ucar.nc2.iosp.noaa.StructureDataRegexp Maven / Gradle / Ivy
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/*
* Copyright (c) 1998-2018 John Caron and University Corporation for Atmospheric Research/Unidata
* See LICENSE for license information.
*/
package ucar.nc2.iosp.noaa;
import ucar.ma2.*;
import ucar.unidata.io.RandomAccessFile;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Create a StructureData by using a java.util.regex.Pattern on an ascii file.
*
* @author caron
* @since Feb 26, 2011
*/
public class StructureDataRegexp extends StructureData {
protected Matcher matcher;
public StructureDataRegexp(StructureMembers members, Matcher m) {
super(members);
this.matcher = m;
}
protected Object parse(DataType dt, VinfoField vinfo) throws NumberFormatException {
return parse(dt, vinfo, vinfo.fldno);
}
protected Object parse(DataType dt, VinfoField vinfo, int fldno) throws NumberFormatException {
String svalue;
if (fldno <= matcher.groupCount())
svalue = matcher.group(fldno);
else
svalue = " ";
// System.out.printf("HEY! %d>= %d %n", field, matcher.groupCount());
//String svalue = matcher.group(field);
if (dt == DataType.STRING)
return svalue.trim();
else if (dt == DataType.CHAR)
return svalue;
try {
svalue = svalue.trim();
boolean isBlank = (svalue.length() == 0);
if (dt == DataType.DOUBLE)
return isBlank ? 0.0 : new Double(svalue);
else if (dt == DataType.FLOAT) {
float result = isBlank ? 0.0f : new Float(svalue);
return (vinfo.hasScale) ? result * vinfo.scale : result;
} else if (dt == DataType.INT) {
return isBlank ? 0 : new Integer(svalue);
}
else if (dt == DataType.LONG)
return isBlank ? 0L : new Long(svalue);
} catch (NumberFormatException e) {
System.out.printf(" %d = <%s> %n", fldno, svalue);
throw e;
}
return null;
}
@Override
public Array getArray(StructureMembers.Member m) {
VinfoField f = (VinfoField) m.getDataObject();
if (m.getDataType() == DataType.STRING) {
String result = matcher.group(f.fldno);
return Array.factory(DataType.STRING, new int[] {}, new Object[] {result.trim()});
} else if (m.getDataType() == DataType.SEQUENCE) {
return getArraySequence(m);
} else if (!m.isScalar()) {
if (m.getDataType() == DataType.FLOAT) {
float[] ja = getJavaArrayFloat(m);
return Array.factory(DataType.FLOAT, m.getShape(), ja);
} else if (m.getDataType() == DataType.CHAR) {
char[] ja = getJavaArrayChar(m);
return Array.factory(DataType.CHAR, m.getShape(), ja);
} else if (m.getDataType() == DataType.BYTE) {
byte[] ja = getJavaArrayByte(m);
return Array.factory(DataType.BYTE, m.getShape(), ja);
}
}
Object result = parse(m.getDataType(), f);
if (m.getDataType() == DataType.CHAR)
return new ArrayChar((String) result);
else
return new ArrayScalar(result, m.getDataType().isUnsigned());
}
@Override
public float convertScalarFloat(StructureMembers.Member m) {
VinfoField f = (VinfoField) m.getDataObject();
return ((Number) parse(m.getDataType(), f)).floatValue();
}
@Override
public double convertScalarDouble(StructureMembers.Member m) {
VinfoField f = (VinfoField) m.getDataObject();
return ((Number) parse(m.getDataType(), f)).doubleValue();
}
@Override
public int convertScalarInt(StructureMembers.Member m) {
VinfoField f = (VinfoField) m.getDataObject();
return ((Number) parse(m.getDataType(), f)).intValue();
}
@Override
public long convertScalarLong(StructureMembers.Member m) {
VinfoField f = (VinfoField) m.getDataObject();
return ((Number) parse(m.getDataType(), f)).longValue();
}
@Override
public double getScalarDouble(StructureMembers.Member m) {
VinfoField f = (VinfoField) m.getDataObject();
return (Double) parse(m.getDataType(), f);
}
@Override
public double[] getJavaArrayDouble(StructureMembers.Member m) {
return new double[0]; //To change body of implemented methods use File | Settings | File Templates.
}
@Override
public float getScalarFloat(StructureMembers.Member m) {
VinfoField f = (VinfoField) m.getDataObject();
Object result = parse(m.getDataType(), f);
return (result instanceof Float) ? (Float) result : ((Double) result).floatValue();
}
@Override
public float[] getJavaArrayFloat(StructureMembers.Member m) {
int n = m.getSize();
float[] result = new float[n];
VinfoField f = (VinfoField) m.getDataObject();
for (int i=0; i