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: package org.netbeans.modules.cnd.modelimpl.csm.core;
043:
044: import org.netbeans.modules.cnd.api.model.CsmIdentifiable;
045: import org.netbeans.modules.cnd.api.model.CsmOffsetableDeclaration;
046: import org.netbeans.modules.cnd.api.model.CsmProject;
047: import org.netbeans.modules.cnd.api.model.CsmUID;
048: import org.netbeans.modules.cnd.api.model.util.*;
049: import org.netbeans.modules.cnd.utils.cache.CharSequenceKey;
050:
051: /**
052: *
053: * @author Alexander Simon
054: */
055: public final class PersistentKey {
056: private static final byte PROXY = 0;
057: private static final byte UID = 1;
058: private static final byte DECLARATION = 2;
059:
060: private Object key;
061: private CsmProject project;
062: private byte kind;
063:
064: private PersistentKey(CsmIdentifiable id) {
065: key = id;
066: kind = PROXY;
067: }
068:
069: private PersistentKey(CsmUID id) {
070: key = id;
071: kind = UID;
072: }
073:
074: private PersistentKey(CharSequence id, CsmProject host, byte type) {
075: key = id;
076: project = host;
077: kind = type;
078: }
079:
080: public static PersistentKey createKey(CsmOffsetableDeclaration decl) {
081: CharSequence name = decl.getName();
082: CharSequence uniq = decl.getUniqueName();
083: CsmProject project = decl.getContainingFile().getProject();
084: if (name.length() > 0 && uniq.toString().indexOf("::::") < 0
085: && project != null) { // NOI18N
086: return new PersistentKey(uniq, project, DECLARATION);
087: } else {
088: //System.out.println("Skip "+uniq);
089: }
090: return new PersistentKey(decl.getUID());
091: }
092:
093: public CsmIdentifiable getObject() {
094: switch (kind) {
095: case UID:
096: return (CsmIdentifiable) ((CsmUID) key).getObject();
097: case PROXY:
098: return (CsmIdentifiable) key;
099: case DECLARATION:
100: return project.findDeclaration((CharSequence) key);
101: }
102: return null;
103: }
104:
105: @Override
106: public boolean equals(Object object) {
107: if (object instanceof PersistentKey) {
108: PersistentKey what = (PersistentKey) object;
109: if (kind != what.kind) {
110: return false;
111: }
112: switch (kind) {
113: case PROXY:
114: case UID:
115: return key.equals(what.key);
116: case DECLARATION:
117: if (project.equals(what.project)) {
118: return CharSequenceKey.Comparator
119: .compare((CharSequence) key,
120: (CharSequence) what.key) == 0;
121: }
122: return false;
123: }
124: }
125: return super .equals(object);
126: }
127:
128: @Override
129: public int hashCode() {
130: switch (kind) {
131: case PROXY:
132: case UID:
133: return key.hashCode();
134: case DECLARATION:
135: return project.hashCode() ^ key.hashCode();
136: }
137: return super.hashCode();
138: }
139: }
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