tikhomirov@295: /*
tikhomirov@388:  * Copyright (c) 2011-2012 TMate Software Ltd
tikhomirov@295:  *  
tikhomirov@295:  * This program is free software; you can redistribute it and/or modify
tikhomirov@295:  * it under the terms of the GNU General Public License as published by
tikhomirov@295:  * the Free Software Foundation; version 2 of the License.
tikhomirov@295:  *
tikhomirov@295:  * This program is distributed in the hope that it will be useful,
tikhomirov@295:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
tikhomirov@295:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
tikhomirov@295:  * GNU General Public License for more details.
tikhomirov@295:  *
tikhomirov@295:  * For information on how to redistribute this software under
tikhomirov@295:  * the terms of a license other than GNU General Public License
tikhomirov@295:  * contact TMate Software at support@hg4j.com
tikhomirov@295:  */
tikhomirov@295: package org.tmatesoft.hg.internal;
tikhomirov@295: 
tikhomirov@388: import java.util.Collections;
tikhomirov@388: import java.util.Map;
tikhomirov@388: 
tikhomirov@295: import org.tmatesoft.hg.core.SessionContext;
tikhomirov@295: import org.tmatesoft.hg.util.LogFacility;
tikhomirov@295: 
tikhomirov@295: /**
tikhomirov@295:  *
tikhomirov@295:  * @author Artem Tikhomirov
tikhomirov@295:  * @author TMate Software Ltd.
tikhomirov@295:  */
tikhomirov@295: public class BasicSessionContext implements SessionContext {
tikhomirov@295: 
tikhomirov@407: 	private LogFacility logFacility;
tikhomirov@388: 	private final Map<String, Object> properties;
tikhomirov@295: 	
tikhomirov@431: 	public BasicSessionContext(LogFacility log) {
tikhomirov@431: 		this(null, log);
tikhomirov@388: 	}
tikhomirov@388: 	
tikhomirov@388: 	@SuppressWarnings("unchecked")
tikhomirov@431: 	public BasicSessionContext(Map<String,?> propertyOverrides, LogFacility log) {
tikhomirov@407: 		logFacility = log;
tikhomirov@388: 		properties = propertyOverrides == null ? Collections.<String,Object>emptyMap() : (Map<String, Object>) propertyOverrides;
tikhomirov@295: 	}
tikhomirov@295: 
tikhomirov@295: 	public LogFacility getLog() {
tikhomirov@295: 		// e.g. for exceptions that we can't handle but log (e.g. FileNotFoundException when we've checked beforehand file.canRead()
tikhomirov@407: 		if (logFacility == null) {
tikhomirov@407: 			boolean needDebug = _getBooleanProperty("hg.consolelog.debug", false);
tikhomirov@407: 			boolean needInfo = needDebug || _getBooleanProperty("hg.consolelog.info", false);
tikhomirov@407: 			logFacility = new StreamLogFacility(needDebug, needInfo, true, System.out);
tikhomirov@407: 		}
tikhomirov@295: 		return logFacility;
tikhomirov@295: 	}
tikhomirov@407: 	
tikhomirov@407: 	private boolean _getBooleanProperty(String name, boolean defaultValue) {
tikhomirov@407: 		// can't use <T> and unchecked cast because got no confidence passed properties are strictly of the kind of my default values,
tikhomirov@407: 		// i.e. if boolean from outside comes as "true", while I pass default as Boolean or vice versa.  
tikhomirov@407: 		Object p = getProperty(name, defaultValue);
tikhomirov@407: 		return p instanceof Boolean ? ((Boolean) p).booleanValue() : Boolean.parseBoolean(String.valueOf(p));
tikhomirov@407: 	}
tikhomirov@295: 
tikhomirov@407: 	// TODO specific helpers for boolean and int values
tikhomirov@338: 	public Object getProperty(String name, Object defaultValue) {
tikhomirov@407: 		// NOTE, this method is invoked from getLog(), hence do not call getLog from here unless changed appropriately
tikhomirov@388: 		Object value = properties.get(name);
tikhomirov@388: 		if (value != null) {
tikhomirov@388: 			return value;
tikhomirov@388: 		}
tikhomirov@388: 		value = System.getProperty(name);
tikhomirov@338: 		return value == null ? defaultValue : value;
tikhomirov@338: 	}
tikhomirov@295: }