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annotate src/org/tmatesoft/hg/internal/BasicSessionContext.java @ 440:299870249a28

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Issue 30: bogus IOException for mmap file on linux
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 19 Apr 2012 19:18:25 +0200
parents 12f668401613
children 909306e412e2
rev   line source
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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
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25 /**
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26 *
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27 * @author Artem Tikhomirov
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28 * @author TMate Software Ltd.
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29 */
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30 public class BasicSessionContext implements SessionContext {
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31
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32 private LogFacility logFacility;
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33 private final Map<String, Object> properties;
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34
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35 public BasicSessionContext(LogFacility log) {
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36 this(null, log);
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37 }
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39 @SuppressWarnings("unchecked")
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40 public BasicSessionContext(Map<String,?> propertyOverrides, LogFacility log) {
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41 logFacility = log;
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42 properties = propertyOverrides == null ? Collections.<String,Object>emptyMap() : (Map<String, Object>) propertyOverrides;
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43 }
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45 public LogFacility getLog() {
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46 // 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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47 if (logFacility == null) {
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48 boolean needDebug = _getBooleanProperty("hg.consolelog.debug", false);
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49 boolean needInfo = needDebug || _getBooleanProperty("hg.consolelog.info", false);
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50 logFacility = new StreamLogFacility(needDebug, needInfo, true, System.out);
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51 }
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52 return logFacility;
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53 }
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54
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55 private boolean _getBooleanProperty(String name, boolean defaultValue) {
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56 // 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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57 // i.e. if boolean from outside comes as "true", while I pass default as Boolean or vice versa.
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58 Object p = getProperty(name, defaultValue);
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59 return p instanceof Boolean ? ((Boolean) p).booleanValue() : Boolean.parseBoolean(String.valueOf(p));
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60 }
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62 // TODO specific helpers for boolean and int values
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63 public Object getProperty(String name, Object defaultValue) {
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64 // NOTE, this method is invoked from getLog(), hence do not call getLog from here unless changed appropriately
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65 Object value = properties.get(name);
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66 if (value != null) {
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67 return value;
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68 }
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69 value = System.getProperty(name);
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70 return value == null ? defaultValue : value;
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71 }
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72 }