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/*******************************************************************************
* Copyright (c) 2012, 2013 Ericsson
*
* All rights reserved. This program and the accompanying materials are
* made available under the terms of the Eclipse Public License v1.0 which
* accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Francois Chouinard - Initial API and implementation
* Marc-Andre Laperle - Add time zone preference
*******************************************************************************/
package org.eclipse.linuxtools.tmf.core.timestamp;
import java.util.HashMap;
import java.util.Map;
import java.util.TimeZone;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.preferences.DefaultScope;
import org.eclipse.core.runtime.preferences.IEclipsePreferences;
import org.eclipse.core.runtime.preferences.InstanceScope;
import org.eclipse.linuxtools.internal.tmf.core.Activator;
/**
* TMF Time format preferences
*
* @author Francois Chouinard
* @version 1.0
* @since 2.1
*/
public class TmfTimePreferences {
// ------------------------------------------------------------------------
// Constants
// ------------------------------------------------------------------------
private static final String DATIME_DEFAULT = ITmfTimePreferencesConstants.TIME_HOUR_FMT;
private static final String SUBSEC_DEFAULT = ITmfTimePreferencesConstants.SUBSEC_NANO_FMT;
private static final String DATE_DELIMITER_DEFAULT = ITmfTimePreferencesConstants.DELIMITER_DASH;
private static final String TIME_DELIMITER_DEFAULT = ITmfTimePreferencesConstants.DELIMITER_COLON;
private static final String SSEC_DELIMITER_DEFAULT = ITmfTimePreferencesConstants.DELIMITER_SPACE;
private static final String TIME_ZONE_DEFAULT = TimeZone.getDefault().getID();
// ------------------------------------------------------------------------
// Attributes
// ------------------------------------------------------------------------
private static TmfTimePreferences fPreferences;
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
/**
* Initialize the default preferences and the singleton
*/
public static void init() {
IEclipsePreferences defaultPreferences = DefaultScope.INSTANCE.getNode(Activator.PLUGIN_ID);
defaultPreferences.put(ITmfTimePreferencesConstants.DATIME, DATIME_DEFAULT);
defaultPreferences.put(ITmfTimePreferencesConstants.SUBSEC, SUBSEC_DEFAULT);
defaultPreferences.put(ITmfTimePreferencesConstants.DATE_DELIMITER, DATE_DELIMITER_DEFAULT);
defaultPreferences.put(ITmfTimePreferencesConstants.TIME_DELIMITER, TIME_DELIMITER_DEFAULT);
defaultPreferences.put(ITmfTimePreferencesConstants.SSEC_DELIMITER, SSEC_DELIMITER_DEFAULT);
defaultPreferences.put(ITmfTimePreferencesConstants.TIME_ZONE, TIME_ZONE_DEFAULT);
// Create the singleton and update default formats
getInstance();
}
/**
* Get the TmfTimePreferences singleton
*
* @return The TmfTimePreferences instance
*/
public static synchronized TmfTimePreferences getInstance() {
if (fPreferences == null) {
fPreferences = new TmfTimePreferences();
TmfTimestampFormat.updateDefaultFormats();
}
return fPreferences;
}
/**
* Local constructor
*/
private TmfTimePreferences() {
}
// ------------------------------------------------------------------------
// Getters/Setters
// ------------------------------------------------------------------------
/**
* Return the timestamp pattern
*
* @return the timestamp pattern
*/
public String getTimePattern() {
return computeTimePattern(getPreferenceMap(false));
}
/**
* Return the interval pattern
*
* @return the interval pattern
*/
public String getIntervalPattern() {
return computeIntervalPattern(getPreferenceMap(false));
}
/**
* Get the time zone
*
* @return the time zone
*/
public TimeZone getTimeZone() {
return TimeZone.getTimeZone(Platform.getPreferencesService().getString(Activator.PLUGIN_ID, ITmfTimePreferencesConstants.TIME_ZONE, TimeZone.getDefault().getID(), null));
}
/**
* Get the default preferences map
*
* @return a collection containing the default preferences
*/
public Map<String, String> getDefaultPreferenceMap() {
return getPreferenceMap(true);
}
/**
* Get the current preferences map
*
* @return a collection containing the current preferences
*/
public Map<String, String> getPreferenceMap() {
return getPreferenceMap(false);
}
private static Map<String, String> getPreferenceMap(boolean defaultValues) {
Map<String, String> prefsMap = new HashMap<String, String>();
IEclipsePreferences prefs = defaultValues ? DefaultScope.INSTANCE.getNode(Activator.PLUGIN_ID) : InstanceScope.INSTANCE.getNode(Activator.PLUGIN_ID);
prefToMap(prefs, prefsMap, ITmfTimePreferencesConstants.SUBSEC, SUBSEC_DEFAULT);
prefToMap(prefs, prefsMap, ITmfTimePreferencesConstants.TIME_DELIMITER, TIME_DELIMITER_DEFAULT);
prefToMap(prefs, prefsMap, ITmfTimePreferencesConstants.SSEC_DELIMITER, SSEC_DELIMITER_DEFAULT);
prefToMap(prefs, prefsMap, ITmfTimePreferencesConstants.DATIME, DATIME_DEFAULT);
prefToMap(prefs, prefsMap, ITmfTimePreferencesConstants.DATE_DELIMITER, DATE_DELIMITER_DEFAULT);
return prefsMap;
}
// ------------------------------------------------------------------------
// Operations
// ------------------------------------------------------------------------
private static String computeIntervalPattern(Map<String, String> prefsMap) {
String ssecFmt = computeSubSecFormat(prefsMap);
return ITmfTimePreferencesConstants.TIME_ELAPSED_FMT + "." + ssecFmt; //$NON-NLS-1$
}
private static String computeSubSecFormat(Map<String, String> prefsMap) {
String sSecFormat = prefsMap.get(ITmfTimePreferencesConstants.SUBSEC);
String sSecFieldSep = prefsMap.get(ITmfTimePreferencesConstants.SSEC_DELIMITER);
String ssecFmt = sSecFormat.replaceAll(" ", sSecFieldSep); //$NON-NLS-1$
return ssecFmt;
}
private static void prefToMap(IEclipsePreferences node, Map<String, String> prefsMap, String key, String defaultValue) {
prefsMap.put(key, node.get(key, defaultValue));
}
/**
* Compute the time pattern with the collection of preferences
*
* @param prefsMap the preferences to apply when computing the time pattern
* @return the time pattern resulting in applying the preferences
*/
public String computeTimePattern(Map<String, String> prefsMap) {
String dateTimeFormat = prefsMap.get(ITmfTimePreferencesConstants.DATIME);
if (dateTimeFormat == null) {
dateTimeFormat = ITmfTimePreferencesConstants.DEFAULT_TIME_PATTERN;
}
String dateFormat;
String timeFormat;
int index = dateTimeFormat.indexOf(' ');
if (index != -1) {
dateFormat = dateTimeFormat.substring(0, dateTimeFormat.indexOf(' ') + 1);
timeFormat = dateTimeFormat.substring(dateFormat.length());
} else {
dateFormat = ""; //$NON-NLS-1$
timeFormat = dateTimeFormat;
}
String dateFieldSep = prefsMap.get(ITmfTimePreferencesConstants.DATE_DELIMITER);
String timeFieldSep = prefsMap.get(ITmfTimePreferencesConstants.TIME_DELIMITER);
String dateFmt = dateFormat.replaceAll("-", dateFieldSep); //$NON-NLS-1$
String timeFmt = timeFormat.replaceAll(":", timeFieldSep); //$NON-NLS-1$
String ssecFmt = computeSubSecFormat(prefsMap);
return dateFmt + timeFmt + (ssecFmt.equals(ITmfTimePreferencesConstants.SUBSEC_NO_FMT) ? "" : '.' + ssecFmt); //$NON-NLS-1$;
}
}
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