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Java > Open Source Codes > org > eclipse > team > internal > ccvs > ui > CVSHistorySearchFilter


1 /*******************************************************************************
2  * Copyright (c) 2006 IBM Corporation and others.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Eclipse Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/epl-v10.html
7  *
8  * Contributors:
9  * IBM Corporation - initial API and implementation
10  *******************************************************************************/
11 package org.eclipse.team.internal.ccvs.ui;
12
13 import java.util.*;
14
15 import org.eclipse.jface.viewers.Viewer;
16 import org.eclipse.jface.viewers.ViewerFilter;
17 import org.eclipse.team.core.history.ITag;
18 import org.eclipse.team.internal.ccvs.core.filehistory.CVSFileRevision;
19 import org.eclipse.team.internal.ui.history.AbstractHistoryCategory;
20
21 public class CVSHistorySearchFilter extends org.eclipse.jface.viewers.ViewerFilter {
22
23     public String JavaDoc searchString;
24     private int matchCounter;
25     public ArrayList searchStrings;
26
27     public CVSHistorySearchFilter(String JavaDoc searchStrings) {
28         this.searchString = searchStrings;
29     }
30
31     /**
32      * @see ViewerFilter#select(Viewer, Object, Object)
33      */
34     public boolean select(Viewer aviewer, Object JavaDoc parentElement, Object JavaDoc element) {
35         if (element instanceof AbstractHistoryCategory)
36             return true;
37
38         if (element instanceof CVSFileRevision) {
39             StringTokenizer tokenizer = new StringTokenizer(searchString);
40             searchStrings = new ArrayList();
41             while (tokenizer.hasMoreElements()) {
42                 searchStrings.add(tokenizer.nextToken());
43             }
44
45             CVSFileRevision entry = (CVSFileRevision) element;
46             //empty fields should be considered a non-match
47 boolean orSearch = (authorMatch(entry)) || (dateMatch(entry)) || (commentMatch(entry) || revisionMatch(entry) || tagMatch(entry));
48             if (orSearch)
49                 matchCounter++;
50             return orSearch;
51         }
52         return false;
53     }
54
55     protected boolean authorMatch(CVSFileRevision revision) {
56         String JavaDoc author = revision.getAuthor();
57         if (author != null){
58             Iterator iter = searchStrings.iterator();
59             while (iter.hasNext()) {
60                 String JavaDoc nextString = (String JavaDoc) iter.next();
61                 if (!((author.indexOf(nextString)) == -1))
62                     return true;
63             }
64         }
65         return false;
66     }
67
68     protected boolean commentMatch(CVSFileRevision revision) {
69         String JavaDoc comment = revision.getComment().toLowerCase();
70         if (comment != null) {
71             Iterator iter = searchStrings.iterator();
72             while (iter.hasNext()) {
73                 if (!(comment.indexOf(((String JavaDoc) iter.next()).toLowerCase()) == -1))
74                     return true;
75             }
76         }
77         return false;
78     }
79
80     protected boolean dateMatch(CVSFileRevision revision) {
81         //No dates for now
82 /*String date = DateFormat.getInstance().format(new Date(revision.getTimestamp()));
83          Iterator iter = searchStrings.iterator();
84          while (iter.hasNext()){
85          if (!(date.indexOf(((String) iter.next()).toLowerCase()) == -1))
86          return true;
87          }*/
88
89         return false;
90     }
91     
92     protected boolean tagMatch(CVSFileRevision revision) {
93         ITag[] tags = revision.getTags();
94         for (int i = 0; i < tags.length; i++) {
95             String JavaDoc tag = tags[i].getName().toLowerCase();
96             Iterator iter = searchStrings.iterator();
97             while (iter.hasNext()) {
98                 if (!(tag.indexOf(((String JavaDoc) iter.next()).toLowerCase()) == -1))
99                     return true;
100             }
101         }
102         
103         return false;
104     }
105
106     protected boolean revisionMatch(CVSFileRevision revision) {
107         String JavaDoc rev = revision.getContentIdentifier();
108         if (rev != null) {
109             Iterator iter = searchStrings.iterator();
110             while (iter.hasNext()) {
111                 if (!(rev.indexOf(((String JavaDoc) iter.next()).toLowerCase()) == -1))
112                     return true;
113             }
114         }
115         return false;
116     }
117
118     
119     public int getMatchCount() {
120         return matchCounter;
121     }
122
123 }
124
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