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annotate src/org/tmatesoft/hg/internal/BasicSessionContext.java @ 430:d280759c2a3f

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branch information is not directly related to dirstate, clean API from this dependency
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 29 Mar 2012 18:48:23 +0200
parents 30922c728341
children 12f668401613
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1 /*
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2 * Copyright (c) 2011-2012 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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18
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19 import java.util.Collections;
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20 import java.util.Map;
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21
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22 import org.tmatesoft.hg.core.SessionContext;
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23 import org.tmatesoft.hg.util.LogFacility;
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24 import org.tmatesoft.hg.util.PathPool;
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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 *
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29 * @author Artem Tikhomirov
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30 * @author TMate Software Ltd.
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31 */
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32 public class BasicSessionContext implements SessionContext {
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33
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34 private PathPool pathPool;
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35 private LogFacility logFacility;
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36 private final Map<String, Object> properties;
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38 public BasicSessionContext(PathPool pathFactory, LogFacility log) {
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39 this(null, pathFactory, log);
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40 }
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42 @SuppressWarnings("unchecked")
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43 public BasicSessionContext(Map<String,?> propertyOverrides, PathPool pathFactory, LogFacility log) {
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44 pathPool = pathFactory;
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45 logFacility = log;
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46 properties = propertyOverrides == null ? Collections.<String,Object>emptyMap() : (Map<String, Object>) propertyOverrides;
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47 }
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48
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49 public PathPool getPathPool() {
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50 if (pathPool == null) {
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51 pathPool = new PathPool(new PathRewrite.Empty());
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52 }
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53 return pathPool;
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54 }
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55
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56 public LogFacility getLog() {
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57 // e.g. for exceptions that we can't handle but log (e.g. FileNotFoundException when we've checked beforehand file.canRead()
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58 if (logFacility == null) {
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59 boolean needDebug = _getBooleanProperty("hg.consolelog.debug", false);
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60 boolean needInfo = needDebug || _getBooleanProperty("hg.consolelog.info", false);
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61 logFacility = new StreamLogFacility(needDebug, needInfo, true, System.out);
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62 }
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63 return logFacility;
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64 }
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65
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66 private boolean _getBooleanProperty(String name, boolean defaultValue) {
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67 // can't use <T> and unchecked cast because got no confidence passed properties are strictly of the kind of my default values,
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68 // i.e. if boolean from outside comes as "true", while I pass default as Boolean or vice versa.
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69 Object p = getProperty(name, defaultValue);
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70 return p instanceof Boolean ? ((Boolean) p).booleanValue() : Boolean.parseBoolean(String.valueOf(p));
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71 }
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72
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73 // TODO specific helpers for boolean and int values
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74 public Object getProperty(String name, Object defaultValue) {
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75 // NOTE, this method is invoked from getLog(), hence do not call getLog from here unless changed appropriately
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76 Object value = properties.get(name);
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77 if (value != null) {
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78 return value;
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79 }
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80 value = System.getProperty(name);
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81 return value == null ? defaultValue : value;
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82 }
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83 }