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/* |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
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* |
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* Copyright 2009 Sun Microsystems, Inc. All rights reserved. |
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* |
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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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* |
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* If you wish your version of this file to be governed by only the CDDL |
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* or only the GPL Version 2, indicate your decision by adding |
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* "[Contributor] elects to include this software in this distribution |
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* under the [CDDL or GPL Version 2] license." If you do not indicate a |
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* single choice of license, a recipient has the option to distribute |
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* your version of this file under either the CDDL, the GPL Version 2 or |
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* to extend the choice of license to its licensees as provided above. |
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* However, if you add GPL Version 2 code and therefore, elected the GPL |
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* Version 2 license, then the option applies only if the new code is |
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* made subject to such option by the copyright holder. |
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* |
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* Contributor(s): |
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* |
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* Samuel Halliday |
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* |
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* Portions Copyrighted 2009 Sun Microsystems, Inc. |
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*/ |
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package org.netbeans.modules.editor.java; |
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|
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import java.util.ArrayList; |
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import java.util.Collection; |
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import java.util.concurrent.locks.ReadWriteLock; |
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import java.util.concurrent.locks.ReentrantReadWriteLock; |
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|
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/** |
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* A whitelist/blacklist of excluded classes and packages for the Java completer. |
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* Requested in RFE #125060. |
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* |
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* @author Samuel Halliday |
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*/ |
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final class ExcludeCompletion { |
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|
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private final Collection<String> exclude = new ArrayList<String>(); |
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private final Collection<String> include = new ArrayList<String>(); |
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private final ReadWriteLock lock = new ReentrantReadWriteLock(); |
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|
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/** */ |
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public ExcludeCompletion() { |
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} |
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|
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/** |
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* @param fqn Fully Qualified Name |
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* @return |
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*/ |
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public boolean isExcluded(final CharSequence fqn) { |
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//#122334: do not propose imports from the default package |
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if (fqn == null || fqn.length() == 0) { |
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return true; |
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} |
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|
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String s = fqn.toString(); |
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lock.readLock().lock(); |
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try { |
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if (!include.isEmpty()) { |
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for (String entry : include) { |
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if (entry.length() > fqn.length()) { |
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if (entry.startsWith(s)) { |
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return false; |
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} |
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} else if (s.startsWith(entry)) { |
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return false; |
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} |
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} |
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} |
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|
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if (!exclude.isEmpty()) { |
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for (String entry : exclude) { |
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if (entry.endsWith(".") && fqn.equals(entry.substring(0, entry.length() - 1))) { // NOI18N |
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// exclude packages names (no trailing fullstop) |
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return true; |
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} |
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if (entry.length() > fqn.length()) { |
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// fqn not long enough to filter yet |
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continue; |
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} |
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if (s.startsWith(entry)) { |
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return true; |
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} |
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} |
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} |
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|
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return false; |
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} finally { |
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lock.readLock().unlock(); |
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} |
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} |
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|
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/** |
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* @param blacklist comma separated list of fqns |
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*/ |
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public void updateBlacklist(String blacklist) { |
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update(exclude, blacklist); |
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} |
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|
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/** |
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* @param whitelist comma separated list of fqns |
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*/ |
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public void updateWhitelist(String whitelist) { |
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update(include, whitelist); |
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} |
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|
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private void update(Collection<String> existing, String updated) { |
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lock.writeLock().lock(); |
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try { |
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existing.clear(); |
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if (updated == null || updated.length() == 0) { |
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return; |
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} |
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String[] entries = updated.split(","); //NOI18N |
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for (String entry : entries) { |
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if (entry != null && entry.length() != 0) { |
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existing.add(entry); |
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} |
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} |
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} finally { |
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lock.writeLock().unlock(); |
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} |
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} |
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} |