/*
* Copyright 1998-2011 University Corporation for Atmospheric Research/Unidata
*
* Portions of this software were developed by the Unidata Program at the
* University Corporation for Atmospheric Research.
*
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* any fee or cost, to use, copy, modify, alter, enhance and distribute
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*/
/**
*
*/
package ucar.nc2.iosp.grads;
import ucar.nc2.units.DateUnit;
import java.text.FieldPosition;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.TimeZone;
/**
* Class to hold the complexities of the GrADS time dimension
*
* @author Don Murray - CU/CIRES
*/
public class GradsTimeDimension extends GradsDimension {
/** time increment periods */
private final String[] incStr = { "mn", "hr", "dy", "mo", "yr" };
/** corresponding Calendar periods */
private final int[] calIncs = { Calendar.MINUTE, Calendar.HOUR,
Calendar.DATE, Calendar.MONTH,
Calendar.YEAR };
/** time date formats (input is lowercased so Z is z) */
private final String[] dateFormats = { "HH:mm'z'ddMMMyyyy",
"HH'z'ddMMMyyyy", "ddMMMyyyy",
"MMMyyyy" };
/** The initial time as a TimeStruct */
private GradsTimeStruct initialTime = null;
//J-
/** time templates */
private static final String[] timeTemplates = {
"%x1", // 1 digit decade
"%x3", // 3 digit decade
"%y2", // 2 digit year
"%y4", // 4 digit year
"%m1", // 1 or 2 digit month
"%m2", // 2 digit month (leading zero if needed)
"%mc", // 3 character month abbreviation
"%d1", // 1 or 2 digit day
"%d2", // 2 digit day (leading zero if needed)
"%h1", // 1 or 2 digit hour
"%h2", // 2 digit hour
"%h3", // 3 digit hour (e.g., 120 or 012)
"%n2", // 2 digit minute; leading zero if needed
"%f2", // 2 digit forecast hour; leading zero if needed; more digits added for hours >99; hour values increase indefinitely
"%f3", // 3 digit forecast hour; leading zeros if needed; more digits added for hours >999; hour values increase indefinitely
"%fn2", // 2 digit forecast minute; leading zero if needed; more digits added for minutes > 99; minute values increase indefinitely (2.0.a9+)
"%fhn", // forecast time expressed in hours and minutes (hhnn) where minute value (nn) is always <=59
// and hour value (hh) increases indefinitely. If hh or nn are <=9, they are padded with a 0
// so they are always at least 2 digits; more digits added for hours >99. (2.0.a9+)
"%fdhn", // forecast time expressed in days, hours, and minutes (ddhhnn) where minute value (nn) is always <=59,
// hour value (hh) is always <=23 and day value (dd) increases indefinitely. If dd, hh, or nn are <=9,
// they are padded with a 0 so they are always at least 2 digits; more digits added for days >99. (2.0.a9+)
"%j3", // 3 digit julian day (day of year) (2.0.a7+)
"%t1", // 1 or 2 digit time index (file names contain number sequences that begin with 1 or 01) (2.0.a7+)
"%t2", // 2 digit time index (file names contain number sequences that begin with 01) (2.0.a7+)
"%t3", // 3 digit time index (file names contain number sequences that begin with 001) (2.0.a7+)
"%t4", // 4 digit time index (file names contain number sequences that begin with 0001) (2.0.a8+)
"%t5", // 5 digit time index (file names contain number sequences that begin with 00001) (2.0.a8+)
"%t6", // 6 digit time index (file names contain number sequences that begin with 000001) (2.0.a8+)
"%tm1", // 1 or 2 digit time index (file names contain number sequences that begin with 0 or 00) (2.0.a7+)
"%tm2", // 2 digit time index (file names contain number sequences that begin with 00) (2.0.a7+)
"%tm3", // 3 digit time index (file names contain number sequences that begin with 000) (2.0.a7+)
"%tm4", // 4 digit time index (file names contain number sequences that begin with 0000) (2.0.a8+)
"%tm5", // 5 digit time index (file names contain number sequences that begin with 00000) (2.0.a8+)
"%tm6", // 6 digit time index (file names contain number sequences that begin with 000000) (2.0.a8+)
//When specifying the initial time (e.g., NWP model output), use these substitutions:
"%ix1", //initial 1 digit decade
"%ix3", //initial 3 digit decade
"%iy2", //initial 2 digit year
"%iy4", //initial 4 digit year
"%im1", //initial 1 or 2 digit month
"%im2", //initial 2 digit month (leading zero if needed)
"%imc", //initial 3 character month abbreviation
"%id1", //initial 1 or 2 digit day (leading zero if needed)
"%id2", //initial 2 digit day
"%ih1", //initial 1 or 2 digit hour
"%ih2", //initial 2 digit hour
"%ih3", //initial 3 digit hour
"%in2" //initial 2 digit minute (leading zero if needed)
};
//J+
/**
* Create new GradsTimeDimension
*
* @param name the dimension name
* @param size the dimension size
* @param mapping the dimension mapping type
*/
public GradsTimeDimension(String name, int size, String mapping) {
super(name, size, mapping);
}
/**
* Make the level values from the specifications
*
* @return the level values
*/
protected double[] makeLevelValues() {
List<String> levels = getLevels();
if (levels == null) {
return null;
}
if (levels.size() != getSize()) {
// do someting
}
// Time is always LINEAR
int inc = 0;
double[] vals = new double[getSize()];
String tstart = levels.get(0).trim().toLowerCase();
String pattern = null;
if (tstart.indexOf(":") >= 0) { // HH:mmZddMMMyyyy
pattern = dateFormats[0];
} else if (tstart.indexOf("z") >= 0) { // mmZddMMMyyyy
pattern = dateFormats[1];
} else if (Character.isLetter(tstart.charAt(0))) { // MMMyyyy
pattern = dateFormats[3];
} else {
pattern = dateFormats[2]; // ddMMMyyyy
}
SimpleDateFormat sdf = new SimpleDateFormat(pattern);
//sdf.setLenient(true);
sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
ParsePosition p = new ParsePosition(0);
Date d = sdf.parse(tstart, p);
if (d == null) {
System.out.println("couldn't parse at " + p.getErrorIndex());
d = new Date(0);
}
//System.out.println("start = " + d);
// set the unit
sdf.applyPattern("yyyy-MM-dd HH:mm:ss Z");
setUnit("hours since "
+ sdf.format(d, new StringBuffer(), new FieldPosition(0)));
// parse the increment
// vvkk where
// vv = an integer number, 1 or 2 digits
// kk = mn (minute)
// hr (hour)
// dy (day)
// mo (month)
// yr (year)
String tinc = levels.get(1).toLowerCase();
int incIndex = 0;
for (int i = 0; i < incStr.length; i++) {
int index = tinc.indexOf(incStr[i]);
if (index < 0) {
continue;
}
int numOf = Integer.parseInt(tinc.substring(0, index));
inc = numOf;
incIndex = i;
break;
}
Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
calendar.setTime(d);
vals[0] = 0;
initialTime = makeTimeStruct(calendar);
//System.out.println("initial time = " + initialTime);
int calInc = calIncs[incIndex];
for (int i = 1; i < getSize(); i++) {
calendar.add(calInc, inc);
// subtract from origin, convert to hours
double offset = (calendar.getTime().getTime() - d.getTime())
/ (1000 * 60 * 60); //millis in an hour
vals[i] = offset;
}
return vals;
}
/**
* Make a time struct from the index.
*
* @param timeIndex the time value index
*
* @return the corresponding TimeStruct
*/
public GradsTimeStruct makeTimeStruct(int timeIndex) {
double tVal = getValues()[timeIndex];
Date d = DateUnit.getStandardDate(tVal + " " + getUnit());
Calendar calendar = Calendar.getInstance();
calendar.setTimeZone(java.util.TimeZone.getTimeZone("GMT"));
calendar.setTime(d);
return makeTimeStruct(calendar);
}
/**
* Make a GradsTimeStruct from the calendar state
*
* @param calendar the calendar
*
* @return the corresponding GradsTimeStruct
*/
private GradsTimeStruct makeTimeStruct(Calendar calendar) {
GradsTimeStruct ts = new GradsTimeStruct();
ts.year = calendar.get(Calendar.YEAR);
ts.month = calendar.get(Calendar.MONTH) + 1; // MONTH is zero based
ts.day = calendar.get(Calendar.DAY_OF_MONTH);
ts.hour = calendar.get(Calendar.HOUR_OF_DAY);
ts.minute = calendar.get(Calendar.MINUTE);
ts.jday = calendar.get(Calendar.DAY_OF_YEAR);
return ts;
}
/**
* Replace the time template parameters in a filename
*
* @param filespec the file template
* @param timeIndex the time index
*
* @see "http://www.iges.org/grads/gadoc/templates.html"
*
* @return the filled in template
*/
public String replaceFileTemplate(String filespec, int timeIndex) {
GradsTimeStruct ts = makeTimeStruct(timeIndex);
//System.out.println(ts);
String retString = filespec;
String format;
while (hasTimeTemplate(retString)) {
// initial time
if (retString.indexOf("%ix1") >= 0) {
retString = retString.replaceAll("%ix1",
String.format("%d", initialTime.year / 10));
}
if (retString.indexOf("%ix3") >= 0) {
retString = retString.replaceAll("%ix3",
String.format("%03d", initialTime.year / 10));
}
if (retString.indexOf("%iy2") >= 0) {
int cent = initialTime.year / 100;
int val = initialTime.year - cent * 100;
retString = retString.replaceAll("%iy2",
String.format("%02d", val));
}
if (retString.indexOf("%iy4") >= 0) {
retString = retString.replaceAll("%iy4",
String.format("%d", initialTime.year));
}
if (retString.indexOf("%im1") >= 0) {
retString = retString.replaceAll("%im1",
String.format("%d", initialTime.month));
}
if (retString.indexOf("%im2") >= 0) {
retString = retString.replaceAll("%im2",
String.format("%02d", initialTime.month));
}
if (retString.indexOf("%imc") >= 0) {
retString = retString.replaceAll("%imc",
GradsTimeStruct.months[initialTime.month - 1]);
}
if (retString.indexOf("%id1") >= 0) {
retString = retString.replaceAll("%id1",
String.format("%d", initialTime.day));
}
if (retString.indexOf("%id2") >= 0) {
retString = retString.replaceAll("%id2",
String.format("%02d", initialTime.day));
}
if (retString.indexOf("%ih1") >= 0) {
retString = retString.replaceAll("%ih1",
String.format("%d", initialTime.hour));
}
if (retString.indexOf("%ih2") >= 0) {
retString = retString.replaceAll("%ih2",
String.format("%02d", initialTime.hour));
}
if (retString.indexOf("%ih3") >= 0) {
retString = retString.replaceAll("%ih3",
String.format("%03d", initialTime.hour));
}
if (retString.indexOf("%in2") >= 0) {
retString = retString.replaceAll("%in2",
String.format("%02d", initialTime.minute));
}
// any time
// decade
if (retString.indexOf("%x1") >= 0) {
retString = retString.replaceAll("%x1",
String.format("%d", ts.year / 10));
}
if (retString.indexOf("%x3") >= 0) {
retString = retString.replaceAll("%x3",
String.format("%03d", ts.year / 10));
}
// year
if (retString.indexOf("%y2") >= 0) {
int cent = ts.year / 100;
int val = ts.year - cent * 100;
retString = retString.replaceAll("%y2",
String.format("%02d", val));
}
if (retString.indexOf("%y4") >= 0) {
retString = retString.replaceAll("%y4",
String.format("%d", ts.year));
}
// month
if (retString.indexOf("%m1") >= 0) {
retString = retString.replaceAll("%m1",
String.format("%d", ts.month));
}
if (retString.indexOf("%m2") >= 0) {
retString = retString.replaceAll("%m2",
String.format("%02d", ts.month));
}
if (retString.indexOf("%mc") >= 0) {
retString = retString.replaceAll("%mc",
GradsTimeStruct.months[ts.month - 1]);
}
// day
if (retString.indexOf("%d1") >= 0) {
retString = retString.replaceAll("%d1",
String.format("%d", ts.day));
}
if (retString.indexOf("%d2") >= 0) {
retString = retString.replaceAll("%d2",
String.format("%02d", ts.day));
}
// hour
if (retString.indexOf("%h1") >= 0) {
retString = retString.replaceAll("%h1",
String.format("%d", ts.hour));
}
if (retString.indexOf("%h2") >= 0) {
retString = retString.replaceAll("%h2",
String.format("%02d", ts.hour));
}
if (retString.indexOf("%h3") >= 0) {
retString = retString.replaceAll("%h3",
String.format("%03d", ts.hour));
}
// minute
if (retString.indexOf("%n2") >= 0) {
retString = retString.replaceAll("%n2",
String.format("%02d", ts.minute));
}
// julian day
if (retString.indexOf("%j3") >= 0) {
retString = retString.replaceAll("%j3",
String.format("%03d", ts.jday));
}
// time index (1 based)
if (retString.indexOf("%t1") >= 0) {
retString = retString.replaceAll("%t1",
String.format("%d", timeIndex + 1));
}
if (retString.indexOf("%t2") >= 0) {
retString = retString.replaceAll("%t2",
String.format("%02d", timeIndex + 1));
}
if (retString.indexOf("%t3") >= 0) {
retString = retString.replaceAll("%t3",
String.format("%03d", timeIndex + 1));
}
if (retString.indexOf("%t4") >= 0) {
retString = retString.replaceAll("%t4",
String.format("%04d", timeIndex + 1));
}
if (retString.indexOf("%t5") >= 0) {
retString = retString.replaceAll("%t5",
String.format("%05d", timeIndex + 1));
}
if (retString.indexOf("%t6") >= 0) {
retString = retString.replaceAll("%t6",
String.format("%06d", timeIndex + 1));
}
// time index (0 based)
if (retString.indexOf("%tm1") >= 0) {
retString = retString.replaceAll("%tm1",
String.format("%d", timeIndex));
}
if (retString.indexOf("%tm2") >= 0) {
retString = retString.replaceAll("%tm2",
String.format("%02d", timeIndex));
}
if (retString.indexOf("%tm3") >= 0) {
retString = retString.replaceAll("%tm3",
String.format("%03d", timeIndex));
}
if (retString.indexOf("%tm4") >= 0) {
retString = retString.replaceAll("%tm4",
String.format("%04d", timeIndex));
}
if (retString.indexOf("%tm5") >= 0) {
retString = retString.replaceAll("%tm5",
String.format("%05d", timeIndex));
}
if (retString.indexOf("%tm6") >= 0) {
retString = retString.replaceAll("%tm6",
String.format("%06d", timeIndex));
}
// forecast hours
if (retString.indexOf("%f") >= 0) {
int mins = (int) getValues()[timeIndex] * 60;
int tdif;
if (retString.indexOf("%f2") >= 0) {
format = "%02d";
tdif = mins / 60;
if (tdif > 99) {
format = "%d";
}
retString = retString.replaceAll("%f2",
String.format(format, tdif));
}
if (retString.indexOf("%f3") >= 0) {
format = "%03d";
tdif = mins / 60;
if (tdif > 999) {
format = "%d";
}
retString = retString.replaceAll("%f3",
String.format(format, tdif));
}
if (retString.indexOf("%fn2") >= 0) {
format = "%02d";
if (mins > 99) {
format = "%d";
}
retString = retString.replaceAll("%fn2",
String.format(format, mins));
}
if (retString.indexOf("%fhn2") >= 0) {
tdif = mins;
int hrs = tdif / 60;
int mns = tdif - (hrs * 60);
format = "%02d%02d";
if (hrs > 99) {
format = "%d%02d";
}
retString = retString.replaceAll("%fhn2",
String.format(format, hrs, mns));
}
if (retString.indexOf("%fdhn2") >= 0) {
tdif = mins;
int dys = tdif / 1440;
int hrs = (tdif - (dys * 1440)) / 60;
int mns = tdif - (dys * 1440) - (hrs * 60);
format = "%02d%02d%02d";
if (dys > 99) {
format = "%d%02d%02d";
}
retString = retString.replaceAll("%fdhn2",
String.format(format, dys, hrs, mns));
}
}
}
return retString;
}
/**
* Does this file definition have a time template in it?
* @param template the file template
* @return true if it does
*/
public static boolean hasTimeTemplate(String template) {
for (int i = 0; i < timeTemplates.length; i++) {
if (template.indexOf(timeTemplates[i]) >= 0) {
return true;
}
}
return false;
}
}