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: package org.netbeans.tax;
042:
043: import java.util.ResourceBundle;
044: import java.text.MessageFormat;
045:
046: /**
047: *
048: * @author Libor Kramolis
049: * @version 0.2
050: */
051: public abstract class AbstractUtil {
052: /** Cached isLoggable value. */
053: private boolean loggable;
054: /** Has loggable already been initialized. */
055: private boolean loggableInit = false;
056: /** Package resource bundle. */
057: private ResourceBundle bundle;
058:
059: /**
060: * Kind of equals that treat null-ed object as equvivalent.
061: * Suitable while testing for property equalence before firing.
062: * return true if these are same
063: */
064: public static boolean equals(Object a, Object b) {
065: if (a != null) {
066: return (a.equals(b));
067: } else {
068: return (a == b);
069: }
070: }
071:
072: /**
073: * Just for debugging purposes.
074: */
075: public final void debug(String message, Throwable ex) {
076: if (isLoggable()) {
077: System.err.println("[org.netbeans.tax] " + message);
078: if (ex != null) {
079: ex.printStackTrace(System.err);
080: }
081: }
082: }
083:
084: /**
085: * Just for debugging purposes.
086: */
087: public final void debug(String message) {
088: debug(message, null);
089: }
090:
091: /**
092: * Just for debugging purposes.
093: */
094: public final void debug(Throwable ex) {
095: debug(ex.getMessage(), ex);
096: }
097:
098: /** Test if <code>debug (...)</code> will log something.
099: */
100: public final synchronized boolean isLoggable() {
101: if (loggableInit == false) {
102: loggable = Boolean.getBoolean("org.netbeans.tax"); // NOI18N
103: loggableInit = true;
104: }
105: return loggable;
106: }
107:
108: /**
109: * @return bundle for this instance package
110: */
111: protected final synchronized ResourceBundle getBundle() {
112: return ResourceBundle.getBundle(getClass().getName()
113: .replaceFirst("\\.[^.]+$", ".Bundle")); // NOI18N
114: }
115:
116: /** Get localized string.
117: * @param key key of localized value.
118: * @return localized value.
119: */
120: public final String getString(String key) {
121: return getBundle().getString(key);
122: }
123:
124: /** Get localized string by passing parameter.
125: * @param key key of localized value.
126: * @param param argument to use when formating the message
127: * @return localized value.
128: */
129: public final String getString(String key, Object param) {
130: return MessageFormat.format(getBundle().getString(key),
131: new Object[] { param });
132: }
133:
134: /** Get localized character. Usually used on mnemonic.
135: * @param key key of localized value.
136: * @return localized value.
137: */
138: public final char getChar(String key) {
139: return getString(key).charAt(0);
140: }
141:
142: }
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