package thredds.catalog;
import org.slf4j.Logger;
import thredds.featurecollection.FeatureCollectionConfig;
import thredds.inventory.CollectionUpdateType;
import ucar.nc2.Attribute;
import ucar.nc2.ft.FeatureDataset;
import ucar.nc2.ft.FeatureDatasetPoint;
import ucar.nc2.ft.point.PointDatasetImpl;
import ucar.nc2.ft.point.collection.CompositeDatasetFactory;
import ucar.nc2.ft.point.collection.UpdateableCollection;
import ucar.nc2.thredds.MetadataExtractor;
import ucar.nc2.thredds.MetadataExtractorAcdd;
import ucar.unidata.util.StringUtil2;
import java.io.IOException;
import java.net.URI;
import java.util.*;
/**
* InvDataset Feature Collection for Point types.
* Implement with CompositeDatasetFactory
*
* @author caron
* @since Nov 20, 2010
*/
public class InvDatasetFcPoint extends InvDatasetFeatureCollection {
static private final Logger logger = org.slf4j.LoggerFactory.getLogger(InvDatasetFcPoint.class);
static private final String FC = "fc.cdmr";
static private final InvService collectionService = new InvService("collectionService", ServiceType.COMPOUND.toString(), "", "", "");
//static private final InvService fileService = new InvService("fileService", ServiceType.COMPOUND.toString(), "", "", "");
// LOOK ignoring the configured services
static {
//collectionService.addService( InvService.cdmrfeature);
collectionService.addService( InvService.ncss);
//fileService.addService( InvService.opendap);
//fileService.addService( InvService.cdmremote);
//fileService.addService( InvService.fileServer);
}
private final FeatureDatasetPoint fd; // LOOK this stays open
private final Set<FeatureCollectionConfig.PointDatasetType> wantDatasets;
InvDatasetFcPoint(InvDatasetImpl parent, FeatureCollectionConfig config) {
super(parent, config);
makeCollection();
Formatter errlog = new Formatter();
try {
fd = (FeatureDatasetPoint) CompositeDatasetFactory.factory(name, fcType.getFeatureType(), datasetCollection, errlog);
} catch (Exception e) {
if (e.getCause() != null)
throw new RuntimeException("Failed to create InvDatasetFcPoint, cause=", e.getCause());
else
throw new RuntimeException("Failed to create InvDatasetFcPoint", e);
}
state = new State(null);
this.wantDatasets = config.pointConfig.datasets;
}
@Override
public void finishConstruction() {
super.finishConstruction();
finish();
ThreddsMetadata tmi = getLocalMetadataInheritable();
// pull out ACDD metadata from feature collection and put into the catalog
MetadataExtractorAcdd acdd = new MetadataExtractorAcdd( Attribute.makeMap(fd.getGlobalAttributes()), this, tmi);
acdd.extract();
finish();
// spatial coverage
if (fd.getBoundingBox() == null) {
// pull out catalog BB, put into the feature collection. this will override ACDD
thredds.catalog.ThreddsMetadata.GeospatialCoverage coverage = getGeospatialCoverage();
if (coverage != null)
((PointDatasetImpl) fd).setBoundingBox(coverage.getBoundingBox()); // override in fd
} else if (getGeospatialCoverage() == null) {
tmi.setGeospatialCoverage( MetadataExtractor.extractGeospatial(fd));
}
tmi.addVariables(MetadataExtractor.extractVariables(fd));
finish();
}
@Override
public FeatureDataset getFeatureDataset() {
return fd;
}
/* @Override
public void update(CollectionManager.Force force) { // this may be called from a background thread
// deal with the first call
boolean firstTime;
synchronized (lock) {
firstTime = first;
}
if (firstTime) {
try {
checkState(); // this will initialize, no update needed
} catch (IOException e) {
logger.error("Fail to create/update collection on first time", e);
}
return;
}
// do the update in a local object
State localState = new State(state);
try {
updateCollection(localState, force);
} catch (Throwable e) {
logger.error("Fail to create/update collection", e);
return;
}
makeDatasetTop(localState);
localState.lastInvChange = System.currentTimeMillis();
// switch to live
synchronized (lock) {
state = localState;
}
} */
@Override
public void updateCollection(State localState, CollectionUpdateType force) {
try {
localState.dateRange = ((UpdateableCollection)fd).update();
} catch (IOException e) {
logger.error("update failed", e);
}
/* time coverage = expect it may be changing
if (fd.getCalendarDateRange() != null)
localState.dateRange = fd.getCalendarDateRange();
else if (getTimeCoverage() != null)
localState.dateRange = getCalendarDateCoverage(); */
}
/* called when a request comes in, see if everything is ready to go
// in particular, state.datasets and state.scan
@Override
protected State checkState() throws IOException {
synchronized (lock) {
if (first) {
firstInit();
datasetCollection.scanIfNeeded(); //always fall through to updateCollection
first = false;
} else {
if (!datasetCollection.scanIfNeeded()) // return is not needed
return state;
}
// copy on write
State localState = new State(state);
makeDatasetTop(localState); // doesnt actually change i think
update(CollectionManager.Force.test); // call update on the fd
state = localState;
return state;
}
} */
@Override
public InvCatalogImpl makeCatalog(String match, String orgPath, URI catURI) throws IOException {
logger.debug("FcPoint make catalog for " + match + " " + catURI);
State localState = checkState();
try {
if ((match == null) || (match.length() == 0)) {
InvCatalogImpl main = makeCatalogTop(catURI, localState);
main.addService(collectionService);
main.getDataset().getLocalMetadataInheritable().setServiceName(collectionService.getName());
main.finish();
return main;
} else if (match.startsWith(FILES) && wantDatasets.contains(FeatureCollectionConfig.PointDatasetType.Files)) {
return makeCatalogFiles(catURI, localState, datasetCollection.getFilenames(), true);
}
} catch (Exception e) {
logger.error("Error making catalog for " + configPath, e);
}
return null;
}
@Override
protected void makeDatasetTop(State localState) {
InvDatasetImpl top = new InvDatasetImpl(this);
top.setParent(null);
InvDatasetImpl parent = (InvDatasetImpl) this.getParent();
if (parent != null)
top.transferMetadata(parent, true); // make all inherited metadata local
String id = getID();
if (id == null) id = getPath();
//top.setID(id);
ThreddsMetadata tmi = top.getLocalMetadataInheritable();
if (localState.dateRange != null) tmi.setTimeCoverage(localState.dateRange);
if (wantDatasets.contains(FeatureCollectionConfig.PointDatasetType.cdmrFeature)) {
InvDatasetImpl ds = new InvDatasetImpl(this, "Feature Collection");
String name = getName() + "_" + FC;
name = StringUtil2.replace(name, ' ', "_");
ds.setUrlPath(this.configPath + "/" + name);
ds.setID(id + "/" + name);
ThreddsMetadata tm = ds.getLocalMetadata();
ds.getLocalMetadataInheritable().setServiceName(collectionService.getName());
ds.finish();
top.addDataset(ds);
}
if (wantDatasets.contains(FeatureCollectionConfig.PointDatasetType.Files) && (topDirectory != null)) {
InvCatalogRef filesCat = new InvCatalogRef(this, FILES, getCatalogHref(FILES));
filesCat.finish();
top.addDataset(filesCat);
}
localState.top = top;
finish();
}
/*
@Override
public ucar.nc2.dt.grid.GridDataset getGridDataset(String matchPath) throws IOException {
return null;
}
@Override
public NetcdfDataset getNetcdfDataset(String matchPath) throws IOException {
return null;
} */
}