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: package org.netbeans.modules.web.jsf.refactoring;
042:
043: import java.io.IOException;
044: import java.lang.ref.WeakReference;
045: import org.netbeans.modules.refactoring.spi.SimpleRefactoringElementImplementation;
046: import org.netbeans.modules.web.jsf.refactoring.Modifications.Difference;
047: import org.openide.filesystems.FileObject;
048: import org.openide.text.PositionBounds;
049: import org.openide.util.Exceptions;
050: import org.openide.util.Lookup;
051: import org.openide.util.lookup.Lookups;
052:
053: /**
054: *
055: * @author Petr Pisl
056: */
057: public abstract class DiffElement extends
058: SimpleRefactoringElementImplementation {
059: private final Difference diff;
060: private final Modifications modification;
061: private WeakReference<String> newFileContent;
062: private final FileObject parentFile;
063:
064: public DiffElement(Difference diff, FileObject parentFile,
065: Modifications modification) {
066: this .diff = diff;
067: this .modification = modification;
068: this .parentFile = parentFile;
069: }
070:
071: public String getDisplayText() {
072: return diff.getDesription();
073: }
074:
075: public String getText() {
076: return diff.getDesription();
077: }
078:
079: public Lookup getLookup() {
080: return Lookups.fixed(parentFile, diff);
081: }
082:
083: public void setEnabled(boolean enabled) {
084: diff.setExclude(!enabled);
085: newFileContent = null;
086: super .setEnabled(enabled);
087: }
088:
089: public FileObject getParentFile() {
090: return parentFile;
091: }
092:
093: @Override
094: protected String getNewFileContent() {
095: String result;
096: if (newFileContent != null) {
097: result = newFileContent.get();
098: if (result != null)
099: return result;
100: }
101: try {
102: result = modification.getResultingSource(parentFile);
103: } catch (IOException ex) {
104: Exceptions.printStackTrace(ex);
105: return null;
106: }
107: newFileContent = new WeakReference(result);
108: return result;
109: }
110:
111: public static class ChangeFQCNElement extends DiffElement {
112: private final Occurrences.OccurrenceItem occurence;
113:
114: public ChangeFQCNElement(Difference diff,
115: Occurrences.OccurrenceItem occurence,
116: Modifications modification) {
117: super (diff, occurence.getFacesConfig(), modification);
118: this .occurence = occurence;
119: }
120:
121: public void performChange() {
122: occurence.performChange();
123: }
124:
125: @Override
126: public void undoChange() {
127: occurence.undoChange();
128: }
129:
130: public PositionBounds getPosition() {
131: return occurence.getChangePosition();
132: }
133: }
134: }
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