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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
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* The contents of this file are subject to the terms of either the GNU
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* General Public License Version 2 only ("GPL") or the Common
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* Development and Distribution License("CDDL") (collectively, the
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* "License"). You may not use this file except in compliance with the
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* License. You can obtain a copy of the License at
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* http://www.netbeans.org/cddl-gplv2.html
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* or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
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* specific language governing permissions and limitations under the
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* License. When distributing the software, include this License Header
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* Notice in each file and include the License file at
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* nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the GPL Version 2 section of the License file that
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* accompanied this code. If applicable, add the following below the
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* License Header, with the fields enclosed by brackets [] replaced by
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* your own identifying information:
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* "Portions Copyrighted [year] [name of copyright owner]"
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* The Original Software is NetBeans. The Initial Developer of the Original
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* Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
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* Microsystems, Inc. All Rights Reserved.
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* If you wish your version of this file to be governed by only the CDDL
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* "[Contributor] elects to include this software in this distribution
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* However, if you add GPL Version 2 code and therefore, elected the GPL
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* made subject to such option by the copyright holder.
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package org.netbeans.api.languages;
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import java.lang.ref.WeakReference;
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import java.util.Iterator;
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import java.util.WeakHashMap;
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import javax.swing.text.Document;
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import org.netbeans.modules.languages.ParserManagerImpl;
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* Represents parser implementation.
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public abstract class ParserManager {
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public static enum State {
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/** Parser is running. */
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/** Parsed without errors. */
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/** Parser with errors. */
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/** Parser has not been started yet. */
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private static Map<Document,WeakReference<ParserManager>> managers =
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new WeakHashMap<Document,WeakReference<ParserManager>> ();
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* Returns parser for given {@link javax.swing.text.Document}.
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* @return parser for given {@link javax.swing.text.Document}
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public static synchronized ParserManager get (Document doc) {
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WeakReference<ParserManager> wr = managers.get (doc);
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ParserManager pm = wr != null ? wr.get () : null;
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pm = new ParserManagerImpl (doc);
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managers.put (doc, new WeakReference<ParserManager> (pm));
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//Utils.startTest ("ParserManager.managers", managers);
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* Returns state of parser.
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* @retrun a state of parser
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public abstract State getState ();
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* Returns AST tree root node.
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* @throws in the case of errors in document
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* @retrun AST tree root node
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public abstract ASTNode getAST () throws ParseException;
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* Registers ParserManagerListener.
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* @param l ParserManagerListener to be registerred
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public abstract void addListener (ParserManagerListener l);
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* Unregisters ParserManagerListener.
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* @param l ParserManagerListener to be unregisterred
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public abstract void removeListener (ParserManagerListener l);
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* Registers ASTEvaluator.
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* @param l ASTEvaluator to be unregisterred
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public abstract void addASTEvaluator (ASTEvaluator e);
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* Unregisters ASTEvaluator.
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* @param l ASTEvaluator to be unregisterred
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public abstract void removeASTEvaluator (ASTEvaluator e);
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private static void printManagers () {
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System.out.println("\nParserManagers:");
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Iterator<Document> it = managers.keySet ().iterator ();
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while (it.hasNext ()) {
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Document document = it.next ();
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String title = (String) document.getProperty("title");
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title = document.toString();
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WeakReference wr = managers.get (document);
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if (wr.get () != null)
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System.out.println(" " + title);