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Commit 7d4f4a1d authored by Luc Maisonobe's avatar Luc Maisonobe
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Added support for IERS Rapid Data and Prediction files. 

These files ares the finals.all, finals.data and finals.daily files.
Both IAU-1980 and IAU-2000 are supported and both columns and
XML formats are supported.
parent 914222e0
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pom.xml
View file @ 7d4f4a1d
......@@ -5,7 +5,7 @@
<groupId>org.orekit</groupId>
<artifactId>orekit</artifactId>
<packaging>bundle</packaging>
<version>5.0.1</version>
<version>5.0.2</version>
<name>ORbit Extrapolation KIT</name>
<url>http://www.orekit.org/</url>
......
src/main/java/org/orekit/frames/FramesFactory.java
View file @ 7d4f4a1d
......@@ -102,12 +102,24 @@ import org.orekit.utils.Constants;
*/
public class FramesFactory implements Serializable {
/** Default regular expression for the Rapid Data and Prediction EOP columns files (IAU1980 compatibles). */
public static final String RAPID_DATA_PREDICITON_COLUMNS_1980_FILENAME = "^finals\\.[^.]*$";
/** Default regular expression for the Rapid Data and Prediction EOP XML files (IAU1980 compatibles). */
public static final String RAPID_DATA_PREDICITON_XML_1980_FILENAME = "^finals\\..*\\.xml$";
/** Default regular expression for the EOPC04 files (IAU1980 compatibles). */
public static final String EOPC04_1980_FILENAME = "^eopc04\\.(\\d\\d)$";
/** Default regular expression for the BulletinB files (IAU1980 compatibles). */
public static final String BULLETINB_1980_FILENAME = "^bulletinb((-\\d\\d\\d\\.txt)|(\\.\\d\\d\\d))$";
/** Default regular expression for the Rapid Data and Prediction EOP columns files (IAU2000 compatibles). */
public static final String RAPID_DATA_PREDICITON_COLUMNS_2000_FILENAME = "^finals2000A\\.[^.]*$";
/** Default regular expression for the Rapid Data and Prediction EOP XML files (IAU2000 compatibles). */
public static final String RAPID_DATA_PREDICITON_XML_2000_FILENAME = "^finals2000A\\..*\\.xml$";
/** Default regular expression for the EOPC04 files (IAU2000 compatibles). */
public static final String EOPC04_2000_FILENAME = "^eopc04_IAU2000\\.(\\d\\d)$";
......@@ -188,6 +200,12 @@ public class FramesFactory implements Serializable {
* <p>
* The default loaders look for IERS EOP 05 C04 and bulletins B files.
* </p>
* @param rapidDataColumnsSupportedNames regular expression for supported
* rapid data columns EOP files names
* (may be null if the default IERS file names are used)
* @param rapidDataXMLSupportedNames regular expression for supported
* rapid data XML EOP files names
* (may be null if the default IERS file names are used)
* @param eopC04SupportedNames regular expression for supported EOP05 C04 files names
* (may be null if the default IERS file names are used)
* @param bulletinBSupportedNames regular expression for supported bulletin B files names
......@@ -196,12 +214,20 @@ public class FramesFactory implements Serializable {
* @see <a href="http://hpiers.obspm.fr/eoppc/bul/bulb/">IERS bulletins B</a>
* @see #addEOP1980HistoryLoader(EOP1980HistoryLoader)
* @see #clearEOP1980HistoryLoaders()
* @see #addDefaultEOP2000HistoryLoaders(String, String)
* @see #addDefaultEOP2000HistoryLoaders(String, String, String)
*/
public static void addDefaultEOP1980HistoryLoaders(final String eopC04SupportedNames,
public static void addDefaultEOP1980HistoryLoaders(final String rapidDataColumnsSupportedNames,
final String rapidDataXMLSupportedNames,
final String eopC04SupportedNames,
final String bulletinBSupportedNames) {
final String rapidColNames =
(rapidDataColumnsSupportedNames == null) ? RAPID_DATA_PREDICITON_COLUMNS_1980_FILENAME : rapidDataColumnsSupportedNames;
addEOP1980HistoryLoader(new RapidDataAndPredictionColumnsLoader(rapidColNames));
final String rapidXmlNames =
(rapidDataXMLSupportedNames == null) ? RAPID_DATA_PREDICITON_XML_1980_FILENAME : rapidDataXMLSupportedNames;
addEOP1980HistoryLoader(new RapidDataAndPredictionXMLLoader(rapidXmlNames));
final String eopcNames =
(eopC04SupportedNames == null) ? EOPC04_1980_FILENAME : eopC04SupportedNames;
(eopC04SupportedNames == null) ? EOPC04_1980_FILENAME : eopC04SupportedNames;
addEOP1980HistoryLoader(new EOP05C04FilesLoader(eopcNames));
final String bulBNames =
(bulletinBSupportedNames == null) ? BULLETINB_1980_FILENAME : bulletinBSupportedNames;
......@@ -234,7 +260,7 @@ public class FramesFactory implements Serializable {
public static EOP1980History getEOP1980History() throws OrekitException {
final EOP1980History history = new EOP1980History();
if (EOP_1980_LOADERS.isEmpty()) {
addDefaultEOP1980HistoryLoaders(null, null);
addDefaultEOP1980HistoryLoaders(null, null, null, null);
}
for (final EOP1980HistoryLoader loader : EOP_1980_LOADERS) {
loader.fillHistory(history);
......@@ -259,6 +285,12 @@ public class FramesFactory implements Serializable {
* <p>
* The default loaders look for IERS EOP 05 C04 and bulletins B files.
* </p>
* @param rapidDataColumnsSupportedNames regular expression for supported
* rapid data columns EOP files names
* (may be null if the default IERS file names are used)
* @param rapidDataXMLSupportedNames regular expression for supported
* rapid data XML EOP files names
* (may be null if the default IERS file names are used)
* @param eopC04SupportedNames regular expression for supported EOP05 C04 files names
* (may be null if the default IERS file names are used)
* @param bulletinBSupportedNames regular expression for supported bulletin B files names
......@@ -267,10 +299,18 @@ public class FramesFactory implements Serializable {
* @see <a href="http://hpiers.obspm.fr/eoppc/bul/bulb/">IERS bulletins B</a>
* @see #addEOP2000HistoryLoader(EOP2000HistoryLoader)
* @see #clearEOP2000HistoryLoaders()
* @see #addDefaultEOP1980HistoryLoaders(String, String)
* @see #addDefaultEOP1980HistoryLoaders(String, String, String)
*/
public static void addDefaultEOP2000HistoryLoaders(final String eopC04SupportedNames,
public static void addDefaultEOP2000HistoryLoaders(final String rapidDataColumnsSupportedNames,
final String rapidDataXMLSupportedNames,
final String eopC04SupportedNames,
final String bulletinBSupportedNames) {
final String rapidColNames =
(rapidDataColumnsSupportedNames == null) ? RAPID_DATA_PREDICITON_COLUMNS_2000_FILENAME : rapidDataColumnsSupportedNames;
addEOP2000HistoryLoader(new RapidDataAndPredictionColumnsLoader(rapidColNames));
final String rapidXmlNames =
(rapidDataXMLSupportedNames == null) ? RAPID_DATA_PREDICITON_XML_2000_FILENAME : rapidDataXMLSupportedNames;
addEOP2000HistoryLoader(new RapidDataAndPredictionXMLLoader(rapidXmlNames));
final String eopcNames =
(eopC04SupportedNames == null) ? EOPC04_2000_FILENAME : eopC04SupportedNames;
addEOP2000HistoryLoader(new EOP05C04FilesLoader(eopcNames));
......@@ -305,7 +345,7 @@ public class FramesFactory implements Serializable {
public static EOP2000History getEOP2000History() throws OrekitException {
final EOP2000History history = new EOP2000History();
if (EOP_2000_LOADERS.isEmpty()) {
addDefaultEOP2000HistoryLoaders(null, null);
addDefaultEOP2000HistoryLoaders(null, null, null, null);
}
for (final EOP2000HistoryLoader loader : EOP_2000_LOADERS) {
loader.fillHistory(history);
......
src/main/java/org/orekit/frames/RapidDataAndPredictionColumnsLoader.java 0 → 100644
View file @ 7d4f4a1d
/* Copyright 2002-2011 CS Communication & Systèmes
* Licensed to CS Communication & Systèmes (CS) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* CS licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.orekit.frames;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.orekit.data.DataProvidersManager;
import org.orekit.errors.OrekitException;
import org.orekit.time.DateComponents;
/** Loader for IERS rapid data and prediction files in columns format (finals file).
* <p>Rapid data and prediction files contain {@link TimeStampedEntry
* Earth Orientation Parameters} for several years periods, in one file
* only that is updated regularly.</p>
* <p>
* These files contain both the data from IERS Bulletin A and IERS bulletin B.
* This class parses only the part from Bulletin A.
* </p>
* <p>The rapid data and prediction file is recognized thanks to its base name,
* which must match one of the the patterns <code>finals.*</code> or
* <code>finals2000A.*</code> (or the same ending with <code>.gz</code>
* for gzip-compressed files) where * stands for a word like "all", "daily",
* or "data". The file with 2000A in their name correspond to the
* IAU-2000 precession-nutation model whereas the files without any identifier
* correspond to the IAU-1980 precession-nutation model. The files with the all
* suffix start from 1973-01-01, the file with the data suffix start
* from 1992-01-01 and the files with the daily suffix.</p>
* @author Romain Di Costanzo
* @see <a href="http://maia.usno.navy.mil/ser7/readme.finals2000A">file format description at USNO</a>
*/
class RapidDataAndPredictionColumnsLoader implements EOP1980HistoryLoader, EOP2000HistoryLoader {
/** Conversion factor. */
private static final double ARC_SECONDS_TO_RADIANS = 2 * Math.PI / 1296000;
/** Conversion factor. */
private static final double MILLI_ARC_SECONDS_TO_RADIANS = ARC_SECONDS_TO_RADIANS / 1000;
/** Conversion factor. */
private static final double MILLI_SECONDS_TO_SECONDS = 1.0e-3;
/** Field for year, month and day parsing. */
private static final String INTEGER2_FIELD = "((?:\\p{Blank}|\\p{Digit})\\p{Digit})";
/** Field for modified Julian day parsing. */
private static final String MJD_FIELD = "\\p{Blank}+(\\p{Digit}+)(?:\\.00*)";
/** Field for separator parsing. */
private static final String SEPARATOR = "[IP]";
/** Field for real parsing. */
private static final String REAL_FIELD = "\\p{Blank}*(-?\\p{Digit}*\\.\\p{Digit}*)";
/** Start index of the date part of the line. */
private static int DATE_START = 0;
/** end index of the date part of the line. */
private static int DATE_END = 15;
/** Pattern to match the date part of the line (always present). */
private static final Pattern DATE_PATTERN = Pattern.compile(INTEGER2_FIELD + INTEGER2_FIELD + INTEGER2_FIELD + MJD_FIELD);
/** Start index of the pole part of the line. */
private static int POLE_START = 16;
/** end index of the pole part of the line. */
private static int POLE_END = 55;
/** Pattern to match the pole part of the line. */
private static final Pattern POLE_PATTERN = Pattern.compile(SEPARATOR + REAL_FIELD + REAL_FIELD + REAL_FIELD + REAL_FIELD);
/** Start index of the UT1-UTC part of the line. */
private static int UT1_UTC_START = 57;
/** end index of the UT1-UTC part of the line. */
private static int UT1_UTC_END = 78;
/** Pattern to match the UT1-UTC part of the line. */
private static final Pattern UT1_UTC_PATTERN = Pattern.compile(SEPARATOR + REAL_FIELD + REAL_FIELD);
/** Start index of the LOD part of the line. */
private static int LOD_START = 79;
/** end index of the LOD part of the line. */
private static int LOD_END = 93;
/** Pattern to match the LOD part of the line. */
private static final Pattern LOD_PATTERN = Pattern.compile(REAL_FIELD + REAL_FIELD);
/** Start index of the nutation part of the line. */
private static int NUTATION_START = 95;
/** end index of the nutation part of the line. */
private static int NUTATION_END = 134;
/** Pattern to match the nutation part of the line. */
private static final Pattern NUTATION_PATTERN = Pattern.compile(SEPARATOR + REAL_FIELD + REAL_FIELD + REAL_FIELD + REAL_FIELD);
/** History entries for IAU1980. */
private EOP1980History history1980;
/** History entries for IAU2000. */
private EOP2000History history2000;
/** File supported name. */
private String supportedNames;
/**
* Build a loader for IERS bulletins B files.
*
* @param supportedNames
* regular expression for supported files names
*/
public RapidDataAndPredictionColumnsLoader(final String supportedNames) {
this.supportedNames = supportedNames;
}
/** {@inheritDoc} */
public boolean stillAcceptsData() {
return true;
}
/** {@inheritDoc} */
public void loadData(final InputStream input, final String name)
throws OrekitException, IOException {
// set up a reader for line-oriented bulletin B files
final BufferedReader reader = new BufferedReader(new InputStreamReader(input));
// Init
double x = 0;
double y = 0;
double dtu1 = 0;
double lod = 0;
double dpsi = 0;
double deps = 0;
int date = 0;
for (String line = reader.readLine(); line != null; line = reader.readLine()) {
// split the lines in its various columns (some of them can be blank)
final String datePart = (line.length() >= DATE_END) ? line.substring(DATE_START, DATE_END).trim() : "";
final String polePart = (line.length() >= POLE_END) ? line.substring(POLE_START, POLE_END).trim() : "";
final String ut1utcPart = (line.length() >= UT1_UTC_END ) ? line.substring(UT1_UTC_START, UT1_UTC_END).trim() : "";
final String lodPart = (line.length() >= LOD_END) ? line.substring(LOD_START, LOD_END).trim() : "";
final String nutationPart = (line.length() >= NUTATION_END) ? line.substring(NUTATION_START, NUTATION_END).trim() : "";
// parse the date part
final Matcher dateMatcher = DATE_PATTERN.matcher(datePart);
if (dateMatcher.matches()) {
final int yy = Integer.parseInt(dateMatcher.group(1).trim());
final int mm = Integer.parseInt(dateMatcher.group(2).trim());
final int dd = Integer.parseInt(dateMatcher.group(3).trim());
final int yyyy = (yy > 70) ? yy + 1900 : yy + 2000;
date = Integer.parseInt(dateMatcher.group(4).trim());
final int reconstructedDate = new DateComponents(yyyy, mm, dd).getMJD();
if (reconstructedDate != date) {
notifyUnexpectedErrorEncountered(name);
}
} else {
notifyUnexpectedErrorEncountered(name);
}
// parse the pole part
if (polePart.length() == 0) {
// pole part is blank
x = 0;
y = 0;
} else {
final Matcher poleMatcher = POLE_PATTERN.matcher(polePart);
if (poleMatcher.matches()) {
x = ARC_SECONDS_TO_RADIANS * Double.parseDouble(poleMatcher.group(1));
y = ARC_SECONDS_TO_RADIANS * Double.parseDouble(poleMatcher.group(3));
} else {
notifyUnexpectedErrorEncountered(name);
}
}
// parse the UT1-UTC part
if (ut1utcPart.length() == 0) {
// UT1-UTC part is blank
dtu1 = 0;
} else {
final Matcher ut1utcMatcher = UT1_UTC_PATTERN.matcher(ut1utcPart);
if (ut1utcMatcher.matches()) {
dtu1 = Double.parseDouble(ut1utcMatcher.group(1));
} else {
notifyUnexpectedErrorEncountered(name);
}
}
// parse the lod part
if (lodPart.length() == 0) {
// lod part is blank
lod = 0;
} else {
final Matcher lodMatcher = LOD_PATTERN.matcher(lodPart);
if (lodMatcher.matches()) {
lod = MILLI_SECONDS_TO_SECONDS * Double.parseDouble(lodMatcher.group(1));
} else {
notifyUnexpectedErrorEncountered(name);
}
}
// parse the nutation part
if (nutationPart.length() == 0) {
// nutation part is blank
dpsi = 0;
deps = 0;
} else {
final Matcher nutationMatcher = NUTATION_PATTERN.matcher(nutationPart);
if (nutationMatcher.matches()) {
dpsi = MILLI_ARC_SECONDS_TO_RADIANS * Double.parseDouble(nutationMatcher.group(1));
deps = MILLI_ARC_SECONDS_TO_RADIANS * Double.parseDouble(nutationMatcher.group(3));
} else {
notifyUnexpectedErrorEncountered(name);
}
}
if (history1980 != null) {
history1980.addEntry(new EOP1980Entry(date, dtu1, lod, dpsi, deps));
}
if (history2000 != null) {
history2000.addEntry(new EOP2000Entry(date, dtu1, lod, x, y));
}
}
}
/** {@inheritDoc} */
public void fillHistory(final EOP1980History history) throws OrekitException {
synchronized (this) {
history1980 = history;
history2000 = null;
DataProvidersManager.getInstance().feed(supportedNames, this);
}
}
/** {@inheritDoc} */
public void fillHistory(final EOP2000History history) throws OrekitException {
synchronized (this) {
history1980 = null;
history2000 = history;
DataProvidersManager.getInstance().feed(supportedNames, this);
}
}
/** Throw an exception for an unexpected format error.
* @param name name of the file (or zip entry)
* @exception OrekitException always thrown to notify an unexpected error has been
* encountered by the caller
*/
private void notifyUnexpectedErrorEncountered(final String name) throws OrekitException {
throw new OrekitException("file {0} is not a supported IERS data file", name);
}
}
src/main/java/org/orekit/frames/RapidDataAndPredictionXMLLoader.java 0 → 100644
View file @ 7d4f4a1d
/* Copyright 2002-2011 CS Communication & Systèmes
* Licensed to CS Communication & Systèmes (CS) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* CS licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.orekit.frames;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParserFactory;
import org.orekit.data.DataProvidersManager;
import org.orekit.errors.OrekitException;
import org.orekit.time.DateComponents;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
/** Loader for IERS rapid data and prediction file in XML format (finals file).
* <p>Rapid data and prediction file contain {@link TimeStampedEntry
* Earth Orientation Parameters} for several years periods, in one file
* only that is updated regularly.</p>
* <p>The XML EOP files are recognized thanks to their base names, which
* must match one of the the patterns <code>finals.2000A.*.xml</code> or
* <code>finals.*.xml</code> (or the same ending with <code>.gz</code> for
* gzip-compressed files) where * stands for a word like "all", "daily",
* or "data".</p>
* <p>Files containing data (back to 1973) are available at IERS web site: <a
* href="http://www.iers.org/IERS/EN/DataProducts/EarthOrientationData/eop.html">Earth orientation data</a>.</p>
* @author Luc Maisonobe
* @version $Revision$ $Date$
*/
class RapidDataAndPredictionXMLLoader implements EOP1980HistoryLoader, EOP2000HistoryLoader {
/** Conversion factor. */
private static final double ARC_SECONDS_TO_RADIANS = 2 * Math.PI / 1296000;
/** Conversion factor. */
private static final double MILLI_ARC_SECONDS_TO_RADIANS = ARC_SECONDS_TO_RADIANS / 1000;
/** Conversion factor for milli seconds entries. */
private static final double MILLI_SECONDS_TO_SECONDS = 1.0 / 1000.0;
/** Regular expression for supported files names. */
private final String supportedNames;
/** History entries for IAU1980. */
private EOP1980History history1980;
/** History entries for IAU2000. */
private EOP2000History history2000;
/** Build a loader for IERS XML EOP files.
* @param supportedNames regular expression for supported files names
*/
public RapidDataAndPredictionXMLLoader(final String supportedNames) {
this.supportedNames = supportedNames;
}
/** {@inheritDoc} */
public boolean stillAcceptsData() {
return true;
}
/** {@inheritDoc} */
public void loadData(final InputStream input, final String name)
throws IOException, OrekitException {
try {
// set up a reader for line-oriented bulletin B files
final XMLReader reader = SAXParserFactory.newInstance().newSAXParser().getXMLReader();
reader.setContentHandler(new EOPContentHandler(name));
// read all file, ignoring header
synchronized (this) {
reader.parse(new InputSource(new InputStreamReader(input)));
}
} catch (SAXException se) {
if ((se.getCause() != null) && (se.getCause() instanceof OrekitException)) {
throw (OrekitException) se.getCause();
}
throw new OrekitException(se, "{0}", se.getMessage());
} catch (ParserConfigurationException pce) {
throw new OrekitException(pce, "{0}", pce.getMessage());
}
}
/** {@inheritDoc} */
public void fillHistory(final EOP1980History history)
throws OrekitException {
synchronized (this) {
history1980 = history;
history2000 = null;
DataProvidersManager.getInstance().feed(supportedNames, this);
}
}
/** {@inheritDoc} */
public void fillHistory(final EOP2000History history)
throws OrekitException {
synchronized (this) {
history1980 = null;
history2000 = history;
DataProvidersManager.getInstance().feed(supportedNames, this);
}
}
/** Local content handler for XML EOP files. */
private class EOPContentHandler extends DefaultHandler {
// CHECKSTYLE: stop JavadocVariable check
// elements and attributes used in both daily and finals data files
private static final String MJD_ELT = "MJD";
private static final String LOD_ELT = "LOD";
private static final String X_ELT = "X";
private static final String Y_ELT = "Y";
private static final String DPSI_ELT = "dPsi";
private static final String DEPSILON_ELT = "dEpsilon";
// elements and attributes specific to daily data files
private static final String DATA_EOP_ELT = "dataEOP";
private static final String TIME_SERIES_ELT = "timeSeries";
private static final String DATE_YEAR_ELT = "dateYear";
private static final String DATE_MONTH_ELT = "dateMonth";
private static final String DATE_DAY_ELT = "dateDay";
private static final String POLE_ELT = "pole";
private static final String UT_ELT = "UT";
private static final String UT1_U_UTC_ELT = "UT1_UTC";
private static final String NUTATION_ELT = "nutation";
private static final String SOURCE_ATTR = "source";
private static final String BULLETIN_A_SOURCE = "BulletinA";
// elements and attributes specific to finals data files
private static final String FINALS_ELT = "Finals";
private static final String DATE_ELT = "date";
private static final String EOP_SET_ELT = "EOPSet";
private static final String BULLETIN_A_ELT = "bulletinA";
private static final String UT1_M_UTC_ELT = "UT1-UTC";
private boolean inBulletinA;
private int year;
private int month;
private int day;
private int mjd;
private double dtu1;
private double lod;
private double x;
private double y;
private double dpsi;
private double deps;
// CHECKSTYLE: resume JavadocVariable check
/** File name. */
private final String name;
/** Buffer for read characters. */
private final StringBuffer buffer;
/** Indicator for daily data XML format or final data XML format. */
private DataFileContent content;
/** Simple constructor.
* @param name file name
*/