Update of /cvsroot/jrobin/src/org/jrobin/core
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv13439/org/jrobin/core
Modified Files:
Util.java
Log Message:
Added two nice, simple methods to obtain timestamp(s) from (un)related at-style time specification(s)
Index: Util.java
===================================================================
RCS file: /cvsroot/jrobin/src/org/jrobin/core/Util.java,v
retrieving revision 1.31
retrieving revision 1.32
diff -C2 -d -r1.31 -r1.32
*** Util.java 23 Jan 2005 20:31:25 -0000 1.31
--- Util.java 17 Feb 2005 11:21:45 -0000 1.32
***************
*** 32,35 ****
--- 32,37 ----
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
+ import org.jrobin.core.timespec.TimeSpec;
+ import org.jrobin.core.timespec.TimeParser;
import javax.xml.parsers.ParserConfigurationException;
***************
*** 250,253 ****
--- 252,288 ----
}
+ /**
+ * Parses at-style time specification and returns the corresponding timestamp. For example:<p>
+ * <pre>
+ * long t = Util.getTimestamp("now-1d");
+ * </pre>
+ * @param atStyleTimeSpec at-style time specification. For the complete explanation of the syntax
+ * allowed see RRDTool's <code>rrdfetch</code> man page.<p>
+ * @return timestamp in seconds since epoch.
+ * @throws RrdException Thrown if invalid time specification is supplied.
+ */
+ public static long getTimestamp(String atStyleTimeSpec) throws RrdException {
+ TimeSpec timeSpec = new TimeParser(atStyleTimeSpec).parse();
+ return timeSpec.getTimestamp();
+ }
+
+ /**
+ * Parses two related at-style time specifications and returns corresponding timestamps. For example:<p>
+ * <pre>
+ * long[] t = Util.getTimestamps("end-1d","now");
+ * </pre>
+ * @param atStyleTimeSpec1 Starting at-style time specification. For the complete explanation of the syntax
+ * allowed see RRDTool's <code>rrdfetch</code> man page.<p>
+ * @param atStyleTimeSpec2 Ending at-style time specification. For the complete explanation of the syntax
+ * allowed see RRDTool's <code>rrdfetch</code> man page.<p>
+ * @return An array of two longs representing starting and ending timestamp in seconds since epoch.
+ * @throws RrdException Thrown if any input time specification is invalid.
+ */
+ public static long[] getTimestamps(String atStyleTimeSpec1, String atStyleTimeSpec2) throws RrdException {
+ TimeSpec timeSpec1 = new TimeParser(atStyleTimeSpec1).parse();
+ TimeSpec timeSpec2 = new TimeParser(atStyleTimeSpec2).parse();
+ return TimeSpec.getTimestamps(timeSpec1, timeSpec2);
+ }
+
/**
* Parses input string as a double value. If the value cannot be parsed, Double.NaN
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