001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.netbeans.modules.php.project;
043:
044: import java.beans.PropertyChangeEvent;
045: import java.beans.PropertyChangeListener;
046: import java.nio.charset.Charset;
047: import java.nio.charset.IllegalCharsetNameException;
048: import org.netbeans.spi.project.support.ant.PropertyEvaluator;
049: import org.netbeans.spi.queries.FileEncodingQueryImplementation;
050: import org.openide.filesystems.FileObject;
051:
052: /**
053: * copied from ruby project
054: * @author Tomas Zezula
055: */
056: public class PhpProjectEncodingQueryImpl extends
057: FileEncodingQueryImplementation implements
058: PropertyChangeListener {
059:
060: private final PropertyEvaluator eval;
061: private Charset cache;
062:
063: /** Creates a new instance of J2SEProjectEncodingQueryImpl */
064: public PhpProjectEncodingQueryImpl(final PropertyEvaluator eval) {
065: assert eval != null;
066: this .eval = eval;
067: this .eval.addPropertyChangeListener(this );
068: }
069:
070: public Charset getEncoding(FileObject file) {
071: assert file != null;
072: synchronized (this ) {
073: if (cache != null) {
074: return cache;
075: }
076: }
077: String enc = eval.getProperty(PhpProject.SOURCE_ENCODING);
078: synchronized (this ) {
079: if (cache == null) {
080: try {
081: //From discussion with K. Frank the project returns Charset.defaultCharset ()
082: //for older projects (no encoding property). The old project used system encoding => Charset.defaultCharset ()
083: //should work for most users.
084: cache = enc == null ? Charset.defaultCharset()
085: : Charset.forName(enc);
086: } catch (IllegalCharsetNameException exception) {
087: return null;
088: }
089: }
090: return cache;
091: }
092: }
093:
094: public void propertyChange(PropertyChangeEvent event) {
095: String propName = event.getPropertyName();
096: if (propName == null
097: || propName.equals(PhpProject.SOURCE_ENCODING)) {
098: synchronized (this) {
099: cache = null;
100: }
101: }
102: }
103:
104: }
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