001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.tools.sourceformatter;
016    
017    import com.liferay.portal.kernel.util.NaturalOrderStringComparator;
018    import com.liferay.portal.kernel.util.StringUtil;
019    
020    import java.util.Comparator;
021    import java.util.List;
022    
023    /**
024     * @author Hugo Huijser
025     */
026    public class JavaTermComparator implements Comparator<JavaTerm> {
027    
028            public JavaTermComparator() {
029                    this(true);
030            }
031    
032            public JavaTermComparator(boolean ascending) {
033                    _ascending = ascending;
034            }
035    
036            @Override
037            public int compare(JavaTerm javaTerm1, JavaTerm javaTerm2) {
038                    int value = doCompare(javaTerm1, javaTerm2);
039    
040                    if (_ascending) {
041                            return value;
042                    }
043                    else {
044                            return -value;
045                    }
046            }
047    
048            protected int compareParameterTypes(
049                    JavaTerm javaTerm1, JavaTerm javaTerm2) {
050    
051                    List<String> parameterTypes2 = javaTerm2.getParameterTypes();
052    
053                    if (parameterTypes2.isEmpty()) {
054                            return 1;
055                    }
056    
057                    List<String> parameterTypes1 = javaTerm1.getParameterTypes();
058    
059                    if (parameterTypes1.isEmpty()) {
060                            return -1;
061                    }
062    
063                    for (int i = 0; i < parameterTypes1.size(); i++) {
064                            if (parameterTypes2.size() < (i + 1)) {
065                                    return 1;
066                            }
067    
068                            String parameterType1 = parameterTypes1.get(i);
069                            String parameterType2 = parameterTypes2.get(i);
070    
071                            if ((parameterTypes1.size() != parameterTypes2.size()) &&
072                                    (parameterType1.equals(parameterType2.concat("...")) ||
073                                     parameterType2.equals(parameterType1.concat("...")))) {
074    
075                                    continue;
076                            }
077    
078                            if (parameterType1.compareToIgnoreCase(parameterType2) != 0) {
079                                    return parameterType1.compareToIgnoreCase(parameterType2);
080                            }
081    
082                            if (parameterType1.compareTo(parameterType2) != 0) {
083                                    return -parameterType1.compareTo(parameterType2);
084                            }
085                    }
086    
087                    return -1;
088            }
089    
090            protected int doCompare(JavaTerm javaTerm1, JavaTerm javaTerm2) {
091                    int type1 = javaTerm1.getType();
092                    int type2 = javaTerm2.getType();
093    
094                    if (type1 != type2) {
095                            return type1 - type2;
096                    }
097    
098                    String name1 = javaTerm1.getName();
099                    String name2 = javaTerm2.getName();
100    
101                    if (javaTerm1.isVariable()) {
102                            if (StringUtil.isUpperCase(name1) &&
103                                    !StringUtil.isLowerCase(name1) &&
104                                    !StringUtil.isUpperCase(name2)) {
105    
106                                    return -1;
107                            }
108    
109                            if (!StringUtil.isUpperCase(name1) &&
110                                    StringUtil.isUpperCase(name2) &&
111                                    !StringUtil.isLowerCase(name2)) {
112    
113                                    return 1;
114                            }
115                    }
116    
117                    if (type1 == JavaTerm.TYPE_VARIABLE_PRIVATE_STATIC) {
118                            if (name2.equals("_log") || name2.equals("_logger")) {
119                                    return 1;
120                            }
121    
122                            if (name1.equals("_instance") || name1.equals("_log") ||
123                                    name1.equals("_logger")) {
124    
125                                    return -1;
126                            }
127    
128                            if (name2.equals("_instance")) {
129                                    return 1;
130                            }
131                    }
132    
133                    if (name1.compareToIgnoreCase(name2) != 0) {
134                            NaturalOrderStringComparator naturalOrderStringComparator =
135                                    new NaturalOrderStringComparator(true, false);
136    
137                            return naturalOrderStringComparator.compare(name1, name2);
138                    }
139    
140                    if (name1.compareTo(name2) != 0) {
141                            NaturalOrderStringComparator naturalOrderStringComparator =
142                                    new NaturalOrderStringComparator(true, true);
143    
144                            return -naturalOrderStringComparator.compare(name1, name2);
145                    }
146    
147                    return compareParameterTypes(javaTerm1, javaTerm2);
148            }
149    
150            private boolean _ascending;
151    
152    }