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 1997-2006 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.refactoring.spi;
043:
044: import org.netbeans.modules.refactoring.api.impl.ProgressSupport;
045: import org.netbeans.modules.refactoring.api.ProgressListener;
046:
047: /**
048: * Simple implementation of ProgressProvider
049: * @see ProgressProvider
050: * @author Jan Becicka
051: */
052: public class ProgressProviderAdapter implements ProgressProvider {
053:
054: private ProgressSupport progressSupport;
055:
056: /**
057: * Default constructor
058: */
059: protected ProgressProviderAdapter() {
060: }
061:
062: /** Registers ProgressListener to receive events.
063: * @param listener The listener to register.
064: *
065: */
066: public synchronized void addProgressListener(
067: ProgressListener listener) {
068: if (progressSupport == null) {
069: progressSupport = new ProgressSupport();
070: }
071: progressSupport.addProgressListener(listener);
072: }
073:
074: /** Removes ProgressListener from the list of listeners.
075: * @param listener The listener to remove.
076: *
077: */
078: public synchronized void removeProgressListener(
079: ProgressListener listener) {
080: if (progressSupport != null) {
081: progressSupport.removeProgressListener(listener);
082: }
083: }
084:
085: /** Notifies all registered listeners about the event.
086: *
087: * @param type Type of operation that is starting.
088: * @param count Number of steps the operation consists of.
089: *
090: */
091: protected final void fireProgressListenerStart(int type, int count) {
092: if (progressSupport != null)
093: progressSupport
094: .fireProgressListenerStart(this , type, count);
095: }
096:
097: /** Notifies all registered listeners about the event.
098: */
099: protected final void fireProgressListenerStep() {
100: if (progressSupport != null)
101: progressSupport.fireProgressListenerStep(this );
102: }
103:
104: /**
105: * Notifies all registered listeners about the event.
106: * @param count
107: */
108: protected final void fireProgressListenerStep(int count) {
109: if (progressSupport != null)
110: progressSupport.fireProgressListenerStep(this , count);
111: }
112:
113: /** Notifies all registered listeners about the event.
114: */
115: protected final void fireProgressListenerStop() {
116: if (progressSupport != null)
117: progressSupport.fireProgressListenerStop(this);
118: }
119: }
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