3 import jalview.bin.Cache;
7 public class BackupFilenameParts
11 private String templateStart;
17 private String templateEnd;
19 private boolean isBackupFile;
21 private BackupFilenameParts()
23 this.isBackupFile = false;
26 public BackupFilenameParts(File file, String base, String template,
29 this(file.getName(), base, template, digits);
32 public BackupFilenameParts(String filename, String base, String template,
35 this(filename, base, template, suggesteddigits, false);
38 public BackupFilenameParts(String filename, String base, String template,
39 int suggesteddigits, boolean extensionMatch)
41 this.isBackupFile = false;
43 int numcharstart = template.indexOf(BackupFiles.NUM_PLACEHOLDER);
45 String templateStart = template;
46 String templateEnd = "";
47 if (numcharstart > -1)
49 templateStart = template.substring(0, numcharstart);
50 templateEnd = template.substring(
51 numcharstart + BackupFiles.NUM_PLACEHOLDER.length());
52 digits = suggesteddigits;
55 String savedFilename = "";
56 // if extensionOnly is set then reset the filename to the last occurrence of the extension+templateStart and try the match
59 // only trying to match from extension onwards
61 int extensioncharstart = filename
62 .lastIndexOf('.' + base + templateStart);
63 if (extensioncharstart == -1)
68 savedFilename = filename.substring(0, extensioncharstart + 1); // include
70 filename = filename.substring(extensioncharstart + 1);
73 // full filename match
75 // calculate minimum length of a backup filename
76 int minlength = base.length() + template.length()
77 - BackupFiles.NUM_PLACEHOLDER.length() + digits;
79 if (!(filename.startsWith(base + templateStart)
80 && filename.endsWith(templateEnd)
81 && filename.length() >= minlength))
87 int startLength = base.length() + templateStart.length();
88 int endLength = templateEnd.length();
89 String numString = numcharstart > -1
90 ? filename.substring(startLength, filename.length() - endLength)
93 if (filename.length() >= startLength + digits + endLength
94 && filename.startsWith(base + templateStart)
95 && filename.endsWith(templateEnd)
96 && numString.matches("[0-9]*"))
98 this.base = extensionMatch ? savedFilename + base : base;
99 this.templateStart = templateStart;
100 this.num = numString.length() > 0 ? Integer.parseInt(numString) : 0;
101 this.digits = digits;
102 this.templateEnd = templateEnd;
103 this.isBackupFile = true;
108 public static BackupFilenameParts currentBackupFilenameParts(
109 String filename, String base, boolean extensionMatch)
111 BackupFilenameParts bfp = new BackupFilenameParts();
112 String template = Cache.getDefault(BackupFiles.SUFFIX, null);
113 if (template == null)
121 .parseInt(Cache.getDefault(BackupFiles.SUFFIX_DIGITS, null));
122 } catch (Exception e)
126 return new BackupFilenameParts(filename, base, template, digits,
130 public boolean isBackupFile()
132 return this.isBackupFile;
135 public int indexNum()
140 public static String getBackupFilename(int index, String base,
141 String template, int digits)
143 String numString = String.format("%0" + digits + "d", index);
144 String backupSuffix = template.replaceFirst(BackupFiles.NUM_PLACEHOLDER,
146 String backupfilename = base + backupSuffix;
147 return backupfilename;