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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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* 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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* 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.modules.editor.java;
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import com.sun.source.tree.Tree;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.EnumSet;
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import java.util.List;
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import java.util.concurrent.Future;
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import java.util.logging.Logger;
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import javax.swing.text.JTextComponent;
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import org.netbeans.api.java.source.Task;
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import org.netbeans.api.java.source.CompilationController;
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import org.netbeans.api.java.source.JavaSource;
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import org.netbeans.api.java.source.JavaSource.Phase;
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import org.netbeans.lib.editor.codetemplates.api.CodeTemplate;
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import org.netbeans.lib.editor.codetemplates.spi.CodeTemplateFilter;
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import org.openide.util.Exceptions;
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public class JavaCodeTemplateFilter implements CodeTemplateFilter, Task<CompilationController> {
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private static final Logger LOG = Logger.getLogger(JavaCodeTemplateFilter.class.getName());
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private int startOffset;
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private int endOffset;
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private Tree.Kind ctx = null;
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private JavaCodeTemplateFilter(JTextComponent component, int offset) {
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this.startOffset = offset;
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this.endOffset = component.getSelectionStart() == offset ? component.getSelectionEnd() : -1;
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JavaSource js = JavaSource.forDocument(component.getDocument());
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Future<Void> f = js.runWhenScanFinished(this, true);
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} catch (IOException ex) {
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Exceptions.printStackTrace(ex);
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public synchronized boolean accept(CodeTemplate template) {
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return ctx != null && getTemplateContexts(template).contains(ctx);
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public synchronized void run(CompilationController controller) throws IOException {
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controller.toPhase(Phase.PARSED);
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Tree tree = controller.getTreeUtilities().pathFor(startOffset).getLeaf();
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if (endOffset >= 0 && startOffset != endOffset) {
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if (controller.getTreeUtilities().pathFor(endOffset).getLeaf() != tree)
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private EnumSet<Tree.Kind> getTemplateContexts(CodeTemplate template) {
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List<String> contexts = template.getContexts();
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List<Tree.Kind> kinds = new ArrayList<Tree.Kind>();
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if (contexts != null) {
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for(String ctx : contexts) {
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Tree.Kind kind = Tree.Kind.valueOf(ctx);
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LOG.warning("Invalid code template context '" + ctx + "', ignoring."); //NOI18N
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if (kinds.size() > 0) {
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return EnumSet.copyOf(kinds);
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return EnumSet.noneOf(Tree.Kind.class);
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public static final class Factory implements CodeTemplateFilter.Factory {
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public CodeTemplateFilter createFilter(JTextComponent component, int offset) {
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return new JavaCodeTemplateFilter(component, offset);