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.insane.impl;
043:
044: import java.lang.reflect.Field;
045: import java.lang.reflect.Modifier;
046: import java.util.Arrays;
047:
048: /**
049: *
050: * @author nenik
051: */
052: public abstract class Root {
053:
054: private Root() {
055: }
056:
057: public abstract String describe();
058:
059: public abstract Object getObject();
060:
061: public static Root createNamed(String name, Object ref) {
062: return new Named(name, ref);
063: }
064:
065: public static Root createStatic(Field f, Object ref) {
066: return new Static(f, ref);
067:
068: }
069:
070: private static class Named extends Root {
071: private String name;
072: private Object ref;
073:
074: Named(String name, Object ref) {
075: if (ref == null)
076: new Exception().printStackTrace();
077: this .ref = ref;
078: this .name = name;
079: }
080:
081: public Object getObject() {
082: return ref;
083: }
084:
085: public String describe() {
086: return name;
087: }
088: }
089:
090: private static class Static extends Root {
091: private Class cls;
092: private int i;
093:
094: Static(Field f, Object ref) {
095: assert ((f.getModifiers() & Modifier.STATIC) != 0);
096:
097: cls = f.getDeclaringClass();
098: i = Arrays.asList(cls.getDeclaredFields()).indexOf(f);
099: assert (i >= 0);
100: assert cls.getDeclaredFields()[i].equals(f);
101: }
102:
103: public String describe() {
104: return getField().toString();
105: }
106:
107: public Object getObject() {
108: try {
109: return getField().get(null);
110: } catch (Exception e) {
111: return null;
112: }
113: }
114:
115: private Field getField() {
116: return cls.getDeclaredFields()[i];
117: }
118: }
119:
120: }
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