annotate src/org/tmatesoft/hg/internal/Internals.java @ 198:33a7d76f067b

Performance optimization: reduce memory to keep revlog cached info
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 20 Apr 2011 05:40:14 +0200
parents 6b55f10ef54b
children 706bcc7cfee4
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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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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.internal;
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19 import static org.tmatesoft.hg.internal.RequiresFile.*;
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21 import java.util.ArrayList;
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22 import java.util.List;
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23
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24 import org.tmatesoft.hg.repo.HgRepository;
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25 import org.tmatesoft.hg.util.PathRewrite;
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26
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27 /**
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28 * Fields/members that shall not be visible
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29 *
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30 * @author Artem Tikhomirov
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31 * @author TMate Software Ltd.
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32 */
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33 public class Internals {
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34
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35 private int requiresFlags = 0;
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36 private List<Filter.Factory> filterFactories;
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38
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39 public Internals() {
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40 }
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42 public/*for tests, otherwise pkg*/ void setStorageConfig(int version, int flags) {
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43 requiresFlags = flags;
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44 }
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46 // XXX perhaps, should keep both fields right here, not in the HgRepository
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47 public PathRewrite buildDataFilesHelper() {
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48 return new StoragePathHelper((requiresFlags & STORE) != 0, (requiresFlags & FNCACHE) != 0, (requiresFlags & DOTENCODE) != 0);
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49 }
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51 public PathRewrite buildRepositoryFilesHelper() {
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52 if ((requiresFlags & STORE) != 0) {
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53 return new PathRewrite() {
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54 public String rewrite(String path) {
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55 return "store/" + path;
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56 }
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57 };
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58 } else {
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59 return new PathRewrite() {
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60 public String rewrite(String path) {
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61 //no-op
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62 return path;
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63 }
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64 };
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65 }
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66 }
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68 public ConfigFile newConfigFile() {
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69 return new ConfigFile();
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70 }
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72 public List<Filter.Factory> getFilters(HgRepository hgRepo, ConfigFile cfg) {
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73 if (filterFactories == null) {
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74 filterFactories = new ArrayList<Filter.Factory>();
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75 if (cfg.hasEnabledExtension("eol")) {
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76 NewlineFilter.Factory ff = new NewlineFilter.Factory();
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77 ff.initialize(hgRepo, cfg);
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78 filterFactories.add(ff);
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79 }
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80 if (cfg.hasEnabledExtension("keyword")) {
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81 KeywordFilter.Factory ff = new KeywordFilter.Factory();
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82 ff.initialize(hgRepo, cfg);
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83 filterFactories.add(ff);
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84 }
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85 }
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86 return filterFactories;
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87 }
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88 }