/*
* Copyright 1998-2014 University Corporation for Atmospheric Research/Unidata
*
* Portions of this software were developed by the Unidata Program at the
* University Corporation for Atmospheric Research.
*
* Access and use of this software shall impose the following obligations
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* any fee or cost, to use, copy, modify, alter, enhance and distribute
* this software, and any derivative works thereof, and its supporting
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* software or in any product that includes this software. The names UCAR
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*
* THIS SOFTWARE IS PROVIDED BY UCAR/UNIDATA "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
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*/
package ucar.nc2.ft.point.standard;
import ucar.nc2.ft.point.SectionCollectionImpl;
import ucar.nc2.ft.point.ProfileFeatureImpl;
import ucar.nc2.ft.point.SectionFeatureImpl;
import ucar.nc2.ft.*;
import ucar.nc2.units.DateUnit;
import ucar.ma2.StructureData;
import ucar.ma2.StructureDataIterator;
import ucar.unidata.geoloc.LatLonRect;
import java.io.IOException;
import java.util.Date;
/**
* Nested Table implementation of SectionCollection.
* a collection of section features
*
* @author caron
* @since Oct 22, 2009
*/
public class StandardSectionCollectionImpl extends SectionCollectionImpl {
private NestedTable ft;
StandardSectionCollectionImpl(NestedTable ft, DateUnit timeUnit, String altUnits) throws IOException {
super(ft.getName(), timeUnit, altUnits);
this.ft = ft;
this.extras = ft.getExtras();
}
@Override
public NestedPointFeatureCollectionIterator getNestedPointFeatureCollectionIterator(int bufferSize) throws IOException {
return new NestedPointFeatureCollectionIterator() {
private StructureDataIterator sdataIter = ft.getRootFeatureDataIterator(-1);
private StructureData nextSection;
public SectionFeature next() throws IOException {
Cursor cursor = new Cursor(ft.getNumberOfLevels());
cursor.recnum[2] = sdataIter.getCurrentRecno();
cursor.tableData[2] = nextSection; // obs(leaf) = 0, profile=1, section(root)=2
cursor.currentIndex = 2;
ft.addParentJoin(cursor); // there may be parent joins
return new StandardSectionFeature(cursor, nextSection);
}
public boolean hasNext() throws IOException {
while (true) {
if (!sdataIter.hasNext()) return false;
nextSection = sdataIter.next();
if (!ft.isFeatureMissing(nextSection)) break;
}
return true;
}
public void setBufferSize(int bytes) {
}
@Override
public void finish() {
sdataIter.finish();
}
};
}
// a single section: a collection of profiles along a trajectory
private class StandardSectionFeature extends SectionFeatureImpl {
Cursor cursor;
StructureData sectionData;
StandardSectionFeature(Cursor cursor, StructureData sectionData) {
super(ft.getFeatureName(cursor), StandardSectionCollectionImpl.this.getTimeUnit(), StandardSectionCollectionImpl.this.getAltUnits());
this.cursor = cursor;
this.sectionData = sectionData;
}
@Override
public PointFeatureCollectionIterator getPointFeatureCollectionIterator(int bufferSize) throws IOException {
return new StandardSectionFeatureIterator(cursor.copy());
}
@Override
public NestedPointFeatureCollection subset(LatLonRect boundingBox) throws IOException {
return null; //To change body of implemented methods use File | Settings | File Templates.
}
public StructureData getFeatureData() throws IOException {
return sectionData;
}
}
private class StandardSectionFeatureIterator implements PointFeatureCollectionIterator {
Cursor cursor;
private ucar.ma2.StructureDataIterator iter;
StructureData profileData;
StandardSectionFeatureIterator(Cursor cursor) throws IOException {
this.cursor = cursor;
iter = ft.getMiddleFeatureDataIterator(cursor, -1);
}
public boolean hasNext() throws IOException {
return iter.hasNext();
}
public PointFeatureCollection next() throws IOException {
Cursor cursorIter = cursor.copy();
profileData = iter.next();
cursorIter.tableData[1] = profileData;
cursorIter.recnum[1] = iter.getCurrentRecno();
cursorIter.currentIndex = 1;
ft.addParentJoin(cursor); // there may be parent joins
// double time = ft.getObsTime(cursorIter);
return new StandardSectionProfileFeature(cursorIter, ft.getObsTime(cursor), profileData);
}
public void setBufferSize(int bytes) {
iter.setBufferSize(bytes);
}
@Override
public void finish() {
iter.finish();
}
}
// LOOK duplicate from StandardProfileCollection - also check StationProfile
private class StandardSectionProfileFeature extends ProfileFeatureImpl {
Cursor cursor;
StructureData profileData;
StandardSectionProfileFeature( Cursor cursor, double time, StructureData profileData) {
super( ft.getFeatureName(cursor), StandardSectionCollectionImpl.this.getTimeUnit(), StandardSectionCollectionImpl.this.getAltUnits(),
ft.getLatitude(cursor), ft.getLongitude(cursor), time, -1);
/* StandardSectionProfileFeature(Cursor cursor, double time, StructureData profileData) {
super( StandardSectionCollectionImpl.this.getTimeUnit().makeStandardDateString(time),
StandardSectionCollectionImpl.this.getTimeUnit(), StandardSectionCollectionImpl.this.getAltUnits(),
ft.getLatitude(cursor), ft.getLongitude(cursor), time, -1); */
this.cursor = cursor;
this.profileData = profileData;
if (Double.isNaN(time)) { // gotta read an obs to get the time
try {
PointFeatureIterator iter = getPointFeatureIterator(-1);
if (iter.hasNext()) {
PointFeature pf = iter.next();
this.time = pf.getObservationTime();
this.name = timeUnit.makeStandardDateString(this.time);
} else {
this.name = "empty";
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
public PointFeatureIterator getPointFeatureIterator(int bufferSize) throws IOException {
Cursor cursorIter = cursor.copy();
StructureDataIterator siter = ft.getLeafFeatureDataIterator(cursorIter, bufferSize);
StandardPointFeatureIterator iter = new StandardSectionProfileFeatureIterator(ft, timeUnit, siter, cursorIter);
if ((boundingBox == null) || (dateRange == null) || (npts < 0))
iter.setCalculateBounds(this);
return iter;
}
@Override
public Date getTime() {
return timeUnit.makeDate(time);
}
@Override
public StructureData getFeatureData() throws IOException {
return profileData;
}
}
private static class StandardSectionProfileFeatureIterator extends StandardPointFeatureIterator {
StandardSectionProfileFeatureIterator(NestedTable ft, DateUnit timeUnit, StructureDataIterator structIter, Cursor cursor) throws IOException {
super(ft, timeUnit, structIter, cursor);
}
@Override
protected boolean isMissing() throws IOException {
if (super.isMissing()) return true;
// must also check for missing z values
return ft.isAltMissing(this.cursor);
}
}
}