Mega Code Archive
Parses a time period into a long Translates possible [msecsecminh] suffixes
<![CDATA[
import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLDecoder;
import java.util.Map;
/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
public class Main{
/** Millisecond conversion constants */
private static final long MSEC = 1;
private static final long SECS = 1000;
private static final long MINS = 60 * 1000;
private static final long HOUR = 60 * 60 * 1000;
/**
* Parses a time period into a long.
*
* Translates possible [msec|sec|min|h] suffixes
*
* For example:
* "1" -> 1 (msec)
* "1msec -> 1 (msec)
* "1sec" -> 1000 (msecs)
* "1min" -> 60000 (msecs)
* "1h" -> 3600000 (msecs)
*
* Accepts negative periods, e.g. "-1"
*
* @param period the stringfied time period
* @return the parsed time period as long
* @throws NumberFormatException
*/
public static long parseTimePeriod(String period)
{
try
{
String s = period.toLowerCase();
long factor;
// look for suffix
if (s.endsWith("msec"))
{
s = s.substring(0, s.lastIndexOf("msec"));
factor = MSEC;
}
else if (s.endsWith("sec"))
{
s = s.substring(0, s.lastIndexOf("sec"));
factor = SECS;
}
else if (s.endsWith("min"))
{
s = s.substring(0, s.lastIndexOf("min"));
factor = MINS;
}
else if (s.endsWith("h"))
{
s = s.substring(0, s.lastIndexOf("h"));
factor = HOUR;
}
else
{
factor = 1;
}
return Long.parseLong(s) * factor;
}
catch (RuntimeException e)
{
// thrown in addition when period is 'null'
throw new NumberFormatException("For input time period: '" + period + "'");
}
}
/**
* Same like parseTimePeriod(), but guards for negative entries.
*
* @param period the stringfied time period
* @return the parsed time period as long
* @throws NumberFormatException
*/
public static long parsePositiveTimePeriod(String period)
{
long retval = parseTimePeriod(period);
if (retval < 0)
{
throw new NumberFormatException("Negative input time period: '" + period + "'");
}
return retval;
}
}
]]>