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: /**
043: *
044: */package org.netbeans.modules.uml.project.ui;
045:
046: import java.io.IOException;
047: import java.util.Iterator;
048: import java.util.Vector;
049:
050: import org.netbeans.api.project.SourceGroup;
051: import org.openide.filesystems.Repository;
052: import org.openide.filesystems.FileSystem;
053: import org.openide.filesystems.FileObject;
054: import org.openide.loaders.DataObject;
055: import org.openide.loaders.DataObjectNotFoundException;
056: import org.openide.cookies.InstanceCookie;
057:
058: import org.netbeans.modules.uml.core.support.umlsupport.Log;
059:
060: /**
061: * @author alagud
062: *
063: */
064: public class MDREventProcessor {
065: Vector<IMDRListener> listener = new Vector<IMDRListener>();
066: private static MDREventProcessor instance = null;
067:
068: private MDREventProcessor() {
069: Log.out("MDREventProcessor instance Created");
070: }
071:
072: public static MDREventProcessor getInstance() {
073: if (instance == null)
074: instance = new MDREventProcessor();
075:
076: return instance;
077: }
078:
079: public void fireChanged(SourceGroup[] oldValue,
080: SourceGroup[] newValue) {
081: FileSystem system = Repository.getDefault()
082: .getDefaultFileSystem();
083:
084: try {
085: if (system != null) {
086: FileObject lookupDir = system
087: .findResource("uml/source-roots-listeners");
088: if (lookupDir != null) {
089: FileObject[] children = lookupDir.getChildren();
090: for (FileObject curObj : children) {
091: try {
092: DataObject dObj = DataObject.find(curObj);
093: if (dObj != null) {
094: InstanceCookie cookie = (InstanceCookie) dObj
095: .getCookie(InstanceCookie.class);
096:
097: if (cookie != null) {
098: Object obj = cookie
099: .instanceCreate();
100:
101: if (obj instanceof IMDRListener) {
102: IMDRListener listener = (IMDRListener) obj;
103: if (oldValue != null) {
104: listener
105: .removeJMI(oldValue);
106: }
107:
108: if (newValue != null) {
109: listener
110: .registerJMI(newValue);
111: }
112: }
113: }
114: } // dObj != null
115: }
116:
117: catch (ClassNotFoundException e) {
118: // Unable to create the instance for some reason. So the
119: // do not worry about adding the instance to the list.
120: }
121: } // for-each FileObject
122: } // if lookupDir != null
123: } // if system != null
124: } catch (DataObjectNotFoundException e) {
125: // Basically Bail at this time.
126: } catch (IOException ioE) {
127:
128: }
129: }
130:
131: }
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