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The NetCDF-Java Library is a Java interface to NetCDF files,
as well as to many other types of scientific data formats.
The newest version!
/*
* Copyright 1998-2009 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
* and understandings on the user. The user is granted the right, without
* any fee or cost, to use, copy, modify, alter, enhance and distribute
* this software, and any derivative works thereof, and its supporting
* documentation for any purpose whatsoever, provided that this entire
* notice appears in all copies of the software, derivative works and
* supporting documentation. Further, UCAR requests that the user credit
* UCAR/Unidata in any publications that result from the use of this
* software or in any product that includes this software. The names UCAR
* and/or Unidata, however, may not be used in any advertising or publicity
* to endorse or promote any products or commercial entity unless specific
* written permission is obtained from UCAR/Unidata. The user also
* understands that UCAR/Unidata is not obligated to provide the user with
* any support, consulting, training or assistance of any kind with regard
* to the use, operation and performance of this software nor to provide
* the user with any updates, revisions, new versions or "bug fixes."
*
* 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,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package ucar.nc2.ft;
import ucar.nc2.dataset.NetcdfDataset;
import ucar.nc2.VariableSimpleIF;
import ucar.nc2.NetcdfFile;
import ucar.nc2.Attribute;
import ucar.nc2.time.CalendarDate;
import ucar.nc2.time.CalendarDateRange;
import ucar.nc2.util.cache.FileCache;
import ucar.nc2.units.DateRange;
import ucar.unidata.geoloc.LatLonRect;
import java.util.*;
import java.io.IOException;
/**
* Abstract superclass for implementations of FeatureDataset.
* Subclass must implement getFeatureClass(), and add specific functionality.
* @author caron
* @since Sep 7, 2007
*/
public abstract class FeatureDatasetImpl implements FeatureDataset {
protected NetcdfDataset ncfile;
protected String title, desc, location;
protected List dataVariables;
protected Formatter parseInfo = new Formatter();
protected CalendarDateRange dateRange;
protected LatLonRect boundingBox;
// for subsetting
protected FeatureDatasetImpl(FeatureDatasetImpl from) {
this.ncfile = from.ncfile;
this.title = from.title;
this.desc = from.desc;
this.location = from.location;
this.dataVariables = new ArrayList( from.dataVariables);
this.parseInfo = new Formatter();
String fromInfo = from.parseInfo.toString().trim();
if (fromInfo.length() > 0)
parseInfo.format("%s\n", fromInfo);
this.parseInfo.format("Subsetted from original\n");
}
/** No-arg constuctor */
public FeatureDatasetImpl() {}
/** Constructor when theres no NetcdfFile underneath.
*
* @param title title of the dataset.
* @param description description of the dataset.
* @param location URI of the dataset
*/
public FeatureDatasetImpl(String title, String description, String location) {
this.title = title;
this.desc = description;
this.location = location;
}
/** Constructor when theres a NetcdfFile underneath
* @param ncfile adapt this NetcdfDataset
*/
public FeatureDatasetImpl(NetcdfDataset ncfile) {
this.ncfile = ncfile;
this.location = ncfile.getLocation();
this.title = ncfile.getTitle();
if (title == null)
title = ncfile.findAttValueIgnoreCase(null, "title", null);
if (desc == null)
desc = ncfile.findAttValueIgnoreCase(null, "description", null);
}
protected void setTitle( String title) { this.title = title; }
protected void setDescription( String desc) { this.desc = desc; }
protected void setLocationURI( String location) {this.location = location; }
protected void setDateRange(CalendarDateRange dateRange) { this.dateRange = dateRange; }
protected void setBoundingBox(LatLonRect boundingBox) { this.boundingBox = boundingBox; }
/* protected void removeDataVariable( String varName) {
if (dataVariables == null) return;
Iterator iter = dataVariables.iterator();
while (iter.hasNext()) {
VariableSimpleIF v = (VariableSimpleIF) iter.next();
if (v.getName().equals( varName) )
iter.remove();
}
} */
/////////////////////////////////////////////////
public NetcdfFile getNetcdfFile() { return ncfile; }
public String getTitle() { return title; }
public String getDescription() { return desc; }
public String getLocation() {return location; }
public List getGlobalAttributes() {
if (ncfile == null) return new ArrayList();
return ncfile.getGlobalAttributes();
}
public Attribute findGlobalAttributeIgnoreCase( String name ) {
if (ncfile == null) return null;
return ncfile.findGlobalAttributeIgnoreCase( name);
}
public void getDetailInfo( java.util.Formatter sf) {
sf.format("FeatureDataset on location= %s\n", getLocation());
sf.format(" featureType= %s\n",getFeatureType());
sf.format(" title= %s\n",getTitle());
sf.format(" desc= %s\n",getDescription());
sf.format(" range= %s\n",getCalendarDateRange());
sf.format(" start= %s\n", getCalendarDateEnd());
sf.format(" end = %s\n",getCalendarDateEnd());
LatLonRect bb = getBoundingBox();
sf.format(" bb = %s\n", bb);
if (bb != null)
sf.format(" bb = %s\n",getBoundingBox().toString2());
sf.format(" has netcdf = %b\n", (getNetcdfFile() != null));
List ga = getGlobalAttributes();
if (ga.size() > 0) {
sf.format(" Attributes\n");
for (Attribute a : ga)
sf.format(" %s\n",a);
}
List vars = getDataVariables();
sf.format(" Data Variables (%d)\n",vars.size());
for (VariableSimpleIF v : vars)
sf.format(" name='%s' desc='%s' units=%s' type='%s'\n", v.getShortName(),v.getDescription(),v.getUnitsString(),v.getDataType());
sf.format("\nparseInfo=\n%s\n", parseInfo);
}
@Override
public CalendarDateRange getCalendarDateRange() {
return dateRange;
}
@Override
public CalendarDate getCalendarDateStart() {
return (dateRange == null) ? null : dateRange.getStart();
}
@Override
public CalendarDate getCalendarDateEnd() {
return (dateRange == null) ? null : dateRange.getEnd();
}
public DateRange getDateRange() { return (dateRange == null) ? null : dateRange.toDateRange(); }
public Date getStartDate() { return (getDateRange() == null) ? null : getDateRange().getStart().getDate(); }
public Date getEndDate() { return (getDateRange() == null) ? null : getDateRange().getEnd().getDate(); }
public LatLonRect getBoundingBox() { return boundingBox; }
public List getDataVariables() {
return (dataVariables == null) ? new ArrayList() : dataVariables;
}
public VariableSimpleIF getDataVariable( String shortName) {
for (VariableSimpleIF s : getDataVariables()) {
String ss = s.getShortName();
if (shortName.equals(ss)) return s;
}
return null;
}
public String getImplementationName() {
return getClass().getName();
}
//////////////////////////////////////////////////
// FileCacheable
@Override
public synchronized void close() throws java.io.IOException {
if (fileCache != null) {
fileCache.release(this);
} else {
try {
if (ncfile != null) ncfile.close();
} finally {
ncfile = null;
}
}
}
/* @Override
public boolean sync() throws IOException {
return false;
} */
@Override
public long getLastModified() {
return (ncfile != null) ? ncfile.getLastModified() : 0;
}
protected FileCache fileCache;
@Override
public void setFileCache(FileCache fileCache) {
this.fileCache = fileCache;
}
}