ucar.nc2.iosp.noaa.StructureDataRegexp Maven / Gradle / Ivy

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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.
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package ucar.nc2.iosp.noaa;

import ucar.ma2.*;
import ucar.unidata.util.StringUtil;

import java.util.regex.Matcher;

/**
 * Class Description.
 *
 * @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, Ghcnm2.VinfoField vinfo) throws NumberFormatException {
    return parse(dt, vinfo, vinfo.fldno);
  }

  protected Object parse(DataType dt, Ghcnm2.VinfoField vinfo, int fldno) throws NumberFormatException {
    String svalue = (fldno < matcher.groupCount()) ? matcher.group(fldno) : " ";
    //  System.out.printf("HEY! %d>= %d %n", field, matcher.groupCount());
    //String svalue = matcher.group(field);

    if ((dt == DataType.STRING) || (dt == DataType.CHAR))
      return svalue;

    try {
      svalue = StringUtil.remove(svalue, ' ');
      boolean isBlank = (svalue.trim().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 ? 0 : 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) {
    Ghcnm2.VinfoField f = (Ghcnm2.VinfoField) m.getDataObject();

    if (m.getDataType() == DataType.STRING) {
      String result = matcher.group(f.fldno);
      return new ArrayObject(String.class, 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);
  }

  @Override
  public float convertScalarFloat(StructureMembers.Member m) {
    Ghcnm2.VinfoField f = (Ghcnm2.VinfoField) m.getDataObject();
    return ((Number) parse(m.getDataType(), f)).floatValue();
  }

  @Override
  public double convertScalarDouble(StructureMembers.Member m) {
    Ghcnm2.VinfoField f = (Ghcnm2.VinfoField) m.getDataObject();
    return ((Number) parse(m.getDataType(), f)).doubleValue();
  }

  @Override
  public int convertScalarInt(StructureMembers.Member m) {
    Ghcnm2.VinfoField f = (Ghcnm2.VinfoField) m.getDataObject();
    return ((Number) parse(m.getDataType(), f)).intValue();
  }

  @Override
  public long convertScalarLong(StructureMembers.Member m) {
    Ghcnm2.VinfoField f = (Ghcnm2.VinfoField) m.getDataObject();
    return ((Number) parse(m.getDataType(), f)).longValue();
  }

  @Override
  public double getScalarDouble(StructureMembers.Member m) {
    Ghcnm2.VinfoField f = (Ghcnm2.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) {
    Ghcnm2.VinfoField f = (Ghcnm2.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];
    Ghcnm2.VinfoField f = (Ghcnm2.VinfoField) m.getDataObject();
    for (int i=0; i