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annotate src/org/tmatesoft/hg/util/PathRewrite.java @ 621:99ad1e3a4e4d

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RevlogStream: be aware of existence (not HgDataFile), facilitate use of an added HgDataFile over a commit; Rollback: be more sensitive about file changes (file size is not enough: write/rollback leaves it intact); tests
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Sat, 18 May 2013 22:23:57 +0200
parents a415fe296a50
children
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1 /*
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2 * Copyright (c) 2011 TMate Software Ltd
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; version 2 of the License.
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7 *
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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12 *
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13 * For information on how to redistribute this software under
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14 * the terms of a license other than GNU General Public License
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a3a2e5deb320 Updated contact address to support@hg4j.com
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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.util;
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19 import java.util.LinkedList;
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20 import java.util.List;
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22 /**
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23 * File names often need transformations, like Windows-style path to Unix or human-readable data file name to storage location.
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24 *
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25 * @author Artem Tikhomirov
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26 * @author TMate Software Ltd.
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27 */
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28 public interface PathRewrite {
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30 public CharSequence rewrite(CharSequence path);
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32 public static class Empty implements PathRewrite {
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33 public CharSequence rewrite(CharSequence path) {
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34 return path;
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35 }
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36 }
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38 public class Composite implements PathRewrite {
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39 private List<PathRewrite> chain;
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41 public Composite(PathRewrite... e) {
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42 LinkedList<PathRewrite> r = new LinkedList<PathRewrite>();
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43 for (int i = 0; e != null && i < e.length; i++) {
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44 r.addLast(e[i]);
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45 }
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46 chain = r;
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47 }
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48 public Composite chain(PathRewrite e) {
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49 chain.add(e);
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50 return this;
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51 }
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53 public CharSequence rewrite(CharSequence path) {
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54 for (PathRewrite pr : chain) {
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55 path = pr.rewrite(path);
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56 }
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57 return path;
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58 }
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59 }
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60 }