package nl.wldelft.fews.system.plugin.dataImport;
import nl.wldelft.util.ExceptionUtils;
import nl.wldelft.util.FastGregorianCalendar;
import nl.wldelft.util.TextUtils;
import nl.wldelft.util.io.FileParser;
import nl.wldelft.util.timeseries.DefaultTimeSeriesHeader;
import nl.wldelft.util.timeseries.RelativeEquidistantTimeStep;
import nl.wldelft.util.timeseries.SimpleEquidistantTimeStep;
import nl.wldelft.util.timeseries.TimeSeriesContentHandler;
import nl.wldelft.util.timeseries.TimeStep;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Calendar;
import java.util.List;
import java.util.Locale;
import java.util.regex.Pattern;
/**
* TimeSeries parser for SHEF version 2.0.
* http://www.nws.noaa.gov/os/hod/SHManual/SHMan051_shef.htm
* http://www.nws.noaa.gov/om/water/resources/SHEF_CodeManual_5July2012.pdf
*/
public class ShefTimeSeriesParser implements FileParser<TimeSeriesContentHandler> {
private static final Logger log = LogManager.getLogger();
public static final String readerType = "SHEF";
private static final String SINGLE_LOCATION_MULTIPLE_PARAMETERS_TYPE = ".A";
private static final String END_TOKEN_TYPE = ".END";
private static final Pattern COMPILE_PATTERN_B_HEADER = Pattern.compile(".B|.BR"); // B type record
private static final Pattern COMPILE_PATTERN_A_CONTINUATION = Pattern.compile(".A\\d+"); // Start with a .A followed by one or more digits.
private static final Pattern COMPILE_PATTERN_B_CONTINUATION = Pattern.compile(".B\\d+|.BR\\d+"); // Start with a .B followed by one or more digits.
private static final String SINGLE_LOCATION_MULTIPLE_PARAMETERS_CONTINUATION_TYPE = ".AR";
private static final Pattern COMPILE_PATTERN_ER_AR = Pattern.compile("\\.ER?$|.AR?$");
private static final Pattern COMPILE_PATTERN_ER = Pattern.compile("\\.ER?$");
private static final Pattern COMPILE_PATTERN_ER_D_AR_D = Pattern.compile("\\.ER?\\d+|\\.AR?\\d+");
private static final Pattern COMPILE_PATTERN_D_STAR = Pattern.compile("DS.*|DN.*|DH.*|DD.*|DM.*|DY.*|DJ.*|DR.*");
private static final Pattern COMPILE_PATTERN_D = Pattern.compile("D.*|");
private static final Pattern COMPILE_PATTERN_DU = Pattern.compile("DU.*|");
private static final Pattern COMPILE_PATTERN_DI = Pattern.compile("DI.*");
private static final Pattern COMPILE_PATTERN_DH_DD = Pattern.compile("DH\\d\\d.*");
private static final Pattern COMPILE_PATTERN_START_DIGIT = Pattern.compile("[^0-9]");
private static final Pattern COMPILE_PATTERN_DIH = Pattern.compile(".*DIH.*");
private static final Pattern COMPILE_PATTERN_DIN = Pattern.compile(".*DIN.*");
private static final Pattern COMPILE_PATTERN_DID = Pattern.compile(".*DID.*");
private static final Pattern COMPILE_PATTERN_DR_SHIFT = Pattern.compile("DRS*[+-]\\d+|DRN*[+-]\\d+|DRH*[+-]\\d+|DRD*[+-]\\d+|DRM*[+-]\\d+|DRD*[+-]\\d+");
private static final char quoteChar = '\"';
private FastGregorianCalendar calendar = null;
private TimeSeriesContentHandler contentHandler = null;
// Variables for parsing the file
private long time = 0;
private long dtime = 0;
private boolean separatorOnLastLine = false;
private static final int E_TYPE = 0;
private static final int A_TYPE = 1;
private int messageType = 0;
private String aContinuationLocationId = null;
// string array contains all fields before the first / separator
private int firstSlashSeparatorIdx = 0;
@Override
public void parse(File file, TimeSeriesContentHandler contentHandler) throws Exception {
this.contentHandler = contentHandler;
calendar = new FastGregorianCalendar(this.contentHandler.getDefaultTimeZone(), Locale.US);
boolean isValid = readFile(file);
if (!isValid) {
throw new IOException("Error parsing: " + file.getName());
}
}
private boolean readFile(File file) throws Exception {
BufferedReader reader = null;
boolean done = false;
//Open file
try {
//noinspection resource
reader = new BufferedReader(new FileReader(file));
done = true;
} catch (FileNotFoundException e) {
log.error(file + " could not be opened.", e);
}
//Read/parse the file
if (done) {
try {
if (!parseFile(reader)) {
done = false;
log.error("The file " + file + " has unknown format.");
}
} catch (IOException e) {
done = false;
log.error("Error while reading the file " +
file + " : " + ExceptionUtils.getMessage(e), e);
}
closeReader(reader);
}
return done;
}
private static void closeReader(BufferedReader reader) {
try {
reader.close();
} catch (IOException e) {
log.error("Cannot close file " + reader +
" : " + ExceptionUtils.getMessage(e), e);
}
}
/**
* Read file content and store it into the memory
* Comments on the SHEF file format:
* - The method recognises .ER and .Ed lines only (d=digit)
* - All other lines are ignored at the moment
* <p/>
* Note:
* We assume that the fields are separated by spaces and that the
* .ER and .E records do not contain timeseries data!
*
* @return
* @throws IOException
*/
private boolean parseFile(BufferedReader reader) throws Exception {
boolean okay = true;
String line;
while ((line = reader.readLine()) != null && okay) {
StringBuilder commentFreeLine = removeCommentsFromLine(line);
String[] pieces = TextUtils.split(commentFreeLine.toString(), ':', '\0', quoteChar, false);
//noinspection UnusedAssignment
String[] fields = TextUtils.split(pieces[0], ' ', '\0', quoteChar, true);
// get fields, first part is split by space next part by '/'
// first split with separator '/' will split up line in first part containing spaces (position part)
// followed by the datastring fields (separated by '/')
String[] tmpPieces = pieces[0].split("/");
String[] positionFields = TextUtils.split(tmpPieces[0], ' ', '\"');
firstSlashSeparatorIdx = positionFields.length;
fields = new String[tmpPieces.length + positionFields.length - 1];
System.arraycopy(positionFields, 0, fields, 0, positionFields.length);
System.arraycopy(tmpPieces, 1, fields, positionFields.length, tmpPieces.length - 1);
//Header lines start with .E or .ER (but may comtain data)
//Data-only lines start with .Ed or .ERd - d a digit
if (fields.length > 0) {
if (COMPILE_PATTERN_A_CONTINUATION.matcher(fields[0]).matches()) {
parseMultiParameterContinuationSeriesData(fields);
} else if (COMPILE_PATTERN_ER_AR.matcher(fields[0]).matches()) {
this.messageType = COMPILE_PATTERN_ER.matcher(fields[0]).matches() ? E_TYPE : A_TYPE;
// bug in OHD output for .A messages. missing '/' slash between parameter id and
// value. Remove this when fixed
if (this.messageType == A_TYPE) {
String[] splitfields = TextUtils.split(fields[fields.length - 1], ' ', '\"');
if (splitfields.length > 1) {
String[] tmpFields = new String[fields.length + 1];
System.arraycopy(fields, 0, tmpFields, 0, fields.length - 1);
System.arraycopy(splitfields, 0, tmpFields, fields.length - 1, 2);
fields = tmpFields;
}
}
if (SINGLE_LOCATION_MULTIPLE_PARAMETERS_TYPE.equals(fields[0])) {
// .A type no headers all data is on one line with multiple parameters.
parseMultiParameterSeriesData(fields);
} else {
// .AR type. Revision on earlier measurement. Assumption is that only one parameter at a time is passed.
okay = getSeriesParameters(fields);
if (okay) {
// see if there are any values on this row, if so start fill series data
// because parameter and timestep are mandatory values can be started
// from firstSlashSeparator untill end of fields
if (fields.length == firstSlashSeparatorIdx + 2 && SINGLE_LOCATION_MULTIPLE_PARAMETERS_CONTINUATION_TYPE.equals(fields[0])) {
String value = fields[fields.length - 1];
okay = getContinuationSeriesData(value);
}
if (fields.length > firstSlashSeparatorIdx + 2) {
for (int i = firstSlashSeparatorIdx + 2; i < fields.length; i++) {
if (isFloat(fields[i])) {
String[] values = new String[fields.length - i];
System.arraycopy(fields, i, values, 0, fields.length - i);
okay = getSeriesData(values);
break;
}
}
}
}
}
} else if (COMPILE_PATTERN_B_HEADER.matcher(fields[0]).matches()) {
// parse complete .B type record
parseMultipleLocationMultipleParametersSeries(fields, reader);
} else if (COMPILE_PATTERN_ER_D_AR_D.matcher(fields[0]).matches()) {
// continued line
String[] datafields;
if (positionFields.length == 1 && separatorOnLastLine) {
// slash between rowcontinuation and first value. If previous line ended with a slash
// a null value is assumed
fields[0] = null;
datafields = fields;
} else {
// skip first column with normal linecontinuation
datafields = new String[fields.length - 1];
System.arraycopy(fields, 1, datafields, 0, fields.length - 1);
}
okay = getSeriesData(datafields);
}
separatorOnLastLine = line.endsWith("/");
}
}
return okay;
}
private static StringBuilder removeCommentsFromLine(String line) {
//Split the line into separate fields:
//Remove any comment first
String[] piecesWithComments = TextUtils.split(line, ':', ':', quoteChar, true);
StringBuilder commentFreeLine = new StringBuilder(line.length());
if (line.contains(":")) {
int togglePosition = 0;
if (line.startsWith(":")) {
togglePosition = 1; // if the line starts with a : , the first entry should be skipped.
}
if (piecesWithComments.length > 0) {
// we found some comments.
for (int i = 0; i < piecesWithComments.length; i++) {
if (i % 2 == togglePosition) {
// the comment toggle is off.
// see: http://www.nws.noaa.gov/om/water/resources/SHEF_CodeManual_5July2012.pdf
commentFreeLine.append(piecesWithComments[i]);
}
}
}
} else {
commentFreeLine.append(line);
}
return commentFreeLine;
}
private static boolean isFloat(String value) {
try {
//noinspection UnusedDeclaration
Float f = TextUtils.parseFloat(value);
} catch (NumberFormatException e) {
return false;
}
return true;
}
// Read a complete set of .B type records spanning multiple lines
private void parseMultipleLocationMultipleParametersSeries(String[] fields, BufferedReader reader) throws Exception {
// get time, as a combination of date, [observation time]
String date = fields[2];
int ifield = 3;
while (!COMPILE_PATTERN_D_STAR.matcher(fields[ifield]).matches()) {
ifield++;
}
String observationTime = fields[ifield];
// The start date/time, and the time step:
time = parseDate(date, observationTime);
// skip optional D* fields
while (COMPILE_PATTERN_D.matcher(fields[ifield]).matches()) {
ifield++;
}
// The list of parameter/time shift headers, including .Bp continuation lines, if any
String line;
String header;
List<String> headerList = new ArrayList<>();
do {
for (int i = ifield; i < fields.length; i++) {
if (!COMPILE_PATTERN_DU.matcher(fields[i]).matches()) headerList.add(fields[i]);
}
// continue on next line ?
line = removeCommentsFromLine(reader.readLine()).toString();
line = line.replace(" ", " ");
int ix = line.indexOf(" ");
header = ix > 0 ? line.substring(0, ix) : "";
String newline = line.substring(ix + 1).replace(" ", "");
fields = TextUtils.split(newline, '/');
// some inconsistency in '/' separators on continuation lines !
ifield = TextUtils.equals(fields[0].trim(), "") ? 1 : 0;
} while (COMPILE_PATTERN_B_CONTINUATION.matcher(header).matches());
// The data lines
do {
line = removeCommentsFromLine(line).toString();
line = line.replace(" ", " ");
if (!line.isEmpty()) {
int ix = line.indexOf(" ");
String location = line.substring(0, ix);
line = line.substring(ix + 1).replace(" ", "");
fields = TextUtils.split(line, '/');
writeBFormatLineContent(time, location, headerList, fields);
}
} while ((line = reader.readLine()) != null && !line.contains(END_TOKEN_TYPE));
}
private void writeBFormatLineContent(long time, String location, List<String> headerList, String[] fields) throws Exception {
DefaultTimeSeriesHeader timeSeriesHeader = new DefaultTimeSeriesHeader();
timeSeriesHeader.setLocationId(location);
long startTime = time;
int iHeader = 0;
for (int iField = 0; iField < fields.length; iField++) {
// in addition to parameter names, header may contain "DRx" date/time shift codes
while (COMPILE_PATTERN_DR_SHIFT.matcher(headerList.get(iHeader)).matches()) {
time = applyDateTimeShift(startTime, headerList.get(iHeader));
iHeader++;
}
// in addition to location code, line may contain date-time override code
while (COMPILE_PATTERN_D_STAR.matcher(fields[iField]).matches()) {
time = applyDateTimeOverride(startTime, fields[iField]);
iField++;
}
timeSeriesHeader.setParameterId(headerList.get(iHeader));
String text = fields[iField].trim();
float value = text.isEmpty() || TextUtils.equals("+", text) || TextUtils.equals("M", text) ? Float.NaN : Float.parseFloat(text);
contentHandler.setTimeSeriesHeader(timeSeriesHeader);
contentHandler.setTime(time);
contentHandler.setValue(value);
contentHandler.applyCurrentFields();
iHeader++;
}
}
private long applyDateTimeOverride(long time, String token) throws Exception {
if (!COMPILE_PATTERN_D_STAR.matcher(token).matches()) return time;
calendar.setTimeInMillis(time);
String value = token.substring(2);
String code = token.substring(0, 2);
switch (code) {
case "DY":
time = applydateTimeYear(value, true);
break;
case "DM":
time = applyDateTimeMonth(value, true);
break;
case "DD":
time = applyDateTimeDay(value);
break;
case "DH":
time = applyDateTimeHour(value);
break;
case "DN":
time = applyDateTimeMinute(value);
break;
case "DS":
time = applyDateTimeSeconds(value);
break;
default:
throw new Exception("ShefTimeSeriesParser: invalid 'Date/Time override code' : " + token);
}
return time;
}
private long applydateTimeYear(String value, boolean fixCentury) {
int i = Integer.parseInt(value.substring(0, 2));
if (fixCentury) {
// see SHEF coding manual 4.1.4 : a 10 year in the future and 90 year in the past window is used to assign the century
int y = calendar.get(Calendar.YEAR);
int c = y / 100;
if (100 * c + i > y + 10) c--;
i = 100 * c + i;
}
calendar.set(Calendar.YEAR, i);
return applyDateTimeMonth(value.substring(2), false);
}
private long applyDateTimeMonth(String value, boolean fixYear) {
int i = Integer.parseInt(value.substring(0, 2));
if (fixYear) {
// see SHEF coding manual 4.1.4 : a 12-month window is used to assign the year that causes the date code to be nearest the system/start date
int m = calendar.get(Calendar.MONTH) +1;
int y = calendar.get(Calendar.YEAR);
if (i > m + 6) {
y--;
} else if (i <= m - 6) {
y++;
}
calendar.set(Calendar.YEAR, y);
}
calendar.set(Calendar.MONTH, i - 1);
return applyDateTimeDay(value.substring(2));
}
private long applyDateTimeDay(String value) {
calendar.set(Calendar.DATE, Integer.parseInt(value.substring(0, 2)));
return applyDateTimeHour(value.substring(2));
}
private long applyDateTimeHour(String value) {
calendar.set(Calendar.HOUR_OF_DAY, Integer.parseInt(value.substring(0, 2)));
return applyDateTimeMinute(value.substring(2));
}
private long applyDateTimeMinute(String value) {
calendar.set(Calendar.MINUTE, Integer.parseInt(value.substring(0, 2)));
return applyDateTimeSeconds(value.substring(2));
}
private long applyDateTimeSeconds(String value) {
if (!value.isEmpty()) calendar.set(Calendar.SECOND, Integer.parseInt(value.substring(0, 2)));
return calendar.getTimeInMillis();
}
private long applyDateTimeShift(long time, String token) {
// see SHEF_CodeManual_5July2012.pdf table 13a
if (token.indexOf("DR") != 0) return time;
calendar.setTimeInMillis(time);
String unit = token.substring(2, 3).toUpperCase();
int increment = Integer.parseInt(token.substring(3));
switch (unit) {
case "S":
calendar.add(Calendar.SECOND, increment);
break;
case "N":
calendar.add(Calendar.MINUTE, increment);
break;
case "H":
calendar.add(Calendar.HOUR_OF_DAY, increment);
break;
case "D":
calendar.add(Calendar.DATE, increment);
break;
case "M":
calendar.add(Calendar.MONTH, increment);
break;
default:
throw new IllegalArgumentException("ShefTimeSeriesParser: invalid 'Date Relative code' : " + token);
}
return calendar.getTimeInMillis();
}
// Continuation of .A field with multiple parameters per line.
private void parseMultiParameterContinuationSeriesData(String[] fields) {
DefaultTimeSeriesHeader timeSeriesHeader = new DefaultTimeSeriesHeader();
timeSeriesHeader.setLocationId(aContinuationLocationId);
List<String> parameterValueList = new ArrayList<>();
for (int i = 1; i < fields.length; i++) {
if (fields[i] == null) continue;
String[] result = fields[i].split(" ");
parameterValueList.addAll(Arrays.asList(result));
}
writeMultipleParametersSeries(timeSeriesHeader, parameterValueList);
}
private void writeMultipleParametersSeries(DefaultTimeSeriesHeader timeSeriesHeader, List<String> parameterValueList) {
if (parameterValueList.size() % 2 != 0) {
if (!parameterValueList.isEmpty()) {
// Check on special symbols like DC (date creation).
String code = parameterValueList.get(0);
if (code.startsWith("DC")) return; // Creation date. Can be ignored.
}
log.warn("SHEF import line of type .A[0-9]* (single station, multiple parameters) doesn't contain a consistent number of parameters and values. Skipping line");
return;
}
for (int i = 0; i < parameterValueList.size() / 2; i++) {
String paramId = parameterValueList.get(i * 2);
float value = parseValue(parameterValueList.get(i * 2 + 1));
timeSeriesHeader.setParameterId(paramId);
contentHandler.setTimeSeriesHeader(timeSeriesHeader);
contentHandler.setTime(time);
contentHandler.setValue(value);
contentHandler.applyCurrentFields();
}
}
private void parseMultiParameterSeriesData(String[] fields) {
// .A ANAW1 20170215 P DH2400 /DH08 /HGIRX 8.37 /QRIRX 41.69
// Couting fields from 0:
// Field 1 is the name of the location
// Field 2 is the date (possibly without a year)
// Skip all /D parts.
// parameter code 1
// parameter value 1
// ..
// parameter code N
// parameter value N
// get location id
String locationId = fields[1];
String date = fields[2];
String observationTime = "";
// get time, as a combination of date, [observation time]
// get observation time if exist
int ifield = 3;
for (; ifield < fields.length; ifield++) {
if (COMPILE_PATTERN_D_STAR.matcher(fields[ifield]).matches()) {
observationTime = fields[ifield];
break;
}
}
// The start date/time, and the time step:
time = parseDate(date, observationTime);
aContinuationLocationId =locationId; // Keep location id in case .A continutations are found.
DefaultTimeSeriesHeader timeSeriesHeader = new DefaultTimeSeriesHeader();
timeSeriesHeader.setLocationId(locationId);
ifield = firstSlashSeparatorIdx;
// get parameter id, i.e. the first field without a D in prefix
for (; ifield < fields.length; ifield++) {
if (!COMPILE_PATTERN_D.matcher(fields[ifield]).matches()) {
break;
// Index of first parameter was found.
}
}
List<String> parameterValueList = new ArrayList<>();
for (int i = ifield; i < fields.length; i++) {
if (fields[i] == null) continue;
String[] result = fields[i].split(" ");
parameterValueList.addAll(Arrays.asList(result));
}
writeMultipleParametersSeries(timeSeriesHeader, parameterValueList);
}
private boolean getSeriesParameters(String[] fields) {
// Couting fields from 0:
// Field 1 is the name of the location
// Field 2 is the date (possibly without a year)
// Field 3 is the timezone (optional!)
// observation time (optional)
// creation date (optional)
// units code (optional)
// Data string qualifier (optional)
// Duration code (optional)
// parameter code
// the time interval (only for .E messages)
// get location id
String locationId = fields[1];
String date = fields[2];
String observationTime = "";
// get time, as a combination of date, [observation time]
// get observation time if exist
int ifield = 3;
for (; ifield < fields.length; ifield++) {
if (COMPILE_PATTERN_D_STAR.matcher(fields[ifield]).matches()) {
observationTime = fields[ifield];
break;
}
}
// The start date/time, and the time step:
time = parseDate(date, observationTime);
ifield = firstSlashSeparatorIdx;
// get parameter id, i.e. the first field without a D in prefix
String parameterId = null;
for (; ifield < fields.length; ifield++) {
if (!COMPILE_PATTERN_D.matcher(fields[ifield]).matches()) {
parameterId = fields[ifield];
break;
}
}
// get timestep field, mandatory only for .E messages
for (; ifield < fields.length; ifield++) {
if (COMPILE_PATTERN_DI.matcher(fields[ifield]).matches()) {
String timestep = fields[ifield];
dtime = parseTimeStep(timestep);
break;
}
}
DefaultTimeSeriesHeader timeSeriesHeader = new DefaultTimeSeriesHeader();
timeSeriesHeader.setLocationId(locationId);
timeSeriesHeader.setParameterId(parameterId);
if (this.messageType == E_TYPE) {
TimeStep relativeEqTimeStep = RelativeEquidistantTimeStep.getInstance(dtime, time);
timeSeriesHeader.setTimeStep(SimpleEquidistantTimeStep.getInstance(relativeEqTimeStep.getMaximumStepMillis())); //supports only equidistant time steps, see parseTimeStep
timeSeriesHeader.setForecastTime(time);
}
contentHandler.setTimeSeriesHeader(timeSeriesHeader);
if (this.messageType == E_TYPE) {
return time != 0 && dtime != 0; //AM: error conditions?
} else {
return time != 0;
}
}
private boolean getSeriesData(String[] fields) {
for (int i = 0; i < fields.length; i++) {
float value = parseValue(fields[i]);
contentHandler.setTime(time);
contentHandler.setValue(value);
contentHandler.applyCurrentFields();
time += dtime;
}
return true;
}
private boolean getContinuationSeriesData(String valueString) {
float value = parseValue(valueString);
contentHandler.setTime(time);
contentHandler.setValue(value);
contentHandler.applyCurrentFields();
return true;
}
private long parseDate(String str, String timestr) {
int year;
int month;
int day;
if (str.length() == 8) {
year = Integer.parseInt(str.substring(0, 4));
month = Integer.parseInt(str.substring(4, 6));
day = Integer.parseInt(str.substring(6, 8));
} else {
if (str.length() == 6) {
year = 100 * (calendar.get(Calendar.YEAR) / 100) + Integer.parseInt(str.substring(0, 2));
month = Integer.parseInt(str.substring(2, 4));
day = Integer.parseInt(str.substring(4, 6));
} else {
// SHEF code manual 2012 explicitly states:
// When “yy” (year) is not explicitly coded, a 12-month window is used to assign the year that causes the
// date code to be nearest the current system date at the time of decoding.
// Outside the 12-month current date-centered default window, a year other than the
// default year must be explicitly specified. Also, exercise caution when choosing not to explicitly
// code year in SHEF messages. If these messages are archived in raw form, header records must
// be added in the archive function to make future determination of the correct year possible for
// retrieval software.
year = calendar.get(Calendar.YEAR);
month = Integer.parseInt(str.substring(0, 2));
day = Integer.parseInt(str.substring(2, 4));
if (month > calendar.get(Calendar.MONTH) + 5) {
year--;
}
if (month < calendar.get(Calendar.MONTH) - 6) {
year++;
}
}
}
// The time string (actually a composite thing)
// We expect something like: DH12/... If not, ignore this field
// -- AM: TODO!
int hour = 0;
int minute = 0;
int second = 0;
if (COMPILE_PATTERN_DH_DD.matcher(timestr).matches()) {
hour = Integer.parseInt(timestr.substring(2, 4));
if (timestr.length() == 6) {
minute = TextUtils.tryParseInt(timestr.substring(4, 6), 0);
}
if (timestr.length() == 8) {
second = TextUtils.tryParseInt(timestr.substring(6, 8), 0);
}
}
calendar.clear();
//noinspection MagicConstant
calendar.set(year, month - 1, day, hour, minute, second); /* Correct for the offset: month numbers start at 0*/
return calendar.getTimeInMillis();
}
private static long parseTimeStep(String str) {
long scale;
long value = Long.parseLong(COMPILE_PATTERN_START_DIGIT.matcher(str).replaceAll(""));
if (COMPILE_PATTERN_DIH.matcher(str).matches()) {
scale = 3600 * 1000;
} else if (COMPILE_PATTERN_DIN.matcher(str).matches()) {
scale = 60 * 1000;
} else if (COMPILE_PATTERN_DID.matcher(str).matches()) {
scale = 86400 * 1000;
} else {
scale = 0;
}
return scale * value;
}
private static float parseValue(String valueText) {
float value = Float.NaN;
if (valueText != null) {
valueText = valueText.trim();
if (!valueText.isEmpty()) {
// Missing value can be marked +, -, m, mm, M, MM, -9999
if (!(valueText.equalsIgnoreCase("M") || valueText.equalsIgnoreCase("MM") || valueText.equalsIgnoreCase("-") ||
valueText.equalsIgnoreCase("+") || valueText.equalsIgnoreCase("-9999"))) {
try {
value = TextUtils.parseFloat(valueText);
} catch (NumberFormatException e) {
// If no legitimate value is found, the value is treated as a null field or no report.
// So we should return missingValue
value = Float.NaN;
}
}
}
}
return value;
}
}
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