilder builder = CommonXML.getDocumentBuilder();
 			if (builder != null) {
 				InputStream fis = new FileInputStream(filename);
 				document = builder.parse(new InputSource(fis));
 			}
 			else {
 				Logger.log(Logger.ERROR, "Couldn't obtain a DocumentBuilder"); //$NON-NLS-1$
 			}
 		}
 		catch (FileNotFoundException e) {
 			// typical of new workspace, don't log it
 			document = null;
 		}
 		catch (IOException e) {
 			Logger.logException("Could not load user items", e); //$NON-NLS-1$
 			return definitions;
 		}
 		catch (SAXException e) {
 			Logger.logException("Could not load user items", e); //$NON-NLS-1$
 			return definitions;
 		}
 		if (document == null)
 			return definitions;
 		Element library = document.getDocumentElement();
 		if (library == null || !library.getNodeName().equals(SnippetsPlugin.NAMES.SNIPPETS))
 			return definitions;
 		loadDefinitions(definitions, library);

 		connectItemsAndCategories(definitions);

 		return definitions;
 	}

 	public SnippetDefinitions loadCurrent() {
 		return load(getFilename());
 	}

 	protected void loadDefinitions(SnippetDefinitions definitions, Node library) {
 		NodeList children = library.getChildNodes();
 		int length = children.getLength();
 		Node child = null;
 		for (int i = 0; i < length; i++) {
 			child = children.item(i);
 			if (child.getNodeType() == Node.ELEMENT_NODE) {
 				if (child.getNodeName().equals(SnippetsPlugin.NAMES.ITEM)) {
 					addChild(definitions, (Element) child);
 				}
 				else if (child.getNodeName().equals(SnippetsPlugin.NAMES.CATEGORY)) {
 					addCategory(definitions, (Element) child);
 				}
 			}
 		}
 	}

 	/**
 	 * @param list
 	 * @return
 	 */
 	private Object[] nodesToArray(NodeList list) {
 		Object[] objects = new Object[list.getLength()];
 		for (int i = 0; i < list.getLength(); i++)
 			objects[i] = list.item(i);
 		return objects;
 	}

 	/**
 	 * Extracts the contents of a CDATA section arranged like this:
 	 *
 	 * <node><otherChild/><childName><wrong element/> <![CDATA[ RETURNED
 	 * TEXT]]> </childName> </node>
 	 */
 	protected String readCDATAofChildren(Node parentNode, String elementName) {
 		StringBuffer s = new StringBuffer();
 		Node element = parentNode.getFirstChild();
 		while (element != null) {
 			if (element.getNodeType() == Node.ELEMENT_NODE && element.getNodeName().equals(elementName)) {
 				Node child = element.getFirstChild();
 				while (child != null) {
 					if (child.getNodeType() == Node.CDATA_SECTION_NODE) {
 						s.append(child.getNodeValue());
 					}
 					child = child.getNextSibling();
 				}
 				return s.toString(); //$NON-NLS-1$
 			}
 			element = element.getNextSibling();
 		}
 		return s.toString(); //$NON-NLS-1$
 	}

 	protected void setProperties(SnippetPaletteDrawer category, Object source) {
 		if (!(source instanceof Element))
 			return;
 		Element element = ((Element) source);

 		setProperty(category, SnippetsPlugin.NAMES.SMALLICON, element.getAttribute(SnippetsPlugin.NAMES.SMALLICON));
 		setProperty(category, SnippetsPlugin.NAMES.ID, element.getAttribute(SnippetsPlugin.NAMES.ID));
 		setProperty(category, SnippetsPlugin.NAMES.LABEL, element.getAttribute(SnippetsPlugin.NAMES.LABEL));
 		setProperty(category, SnippetsPlugin.NAMES.LARGEICON, element.getAttribute(SnippetsPlugin.NAMES.LARGEICON));
 		NodeList children = element.getChildNodes();
 		for (int i = 0; i < children.getLength(); i++) {
 			if (children.item(i).getNodeName().equals(SnippetsPlugin.NAMES.DESCRIPTION))
 				setProperty(category, SnippetsPlugin.NAMES.DESCRIPTION, createDescription(element));
 		}

 		String filtersAttr = element.getAttribute("filters"); //$NON-NLS-1$
 		String[] filters = null;
 		if (filtersAttr != null)
 			filters = StringUtils.asArray(element.getAttribute("filters")); //$NON-NLS-1$
 		else
 			filters = getDefaultFilters();
 		setProperty(category, "filters", filters); //$NON-NLS-1$
 	}

 	protected void setProperties(SnippetPaletteItem item, Object source) {
 		if (!(source instanceof Element))
 			return;
 		Element element = ((Element) source);

 		setProperty(item, SnippetsPlugin.NAMES.CATEGORY, element.getAttribute(SnippetsPlugin.NAMES.CATEGORY));
 		setProperty(item, SnippetsPlugin.NAMES.CLASSNAME, element.getAttribute(SnippetsPlugin.NAMES.CLASSNAME));
 		setProperty(item, SnippetsPlugin.NAMES.EDITORCLASSNAME, element.getAttribute(SnippetsPlugin.NAMES.EDITORCLASSNAME));
 		setProperty(item, SnippetsPlugin.NAMES.SMALLICON, element.getAttribute(SnippetsPlugin.NAMES.SMALLICON));
 		setProperty(item, SnippetsPlugin.NAMES.ID, element.getAttribute(SnippetsPlugin.NAMES.ID));
 		setProperty(item, SnippetsPlugin.NAMES.LABEL, element.getAttribute(SnippetsPlugin.NAMES.LABEL));
 		setProperty(item, SnippetsPlugin.NAMES.LARGEICON, element.getAttribute(SnippetsPlugin.NAMES.LARGEICON));

 		NodeList children = element.getChildNodes();
 		for (int i = 0; i < children.getLength(); i++) {
 			if (children.item(i).getNodeName().equals(SnippetsPlugin.NAMES.DESCRIPTION))
 				setProperty(item, SnippetsPlugin.NAMES.DESCRIPTION, createDescription(element));
 			else if (children.item(i).getNodeName().equals(SnippetsPlugin.NAMES.CONTENT))
 				setProperty(item, SnippetsPlugin.NAMES.CONTENT, createContent(element));
 			else if (children.item(i).getNodeName().equals(SnippetsPlugin.NAMES.VARIABLES)) {
 				Iterator variables = createVariables(nodesToArray(children.item(i).getChildNodes())).iterator();
 				while (variables.hasNext()) {
 					item.addVariable((ISnippetVariable) variables.next());
 				}
 			}
 			else if (children.item(i).getNodeName().equals(SnippetsPlugin.NAMES.VARIABLE)) {
 				ISnippetVariable var = createVariable(children.item(i));
 				if (var != null)
 					item.addVariable(var);
 			}
 		}
 	}

 	protected void setProperties(SnippetVariable variable, Object source) {
 		if (!(source instanceof Element))
 			return;
 		Element element = ((Element) source);

 		setProperty(variable, SnippetsPlugin.NAMES.DEFAULT, element.getAttribute(SnippetsPlugin.NAMES.DEFAULT));
 		setProperty(variable, SnippetsPlugin.NAMES.DESCRIPTION, element.getAttribute(SnippetsPlugin.NAMES.DESCRIPTION));
 		if (variable.getDescription() == null || variable.getDescription().length() == 0)
 			variable.setDescription(createDescription(element));
 		setProperty(variable, SnippetsPlugin.NAMES.ID, element.getAttribute(SnippetsPlugin.NAMES.ID));
 		setProperty(variable, SnippetsPlugin.NAMES.NAME, element.getAttribute(SnippetsPlugin.NAMES.NAME));
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2004, 2006 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.FileInputStream;
	import java.io.FileNotFoundException;
	import java.io.IOException;
	import java.io.InputStream;
	import java.util.Iterator;

	import javax.xml.parsers.DocumentBuilder;

	import org.eclipse.core.runtime.Platform;
	import org.eclipse.gef.palette.PaletteDrawer;
	import org.eclipse.gef.palette.PaletteEntry;
	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.SnippetDefinitions;
	import org.eclipse.wst.common.snippets.internal.SnippetsPlugin;
	import org.eclipse.wst.common.snippets.internal.util.CommonXML;
	import org.eclipse.wst.common.snippets.internal.util.StringUtils;
	import org.osgi.framework.Bundle;
	import org.w3c.dom.Document;
	import org.w3c.dom.Element;
	import org.w3c.dom.Node;
	import org.w3c.dom.NodeList;
	import org.xml.sax.InputSource;
	import org.xml.sax.SAXException;

	public class ModelFactoryForUser extends AbstractModelFactory {
	private static ModelFactoryForUser instance = null;

	public synchronized static ModelFactoryForUser getInstance() {
	if (instance == null)
	instance = new ModelFactoryForUser();
	return instance;
	}

	public ModelFactoryForUser() {
	super();
	}

	protected void addCategory(SnippetDefinitions definitions, Element categoryElement) {
	SnippetPaletteDrawer category = createCategory(categoryElement);
	if (category != null) {
	assignSource(category, definitions, categoryElement);
	String stateString = categoryElement.getAttribute(SnippetsPlugin.NAMES.INITIAL_STATE);
	int state = PaletteDrawer.INITIAL_STATE_CLOSED;
	if (stateString != null && stateString.length() > 0) {
	try {
	state = Integer.parseInt(stateString);
	}
	catch (NumberFormatException e) {
	// leave unchanged
	}
	}
	((PaletteDrawer) category).setInitialState(state);

	definitions.getCategories().add(category);
	if (Logger.DEBUG_DEFINITION_PERSISTENCE)
	System.out.println("Plug-in reader creating category " + category.getId()); //$NON-NLS-1$
	NodeList children = categoryElement.getChildNodes();
	for (int i = 0; i < children.getLength(); i++) {
	Node child = children.item(i);
	if (child != null && child.getNodeType() == Node.ELEMENT_NODE && child.getNodeName().equalsIgnoreCase(SnippetsPlugin.NAMES.ITEM))
	addChild(definitions, (Element) child);
	}
	}
	}

	protected void addChild(SnippetDefinitions definitions, Element child) {
	SnippetPaletteItem item = createItem(child);
	if (item != null) {
	assignSource(item, definitions, child);
	definitions.getItems().add(item);
	if (Logger.DEBUG_DEFINITION_PERSISTENCE)
	System.out.println("Plug-in reader creating item " + item.getId()); //$NON-NLS-1$
	}
	}

	protected void assignSource(ISnippetsEntry entry, SnippetDefinitions definitions, Element element) {
	if (entry instanceof ISnippetItem) {
	SnippetPaletteItem item = (SnippetPaletteItem) entry;
	item.setSourceType(ISnippetsEntry.SNIPPET_SOURCE_USER);
	item.setUserModificationPermission(PaletteEntry.PERMISSION_FULL_MODIFICATION);
	Object pluginRecord = createPluginRecord(definitions, element);
	if (pluginRecord != null) {
	item.setSourceDescriptor(pluginRecord);
	((PaletteEntry) entry).setUserModificationPermission(PaletteEntry.PERMISSION_HIDE_ONLY);
	item.setSourceType(ISnippetsEntry.SNIPPET_SOURCE_PLUGINS);
	}
	else if (element.getAttribute(SnippetsPlugin.NAMES.SHARED).equals(SnippetsPlugin.NAMES.SHARED)) {
	item.setSourceType(ISnippetsEntry.SNIPPET_SOURCE_WORKSPACE);
	}
	}
	if (entry instanceof ISnippetCategory) {
	SnippetPaletteDrawer drawer = (SnippetPaletteDrawer) entry;
	drawer.setSourceType(ISnippetsEntry.SNIPPET_SOURCE_USER);
	((PaletteEntry) entry).setUserModificationPermission(PaletteEntry.PERMISSION_FULL_MODIFICATION);
	Object pluginRecord = createPluginRecord(definitions, element);
	if (pluginRecord != null) {
	drawer.setSourceDescriptor(pluginRecord);
	((PaletteEntry) entry).setUserModificationPermission(PaletteEntry.PERMISSION_HIDE_ONLY);
	drawer.setSourceType(ISnippetsEntry.SNIPPET_SOURCE_PLUGINS);
	}
	else if (element.getAttribute(SnippetsPlugin.NAMES.SHARED).equals(SnippetsPlugin.NAMES.SHARED)) {
	drawer.setSourceType(ISnippetsEntry.SNIPPET_SOURCE_WORKSPACE);
	}
	}
	}

	/**
	* @see org.eclipse.wst.common.snippets.internal.palette.AbstractModelFactory#createCategory(java.lang.Object)
	*/
	public SnippetPaletteDrawer createCategory(Object source) {
	SnippetPaletteDrawer drawer = super.createCategory(source);
	return drawer;
	}

	protected String createContent(Node item) {
	String content = readCDATAofChildren(item, SnippetsPlugin.NAMES.CONTENT);

	/*
	* EOL translation
	* (https://bugs.eclipse.org/bugs/show_bug.cgi?id=102941). Convert
	* '\n' to native EOL.
	*/
	String systemEOL = System.getProperty("line.separator"); //$NON-NLS-1$
	if (!"\n".equals(systemEOL)) { //$NON-NLS-1$
	content = StringUtils.replace(content, "\n", systemEOL); //$NON-NLS-1$
	}
	return content;
	}

	protected String createDescription(Node entryElement) {
	return readCDATAofChildren(entryElement, SnippetsPlugin.NAMES.DESCRIPTION);
	}

	protected PluginRecord createPluginRecord(SnippetDefinitions definitions, Element element) {
	String pluginName = element.getAttribute(SnippetsPlugin.NAMES.PLUGIN);
	String pluginVersion = element.getAttribute(SnippetsPlugin.NAMES.VERSION);
	PluginRecord record = null;

	if (pluginName.length() > 0 && pluginVersion.length() > 0) {
	record = new PluginRecord();
	record.setPluginName(pluginName);
	record.setPluginVersion(pluginVersion);
	}
	return record;
	}

	protected String[] getDefaultFilters() {
	return new String[]{"*"}; //$NON-NLS-1$
	}

	public String getFilename() {
	String name = null;
	try {
	Bundle bundle = Platform.getBundle(SnippetsPlugin.BUNDLE_ID);
	name = Platform.getStateLocation(bundle).toOSString() + "/user.xml"; //$NON-NLS-1$
	}
	catch (Exception e) {
	name = "/user.xml"; //$NON-NLS-1$
	}
	return name;
	}

	protected String getID(Object source) {
	if (source instanceof Element)
	return ((Element) source).getAttribute(SnippetsPlugin.NAMES.ID);
	return null;
	}

	public SnippetDefinitions load(String filename) {
	SnippetDefinitions definitions = new SnippetDefinitions();
	Document document = null;
	try {
	DocumentBuilder builder = CommonXML.getDocumentBuilder();
	if (builder != null) {
	InputStream fis = new FileInputStream(filename);
	document = builder.parse(new InputSource(fis));
	}
	else {
	Logger.log(Logger.ERROR, "Couldn't obtain a DocumentBuilder"); //$NON-NLS-1$
	}
	}
	catch (FileNotFoundException e) {
	// typical of new workspace, don't log it
	document = null;
	}
	catch (IOException e) {
	Logger.logException("Could not load user items", e); //$NON-NLS-1$
	return definitions;
	}
	catch (SAXException e) {
	Logger.logException("Could not load user items", e); //$NON-NLS-1$
	return definitions;
	}
	if (document == null)
	return definitions;
	Element library = document.getDocumentElement();
	if (library == null \|\| !library.getNodeName().equals(SnippetsPlugin.NAMES.SNIPPETS))
	return definitions;
	loadDefinitions(definitions, library);

	connectItemsAndCategories(definitions);

	return definitions;
	}

	public SnippetDefinitions loadCurrent() {
	return load(getFilename());
	}

	protected void loadDefinitions(SnippetDefinitions definitions, Node library) {
	NodeList children = library.getChildNodes();
	int length = children.getLength();
	Node child = null;
	for (int i = 0; i < length; i++) {
	child = children.item(i);
	if (child.getNodeType() == Node.ELEMENT_NODE) {
	if (child.getNodeName().equals(SnippetsPlugin.NAMES.ITEM)) {
	addChild(definitions, (Element) child);
	}
	else if (child.getNodeName().equals(SnippetsPlugin.NAMES.CATEGORY)) {
	addCategory(definitions, (Element) child);
	}
	}
	}
	}

	/**
	* @param list
	* @return
	*/
	private Object[] nodesToArray(NodeList list) {
	Object[] objects = new Object[list.getLength()];
	for (int i = 0; i < list.getLength(); i++)
	objects[i] = list.item(i);
	return objects;
	}

	/**
	* Extracts the contents of a CDATA section arranged like this:
	*
	* <node><otherChild/><childName><wrong element/> <![CDATA[ RETURNED
	* TEXT]]> </childName> </node>
	*/
	protected String readCDATAofChildren(Node parentNode, String elementName) {
	StringBuffer s = new StringBuffer();
	Node element = parentNode.getFirstChild();
	while (element != null) {
	if (element.getNodeType() == Node.ELEMENT_NODE && element.getNodeName().equals(elementName)) {
	Node child = element.getFirstChild();
	while (child != null) {
	if (child.getNodeType() == Node.CDATA_SECTION_NODE) {
	s.append(child.getNodeValue());
	}
	child = child.getNextSibling();
	}
	return s.toString(); //$NON-NLS-1$
	}
	element = element.getNextSibling();
	}
	return s.toString(); //$NON-NLS-1$
	}

	protected void setProperties(SnippetPaletteDrawer category, Object source) {
	if (!(source instanceof Element))
	return;
	Element element = ((Element) source);

	setProperty(category, SnippetsPlugin.NAMES.SMALLICON, element.getAttribute(SnippetsPlugin.NAMES.SMALLICON));
	setProperty(category, SnippetsPlugin.NAMES.ID, element.getAttribute(SnippetsPlugin.NAMES.ID));
	setProperty(category, SnippetsPlugin.NAMES.LABEL, element.getAttribute(SnippetsPlugin.NAMES.LABEL));
	setProperty(category, SnippetsPlugin.NAMES.LARGEICON, element.getAttribute(SnippetsPlugin.NAMES.LARGEICON));
	NodeList children = element.getChildNodes();
	for (int i = 0; i < children.getLength(); i++) {
	if (children.item(i).getNodeName().equals(SnippetsPlugin.NAMES.DESCRIPTION))
	setProperty(category, SnippetsPlugin.NAMES.DESCRIPTION, createDescription(element));
	}

	String filtersAttr = element.getAttribute("filters"); //$NON-NLS-1$
	String[] filters = null;
	if (filtersAttr != null)
	filters = StringUtils.asArray(element.getAttribute("filters")); //$NON-NLS-1$
	else
	filters = getDefaultFilters();
	setProperty(category, "filters", filters); //$NON-NLS-1$
	}

	protected void setProperties(SnippetPaletteItem item, Object source) {
	if (!(source instanceof Element))
	return;
	Element element = ((Element) source);

	setProperty(item, SnippetsPlugin.NAMES.CATEGORY, element.getAttribute(SnippetsPlugin.NAMES.CATEGORY));
	setProperty(item, SnippetsPlugin.NAMES.CLASSNAME, element.getAttribute(SnippetsPlugin.NAMES.CLASSNAME));
	setProperty(item, SnippetsPlugin.NAMES.EDITORCLASSNAME, element.getAttribute(SnippetsPlugin.NAMES.EDITORCLASSNAME));
	setProperty(item, SnippetsPlugin.NAMES.SMALLICON, element.getAttribute(SnippetsPlugin.NAMES.SMALLICON));
	setProperty(item, SnippetsPlugin.NAMES.ID, element.getAttribute(SnippetsPlugin.NAMES.ID));
	setProperty(item, SnippetsPlugin.NAMES.LABEL, element.getAttribute(SnippetsPlugin.NAMES.LABEL));
	setProperty(item, SnippetsPlugin.NAMES.LARGEICON, element.getAttribute(SnippetsPlugin.NAMES.LARGEICON));

	NodeList children = element.getChildNodes();
	for (int i = 0; i < children.getLength(); i++) {
	if (children.item(i).getNodeName().equals(SnippetsPlugin.NAMES.DESCRIPTION))
	setProperty(item, SnippetsPlugin.NAMES.DESCRIPTION, createDescription(element));
	else if (children.item(i).getNodeName().equals(SnippetsPlugin.NAMES.CONTENT))
	setProperty(item, SnippetsPlugin.NAMES.CONTENT, createContent(element));
	else if (children.item(i).getNodeName().equals(SnippetsPlugin.NAMES.VARIABLES)) {
	Iterator variables = createVariables(nodesToArray(children.item(i).getChildNodes())).iterator();
	while (variables.hasNext()) {
	item.addVariable((ISnippetVariable) variables.next());
	}
	}
	else if (children.item(i).getNodeName().equals(SnippetsPlugin.NAMES.VARIABLE)) {
	ISnippetVariable var = createVariable(children.item(i));
	if (var != null)
	item.addVariable(var);
	}
	}
	}

	protected void setProperties(SnippetVariable variable, Object source) {
	if (!(source instanceof Element))
	return;
	Element element = ((Element) source);

	setProperty(variable, SnippetsPlugin.NAMES.DEFAULT, element.getAttribute(SnippetsPlugin.NAMES.DEFAULT));
	setProperty(variable, SnippetsPlugin.NAMES.DESCRIPTION, element.getAttribute(SnippetsPlugin.NAMES.DESCRIPTION));
	if (variable.getDescription() == null \|\| variable.getDescription().length() == 0)
	variable.setDescription(createDescription(element));
	setProperty(variable, SnippetsPlugin.NAMES.ID, element.getAttribute(SnippetsPlugin.NAMES.ID));
	setProperty(variable, SnippetsPlugin.NAMES.NAME, element.getAttribute(SnippetsPlugin.NAMES.NAME));
	}
	}