// read all records in all files,
// divide into groups based on GDS hash
// each group has an arraylist of all records that belong to it.
// for each group, run rectlizer to derive the coordinates and variables
public List<Group> makeAggregatedGroups(
ArrayList<String> filenames, CollectionManager.Force force, Formatter f) throws IOException {
Map<Integer, Group> gdsMap = new HashMap<Integer, Group>();
f.format("GribCollection %s: makeAggregatedGroups%n", gc.getName());
int total = 0;
int fileno = 0;
for (CollectionManager dcm : collections) {
// dcm.scanIfNeeded(); // LOOK ??
f.format(" dcm= %s%n", dcm);
Map<Integer, Integer> gdsConvert = (Map<Integer, Integer>) dcm.getAuxInfo("gdsHash");
for (MFile mfile : dcm.getFiles()) {
// f.format("%3d: %s%n", fileno, mfile.getPath());
filenames.add(mfile.getPath());
Grib2Index index = new Grib2Index();
try {
if (!index.readIndex(
mfile.getPath(),
mfile.getLastModified(),
force)) { // heres where the index date is checked against the data file
index.makeIndex(mfile.getPath(), f);
f.format(
" Index written: %s == %d records %n",
mfile.getName() + Grib2Index.IDX_EXT, index.getRecords().size());
} else if (debug) {
f.format(
" Index read: %s == %d records %n",
mfile.getName() + Grib2Index.IDX_EXT, index.getRecords().size());
}
} catch (IOException ioe) {
f.format(
"GribCollectionBuilder: reading/Creating gbx9 index failed err=%s%n skipping %s%n",
ioe.getMessage(), mfile.getPath() + Grib2Index.IDX_EXT);
continue;
}
for (Grib2Record gr : index.getRecords()) {
gr.setFile(fileno); // each record tracks which file it belongs to
int gdsHash =
gr.getGDSsection().getGDS().hashCode(); // use GDS hash code to group records
if (gdsConvert != null
&& gdsConvert.get(gdsHash)
!= null) { // allow external config to muck with gdsHash. Why? because of error in
// encoding
gdsHash = (Integer) gdsConvert.get(gdsHash); // and we need exact hash matching
}
Group g = gdsMap.get(gdsHash);
if (g == null) {
g = new Group(gr.getGDSsection(), gdsHash);
gdsMap.put(gdsHash, g);
}
g.records.add(gr);
total++;
}
fileno++;
}
}
f.format(" total grib records= %d%n", total);
Grib2Rectilyser.Counter c = new Grib2Rectilyser.Counter();
List<Group> result = new ArrayList<Group>(gdsMap.values());
for (Group g : result) {
g.rect = new Grib2Rectilyser(g.records, g.gdsHash);
f.format(" GDS hash %d == ", g.gdsHash);
g.rect.make(f, c);
}
f.format(
" Rectilyser: nvars=%d records unique=%d total=%d dups=%d (%f) %n",
c.vars, c.recordsUnique, c.records, c.dups, ((float) c.dups) / c.records);
return result;
}
// return true if got another repeat out of this record
// side effect is that the new record is in repeatRecord
private boolean nextRepeating() throws IOException {
raf.seek(repeatPos);
// octets 1-4 (Length of GDS)
int length = GribNumbers.int4(raf);
int section = raf.read();
raf.seek(repeatPos);
if (section == 2) {
repeatRecord.setLus(new Grib2SectionLocalUse(raf));
repeatRecord.setGdss(new Grib2SectionGridDefinition(raf));
repeatRecord.setPdss(new Grib2SectionProductDefinition(raf));
repeatRecord.setDrs(new Grib2SectionDataRepresentation(raf));
repeatRecord.setBms(new Grib2SectionBitMap(raf), false);
repeatRecord.setDataSection(new Grib2SectionData(raf));
repeatRecord.repeat = section;
} else if (section == 3) {
repeatRecord.setGdss(new Grib2SectionGridDefinition(raf));
repeatRecord.setPdss(new Grib2SectionProductDefinition(raf));
repeatRecord.setDrs(new Grib2SectionDataRepresentation(raf));
repeatRecord.setBms(new Grib2SectionBitMap(raf), false);
repeatRecord.setDataSection(new Grib2SectionData(raf));
repeatRecord.repeat = section;
} else if (section == 4) {
repeatRecord.setPdss(new Grib2SectionProductDefinition(raf));
repeatRecord.setDrs(new Grib2SectionDataRepresentation(raf));
repeatRecord.setBms(new Grib2SectionBitMap(raf), false);
repeatRecord.setDataSection(new Grib2SectionData(raf));
repeatRecord.repeat = section;
} else {
if (debugRepeat) System.out.printf(" REPEAT Terminate %d%n", section);
repeatPos = -1;
repeatRecord = null;
repeatBms = null;
return false;
}
// look for repeating bms
Grib2SectionBitMap bms = repeatRecord.getBitmapSection();
if (bms.getBitMapIndicator() == 254) {
// replace BMS with last good one
if (repeatBms == null) throw new IllegalStateException("No bms in repeating section");
repeatRecord.setBms(repeatBms, true);
// debug
if (debugRepeat) System.out.printf("replaced bms %d%n", section);
repeatRecord.repeat += 1000;
} else if (bms.getBitMapIndicator() == 0) {
// track last good bms
repeatBms = repeatRecord.getBitmapSection();
}
// keep only unique gds
if ((section == 2) || (section == 3)) {
// look for duplicate gds
Grib2SectionGridDefinition gds = repeatRecord.getGDSsection();
long crc = gds.calcCRC();
Grib2SectionGridDefinition gdsCached = gdsMap.get(crc);
if (gdsCached != null) repeatRecord.setGdss(gdsCached);
else gdsMap.put(crc, gds);
}
// check to see if we are at the end
long pos = raf.getFilePointer();
long ending = repeatRecord.getIs().getEndPos();
if (pos + 34 < ending) { // give it 30 bytes of slop
if (debugRepeat) System.out.printf(" REPEAT AGAIN %d != %d%n", pos + 4, ending);
repeatPos = pos;
return true;
}
if (debug)
System.out.printf(
" REPEAT read until %d grib ending at %d header ='%s'%n",
raf.getFilePointer(), ending, StringUtil2.cleanup(header));
// check that end section is correct
raf.seek(ending - 4);
for (int i = 0; i < 4; i++) {
if (raf.read() != 55) {
log.warn(
" REPEAT Missing End of GRIB message at pos="
+ ending
+ " header= "
+ StringUtil2.cleanup(header)
+ " for="
+ raf.getLocation());
break;
}
}
lastPos = raf.getFilePointer();
if (debugRepeat) System.out.printf(" REPEAT DONE%n");
repeatPos = -1; // no more repeats in this record
return true;
}
// read all records in all files,
// divide into groups based on GDS hash
// each group has an arraylist of all records that belong to it.
// for each group, run rectlizer to derive the coordinates and variables
public List<Group> makeAggregatedGroups(
List<String> filenames, CollectionManager.Force force, Formatter f) throws IOException {
Map<Integer, Group> gdsMap = new HashMap<Integer, Group>();
boolean intvMerge = mergeIntvDefault;
f.format("GribCollection %s: makeAggregatedGroups%n", gc.getName());
int total = 0;
int fileno = 0;
for (CollectionManager dcm : collections) {
f.format(" dcm= %s%n", dcm);
FeatureCollectionConfig.GribConfig config =
(FeatureCollectionConfig.GribConfig)
dcm.getAuxInfo(FeatureCollectionConfig.AUX_GRIB_CONFIG);
Map<Integer, Integer> gdsConvert = (config != null) ? config.gdsHash : null;
FeatureCollectionConfig.GribIntvFilter intvMap = (config != null) ? config.intvFilter : null;
intvMerge =
(config == null) || (config.intvMerge == null) ? mergeIntvDefault : config.intvMerge;
for (MFile mfile : dcm.getFiles()) {
// f.format("%3d: %s%n", fileno, mfile.getPath());
filenames.add(mfile.getPath());
Grib2Index index = null;
try {
index =
(Grib2Index)
GribIndex.readOrCreateIndexFromSingleFile(
false, !isSingleFile, mfile, config, force, f);
} catch (IOException ioe) {
logger.warn(
"GribCollectionBuilder {}: reading/Creating gbx9 index failed err={}",
gc.getName(),
ioe.getMessage());
f.format(
"GribCollectionBuilder: reading/Creating gbx9 index failed err=%s%n skipping %s%n",
ioe.getMessage(), mfile.getPath() + GribIndex.IDX_EXT);
continue;
}
for (Grib2Record gr : index.getRecords()) {
if (this.tables == null) {
Grib2SectionIdentification ids =
gr.getId(); // so all records must use the same table (!)
this.tables =
Grib2Customizer.factory(
ids.getCenter_id(),
ids.getSubcenter_id(),
ids.getMaster_table_version(),
ids.getLocal_table_version());
if (config != null)
tables.setTimeUnitConverter(
config
.getTimeUnitConverter()); // LOOK doesnt really work with multiple collections
}
if (intvMap != null && filterTinv(gr, intvMap, f)) continue; // skip
gr.setFile(fileno); // each record tracks which file it belongs to
int gdsHash =
gr.getGDSsection().getGDS().hashCode(); // use GDS hash code to group records
if (gdsConvert != null
&& gdsConvert.get(gdsHash)
!= null) // allow external config to muck with gdsHash. Why? because of error in
// encoding
gdsHash = (Integer) gdsConvert.get(gdsHash); // and we need exact hash matching
Group g = gdsMap.get(gdsHash);
if (g == null) {
g = new Group(gr.getGDSsection(), gdsHash);
gdsMap.put(gdsHash, g);
}
g.records.add(gr);
total++;
}
fileno++;
}
}
f.format(" total grib records= %d%n", total);
Grib2Rectilyser.Counter c = new Grib2Rectilyser.Counter(); // debugging
List<Group> result = new ArrayList<Group>(gdsMap.values());
for (Group g : result) {
g.rect = new Grib2Rectilyser(tables, g.records, g.gdsHash, intvMerge);
f.format(" GDS hash %d == ", g.gdsHash);
g.rect.make(f, c, filenames);
}
f.format(
" Rectilyser: nvars=%d records unique=%d total=%d dups=%d (%f) %n",
c.vars, c.recordsUnique, c.records, c.dups, ((float) c.dups) / c.records);
return result;
}
