1
22
23 package com.liferay.portlet.mail.util.comparator;
24
25 import com.liferay.portal.kernel.util.DateUtil;
26 import com.liferay.portal.kernel.util.GetterUtil;
27 import com.liferay.portlet.mail.model.MailEnvelope;
28
29 import java.util.Comparator;
30
31
37 public class SubjectComparator implements Comparator {
38
39 public SubjectComparator(boolean asc) {
40 _asc = asc;
41 }
42
43 public int compare(Object obj1, Object obj2) {
44 MailEnvelope mailEvenlope1 = (MailEnvelope)obj1;
45 MailEnvelope mailEvenlope2 = (MailEnvelope)obj2;
46
47 String subject1 = _getSubject(mailEvenlope1.getSubject());
48 String subject2 = _getSubject(mailEvenlope2.getSubject());
49
50 int value = subject1.compareTo(subject2);
51
52 if (value == 0) {
53 value = DateUtil.compareTo(
54 mailEvenlope1.getDate(), mailEvenlope2.getDate());
55 }
56
57 if (value == 0) {
58 Long messageId1 = new Long(mailEvenlope1.getMessageId());
59 Long messageId2 = new Long(mailEvenlope2.getMessageId());
60
61 value = messageId1.compareTo(messageId2);
62 }
63
64 if (_asc) {
65 return value;
66 }
67 else {
68 return -value;
69 }
70 }
71
72 private String _getSubject(String subject) {
73 subject = GetterUtil.getString(subject).toLowerCase();
74
75 while (subject.startsWith("re:") || subject.startsWith("re>") ||
76 subject.startsWith("fw:") || subject.startsWith("fw>")) {
77
78 subject = subject.substring(3).trim();
79 }
80
81 return subject;
82 }
83
84 private boolean _asc;
85
86 }